基于ISIGHT的连杆有限元分析及多学科设计优化
发布时间：2019-01-20 13:25
【摘要】：传统的结构优化设计方法不能结合各个学科的优势,也存在各种不确定性影响设计结果。目前柴油机连杆的优化设计研究还主要应用的是单学科的优化分析技术,对柴油机连杆使用多学科设计优化的方法进行研究的还比较少。 多学科设计优化(Multidisciplinary Design Optimization-MDO)的设计思想和目的与现代柴油机设计的要求是完全吻合的,它可以提高产品质量、降低成本、缩短设计周期。因此,运用多学科设计优化方法在柴油机及其零部件设计中的前景是很可观的,具有重要的现实意义和较高的学术价值。 本文以法国热机学会(SEMT)研发的大功率四冲程16PA6STC舰用柴油机连杆为研究对象,利用结构线性有限元理论分析连杆在最大压缩工况和最大拉伸工况下连杆的受力状态,并在此基础上结合多学科设计优化理论对连杆进行结构优化,采用ISIGHT多学科设计优化软件集成现在市场上多款流行的分析设计软件包括ANSYS、Pro/Engineer、Nastran对连杆进行约束静力、模态条件下的结构优化,探索多学科设计优化思想在柴油机零部件方面的应用,并为连杆的进一步改进设计提供参考。
[Abstract]:The traditional structural optimization design method can not combine the advantages of various disciplines, and there are various uncertainties affecting the design results. At present, the research on the optimization design of diesel engine connecting rod is mainly based on the single subject optimization analysis technology, but there are few researches on the multi-disciplinary design optimization method of diesel engine connecting rod. The design idea and purpose of multidisciplinary design optimization (Multidisciplinary Design Optimization-MDO) is completely consistent with the requirements of modern diesel engine design. It can improve the product quality, reduce the cost and shorten the design period. Therefore, the prospect of applying multidisciplinary design optimization method in diesel engine and its parts design is considerable, which has important practical significance and higher academic value. In this paper, the connecting rod of a high-power four-stroke 16PA6STC marine diesel engine developed by the French Institute of Heat engine (SEMT) is taken as the research object. The structural linear finite element theory is used to analyze the stress state of the connecting rod under the maximum compression condition and the maximum tensile condition. On this basis, the structural optimization of the connecting rod is carried out by combining the multidisciplinary design optimization theory. The ISIGHT multidisciplinary design optimization software is used to integrate many popular analytical and design software, including ANSYS,Pro/Engineer,Nastran, to constrain the connecting rod. The structural optimization under the modal conditions explores the application of multidisciplinary design optimization in diesel engine parts and provides a reference for the further improvement of the design of connecting rod.
【学位授予单位】：江苏科技大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：TH112.1
本文编号：2412076
[Abstract]:The traditional structural optimization design method can not combine the advantages of various disciplines, and there are various uncertainties affecting the design results. At present, the research on the optimization design of diesel engine connecting rod is mainly based on the single subject optimization analysis technology, but there are few researches on the multi-disciplinary design optimization method of diesel engine connecting rod. The design idea and purpose of multidisciplinary design optimization (Multidisciplinary Design Optimization-MDO) is completely consistent with the requirements of modern diesel engine design. It can improve the product quality, reduce the cost and shorten the design period. Therefore, the prospect of applying multidisciplinary design optimization method in diesel engine and its parts design is considerable, which has important practical significance and higher academic value. In this paper, the connecting rod of a high-power four-stroke 16PA6STC marine diesel engine developed by the French Institute of Heat engine (SEMT) is taken as the research object. The structural linear finite element theory is used to analyze the stress state of the connecting rod under the maximum compression condition and the maximum tensile condition. On this basis, the structural optimization of the connecting rod is carried out by combining the multidisciplinary design optimization theory. The ISIGHT multidisciplinary design optimization software is used to integrate many popular analytical and design software, including ANSYS,Pro/Engineer,Nastran, to constrain the connecting rod. The structural optimization under the modal conditions explores the application of multidisciplinary design optimization in diesel engine parts and provides a reference for the further improvement of the design of connecting rod.
【学位授予单位】：江苏科技大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：TH112.1
【引证文献】
相关博士学位论文 前1条
1 孙喜龙;汽车被动安全性的模块化建模方法与多目标优化研究[D];吉林大学;2013年
相关硕士学位论文 前2条
1 张庆山;基于ISIGHT的集成技术的研究及在吊艇架上的应用[D];华南理工大学;2012年
2 何仕永;桥（门）式起重机小车架结构轻量化设计与研究[D];西南交通大学;2013年
，本文编号：2412076
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