Bootstrap方法在机电设备振动状态阈值设定中的应用

Application of Bootstrap method in electromechanical equipment of vibrate threshold setting

针对船舶机电设备振动状态阈值设定中存在样本不足的问题,引入Bootstrap方法进行样本扩充。通过仿真实验分析比较2种常用Bootstrap算法的样本扩充效果及其适用性;提出了Bootstrap方法使用中应注意的事项;将该方法用于船用柴油机整机振动状态阈值设定,取得了较好的结果。

Aimed at the problem of electronechanical equipment in ship of vibrate threshold setting. I advanced the Bootstrap method for sample expansion. First, I made use of simulation experiment, based on two kind of usual sampling methods, for count this method＇s effect and feasibility; second, I advanced third pairs of suggestions on application this method; Finally, in practice we applied this method in setting the threshold of vibrant intensity on a certain kind of diesel engine, and achieved a satisfactory result.