共查询到20条相似文献，搜索用时 359 毫秒
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三维软件界面中的模型是“活”的,可以根据学生的理解情况任意翻转、缩放、隐藏或透明,所以三维软件辅助机械类专业的课堂教学,比一般的多媒体教学更直观,更容易化解教学难点,提高教学质量。 相似文献
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曾令慧 《新课程学习(社会综合)》2011,(2)
三维CAD是数字化设计、制造和管理的基础,是现代产品创新的基本工具.对三维CAD技术及设计软件CATIA做简要介绍,阐述加强三维CAD教学与创新型人才培养的重要意义. 相似文献
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服装构成的依据不是某件衣服的裁剪数据和公式,而是人体.一件成衣要做到线条流畅、符合人体造型并且具有视觉美感效果,实现人、服装之间的最佳匹配,才能做到符合人体.服装先“以人为本”,再进行服装款式的变化,这一点充分表象在服装结构设计中的各个细节.在进行结构设计、加工缝制时都要考虑穿着过程中对人体适应性的需求,这些要求都体现了适应人的功能性的重要性,强调了要以人体为主体的前提下再去考虑其他因素,比如设计、版型、面料等. 相似文献
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Giuseppe Carlo Marano 《浙江大学学报(A卷英文版)》2008,9(1):15-25
Based on a multiobjective approach whose objective function （OF） vector collects stochastic reliability performance and structural cost indices, a structural optimization criterion for mechanical systems subject to random vibrations is presented for supporting engineer＇s design. This criterion differs from the most commonly used conventional optimum design criterion for random vibrating structure, which is based on minimizing displacement or acceleration variance of main structure responses, without considering explicitly required performances against failure. The proposed criterion can properly take into account the design-reliability required performances, and it becomes a more efficient support for structural engineering decision making. The multiobjective optimum （MOO） design of a tuned mass damper （TMD） has been developed in a typical seismic design problem, to control structural vibration induced on a multi-storey building structure excited by nonstationary base acceleration random process A numerical example for a three-storey building is developed and a sensitivity analysis is carried out. The results are shown in a useful manner for TMD design decision support. 相似文献
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在现代女装设计中,设计理念、结构设计、面料作为女装设计重要的组成部分,它们的创新和发展对女装设计起着决定性的作用。通过对现代女装设计中设计理念、结构线、立体结构、面料等设计要素的创新手法的论述,为其发展和创新提供新的艺术手法和设计思路。 相似文献
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从建筑室内空间应满足人们使用功能和精神功能的要求,符合审美及技术经济等原则的角度考察室内设计,分析设计的本质与目标,针对人居环境应符合“安全、健康、舒适、美观”的原则和“绿色建筑”的设计理念,符合建筑结构技术与建筑材料的发展趋势,提出建立室内空间设计评价体系的基本原则,对引导室内空间设计具有一定的参考价值。 相似文献
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M. MAHENDRAN 《European Journal of Engineering Education》1996,21(1):75-84
Engineering students are best able to understand theory when one explains it in relation to realistic problems and its practical applications. Teaching theory in isolation has led to lower levels of comprehension and motivation and a correspondingly higher rate of failure. At Queensland University of Technology, a number of new methods have been introduced recently to improve the teaching and learning of steel structural design at undergraduate level. In the basic steel structures subject a project-based teaching method was introduced in which the students were required to analyze, design and build the lightest/most efficient steel columns for a given target capacity. A design assignment involving simple, but real structures was also introduced in the basic steel structures subject. Both these exercises simulated realistic engineering problems from the early years of the course and produced a range of benefits. Improvements to the teaching and learning were also made through integration of a number of related structural engineering subjects and by the introduction of animated computer models and laboratory models. This paper presents the details of all these innovative methods which improved greatly the students’ understanding of the steel structures design process. 相似文献
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浅析钢筋混凝土框架结构设计 总被引：3，自引：0，他引：3
张月静 《邢台职业技术学院学报》2010,27(5):100-101
建筑结构设计是建设工程设计的重要环节,是保障建筑结构安全、实现建筑使用功能的灵魂。在我国现在的多高层建筑中,钢筋混凝土结构应用最普遍,其中钢筋混凝土框架结构是最常用的结构形式。为了使结构设计更加完善,本文依据GB 50010-2002混凝土结构设计规范和GB 50011-2001（2008年版）建筑抗震设计规范,针对框架结构设计中容易疏忽的几个问题进行了初步探讨,可供设计人员参考。 相似文献
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Structural bionic design lacks mature and scientific theories, and the excellent structural characteristics of natural organisms sometimes cannot be transferred into engineering structures effectively. Aiming at overcoming the existing problems, this paper summarizes three related theories: similarity theory, fuzzy evaluation theory and optimization theory. Based on the related theories, a method of structural bionic design is introduced, which includes four steps: selecting the most useful structural characteristic of natural organism; analyzing the structural characteristic finally chosen for engineering problem; completing the structural bionic design for engineering structure; and verifying the structural bionic design. Similarity theory and fuzzy evaluation theory are employed to achieve Step 1. In Step 2 and Step 3, optimization theory is employed to analyze the parameters of structures. Together with the thoughts of simplification and grouping, optimization theory can reveal the relationship between organism structure and engineering structure, providing a way to structural bionic design. A general evaluation criterion is proposed in Step 4, which is feasible to evaluate the performance of different structures. Finally, based on the method, a structural bionic design of thin-walled cylindrical shell is introduced. 相似文献
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Deric John Oehlers 《European Journal of Engineering Education》2006,31(4):487-495
Seven years of industrial experience followed by 30 years of academic research and teaching in structural engineering have led the author to believe that the prime objective of a university design course is not the design project itself but to train students to solve problems, as this will last them throughout their careers. It is shown how design projects can be formulated for the purpose of encouraging students to develop their problem-solving abilities. More importantly, a sequential assessment technique has been developed to quantify the students’ ability to both think and learn as well as the students’ grasp of the fundamental principles, all of which are required in problem-solving. 相似文献
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罗平 《广东职业技术师范学院学报》2014,(11):53-56
提出了一种新型结构的直线超声电机,对其驱动原理进行了简要分析;利用有限元软件ANSYS对复合振子进行模态分析和谐波响应分析,计算出复合振子结构尺寸改变对其一阶纵向伸缩和二阶弯曲振动模态频率的影响,得出了两模态频率对结构参数的相对灵敏度;有限元分析结果为复合振子的结构优化设计和电机输出性能的预估提供了有益的参考,据此设计出符合模态简并的复合振子结构及电机的总体结构. 相似文献
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吕庆洲 《淮南职业技术学院学报》2006,6(1):59-63
为了更加精确、快速地设计曲柄摇杆机构,利用借助辅助圆设计曲柄摇杆机构的原理,通过对曲柄摇杆机构各杆件长度以及运动时所处的几个特殊的几何位置关系进行了数学计算和分析,得到了具有急回特性的曲柄摇杆机构获得最佳传动角的条件和一组设计计算公式;根据所给的具体条件,选择不同的计算公式,采用直接计算法或计算机辅助设计法,确定具有最佳传动角和急回特性的曲柄摇杆机构的机构布置以及各杆件的结构尺寸。 相似文献