| 基于随机有限元的结构优化设计 |
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| 引用本文： | 程心恕,苏燕,程旭日.基于随机有限元的结构优化设计[J].福州大学学报(自然科学版),1999,27(3):1-100. |
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| 作者姓名： | 程心恕 苏燕 程旭日 |
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| 作者单位： | 1. 福州大学土木建筑工程学院,福建,福州,350002
2. 福州长乐国际机场集团总公司,福建,福州,350001 |
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| 摘 要： | 主要探讨了用随机有限元法分析结构可靠度及优化设计的方法，优化方法采用直接法中有代表性的复形法，设计中考虑了荷载和抗力的随机性；优化模式中，用强度、稳定等的可靠性约束取代传统的优化模式中的确定性静态约束，进行结构体形优化．最后对工程实例进行分析计算，得出一些有益的结论．
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| 关 键 词： | 可靠度 随机有限元 优化 |
Optimization Based on the Stochastic Finite Element Method |
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| CHENG Xin-shu,SU Yan,CHENG Xu-ri.Optimization Based on the Stochastic Finite Element Method[J].Journal of Fuzhou University(Natural Science Edition),1999,27(3):1-100. |
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| Authors: | CHENG Xin-shu SU Yan CHENG Xu-ri |
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| Affiliation: | 2 (1 College of Civil and Architectural Egineering,Fuzhou University,Fujian Fuzhou 350002,China; 2 Changle International Airport Company Fuzhou,Fujian Fuzhou 350001,China) |
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| Abstract: | This paper is mainly concerned with the reliability of structure and its optimization based on the stochastic finite element method. It uses symbolic complex method in direction methods to analyze optimization,dealing with satisfying features of loads and resisting forces. In the optimization model,the reliable constraint of the strength and stability takes the place of the traditional determined static constraint for the optimization of the shape of structure. Finally,good results are obtained based on analysis and calculation of a gravity dam. |
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| Keywords: | reliability stochastic finite element optimization |
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