The Stochastic Imperfection Method of Sheet Space Structure Based On Truncated Univariate Normal Distributions

机译：基于截短的单变量正态分布的薄板空间结构随机缺陷方法

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The initial geometric imperfections is a key issue of the stability analysis of sheet space structures. A new described method of the initial geometric imperfections which is located in local spherical coordinate system is given, and the random imperfection variable is assumed to follow a truncated univariate normal distribution (TUVN). A well working envelope function for TUVN is chosen, and the acceptance rate is high for constrained region of the design code. The method provided in the paper is called spherical truncated normal stochastic imperfection method (STNS). The results of consistent mode imperfections method, traditional stochastic imperfection method and STNS method are compared, by which some conclusions that are useful for the design and the study of sheet space structures are obtained.

机译：初始几何缺陷是纸张空间结构稳定性分析的关键问题。给出了位于局部球形坐标系中的初始几何缺陷的新描述方法，并且假设随机缺陷变量遵循截短的单变量正态分布（TUVN）。选择用于图载的良好工作包络功能，并且设计代码的受约束区域的接受率高。本文中提供的方法称为球形截短的正常随机缺陷方法（STN）。比较了一致的模式缺陷方法，传统随机缺陷方法和STNS方法的结果，通过该方法，可以获得对设计和纸张空间结构的研究有用的结论。

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《International Conference on Material Science and Environmental Engineering》|2014年||共5页
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作者
Tian-jiao JIN; Xiao-ming GUO;
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中图分类 TB3-53;
关键词
Sheet Space Structures; Sensitivity Imperfection; Truncated Univariate Normal Distributions; Local Spherical Coordinate System; Stochastic Imperfection Method;

机译：薄板空间结构;敏感性缺陷;截短的单变量正常分布;局部球形坐标系;随机缺陷方法;

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The Stochastic Imperfection Method of Sheet Space Structure Based On Truncated Univariate Normal Distributions

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