| 硐室边界形状不确定的有限元分析 |
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| 引用本文： | 蒋斌松,陈伟. 硐室边界形状不确定的有限元分析[J]. 山东科技大学学报(自然科学版), 1995, 0(1) |
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| 作者姓名： | 蒋斌松 陈伟 |
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| 作者单位： | 江苏省高淳建筑设计室 |
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| 摘 要： | 本文将地下硐室的边界形状作为不确定的，即随机的，对子三节点三角形单元，采用摄动法导出了随机有限元法的计算公式；根据硐室边界点位置的统计特性（均值及协方差）获得了节点位移及单元应力的统计特性（均值及协方差）。
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| 关 键 词： | 随机变量，摄动法，有限元法，协方差，随机有限元法，均值 |
THE FINITE ELEMENT METHOD FOR THE NONDETERMINISTIC SHAPE OF THE TUNNEL |
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| Jiang Binsong,Chen Wei. THE FINITE ELEMENT METHOD FOR THE NONDETERMINISTIC SHAPE OF THE TUNNEL[J]. Journal of Shandong Univ of Sci and Technol: Nat Sci, 1995, 0(1) |
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| Authors: | Jiang Binsong Chen Wei |
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| Abstract: | In this paper,it is considered for the boundary shape of the tunnel to be nonde-terministu,that is,stochastic. The calculative formula of the finite element method are givenby the use of perturbation series.The statistic moments(mean values and covariances)of thedisplacements and stresses are derived in tarms of the statistical moments(meam values andcovariances)of boundary point coordinates of the tunnel. |
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| Keywords: | statistic variables perturbation method finite element method covariance stochastic finite element method mean values |
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