基于双层Bayes分析的3维编织复合材料弹道侵彻异常点检验

Outliers Test of 3D Braided Composite's Ballistic Data Based on Double Bayesian Analysis

在3维编织复合材料的弹道侵彻测试数据异常点检验中,将仿真数据作为试验数据的先验信息,采用Bayes方法检验模型形式和参数:应用2步估计方法推导出关键参数的后验分布,应用小概率判别法检验出异常点。数据统计分析结果表明:综合仿真数据与试验数据提供的信息,采用双层Bayes分析法检验异常点是行之有效的。

In the outliers test of 3D braided composite's ballistic penetration test data,taking the simulation data as the prior of experimental data,Bayes method is adopted in the test of model and parameters,the method of two-step estimation is used to deduce posterior distribution of key parameter,and the outliers is examined by the little probability discriminant method. The data statistical analysis result shows that it is an effective method to test the outliers with the double Bayesian analysis method using the information provided by simulation data and experimental data.