| 一种基于可靠性的框架结构优化方法 |
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| 引用本文： | 蔡荫林,蒋东宇.一种基于可靠性的框架结构优化方法[J].强度与环境,1996(3):15-21. |
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| 作者姓名： | 蔡荫林 蒋东宇 |
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| 作者单位： | 哈尔滨工程大学航天工程系!150001 |
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| 摘 要： | 以结构系统的可靠度作为结构优化设计的控制参数。用改进的分枝限界法判认主要失效模式。用PNET法计算结构系统的可靠度。导出了平面框架结构系统可靠度的灵敏度分析表达式。采用梯度投影型算法，求解了平面框架结构重量或造价为约束，最大化结构可靠度，这样一类结构优化问题。若干例题的计算结果表明，提出的方法是有效的。
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| 关 键 词： | 框架结构 结构可靠性 结构设计 |
An Optimization Design Method Based Reliability for Plane Frame Structure |
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| Cai Yinlin, Jiang Dongyu.An Optimization Design Method Based Reliability for Plane Frame Structure[J].Structure & Environment Engineering,1996(3):15-21. |
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| Authors: | Cai Yinlin Jiang Dongyu |
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| Abstract: | In this paper, the reliability of structural system is the control parameter for the structuralOptimization design. The significant failure modes are identified by using the branch-and -bound method.The reliability of the Structural system is eva1uted by PNET method. The expression of sensitivity analy-sis for the plane frame structural system reliability is derived. The Optimum design problem with the con-straint of the structural weight is solved by using the gradient projection Algorithm. Several examples areevalued, the results demonstrate that the method presented in the paper is effective. |
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| Keywords: | Framed structure Structural reliability Optimum structural design |
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