The concept of OBE(outcome-based education)is more focused on designing and implementing teaching activities around expected learning outcomes than the traditional teaching model and enhancing the quality of education...The concept of OBE(outcome-based education)is more focused on designing and implementing teaching activities around expected learning outcomes than the traditional teaching model and enhancing the quality of education through clear and measurable learning outcomes,which has led to profound changes in the field of education.However,environmental design practice teaching faces a series of challenges in the implementation of the OBE concept,including the complexity of the assessment system,personalized learning and creative learning,and over-reliance on quantitative assessment.Therefore,in order to further deepen the professionalization of the OBE concept,we have conducted research on the design education practice models at home and abroad,explored the practice teaching models and their applications such as project system,studio model,practical internships,and technology-driven interdisciplinary integration,and took the practice innovative teaching models of Stanford d.school and Rhode Island School of Design(RISD)as examples to explore the characteristics of the curricula,cultivation modes,and the development of the environmental design professional practice teaching model.The characteristics of OBE and RISD are discussed to provide a global vision and local contextual reference for the practice teaching reform of environmental design majors.展开更多
This paper analyzes the geographical,climatic,cultural and religious factors that influence station building design,and discusses the characteristics and design concepts of traditional Indonesian building.Additionally...This paper analyzes the geographical,climatic,cultural and religious factors that influence station building design,and discusses the characteristics and design concepts of traditional Indonesian building.Additionally,the following innovative concepts are proposed for station building design:innovation in the building form that organically integrates high speed railway characteristics with regional features;innovation in spatial layout that adapts to the local climate and culture;innovation in flexible flow lines and diverse commercial spaces;innovation in interior design that fully incorporates the local culture.The station buildings of Jakarta-Bandung HSR not only fulfill the function of passenger riding but also serve as prominent landmark structures that spread regional culture and represent the city's image so as to offer valuable insights for the design of high speed railway station buildings in future overseas projects.展开更多
This article analyzes the implementation of new environmentally friendly design practices in the construction of mountain highways.It covers topics such as green highway design concepts,alignment principles,and green ...This article analyzes the implementation of new environmentally friendly design practices in the construction of mountain highways.It covers topics such as green highway design concepts,alignment principles,and green practices specifically for mountainous highway design.This analysis aims to provide useful insights for creating green mountain highways that meet the demands of modern times.展开更多
Parallel with the increasing development of China's social economy,many people are paying attention to the high-level design quality of interior design and the aesthetics and environmental protection of interior d...Parallel with the increasing development of China's social economy,many people are paying attention to the high-level design quality of interior design and the aesthetics and environmental protection of interior design.Therefore,the concept of integrating green design has become the focus of designers in the works of interior design.Based on the overview of green interior design concept,the author introduces the role and principles of green design concept in interior design,and discusses in detail the key applications of green design concept in interior design,hoping to provide reference and guidance for interior design practitioners.展开更多
Homology of drama and architecture in the early development stage decides the close relationship between both,drama stage design and architectural structural design always apply different approaches but achieve equall...Homology of drama and architecture in the early development stage decides the close relationship between both,drama stage design and architectural structural design always apply different approaches but achieve equally satisfactory results.Stage layout and structural design often use architectural symbols,and application of architectural symbols in drama is a common approach of stage art design.But the designer of Jiuzhai Paradise International Conference and Resort Center-the project won Lu Ban Award did exactly the opposite by taking drama elements such as time,figures,location and plot to the "stage" of architecture,and telling visitors a story between traditional Tibetan,Qiang culture and primitive forest life over one thousand years,he indeed created a unique classic architecture using the concept of drama stage design.展开更多
Ghanaian society and the world at large have shown a strong interest in the use of lampshades with evidence from hotels and residential dwellings. Table-top Lampshades direct the rays of light to make sight easier for...Ghanaian society and the world at large have shown a strong interest in the use of lampshades with evidence from hotels and residential dwellings. Table-top Lampshades direct the rays of light to make sight easier for reading whereas bedside lampshades provide romantic illumination and beautification in bedrooms. This art studio research sought to examine lampshades on Ghanaian market;their qualities, significance, shortcomings, etc. as the basis to design and produce inventive lampshades for private and public use. The study was conducted at an art studio condition using Practice-based research design method. Findings show that lampshades serve functional and aesthetic significance in public dwellings and the hospitality industry. Nonetheless, available lampshades on the Ghanaian market lack the multifunctional property as well as a local touch which arguably makes them misfit in Ghanaian context in terms of usage. The innovative results of the studio-produced lampshades revealed the possibility of creating symbolic and multifunctional lampshades which suit specific space and tradition. The study recommends the adoption of such innovative design approach in the creation of interior design and decoration artefacts for residential and public edifices.展开更多
The design and execution of large-scale housing projects always have negative environmental impacts in terms of excessive consumption of non-renewable energy resources and environmental pollution. These negative impac...The design and execution of large-scale housing projects always have negative environmental impacts in terms of excessive consumption of non-renewable energy resources and environmental pollution. These negative impacts are multiplied in the case of large-scale housing projects where a large number of standardized units are implemented in a repeated manner. This proposed paper will study and evaluate the environmental impacts of large-scale housing projects according to criteria of environmental design. The case study project is Haram City that is a housing project for small low-income families. The project consists of 50,000 housing units and is located in 6th of October City, which has a hot dry desert climate that necessitates special design considerations and applications of environmental design concepts. The project will be analyzed and evaluated in terms of site layout, design of buildings, orientation, materials used, construction techniques, thermal behavior, landscaping, etc.展开更多
The sustainability of the planning and design goals of urban green land and that of its maintenance and management are mutually related and act as an organic whole. For a long time, the independence of the two is more...The sustainability of the planning and design goals of urban green land and that of its maintenance and management are mutually related and act as an organic whole. For a long time, the independence of the two is more prominent than their organic connection. This research has made preliminary considerations from three aspects. First, it concerns infusing the concept of ecology, contemplating and demonstrating space, as well as reducing the incidence of plant diseases and insect pests of urban green land. Second, the arrangement of flowers and trees for the planning and design of urban green land should comply with the biological attributes of flowers and trees to realize the organic unification of biological and scenic attributes of flowers and trees. Third, the planning and design of urban green land should attach importance to the organic unification of biological and scenic attributes of lawn grass seeds and reduce the difficulty of maintaining lawn. This research attempts to reduce the pressure of maintaining urban green land from the beginning, i.e. the planning and design of urban green land. It also tries to reduce the cost of maintenance and management to the realize planning and design goals of urban green land and the sustainability concerning its maintenance and management and arrive at the mutual unification of the planning and design as well as maintenance and management of urban green land.展开更多
With the current,our country social economy rapid development,people's living standard and quality of life and therefore have got improved,at the same time,it is the concept of environmental protection and energy ...With the current,our country social economy rapid development,people's living standard and quality of life and therefore have got improved,at the same time,it is the concept of environmental protection and energy saving is also enhanced value,many fields in our country environmental protection and energysaving concept can be seen in the application,especially the application in building water supply and drainage design more widely,to protect the environment,to maximize the use of limited resources,how to reasonable use of water resources in building water supply and drainage construction,above is current the paper mainly discusses the problems in the construction field,this paper based on environmental protection and energy-saving concept,discusses its application in the building water supply and drainage design,for your reference.展开更多
This study explored the origin and development of modern garden city,by integrating concepts of world modern garden city and characteristics of Chengdu cultures,analyzed the application of its aesthetic value and the ...This study explored the origin and development of modern garden city,by integrating concepts of world modern garden city and characteristics of Chengdu cultures,analyzed the application of its aesthetic value and the design of its artistic conception.It was found that Chengdu City had high aesthetic value such as a large area of green spaces and unique recreational cultures,as well as a great potential of unifying idyllic images and natural cultures.To design Chengdu into a world modern garden city,the planning of its urban green space system should be taken as the foundation,"one group and three districts" as the construction system,urban folk cultures,logistics and traffic,information and other such networks as the support to achieve the "beauty of nature,social equity and urban-rural integration".展开更多
This paper explores the innovative ways of teaching mode of environmental art design major under the concept of OBE.Through theoretical elaboration,combined with the understanding of literature and practical work expe...This paper explores the innovative ways of teaching mode of environmental art design major under the concept of OBE.Through theoretical elaboration,combined with the understanding of literature and practical work experience,it innovates from three aspects of teaching concept,teaching system and training objectives,and establishes an innovative teaching system.展开更多
In order to shorten aero-engine axial length,substituting the traditional long chord thick strut design accompanied with the traditional low pressure(LP) stage nozzle,LP turbine is integrated with intermediate turbine...In order to shorten aero-engine axial length,substituting the traditional long chord thick strut design accompanied with the traditional low pressure(LP) stage nozzle,LP turbine is integrated with intermediate turbine duct(ITD).In the current paper,five vanes of the first stage LP turbine nozzle is replaced with loaded struts for supporting the engine shaft,and providing oil pipes circumferentially which fulfilled the areo-engine structure requirement.However,their bulky geometric size represents a more effective obstacle to flow from high pressure(HP) turbine rotor.These five struts give obvious influence for not only the LP turbine nozzle but also the flowfield within the ITD,and hence cause higher loss.Numerical investigation has been undertaken to observe the influence of the Nozzle-Strut integrated design concept on the flowfield within the ITD and the nearby nozzle blades.According to the computational results,three main conclusions are finally obtained.Firstly,a noticeable low speed area is formed near the strut's leading edge,which is no doubt caused by the potential flow effects.Secondly,more severe radial migration of boundary layer flow adjacent to the strut's pressure side have been found near the nozzle's trailing edge.Such boundary layer migration is obvious,especially close to the shroud domain.Meanwhile,radial pressure gradient aggravates this phenomenon.Thirdly,velocity distribution along the strut's pressure side on nozzle's suction surface differs,which means loading variation of the nozzle.And it will no doubt cause nonuniform flowfield faced by the downstream rotor blade.展开更多
Tower, Spar platform and mooring system are designed in the project based on a given 6-MW wind turbine. Under wind-induced only, wave-induced only and combined wind and wave induced loads, dynamic response is analyzed...Tower, Spar platform and mooring system are designed in the project based on a given 6-MW wind turbine. Under wind-induced only, wave-induced only and combined wind and wave induced loads, dynamic response is analyzed for a 6-MW Spar-type floating offshore wind turbine (FOWT) under operating conditions and parked conditions respectively. Comparison with a platform-fixed system (land-based system) ofa 6-MW wind turbine is carried out as well. Results demonstrate that the maximal out-of-plane deflection of the blade of a Spar-type system is 3.1% larger than that of a land-based system; the maximum response value of the nacelle acceleration is 215% larger for all the designed load cases being considered; the ultimate tower base fore-aft bending moment of the Spar-type system is 92% larger than that of the land-based system in all of the Design Load Cases (DLCs) being considered; the fluctuations of the mooring tension is mainly wave-induced, and the safety factor of the mooring tension is adequate for the 6-MW FOWT. The results can provide relevant modifications to the initial design for the Spar-type system, the detailed design and model basin test of the 6-MW Spar-type system.展开更多
A hybrid conceptual design approach was introduced in this study to develop a conceptual design of oil palm polymer composite automotive crash box(ACB). A combination of theory of inventive problem solving(TRIZ), morp...A hybrid conceptual design approach was introduced in this study to develop a conceptual design of oil palm polymer composite automotive crash box(ACB). A combination of theory of inventive problem solving(TRIZ), morphological charts and biomimetics was applied where the foremost requirements in terms of the material characteristics, function specifications, force identification, root cause analysis, geometry profile and design selection criteria were considered. The strategy was to use creations of nature to inspire five innovative conceptual designs of the ACB structure and the AHP method was applied to perform the pairwise analysis of selecting the best ACB conceptual design. A new conceptual design for a composite ACB was conceived bearing in mind the properties of natural fibre, unlike those of conventional materials such as steel alloys and aluminium alloys. The design with the highest ranking(26.6 %) was chosen as the final conceptual design, which was the one with a honeycomb structure for the outermost profile, reinforced with a spider web structure inside the part, supported by fibre foam structure extracted from the woodpecker sponge tissue at the centre to maximize the energy absorption capability. The new design could solve the problem of bending collapse which is a major cause of failure to absorb maximum impact energy for ACB during collision. However, the final conceptual design will still need several modifications for production and assembly purposes, which will be completed in a further study.展开更多
The system is based on the globally shared product model conforming to VRML Standard, and uses SmarTeam (PDM) system to integrate and encapsulate CAD, CAE and other application software for product development. The ...The system is based on the globally shared product model conforming to VRML Standard, and uses SmarTeam (PDM) system to integrate and encapsulate CAD, CAE and other application software for product development. The system takes sugarcane harvester? mobile telephone design analysis and evaluation as an example, and utilizes fuzzy evaluation principle to evaluate the design and simulation analysis results for decisions making. The platform provides a collaborative intelligent environment for the design of products, aiming at integrating people, process and data in the virtual product development. The multi-layered system architecture provides capability for KBM and conception innovation design process with a single unified data and process model so as to achieve true process streamlining and data integrity throughout the entire product development lifecycle, and hence improves enterprises efficiency.展开更多
Facing with the ever changing effect of internation al and domestic environments, purely new questions, higher requirements, more chal lenges and opportunities, the conventional management pattern of enterprise seem s...Facing with the ever changing effect of internation al and domestic environments, purely new questions, higher requirements, more chal lenges and opportunities, the conventional management pattern of enterprise seem s to be very limited. Concept design is a modern design method of sustainable de velopment strategy rather than a simple design of a certain level within an ente rprise. The digital virtual integration system, which is established on the basi s of concept design, focuses on the comprehensive balance of enterprise developm ent orientation, advanced technology of manufacturing industry and various scien ces, pours into an enterprise a rational, modern and foresight concept and provi des an enterprise with a scientific base to learn from the developed countries a nd regions in the light of its own actuality and characteristics with the final aim to make a perfect and correct decision.展开更多
A conceptual design review of the ITER gas injection system (GIS) function, safety, operation, and maintenance has recently been successfully completed. The GIS design can now continue to the preliminary design stag...A conceptual design review of the ITER gas injection system (GIS) function, safety, operation, and maintenance has recently been successfully completed. The GIS design can now continue to the preliminary design stage. This paper gives an overall description of the requirements and implementation at the concept design level. The designs of the sub-systems according to its breakdown structure are discussed against the corresponding requirements.展开更多
Goal based and limit state design is nowadays a well-established approach in many engineering fields.Ship construction rules started introducing such concepts since early 2000.However,classification societies’rules d...Goal based and limit state design is nowadays a well-established approach in many engineering fields.Ship construction rules started introducing such concepts since early 2000.However,classification societies’rules do not provide hints on how to verify limit states and to determine the structural layout of submerged thin-walled stiffened cylinders,whose most prominent examples are submarines.Rather,they generally offer guidance and prescriptive formulations to assess shell plating and stiffening members.Such marine structures are studied,designed and built up to carry payloads below the sea surface.In the concept-design stage,the maximum operating depth is the governing hull scantling parameter.Main dimensions are determined based on the analysis of operational requirements.This study proposes a practical conceptdesign approach for conceptual submarine design,aimed at obtaining hull structures that maximize the payload capacity in terms of available internal volume by suitably adjusting structural layout and stiffening members’scantling,duly accounting for robustness and construction constraints as well as practical fabrication issues.The proposed scantling process highlights that there is no need of complex algorithms if sound engineering judgment is applied in setting down rationally the hull scantling problem.A systematic approach based on a computer-coded procedure developed on purpose was effectively implemented and satisfactorily applied in design practice.展开更多
The paper had illustrated concept and positioning of avant-garde,and proposed that there were three major methods to manifest concepts in conceptual landscape design,which were:① reproduced landscape from historical ...The paper had illustrated concept and positioning of avant-garde,and proposed that there were three major methods to manifest concepts in conceptual landscape design,which were:① reproduced landscape from historical perspective;② landscape of local characteristic based on fields;③ landscape of abstract formal beauty with visual impact.Characteristics of conceptual landscape design had been summarized by taking classical design by Martha Schwartz for example,which contained ① fuzzy boundary between art and garden,② gardens full of imagination and freedom,③ pioneering spirit full of courage and challenge.Finally,the paper had predicted the future of conceptual landscape design and considered that conceptual design would change with the emergence of high-tech and new materials;and conceptual landscape designers should be in possession of pioneering spirit of challenge and innovation.展开更多
This research tried to propose possible ways to resolve the paper over-consumption issues. The nature resources have been over used all the time. How we used the technologies to solve environmental problems has become...This research tried to propose possible ways to resolve the paper over-consumption issues. The nature resources have been over used all the time. How we used the technologies to solve environmental problems has become an essential issue. How we could develop a prosperous vision for the future is even critical to solving design problems. The research methods used are literature reviews and conception design with empathy. This paper also tried to discuss various issues from different aspects. Nowadays, we have been influenced by technologies in our daily life. Even our cultures, life styles, and behavior, etc. are deeply changed. However, there are few ways we need to think what will happen in the future and how we could imagine possible ways to solve all of these problems. This research has proposed The Virtual Home (T.V.H.), which is a way to change the mass media dissemination and information control. The T.V.H. designed with some functions is trying to centralize all kind of mass media and help save natural resources.展开更多
基金Chongqing Engineering Institute’s Educational Reform Project“Research on the Reform of the Practical Teaching Curriculum System of Environmental Design Based on the OBE Concept”(Project number:JY2023209)The First-Class Curriculum Construction Project of Rural Landscape Design and Practice in 2023(Project number:KC20230122)。
文摘The concept of OBE(outcome-based education)is more focused on designing and implementing teaching activities around expected learning outcomes than the traditional teaching model and enhancing the quality of education through clear and measurable learning outcomes,which has led to profound changes in the field of education.However,environmental design practice teaching faces a series of challenges in the implementation of the OBE concept,including the complexity of the assessment system,personalized learning and creative learning,and over-reliance on quantitative assessment.Therefore,in order to further deepen the professionalization of the OBE concept,we have conducted research on the design education practice models at home and abroad,explored the practice teaching models and their applications such as project system,studio model,practical internships,and technology-driven interdisciplinary integration,and took the practice innovative teaching models of Stanford d.school and Rhode Island School of Design(RISD)as examples to explore the characteristics of the curricula,cultivation modes,and the development of the environmental design professional practice teaching model.The characteristics of OBE and RISD are discussed to provide a global vision and local contextual reference for the practice teaching reform of environmental design majors.
文摘This paper analyzes the geographical,climatic,cultural and religious factors that influence station building design,and discusses the characteristics and design concepts of traditional Indonesian building.Additionally,the following innovative concepts are proposed for station building design:innovation in the building form that organically integrates high speed railway characteristics with regional features;innovation in spatial layout that adapts to the local climate and culture;innovation in flexible flow lines and diverse commercial spaces;innovation in interior design that fully incorporates the local culture.The station buildings of Jakarta-Bandung HSR not only fulfill the function of passenger riding but also serve as prominent landmark structures that spread regional culture and represent the city's image so as to offer valuable insights for the design of high speed railway station buildings in future overseas projects.
文摘This article analyzes the implementation of new environmentally friendly design practices in the construction of mountain highways.It covers topics such as green highway design concepts,alignment principles,and green practices specifically for mountainous highway design.This analysis aims to provide useful insights for creating green mountain highways that meet the demands of modern times.
文摘Parallel with the increasing development of China's social economy,many people are paying attention to the high-level design quality of interior design and the aesthetics and environmental protection of interior design.Therefore,the concept of integrating green design has become the focus of designers in the works of interior design.Based on the overview of green interior design concept,the author introduces the role and principles of green design concept in interior design,and discusses in detail the key applications of green design concept in interior design,hoping to provide reference and guidance for interior design practitioners.
基金Sponsored by China Scholarship Council(CSC 201507670001)
文摘Homology of drama and architecture in the early development stage decides the close relationship between both,drama stage design and architectural structural design always apply different approaches but achieve equally satisfactory results.Stage layout and structural design often use architectural symbols,and application of architectural symbols in drama is a common approach of stage art design.But the designer of Jiuzhai Paradise International Conference and Resort Center-the project won Lu Ban Award did exactly the opposite by taking drama elements such as time,figures,location and plot to the "stage" of architecture,and telling visitors a story between traditional Tibetan,Qiang culture and primitive forest life over one thousand years,he indeed created a unique classic architecture using the concept of drama stage design.
文摘Ghanaian society and the world at large have shown a strong interest in the use of lampshades with evidence from hotels and residential dwellings. Table-top Lampshades direct the rays of light to make sight easier for reading whereas bedside lampshades provide romantic illumination and beautification in bedrooms. This art studio research sought to examine lampshades on Ghanaian market;their qualities, significance, shortcomings, etc. as the basis to design and produce inventive lampshades for private and public use. The study was conducted at an art studio condition using Practice-based research design method. Findings show that lampshades serve functional and aesthetic significance in public dwellings and the hospitality industry. Nonetheless, available lampshades on the Ghanaian market lack the multifunctional property as well as a local touch which arguably makes them misfit in Ghanaian context in terms of usage. The innovative results of the studio-produced lampshades revealed the possibility of creating symbolic and multifunctional lampshades which suit specific space and tradition. The study recommends the adoption of such innovative design approach in the creation of interior design and decoration artefacts for residential and public edifices.
文摘The design and execution of large-scale housing projects always have negative environmental impacts in terms of excessive consumption of non-renewable energy resources and environmental pollution. These negative impacts are multiplied in the case of large-scale housing projects where a large number of standardized units are implemented in a repeated manner. This proposed paper will study and evaluate the environmental impacts of large-scale housing projects according to criteria of environmental design. The case study project is Haram City that is a housing project for small low-income families. The project consists of 50,000 housing units and is located in 6th of October City, which has a hot dry desert climate that necessitates special design considerations and applications of environmental design concepts. The project will be analyzed and evaluated in terms of site layout, design of buildings, orientation, materials used, construction techniques, thermal behavior, landscaping, etc.
基金Sponsored by S & T Development Program(2008)of Suzhou Municipal S&T Bureau:"Study on the Early-warning Standards for the Protection and Monitoring of Ancient Trees in Suzhou Classical Gardens(SS08055)~~
文摘The sustainability of the planning and design goals of urban green land and that of its maintenance and management are mutually related and act as an organic whole. For a long time, the independence of the two is more prominent than their organic connection. This research has made preliminary considerations from three aspects. First, it concerns infusing the concept of ecology, contemplating and demonstrating space, as well as reducing the incidence of plant diseases and insect pests of urban green land. Second, the arrangement of flowers and trees for the planning and design of urban green land should comply with the biological attributes of flowers and trees to realize the organic unification of biological and scenic attributes of flowers and trees. Third, the planning and design of urban green land should attach importance to the organic unification of biological and scenic attributes of lawn grass seeds and reduce the difficulty of maintaining lawn. This research attempts to reduce the pressure of maintaining urban green land from the beginning, i.e. the planning and design of urban green land. It also tries to reduce the cost of maintenance and management to the realize planning and design goals of urban green land and the sustainability concerning its maintenance and management and arrive at the mutual unification of the planning and design as well as maintenance and management of urban green land.
文摘With the current,our country social economy rapid development,people's living standard and quality of life and therefore have got improved,at the same time,it is the concept of environmental protection and energy saving is also enhanced value,many fields in our country environmental protection and energysaving concept can be seen in the application,especially the application in building water supply and drainage design more widely,to protect the environment,to maximize the use of limited resources,how to reasonable use of water resources in building water supply and drainage construction,above is current the paper mainly discusses the problems in the construction field,this paper based on environmental protection and energy-saving concept,discusses its application in the building water supply and drainage design,for your reference.
基金Supported by Protection of Linpan Resources and Demonstration Protection of Bamboo Industry Chain Cultivation in West Sichuan under the Supervision of Sichuan Provincial Department of Science and Technology (2009FZ0028)~~
文摘This study explored the origin and development of modern garden city,by integrating concepts of world modern garden city and characteristics of Chengdu cultures,analyzed the application of its aesthetic value and the design of its artistic conception.It was found that Chengdu City had high aesthetic value such as a large area of green spaces and unique recreational cultures,as well as a great potential of unifying idyllic images and natural cultures.To design Chengdu into a world modern garden city,the planning of its urban green space system should be taken as the foundation,"one group and three districts" as the construction system,urban folk cultures,logistics and traffic,information and other such networks as the support to achieve the "beauty of nature,social equity and urban-rural integration".
文摘This paper explores the innovative ways of teaching mode of environmental art design major under the concept of OBE.Through theoretical elaboration,combined with the understanding of literature and practical work experience,it innovates from three aspects of teaching concept,teaching system and training objectives,and establishes an innovative teaching system.
基金supported by grants from the National Natural Science Foundation of China(No.51306177)
文摘In order to shorten aero-engine axial length,substituting the traditional long chord thick strut design accompanied with the traditional low pressure(LP) stage nozzle,LP turbine is integrated with intermediate turbine duct(ITD).In the current paper,five vanes of the first stage LP turbine nozzle is replaced with loaded struts for supporting the engine shaft,and providing oil pipes circumferentially which fulfilled the areo-engine structure requirement.However,their bulky geometric size represents a more effective obstacle to flow from high pressure(HP) turbine rotor.These five struts give obvious influence for not only the LP turbine nozzle but also the flowfield within the ITD,and hence cause higher loss.Numerical investigation has been undertaken to observe the influence of the Nozzle-Strut integrated design concept on the flowfield within the ITD and the nearby nozzle blades.According to the computational results,three main conclusions are finally obtained.Firstly,a noticeable low speed area is formed near the strut's leading edge,which is no doubt caused by the potential flow effects.Secondly,more severe radial migration of boundary layer flow adjacent to the strut's pressure side have been found near the nozzle's trailing edge.Such boundary layer migration is obvious,especially close to the shroud domain.Meanwhile,radial pressure gradient aggravates this phenomenon.Thirdly,velocity distribution along the strut's pressure side on nozzle's suction surface differs,which means loading variation of the nozzle.And it will no doubt cause nonuniform flowfield faced by the downstream rotor blade.
基金financially supported by the National Basic Research Program of China(973 Program,Grant No.2014CB046205)
文摘Tower, Spar platform and mooring system are designed in the project based on a given 6-MW wind turbine. Under wind-induced only, wave-induced only and combined wind and wave induced loads, dynamic response is analyzed for a 6-MW Spar-type floating offshore wind turbine (FOWT) under operating conditions and parked conditions respectively. Comparison with a platform-fixed system (land-based system) ofa 6-MW wind turbine is carried out as well. Results demonstrate that the maximal out-of-plane deflection of the blade of a Spar-type system is 3.1% larger than that of a land-based system; the maximum response value of the nacelle acceleration is 215% larger for all the designed load cases being considered; the ultimate tower base fore-aft bending moment of the Spar-type system is 92% larger than that of the land-based system in all of the Design Load Cases (DLCs) being considered; the fluctuations of the mooring tension is mainly wave-induced, and the safety factor of the mooring tension is adequate for the 6-MW FOWT. The results can provide relevant modifications to the initial design for the Spar-type system, the detailed design and model basin test of the 6-MW Spar-type system.
基金Project(6369107)supported by the Ministry of Higher Education,Malaysia
文摘A hybrid conceptual design approach was introduced in this study to develop a conceptual design of oil palm polymer composite automotive crash box(ACB). A combination of theory of inventive problem solving(TRIZ), morphological charts and biomimetics was applied where the foremost requirements in terms of the material characteristics, function specifications, force identification, root cause analysis, geometry profile and design selection criteria were considered. The strategy was to use creations of nature to inspire five innovative conceptual designs of the ACB structure and the AHP method was applied to perform the pairwise analysis of selecting the best ACB conceptual design. A new conceptual design for a composite ACB was conceived bearing in mind the properties of natural fibre, unlike those of conventional materials such as steel alloys and aluminium alloys. The design with the highest ranking(26.6 %) was chosen as the final conceptual design, which was the one with a honeycomb structure for the outermost profile, reinforced with a spider web structure inside the part, supported by fibre foam structure extracted from the woodpecker sponge tissue at the centre to maximize the energy absorption capability. The new design could solve the problem of bending collapse which is a major cause of failure to absorb maximum impact energy for ACB during collision. However, the final conceptual design will still need several modifications for production and assembly purposes, which will be completed in a further study.
文摘The system is based on the globally shared product model conforming to VRML Standard, and uses SmarTeam (PDM) system to integrate and encapsulate CAD, CAE and other application software for product development. The system takes sugarcane harvester? mobile telephone design analysis and evaluation as an example, and utilizes fuzzy evaluation principle to evaluate the design and simulation analysis results for decisions making. The platform provides a collaborative intelligent environment for the design of products, aiming at integrating people, process and data in the virtual product development. The multi-layered system architecture provides capability for KBM and conception innovation design process with a single unified data and process model so as to achieve true process streamlining and data integrity throughout the entire product development lifecycle, and hence improves enterprises efficiency.
文摘Facing with the ever changing effect of internation al and domestic environments, purely new questions, higher requirements, more chal lenges and opportunities, the conventional management pattern of enterprise seem s to be very limited. Concept design is a modern design method of sustainable de velopment strategy rather than a simple design of a certain level within an ente rprise. The digital virtual integration system, which is established on the basi s of concept design, focuses on the comprehensive balance of enterprise developm ent orientation, advanced technology of manufacturing industry and various scien ces, pours into an enterprise a rational, modern and foresight concept and provi des an enterprise with a scientific base to learn from the developed countries a nd regions in the light of its own actuality and characteristics with the final aim to make a perfect and correct decision.
基金undertaken within the framework of the ITER Projectsupported by the ITER Organization and/or its Members,i.e.,China,EU,India,Japan,Korea,Russia
文摘A conceptual design review of the ITER gas injection system (GIS) function, safety, operation, and maintenance has recently been successfully completed. The GIS design can now continue to the preliminary design stage. This paper gives an overall description of the requirements and implementation at the concept design level. The designs of the sub-systems according to its breakdown structure are discussed against the corresponding requirements.
基金Supported by the Italian Ministry of Defense-Segredifesa,in collaboration with Fincantieri under Grant of the ASAMS(Aspetti specialistici e approccio metodologico per progettazione di sottomarini di ultima generazione)project(2019-2022).
文摘Goal based and limit state design is nowadays a well-established approach in many engineering fields.Ship construction rules started introducing such concepts since early 2000.However,classification societies’rules do not provide hints on how to verify limit states and to determine the structural layout of submerged thin-walled stiffened cylinders,whose most prominent examples are submarines.Rather,they generally offer guidance and prescriptive formulations to assess shell plating and stiffening members.Such marine structures are studied,designed and built up to carry payloads below the sea surface.In the concept-design stage,the maximum operating depth is the governing hull scantling parameter.Main dimensions are determined based on the analysis of operational requirements.This study proposes a practical conceptdesign approach for conceptual submarine design,aimed at obtaining hull structures that maximize the payload capacity in terms of available internal volume by suitably adjusting structural layout and stiffening members’scantling,duly accounting for robustness and construction constraints as well as practical fabrication issues.The proposed scantling process highlights that there is no need of complex algorithms if sound engineering judgment is applied in setting down rationally the hull scantling problem.A systematic approach based on a computer-coded procedure developed on purpose was effectively implemented and satisfactorily applied in design practice.
文摘The paper had illustrated concept and positioning of avant-garde,and proposed that there were three major methods to manifest concepts in conceptual landscape design,which were:① reproduced landscape from historical perspective;② landscape of local characteristic based on fields;③ landscape of abstract formal beauty with visual impact.Characteristics of conceptual landscape design had been summarized by taking classical design by Martha Schwartz for example,which contained ① fuzzy boundary between art and garden,② gardens full of imagination and freedom,③ pioneering spirit full of courage and challenge.Finally,the paper had predicted the future of conceptual landscape design and considered that conceptual design would change with the emergence of high-tech and new materials;and conceptual landscape designers should be in possession of pioneering spirit of challenge and innovation.
文摘This research tried to propose possible ways to resolve the paper over-consumption issues. The nature resources have been over used all the time. How we used the technologies to solve environmental problems has become an essential issue. How we could develop a prosperous vision for the future is even critical to solving design problems. The research methods used are literature reviews and conception design with empathy. This paper also tried to discuss various issues from different aspects. Nowadays, we have been influenced by technologies in our daily life. Even our cultures, life styles, and behavior, etc. are deeply changed. However, there are few ways we need to think what will happen in the future and how we could imagine possible ways to solve all of these problems. This research has proposed The Virtual Home (T.V.H.), which is a way to change the mass media dissemination and information control. The T.V.H. designed with some functions is trying to centralize all kind of mass media and help save natural resources.