| 具有应力集中的机械零件可靠性稳健设计 |
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| 引用本文： | 张义民,高娓,宋相强,黄贤振. 具有应力集中的机械零件可靠性稳健设计[J]. 工程力学, 2008, 25(11) |
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| 作者姓名： | 张义民 高娓 宋相强 黄贤振 |
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| 作者单位： | 东北大学机械工程与自动化学院,辽宁沈阳110004 |
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| 基金项目： | 国家高技术研究发展计划(863计划)，国家自然科学基金，高等学校创新团队项目 |
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| 摘 要： | 针对在工程中很难给出带有应力集中的机械零件的显式功能函数的问题,将有限元方法、神经网络技术和可靠性理论相结合,给出了带应力集中的机械零件的可靠性稳健设计方法,数值模拟得到随机设计变量与机械零部件结构响应之间的函数关系式,结合随机摄动法和可靠性灵敏度技术,进行结构可靠性稳健设计,从而解决了工程实际中很难给出极限状态函数显式的问题,为结构可靠性稳健优化设计提供了一种新方法。
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| 关 键 词： | 有限元法 可靠性稳健设计 神经网络 应力集中 极限状态函数 |
RELIABILITY-BASED ROBUST DESIGN FOR MECHANICAL COMPONENTS WITH STRESS CONCENTRATIONS |
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| ZHANG Yi-min,GAO Wei,SONG Xiang-qiang,HUANG Xian-zhen. RELIABILITY-BASED ROBUST DESIGN FOR MECHANICAL COMPONENTS WITH STRESS CONCENTRATIONS[J]. Engineering Mechanics, 2008, 25(11) |
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| Authors: | ZHANG Yi-min GAO Wei SONG Xiang-qiang HUANG Xian-zhen |
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| Affiliation: | School of Mechanical Engineering & Automation;Northeastern University;Shenyang;Liaoning 110004;China |
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| Abstract: | Based on the finite element method, artificial neural network (NN) technique and reliability-based robust design theory, the explicit relational expression between the design parameters and the system reliability of the mechanical components with stress concentrations are given correctly by NN with the approximation concepts inherent in reliability analysis. On the basis of the trained NN, the probabilistic perturbation method can be used to obtain the reliability-based robust design information. Therefore,... |
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| Keywords: | finite element method reliability-based robust design neural network stress concentrations limit state function |
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