基于ANSYS的静力问题结构可靠性分析方法

分别使用ANSYS中的拉丁超立方样本蒙特卡罗法、中心复合设计样本响应面法以及Box—Behnken矩阵样本响应面法进行结构可靠性分析和计算．比较分析结果证明，对于静力问题结构可靠性分析，响应面分析结果仅在输出参数的均值、最大值以及最小值上逼近蒙特卡罗法结果，确定目标的可靠度以及输出参数标准差结果偏差较大；对于灵敏度分析结果，仅有高灵敏度变量结果可信．

Structure reliability analysis methods of static strength based on ANSYS

The structure reliability are analyzed and calculated separately using Monte Carlo method with Latin Hypercube sample, response surface analysis method with center composite design sample and response surface analysis method with Box Behnken matrix sample in ANSYS. The comparison of the analysis results show that, as to the structure reliability analysis of the static strength, the response surface analysis result approach the Monte Carlo method result merely at the average values, maximum values and minimum values of output parameters, but the reliability of objective determination and the standard deviation of the output parameter have a big deviation; as to sensitivity analysis results, only the values of high sensitivity variables are dependable.