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Design of Barrier-free Evacuation for Diverse Crowd on Campus Based on Evacuation Simulation: A Case Study of North China University of Technology
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作者 ZHANG Zonghui SONG Rui +1 位作者 AN Zeyi ZHAO Xingmin 《Journal of Landscape Research》 2024年第5期19-26,共8页
By using evacuation simulation technology and taking North China University of Technology as an example,the barrier-free evacuation design scheme for groups with different needs in campus environment was deeply discus... By using evacuation simulation technology and taking North China University of Technology as an example,the barrier-free evacuation design scheme for groups with different needs in campus environment was deeply discussed.Based on the data of building layout,population composition,road system and distribution of shelters in the school,a detailed evacuation model was constructed in the Pathfinder emergency evacuation simulation system.By the simulation during the daytime and at night,the total evacuation time of the whole school,evacuation completion time of each building,selection of evacuation paths and shelter utilization were analyzed in detail.The simulation results show that the distribution of shelters on campus is uneven,and their capacity is limited.As a result,the evacuation paths of the disabled,the elderly and children need to be adjusted frequently,which affects the overall evacuation efficiency.In view of this,the optimization strategies of road renovation and entrances of shelters and buildings were put forward from the perspective of space planning.From the perspective of emergency management,it is suggested to improve the campus evacuation infrastructure and strengthen the evacuation drill for teachers and students.These results provide a solid theoretical support for enhancing the construction of campus barrier-free environment and improving the level of emergency management. 展开更多
关键词 Diverse crowd Campus barrier-free evacuation design Analogue simulation SHELTER
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基于nCode Design-Life的某车架疲劳可靠性分析 被引量:55
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作者 李成林 宋莎莎 韩振南 《图学学报》 CSCD 北大核心 2014年第1期42-45,共4页
针对某型半挂牵引车车架局部出现裂纹或者断裂现象,通过有限元理论和疲劳分析理论相结合进行了车架的有限元分析和疲劳可靠性分析。首先对该车架进行了建模和有限元静态特性分析,然后定义了特定的时间载荷序列数据和材料参数,选用了S-N... 针对某型半挂牵引车车架局部出现裂纹或者断裂现象,通过有限元理论和疲劳分析理论相结合进行了车架的有限元分析和疲劳可靠性分析。首先对该车架进行了建模和有限元静态特性分析,然后定义了特定的时间载荷序列数据和材料参数,选用了S-N疲劳设计和静态疲劳分析方法,利用疲劳分析软件nCode Design-Life对该车架进行疲劳可靠性分析,得出该车架的疲劳结果云图和各节点的疲劳寿命,并从相关云图中确定出车架容易破坏的位置和其寿命之后再进行样车实验验证。 展开更多
关键词 车架 疲劳可靠性 S-N曲线 有限元 nCode design-life
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基于nCode Design-Life的某液压缸疲劳可靠性分析 被引量:3
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作者 宋伟伦 蒋文志 +2 位作者 张茂金 王守习 赖恩晖 《山东交通学院学报》 CAS 2016年第1期70-73,共4页
针对某型径向柱塞马达液压缸工作过程中出现的裂纹现象,在Workbench和n Code Design-Life软件中对液压缸进行有限元分析和疲劳可靠性分析。得出该液压缸的疲劳寿命和疲劳损伤云图,确定液压缸的易破坏位置为轴根部,试验验证结果与软件分... 针对某型径向柱塞马达液压缸工作过程中出现的裂纹现象,在Workbench和n Code Design-Life软件中对液压缸进行有限元分析和疲劳可靠性分析。得出该液压缸的疲劳寿命和疲劳损伤云图,确定液压缸的易破坏位置为轴根部,试验验证结果与软件分析相一致。 展开更多
关键词 液压缸 有限元分析 疲劳可靠性 nCode designlife
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基于nCode Design-Life的电动客车车架疲劳寿命分析 被引量:14
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作者 周美施 张铁柱 +2 位作者 尹怀仙 张洪信 刘高君 《青岛大学学报(工程技术版)》 CAS 2015年第4期96-100,共5页
针对某型电动客车车架疲劳及寿命问题,本文以有限元理论和疲劳分析理论相结合的方法,对电动客车车架进行静强度分析和疲劳寿命校核,建立有限元模型并进行受力分析,定义特定的载荷谱和材料疲劳数据;同时利用S-N静态疲劳设计方法,选用疲... 针对某型电动客车车架疲劳及寿命问题,本文以有限元理论和疲劳分析理论相结合的方法,对电动客车车架进行静强度分析和疲劳寿命校核,建立有限元模型并进行受力分析,定义特定的载荷谱和材料疲劳数据;同时利用S-N静态疲劳设计方法,选用疲劳分析软件nCode Design-Life对该车架进行疲劳可靠性分析。分析结果表明,该车架的疲劳寿命为1.558×106次,许用行驶里程为650 000km,与公交客运车行驶里程参考值约为400 000km相比,结果满足要求。该研究实现了电动车减重节能,增加了续驶里程,为车架优化设计及寿命模型的建立提供了理论依据。 展开更多
关键词 车架 疲劳强度 S-N曲线 有限元 nCode design-life
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Optimal Design of Multiple Stress Constant Accelerated Life Test Plan on Non-rectangle Test Region 被引量:8
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作者 CHEN Wenhua GAO Liang +2 位作者 LIU Juan QIAN Ping PAN Jun 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2012年第6期1231-1237,共7页
For optimal design of constant stress accelerated life test(CSALT) with two-stress, if the stresses could not reach the highest levels simultaneously, the test region becomes non-rectangular. For optimal CSALT desig... For optimal design of constant stress accelerated life test(CSALT) with two-stress, if the stresses could not reach the highest levels simultaneously, the test region becomes non-rectangular. For optimal CSALT design on non-rectangle test region, the present method is only focused on non-rectangle test region with simple boundary, and the optimization algorithm is based on experience which can not ensure to obtain the optimal plan. In this paper, considering the linear-extreme value model and the optimization goal to minimize the variance of lifetime estimate under normal stress, the optimal design method of two-stress type-I censored CSALT plan on general non-rectangular test region is proposed. First, two properties of optimal test plans are proved and the relationship of all the optimal test plans is determined analytically. Then, on the basis of the two properties, the optimal problem is simplified and the optimal design method of two-stress CSALT plan on general non-rectangular test region is proposed. Finally, a numerical example is used to illustrate the feasibility and effectiveness of the method, The result shows that the proposed method could obtain the optimal test plan on non-rectangular test regions with arbitrary boundaries. This research provides the theory and method for two-stress optimal CSALT planning on non-rectangular test regions. 展开更多
关键词 accelerated life test non- rectangular test region test plan optimal design
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Design of Accelerated Life Test Plans——Overview and Prospect 被引量:2
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作者 Wen-Hua Chen Liang Gao +2 位作者 Jun Pan Ping Qian Qing-Chuan He 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2018年第1期19-33,共15页
Accelerated life test(ALT) is currently the main method of assessing product reliability rapidly, and the design of efficient test plans is a critical step to ensure that ALTs can assess the product reliability accura... Accelerated life test(ALT) is currently the main method of assessing product reliability rapidly, and the design of efficient test plans is a critical step to ensure that ALTs can assess the product reliability accurately, quickly, and economically. With the promotion of the national strategy of civil-military integration, ALT will be widely used in the research and development(R&D) of various types of products, and the ALT plan design theory will face further challenges. To aid engineers in selecting appropriate theories and to stimulate researchers to develop the theories required in engineering, with focus on the demands for theory research that arise from the implementation of ALT, this paper reviews and summarizes the development of ALT plan design theory. The development of the theory and method for planning optimal ALT for location-scale distribution, which is the most applied and mature theory of designing the optimal ALT plan, are described in detail. Taking this as the center of radiation, some problems that ALT now faces, such as the verification of the statistical model, limitation of sample size, solutions of resource limits, optimization of the test arrangement, and management of product complexity, are discussed, and the general ideas and methods of solving these problems are analyzed. Suggestions for selecting appropriate ALT plan design theories are proposed, and the urgent solved theory problems and opinions of their solutions are proposed. Based on the principle of convenience for engineers to select appropriate methods according to the problems found in practice, this paper reviews the development of optimal ALT plan design theory by taking the engineering problems arising from the ALT implementation as the main thread, provides guidelines on selecting appropriate theories for engineers, and proposes opinions about the urgent solved theory problems for researchers. 展开更多
关键词 Accelerated life test Test plan Optimal design Reliability assessment
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基于nCode Design-Life的重型起重设备疲劳寿命预测研究 被引量:7
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作者 李现春 胡晓兵 +1 位作者 李毅 徐营利 《机械》 2017年第8期1-6,共6页
为研究重型起重设备的疲劳损伤和寿命,以门式起重机为算例建立有限元模型,通过有限元静力学分析,最大等效应力位于跨中受拉区,得出门式起重机强度和刚度满足要求。采用nCode Design-Life疲劳仿真软件利用S-N疲劳设计方法对有限元静力学... 为研究重型起重设备的疲劳损伤和寿命,以门式起重机为算例建立有限元模型,通过有限元静力学分析,最大等效应力位于跨中受拉区,得出门式起重机强度和刚度满足要求。采用nCode Design-Life疲劳仿真软件利用S-N疲劳设计方法对有限元静力学特性和疲劳损伤进行分析,得到门式起重机疲劳寿命分布云图和疲劳损伤云图,其最小寿命满足工程要求。为了研究载荷变化对起重机寿命的影响,通过改变载荷缩放因子来改变时间载荷序列的大小,对比分析载荷变化后的寿命情况,得出随机载荷减小门式起重机寿命大大增加,过载对门式起重机的疲劳寿命有显著的影响。 展开更多
关键词 门式起重机 疲劳寿命 时间载荷序列 S-N曲线 nCodedesign-life
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PRODUCT DATA PREDICTION WITH UNCERTAINTY IN PRODUCT LIFE CYCLE DESIGN
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作者 YuSuiran WangChengtao KimuraFumihiko 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2003年第3期296-299,共4页
Various kinds of data are used in new product design and more accurate datamake the design results more reliable. Even though part of product data can be available directlyfrom the existing similar products, there sti... Various kinds of data are used in new product design and more accurate datamake the design results more reliable. Even though part of product data can be available directlyfrom the existing similar products, there still leaves a great deal of data unavailable. This makesdata prediction a valuable work. A method that can predict data of product under development basedon the existing similar products is proposed. Fuzzy theory is used to deal with the uncertainties indata prediction process. The proposed method can be used in life cycle design, life cycleassessment (LCA) etc. Case study on current refrigerator is used as a demonstration example. 展开更多
关键词 Data prediction UNCERTAINTY life cycle design
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Reflection on Full Life Cycle Green Architectural Design of Passive Priority——Taking the Award Design of China Merchants Property 2013 Green Architectural Design Competition as an Example
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作者 Zhen-He Fan Yan Qiao 《Journal of Harbin Institute of Technology(New Series)》 EI CAS 2014年第4期47-54,共8页
In the China merchants property 2013 green architectural design competition,feature of this awardwinning program is the design method based on the principles of passive priority and comprehensive utilization of full l... In the China merchants property 2013 green architectural design competition,feature of this awardwinning program is the design method based on the principles of passive priority and comprehensive utilization of full life cycle. The passive priority can be achieved by building form derived from the simulation and analysis of wind environment,improvement of the building envelope insulation and the dehumidification of fresh air,the use of solar energy. The full life cycle utilization can be accomplished by the combination of exhibition and residents' leisure activities, and the integration with local cultural tradition, thereby improving energy efficiency and the utilization of the building. 展开更多
关键词 full life cycle passive priority green architectural design
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基于nCode design-life的某钢结构吊车梁疲劳可靠性 被引量:2
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作者 巩玉发 贾凡 《辽宁工程技术大学学报(自然科学版)》 CAS 北大核心 2018年第2期371-375,共5页
近年来对吊车梁的调查显示,由于吊车梁的受力复杂,钢吊车梁在往复载荷作用下会提前出现不同程度的疲劳裂缝,危害生产安全与降低经济效益,疲劳寿命的研究可以有效的预防和减小破坏等问题的概率并可对于寿命进行延长.本文采用S-N方法,运用... 近年来对吊车梁的调查显示,由于吊车梁的受力复杂,钢吊车梁在往复载荷作用下会提前出现不同程度的疲劳裂缝,危害生产安全与降低经济效益,疲劳寿命的研究可以有效的预防和减小破坏等问题的概率并可对于寿命进行延长.本文采用S-N方法,运用ANSYS有限元软件与nCode Design-life疲劳软件相结合的方式,通过对目标吊车梁的实际受力状态进行模拟并对其进行疲劳可靠性分析,找出最易破坏的节点及最不利位置.取吊车梁一端为基准,设置电葫芦在吊车三个不同位置的工况进行分析,得出三组此破坏点的循环数据,其最小循环值则为吊车梁往复载荷后的最易损坏处. 展开更多
关键词 钢吊车梁 疲劳寿命 疲劳可靠性 循环数据 nCode design-life S-N方法
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Empirical Approach for Planning and Designing Constant Stress Accelerated Life Tests
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作者 蒋仁言 龙旭 《Journal of Donghua University(English Edition)》 EI CAS 2015年第6期1025-1028,共4页
Accelerated life testing(ALT)has been widely used to obtain information about the product's life characteristics at normal conditions in a relatively short period of time.Two key issues with ALT are test design an... Accelerated life testing(ALT)has been widely used to obtain information about the product's life characteristics at normal conditions in a relatively short period of time.Two key issues with ALT are test design and data analysis.The test design of constant stress ALT was studied in this paper.The test design usually combines engineering experiences with optimization models.Such approaches are hard to be implemented by practitioners.A"pure"empirical approach was presented to address this issue.With the proposed approach,some of the decision variables are determined based on the results from the literature,some of the other variables are determined based on engineering analysis and /or judgment,and the remaining variables are determined based on the empirical relations developed in this paper.A real-world example is included to illustrate the appropriateness of the proposed approach. 展开更多
关键词 accelerated life testing(ALT)design constant stress stress levels test units allocation censoring type
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Landscape Design Mode Based on the Integration of Ecology, Production and Life
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作者 SHI Chengyong ZHANG Pei TANG Ying 《Journal of Landscape Research》 2016年第5期57-61,共5页
Taking landscape design of Suburban Park in Yulin City for example, this paper applied the design thoughts of integrating multiple planning, defining concepts and objectives, specified the design strategies of restori... Taking landscape design of Suburban Park in Yulin City for example, this paper applied the design thoughts of integrating multiple planning, defining concepts and objectives, specified the design strategies of restoring ecology, improving life and promoting production, and disclosed the landscape design mode based on the integration of ecology, production and life in which ecological landscapes, productive landscapes and living landscapes promote and coexist harmoniously with each other. 展开更多
关键词 Integration of ecology production and life Landscape design Landscape mode
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Improvement of the Life Cycle Costing Method in DesignStage Using KBIMS Library
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作者 Chun-Kyong Lee 《Journal of Civil Engineering and Architecture》 2019年第12期780-792,共13页
With the advent of the fourth industrial revolution,the construction industry has undergone a paradigm shift.The smart construction technology market is expected to grow 12%annually in developed countries due to advan... With the advent of the fourth industrial revolution,the construction industry has undergone a paradigm shift.The smart construction technology market is expected to grow 12%annually in developed countries due to advanced technology investments.It is expected that businesses requiring highly sophisticated technology,for instance companies that need their old facilities upgraded,will become the main focus of the market.As building information modeling(BIM)design is becoming mandatory,such as in the Korea Public Procurement Service,researches regarding building automation,construction,and operation integration management systems based on BIM are conducted.In addition,for construction projects of over 10 billion won,design value engineering(Design VE)implementation,including life cycle cost(LCC)analysis,is mandatory at the design stage to improve quality and reduce the lifetime costs of buildings.In this study,we propose an improvement plan for LCC analysis at the design stage using the KBIMS library,which is an open BIM library developed by the Korean government and research groups.We analyze the existing LCC method,KBIMS library,and attribute information,and model the process that is applied in the LCC analysis system.This is expected to complement the LCC analysis system and improve work productivity. 展开更多
关键词 life cycle costing building information modeling design value engineering automation design automation analysis.
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Reliability-Based Full-Life Cycle Optimum Design of Offshore Jacket Platform 被引量:1
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作者 王立成 宋玉普 《海洋工程:英文版》 2004年第1期47-58,共12页
Based on the consideration of operation environment and structural property, an optimum design model of offshore jacket platform is developed in this paper, namely, the reliability-based full-life cycle optimum design... Based on the consideration of operation environment and structural property, an optimum design model of offshore jacket platform is developed in this paper, namely, the reliability-based full-life cycle optimum design model. In this model, the time-dependent reliability assessment method for structural members is established by combination of the decrease of sectional size and performance deterioration of material. The initial investment, maintenance cost and failure loss cost are assembled into the model. The total cost of the platform structure system in its full service period is chosen as the objective function, and the initial reliabilities of the layer elements partitioned in advance are taken as the design variables. Different models are obtained, depending on whether the system reliability constraint is considered or not. This optimum design model can result in the lowest full-life cost and the optimal initial layer reliability of an offshore jacket platform in the design of marine structures. The feasibility of this model is illustrated with an actual jacket platform in the Liaodong Gulf as an example. 展开更多
关键词 offshore jacket platform full-life cycle optimum design model maintenance cost failure loss cost RELIABILITY
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Multi-Objective Optimization of the Ultrasonic Scalpel Rod and Tip with Improved Performance:Vibration Frequency,Amplitude,and Service Life
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作者 Jiaqi Zhao Yuhao Zhai +6 位作者 Xuzhe Jia Naiwen Deng Kunxu Li Guangchao Han Rong Chen Dong Wang Wei Bai 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2024年第4期107-119,共13页
Ultrasonic scalpel design for minimally invasive surgical procedures is mainly focused on optimizing cutting performance.However,an important issue is the low fatigue life of traditional ultrasonic scalpels,which affe... Ultrasonic scalpel design for minimally invasive surgical procedures is mainly focused on optimizing cutting performance.However,an important issue is the low fatigue life of traditional ultrasonic scalpels,which affects their long-term reliability and effectiveness and creates hidden dangers for surgery.In this study,a multi-objective optimal design for the cutting performance and fatigue life of ultrasonic scalpels was proposed using finite element analysis and fatigue simulation.The optimal design parameters of resonance frequency and amplitude were determined.By setting the transition fillet and keeping the gain structure away from the node position to enable the scalpel to have a high service life with excellent cutting performance.The frequency modulation method of setting the vibration node bosses at the node position and setting the vibration antinode grooves at the antinode position was compared.Then,the mechanism of the influence of various design elements,such as tip,shank,node position,and antinode position,on the resonance frequency,amplitude,and fatigue life of the ultrasonic scalpel was analyzed,and the optimal design principles of the ultrasonic scalpel were obtained.The proposed ultrasonic scalpel design was confirmed by simulations,impedance measurements,and liver tissue cutting experiments,demonstrating its feasibility and enhanced performance.This research introduces innovative design strategies to improve the fatigue life and performance of ultrasonic scalpels to address an important issue in minimally invasive surgery. 展开更多
关键词 Multi-objective optimal design Minimally invasive surgical procedures Service life Ultrasonic scalpel
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Research on the Integration of Structural Design and Material Parameters of Long-life Asphalt Pavement
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作者 Yongjun Shen 《Journal of World Architecture》 2022年第3期63-69,共7页
In order to reduce the disease risk stemming from asphalt concrete pavement and ensure the safety of road operation,we should pay attention to the structural design of long-life asphalt pavement,strengthen the selecti... In order to reduce the disease risk stemming from asphalt concrete pavement and ensure the safety of road operation,we should pay attention to the structural design of long-life asphalt pavement,strengthen the selection of long-term pavement materials,scientifically set the pavement mechanical performance indexes based on the calculation results of pavement structure thickness combination and modulus combination,and ensure the stability and durability of road pavement structure through the real-time establishment of three-dimensional finite element calculation model,as well as the integrated design that takes into consideration the aspects of road subgrade,semi-rigid base and asphalt layer. 展开更多
关键词 Long life asphalt pavement Modulus combination Thickness combination Structural design
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Crystalline and amorphous metal sulfide composite electrode materials with long cycle life:Preparation and performance of hybrid capacitors
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作者 DING Ning WANG Siyu +4 位作者 YU Shihua XU Pengcheng HAN Dandan SHI Dexin ZHANG Chao 《无机化学学报》 SCIE CAS CSCD 北大核心 2024年第9期1784-1794,共11页
Crystalline@amorphous NiCo_(2)S_(4)@MoS_(2)(v-NCS@MS)nanostructures were designed and constructed via an ethylene glycol-induced strategy with hydrothermal synthesis and solvothermal method,which simultaneously realiz... Crystalline@amorphous NiCo_(2)S_(4)@MoS_(2)(v-NCS@MS)nanostructures were designed and constructed via an ethylene glycol-induced strategy with hydrothermal synthesis and solvothermal method,which simultaneously realized the defect regulation of crystal NiCo_(2)S_(4) in the core.Taking advantage of the flexible protection of an amor-phous shell and the high capacity of a conductive core with defects,the v-NCS@MS electrode exhibited high specif-ic capacity(1034 mAh·g^(-1) at 1 A·g^(-1))and outstanding rate capability.Moreover,a hybrid supercapacitor was assembled with v-NCS@MS as cathode and activated carbon(AC)as anode,which can achieve remarkably high specific energy of 111 Wh·kg^(-1) at a specific power of 219 W·kg^(-1) and outstanding capacity retention of 80.5%after 15000 cycling at different current densities. 展开更多
关键词 crystalline@amorphous heterostructure NiCo2S4@MoS2 hybrid supercapacitor defect design long cycle life
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Durability zonation standard of concrete structure design 被引量:5
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作者 金伟良 吕清芳 《Journal of Southeast University(English Edition)》 EI CAS 2007年第1期98-104,共7页
Durability zonation standard (DZS) is proposed to provide useful parameters for durable concrete structure design. It deals not only with the influence of environment on structures, but also with types, functions an... Durability zonation standard (DZS) is proposed to provide useful parameters for durable concrete structure design. It deals not only with the influence of environment on structures, but also with types, functions and importance of structures based on the theory of life cycle cost(LCC). First, the basic concept of DZS for concrete structure design is defined. Then the basic principles for DZS are established. The factors for zonation according to natural environmental conditions and structural importance are identified. The usefulness of DZS by citing a real application for concrete highway bridges in Zhejiang Province is demonstrated. Finally, durability regulations are provided accordingly to zonation. 展开更多
关键词 durability zonation standard concrete structure design zonation map life cycle cost
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Low-carbon Living Environment Design 被引量:4
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作者 韦宇航 《Journal of Landscape Research》 2012年第1期49-51,共3页
Based on the review of the influence of human activity on global environment,and recognition of current climate warming,it is considered that human activity is the primary reason and climate change has caused serious ... Based on the review of the influence of human activity on global environment,and recognition of current climate warming,it is considered that human activity is the primary reason and climate change has caused serious global environmental problems and threatened human's survival and development.After the introduction of low carbon and conclusion of the main contents and development of researches,it has emphasized that low-carbon urban living mode is an important component of low-carbon urban planning.In view of the situation of China,the main content of low-carbon urban living mode has been illustrated from the perspective of low-carbon life behavior,low-carbon life consumption and carbon budget life mode.On this basis,the purpose and significance of low-carbon living environment design,design principles and requirements,low-carbon life measures have been analyzed. 展开更多
关键词 Low-carbon life LIVING environment design "People orientation" CARBON EMISSION
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Optimal Design of TMD Under Long-Term Nonstationary Wave Loading 被引量:6
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作者 李华军 蒋济同 +2 位作者 曹宏生 稽春艳 Tomotsuka TAKAYAMA 《China Ocean Engineering》 SCIE EI 2000年第1期25-32,共8页
Traditionally, the use of a tuned mass damper (TMD) is to improve the surviability of the primary structure under extraordinary loading environment while the design loading condition is described by either a harmonic ... Traditionally, the use of a tuned mass damper (TMD) is to improve the surviability of the primary structure under extraordinary loading environment while the design loading condition is described by either a harmonic function or a stationary random process that can be fully characterized by a power spectral density (PSD) function. Aiming at prolonging the fatigue life of an offshore platform, this study considers an optimal design of TMD for the platform under long-term nonstationary loading due to long-term random sea waves characterized by a probabilistic power spectral density (PPSD) function In principle, a PPSD could be derived based on numerous ordinary PSD functions; and each of them is treated as realization of the corresponding PPSD. This study provides a theoretical development for the optimal TMD design by minimizing the cost function to be the mean square value of the expected long term response. A numerical example is presented to illustrate the developed design procedure. 展开更多
关键词 optimal design tuned mass damper power spectral density fatigue life offshore platform
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