基于可靠性的机构多学科优化设计研究

发布时间：2018-05-29 23:05

本文选题：可靠性分析 + 多学科优化　；参考：《电子科技大学》2011年硕士论文

【摘要】：随着国防现代化的推进,对某些国防设备关键机构同时提出了轻量化和高性能设计要求,因此产品的可靠性问题日益重要。XX机构考虑可靠性的多学科优化的分析研究就是在此背景下提出来的。机构的多学科优化设计研究在西方发达国家已经成熟地应用于航空、航天、武器装备、汽车以及电子通信等高科技行业。对于我国来说在此领域的研究还处于开始阶段,与发达国家的技术差距还很大。本文研究的主要是针对XX机构可靠性的多学科优化设计进行分析,主要内容如下: 首先介绍了可靠性以及多学科优化领域在国内外的发展现状以及相关的理论知识体系,然后将整个论文的框架结构以及内容作了简单的阐述。其次是对XX机构的仿真建模阶段研究。主要采取了试验设计分析,然后实现机构三维实体建模,最后对机构进行动力学仿真分析。试验设计方案采用正交试验法,其选取的数据点具有很强的代表性以及高效性。然后是基于仿真实验数据进行响应面的拟合,得到相关的函数表达式,以便于后期多学科优化的工作的展开。最后是多学科优化的分析研究。根据实际调研以及经验,我们将该机构的设计划分为三个学科:性能学科、重量学科以及可靠性学科,来选取最优解,以满足工程上的设计需要。
[Abstract]:With the development of national defense modernization, some key institutions of national defense equipment have put forward the requirement of lightweight and high performance design at the same time. Therefore, the problem of product reliability is becoming more and more important. The research on multidisciplinary optimization design of institutions has been applied to the high-tech industries such as aviation, aerospace, weapons and equipment, automobile and electronic communication in the western developed countries. For our country, the research in this field is still at the beginning stage, and the technological gap with developed countries is still very big. In this paper, the reliability of XX mechanism of multidisciplinary optimization design analysis, the main content is as follows: This paper first introduces the development of reliability and multidisciplinary optimization at home and abroad as well as the relevant theoretical knowledge system, and then gives a brief description of the framework and content of the whole paper. Secondly, the research on the simulation modeling stage of XX mechanism. The experiment design and analysis are adopted, and the 3D solid modeling of the mechanism is realized. Finally, the dynamics simulation analysis of the mechanism is carried out. The orthogonal test method is used in the design of the test, and the selected data points are highly representative and efficient. Then the response surface is fitted based on the simulation experimental data, and the related functional expressions are obtained to facilitate the work of multidisciplinary optimization in the later stage. Finally, the analysis and research of multi-disciplinary optimization. According to the actual investigation and experience, we divide the design of the mechanism into three disciplines: performance, weight and reliability to select the optimal solution to meet the needs of engineering design.
【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：TH112

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