The Model of“Post,Course,Competition,Certificate”Integrated Education for Electronic Information Engineering Technology Major in Higher Vocational Colleges

The core education function of higher vocational colleges is to train technical talents with high quality,so as to meet the needs of talents in the development stage of our society.Under the guidance of talent training,higher vocational colleges need to pay attention to establishing an all-round and three-dimensional education model,and promote innovation of higher vocational education on the basis of this.It is also a way to promote the innovation of higher vocational education to vigorously promote the construction of“post,course,competition,certificate”mode in the construction of education mode.Through the construction of“post,course,competition,certificate”mode,the education mode of higher vocational colleges is gradually improved,so as to strengthen the effectiveness of talent training in higher vocational colleges.Therefore,in this paper,the author puts forward some suggestions to promote the construction of the integrated education mode of the electronic information engineering technology major in higher vocational colleges,so as to help improve the talent training level of higher vocational colleges.

Concurrent Engineering oriented Integrated Product Model Based on STEP

In this paper, the generalized feature concept is put forward according to concurrent engineering. An integrated product model is established based on the generalized feature according to STEP in order to provide enrichment information for product concurrent development process. The integration of the information and function of CAD/CAPP can be realized based on the integrated product model that supports concurrent engineering. IPM has been used successfully in product concurrent development.

Feature Based Machining Process Planning Modeling and Integration for Life Cycle Engineering

Machining process data is the core of computer aided process planning application systems.It is also provides essen- tial content for product life cycle engineering.The character of CAPP that supports product LCE and virtual manufacturing is an- alyzed.The structure and content of machining process data concerning green manufacturing is also examined.A logic model of Machining Process Data has been built based on an object oriented approach,using UML technology and a physical model of machin- ing process data that utilizes XML technology.To realize the integration of design and process,an approach based on graph-based volume decomposition was apposed.Instead,to solve the problem of generation in the machining process,case-based reasoning and rule-based reasoning have been applied synthetically.Finally,the integration framework and interface that deal with the CAPP integration with CAD,CAM,PDM,and ERP are discussed.

Research on the General and Professional Integrated Education at Universities under the Background of Engineering Education Accred­itation

Under the background of“Engineering Education Accreditation”,it is of great significance to carry out the general and professional integrated education at universities.This paper discusses the epoch connotation of general education at universities and the necessity of developing general education in the professional courses of the universities.The conceptual characteristics,practice modes and ways of carrying out the general and professional integrated education at universities under the background of Engineering Education Accreditation are discussed.Finally,an example is given to verify the feasibility and implementation effect of carrying out general education in professional courses of university,so as to provide references for the development of the general and professional integrated education at universities in the new era.

A NEW ENGINEERING CALCULATING MODEL FOR A LINEAR INCLUSION AND ITS APPLICATIONS

By using the hypothesis of the deformation of the straight bar and beam in mechanics of materials,a new engineering calculating model for a linear inclusion in plane is presented.Through the Kelvin's solution of a concentrated force,the inclusion problem is reduced to solving a set of uncoupled singular integral equations which can be solved by the numerical method of singular integral equation.Based on these results,several applicable examples including an inclusion-crack problem are calculated and the results are quite satisfactory.

Integrating Virtual Reality and Energy Analysis with BIM to Optimize Window-to-Wall Ratio and Building’s Orientation for Age-in-Place Design at the Conceptual Stage

This study unfolds an innovative approach aiming to address the critical role of building design in global energy consumption, focusing on optimizing the Window-to-Wall Ratio (WWR), since buildings account for approximately 30% of total energy consumed worldwide. The greatest contributors to energy expenditure in buildings are internal artificial lighting and heating and cooling systems. The WWR, determined by the proportion of the building’s glazed area to its wall area, is a significant factor influencing energy efficiency and minimizing energy load. This study introduces the development of a semi-automated computer model designed to offer a real-time, interactive simulation environment, fostering improving communication and engagement between designers and owners. The said model serves to optimize both the WWR and building orientation to align with occupants’ needs and expectations, subsequently reducing annual energy consumption and enhancing the overall building energy performance. The integrated model incorporates Building Information Modeling (BIM), Virtual Reality (VR), and Energy Analysis tools deployed at the conceptual design stage, allowing for the amalgamation of owners’ inputs in the design process and facilitating the creation of more realistic and effective design strategies.

INTEGRATED ANALYSIS APPROACHES TO ROCK MECHANICS PROBLEMS

In order to effectively cope with exponent increase of the complexity faced to the rock mechanics analysis problems and the large incompatibility existing between the information level required to model the rock mass and engineering and our obtainable information level at hand,the integrated approaches with intelligent characters are proposed. Many previous standard methods,such as precedent type analysis,rock classification,analytic method stress-based,basic numerical methods (BEM,FEM,DEM,hybrid),and their extended numerical methods (fully coupled) to be developed,can be selected respectively or integrated accordingly. It is alternative to develop basic/fully integrated system,and internet-based approaches. These novel methods can also be selected or integrated each other or with the standard methods to perform rock mechanics analysis. Some key techniques to develop these alternative methods are discussed. It may focus in future on developing fully integrated systems and internet-based approaches. Developing an environmental,virtual facility/space shall be firstly done for this collaborative research on internet.

A New Hybrid Control Scheme for an Integrated Helicopter and Engine System

A new hybrid control scheme is presented with a robust multiple model fusion control（RMMFC） law for a UH-60 helicopter and an active disturbance rejection control（ADRC） controller for its engines.This scheme is a control design method with every subsystem designed separately but fully considering the couplings between them.With three subspaces with respect to forward flight velocity,a RMMFC is proposed to devise a four-loop reference signal tracing control for the helicopter,which escapes the closed-loop system from unstable state due to the extreme complexity of this integrated nonlinear system.The engines are controlled by the proposed ADRC decoupling controller,which fully takes advantage of a good compensation ability for unmodeled dynamics and extra disturbances,so as to compensate torque disturbance in power turbine speed loop.By simulating a forward acceleration flight task,the RMMFC for the helicopter is validated.It is apparent that the integrated helicopter and engine system（IHES） has much better dynamic performance under the new control scheme.Especially in the switching process,the large transient is significantly weakened,and smooth transition among candidate controllers is achieved.Over the entire simulation task,the droop of power turbine speed with the proposed ADRC controller is significantly slighter than with the conventional PID controller,and the response time of the former is much faster than the latter.By simulating a rapid climb and descent flight task,the results also show the feasibility for the application of the proposed multiple model fusion control.Although there is aggressive power demand in this maneuver,the droop of power turbine speed with an ADRC controller is smaller than using a PID controller.The control performance for helicopter and engine is enhanced by adopting this hybrid control scheme,and simulation results in other envelope state give proofs of robustness for this new scheme.

Benefit measurement of the soil and water conservation for ecological forestry engineering

Data were collected from Three-north Region, Middle and upper reaches region of Yangtze River and Coastal region. By analysis of factors influencing soil erosion, the longitude, latitude, annual precipitation, and the slope degree were selected as regional independent variables and canopy density and stock litter were selected as independent variables, and integral diffusing models were established for evaluation of the benefit of soil and water conservation of forest. By solving the parameters of models using the package of STATISTICA, the Power function between independent variables and dependent variables was set up. The soil conservation amount of forest and economic values were estimated using the contrast method for the ecological forestry engineering of the above three areas.

3D integrated modeling approach to geo-engineering objects of hydraulic and hydroelectric projects

Aiming at 3D modeling and analyzing problems of hydraulic and hydroelectric en-gineering geology,a complete scheme of solution is presented. The first basis was NURBS-TIN-BRep hybrid data structure. Then,according to the classified thought of the object-oriented technique,the different 3D models of geological and engi-neering objects were realized based on the data structure,including terrain class,strata class,fault class,and limit class;and the modeling mechanism was alterna-tive. Finally,the 3D integrated model was established by Boolean operations be-tween 3D geological objects and engineering objects. On the basis of the 3D model,a series of applied analysis techniques of hydraulic and hydroelectric engineering geology were illustrated. They include the visual modeling of rock-mass quality classification,the arbitrary slicing analysis of the 3D model,the geological analysis of the dam,and underground engineering. They provide powerful theoretical prin-ciples and technical measures for analyzing the geological problems encountered in hydraulic and hydroelectric engineering under complex geological conditions.

面向国家重大工程人才需求的五维融合教学模式探索与实践

随着科技创新与产业变革,航空企业对国家重大工程高素质复合型人才的需求与日俱增。高校与企业携手促进产学研多维深度有机融合,有利于实现企业端人才需求与教育端人才培养的高效衔接,为行业的高质量发展提供强有力的人才支撑。研究指出,现有的高校人才培养模式仍以高校为主,企业参与度及融合深度不够,难以形成持续有效的教学育人模式。因此,该文从培养目标建设(专业理论知识与工程认知相融合)、课程体系建设(专业必修课和企业课程相融合)、教材体系建设(理论体系教材和工程案例教材相融合)、教学资源建设(线上线下开放教学模式相融合)和教师队伍建设(高校教师与行业总师相融合)五个维度来实现面向国家重大工程复合型人才需求的校企协同深度融合教学模式探索与实践。

中国石化油藏地球物理二十年发展与思考

油藏地球物理技术是综合应用多种地球物理资料与油藏动静态信息进行复杂油藏精细表征和动态监测的跨学科技术,对于提高油藏的储量动用程度和提高采收率具有重要的意义,是当前地球物理技术的重要发展方向。系统回顾了中国石化油藏地球物理提出的背景和过去二十年的发展历程,梳理了油藏地球物理技术系列,总结了在油藏地球物理基础研究、井中地球物理技术、多尺度资料联合反演、地球物理约束确定性建模、时移地震剩余油气预测、地震地质工程一体化、微地震油藏监测等方面的技术创新和应用效果。面对中国油气田勘探开发的深层、深水、非常规及老油田(“两深一非一老”)形势和一体化、智能化、绿色化挑战,油藏地球物理在油气产业技术致胜阶段仍然大有可为,要持续创新油藏地球物理技术,井、震、动、模一体化联合和人工智能应用,构建高水平的油藏地球物理勘探开发一体化、地质工程一体化解决方案,支撑油藏全生命周期建设。

创新创业教育融入涉农高校机械设计制造及其自动化人才培养模式研究

为适应新技术、新业态、新模式、新产业的需求,创新创业教育融入高校人才培养体系提出更高要求。该研究结合黑龙江八一农垦大学发展现状,将创新创业教育和机械工程教育相结合,围绕毕业达成度,完善人才培养方案,通过强化树人强基培养,通融并举,突出创新训练实践教学体系,实现工农结合,全方位、个性化、多元培养路径,实现时空融合、知行耦合、师生多维互动新范式,全面提升地方高等农业院校人才的专业技能和社会适应能力,满足区域应用型人才需求。

煤矿安全事故的综合致因模型

为了系统研究导致煤矿安全事故的人机环因素,结合煤矿实际,将设备因素、环境因素与人因分析和分类系统(Human Factors Analysis and Classification System,HFACS)相结合,构建了煤矿安全事故的“弓弦箭”致因模型。其中,弓弦由设备因素11项、人因因素17项和环境因素11项的致因因素构成,箭表示发生不同人员伤亡数量、不同经济损失的安全事故,利用该模型可以综合描述煤矿安全事故发生的原因以及事故的后果。以“弓弦箭”致因模型为基础,借助蚁群聚类及Ucinet-netdraw方法,分别对100起典型煤矿安全事故进行分析研究。结果显示:(1)在统计的100起事故中,致因因素总频数为803,其中人因因素最高为644,占比80.2%,设备因素次之为92,占比11.5%,环境因素最少为67,占比8.3%;(2)以聚类数为4,最大迭代次数为1000,蚂蚁个数为100,阈值为0.9,蒸发率为0.1进行蚁群聚类分析,得到4类煤矿安全事故致因因素,表明煤矿安全事故是由设备因素、环境因素和人因因素交织作用产生,其中人因因素是最重要的致因因素,且操作者的不安全行为技能差错、决策差错、知觉差错和违反规章制度表现出一定的独立性;(3)Ucinet-netdraw分析显示煤矿安全事故的关键致因路径为:“管理过程漏洞”→“监督不充分”→“个人准备状态”→“违反规章制度”。

新工科实验班专创与思政教育深度融合模式探索

新时期高等学校专业教育与创新创业教育有机结合厚植积极进取的高校创新创业文化,创设灵活多样的创新创业教学体系,构建较为完备的创新创业保障体制,亟需与思政教育深度融合,实现立德树人的根本任务。该文从互补性、聚合性和延展性视角构建专创融合与思政教育的内在逻辑,详细阐明“双碳”背景下新工科实验班“课程+平台+项目+团队”的专创与思政教育深度融合典型模式及案例。

基于产教融合的光伏现场工程师培养模式实践

在明确光伏现场工程师主要工程技术岗位能力需求的基础上,依托基础实验专业实训中心、创新工程训练坊、产学研联合实践基地三个平台,坚持理论与实验、工程与实训、项目与实际、专业与实践四个结合,实践探索专业技术应用、现场知识整合、工程实践双创、协调管理与沟通合作五种能力协同提升的光伏现场工程师人才培养模式,取得预期成效,可为职业教育产教融合培养新能源产业现场工程师人才提供一种思路。

新工科背景下软件工程专业实践能力提升改革与实践

针对当前省域本科高校软件工程人才培养与产业发展需求衔接程度不够,学生工程实践能力弱,应用创新型人才培养体系需进一步完善等问题,以行业需求为导向,以提升工程实践能力为核心,校企协同与共享为主要途径,探索建立新形势下软件工程专业应用创新型人才培养的新模式。经过四年多的探索与实践,形成一套行之有效的应用创新型人才培养体系,可有效提升学生的实践能力。实践表明,人才培养质量显著提升,推广应用效果显著。

横向贯通式中低速磁浮一体轨道梁钢-混结合部试验研究

为解决中低速磁浮分离式轨道梁存在的养护难、构件多,以及无法考虑F轨刚度贡献等问题,提出一种横向贯通式梁轨一体轨道梁结构,针对其钢-混结合部的静力性能开展有限元分析和足尺模型试验研究,并对关键设计参数进行参数分析。结果表明,在5倍设计荷载内,钢-混结合部基本处于弹性状态,承载力满足设计要求,且具备较高富裕量;竖向荷载主要通过钢板承压作用传递至混凝土梁体,焊钉对竖向荷载的传递作用较小;设计参数分析表明,适量提高钢连接件钢板厚度有利于竖向荷载的平顺传递。研究结果可以为梁轨一体轨道梁设计提供参考。

Study of helicopter autorotation landing following engine failure based on a six-degree-of-freedom rigid-body dynamic model

This paper focuses on the prediction of the safe autorotation landing operations of a helicopter following engine failure.The autorotation landing procedure is formulated as a nonlinear optimal control problem based on an augmented six-degree-of-freedom rigid-body flight dynamic model.First,the cost function and constraints are properly selected.The direct transcription approach is then employed to solve the optimal control problem.For a UH-60 helicopter,the optimal solutions with the rigid-body model are compared with those obtained using a two-dimensional point-mass model.It is found that the optimal solutions using the two different models show reasonably good agreement,and furthermore the optimal solutions using the rigid-body model involve the time histories of angular rates and attitudes,lateral velocity and position,as well as pitch controls.Finally the optimal control formulations with different cost functions are proposed for taking account of 1-s time delay and minimum touchdown speed.The calculated control strategies and trajectories are realistic.

“双碳”背景下钢铁新产线选址的环境结合度评价——以中国宝武为例

为准确测度“双碳”(即碳达峰、碳中和的合称)背景下具体工业门类选址与环境体系的结合发展实效,通过研究钢铁新产线的选址取向及环境关切转变,提出新产线选址的环境结合度评价框架。通过数据包络分析(Data Envelopment Analysis,DEA)模型计算环境-经济效率,通过动态综合评价模型揭示时间序列上效率的变化特征,以构建一套钢铁新产线选址的环境结合度评价方法,进而对中国宝武钢铁集团部分生产基地开展实证分析。评价结果为上海宝山基地的环境结合度最高。研究表明:环境结合度是“双碳”背景下钢铁新产线向既有基地选址时主要的环境关切,而环境结合度的评价框架和评价方法可有效表征连续时间序列上既有基地与所在城市环境体系的互促共进态势,对大型钢企未来选址新产线具有一定指导作用。