| 结构可靠度的随机边界元法及程序设计 |
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| 引用本文： | 程心恕,王法银.结构可靠度的随机边界元法及程序设计[J].福州大学学报(自然科学版),1994(3):69-76. |
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| 作者姓名： | 程心恕 王法银 |
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| 作者单位： | 福州大学土木建筑工程系 |
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| 摘 要： | 将常规边界元基本方程的矩阵表达式分解为均值和波动值２部分，建立起随机边界元波动方程。利用全徽分理论，导出灵敏性矩阵表达式。结合结构可靠度计算模式的建立编制了随机边界元法的结构可靠度电算ＳＴＯＢＥＭ程序。通过工程实例可靠度分析，结果表明此法精度良好。
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| 关 键 词： | 可靠度 随机变量 边界元 随机边界元法 |
The Stochastic Boundary Element Method of the Structural Reliability and Program Design |
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| Cheng Xinshu,Wang Fayin.The Stochastic Boundary Element Method of the Structural Reliability and Program Design[J].Journal of Fuzhou University(Natural Science Edition),1994(3):69-76. |
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| Authors: | Cheng Xinshu Wang Fayin |
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| Institution: | Cheng Xinshu;Wang Fayin(Department of Civil and Architectural Engineering,Fuzhou University,Fuzhou,350002) |
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| Abstract: | Basical matrix equation of BEM is divided into two parts that are the mean value matrix and the variance value matrix.Based on the approach,the wave equation is established.With the aid of the total differential theory,the sensitivity matrix is introduced.By means of the calculated model of the structural reliability,the computed program(STOBEM) of structural reliability of stochastic BEM is designed.From the calculeted results of STOBEM program, it was shown that the accuracy of the program is very good. |
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| Keywords: | reliability random variable boundary element stochastic boundary element method |
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