煤矿机械产品可靠性试验中的分组筛选法

针对煤矿机械产品可靠性试验中品种多、批量小、试制周期长等特点,探讨了一种称为分组筛选法的试验方法,以减少试验数据的离散性,利用较少的破坏数据获得与普通方法准确度相当的结果,从而缩短试验周期,使试验费用大幅度地下降,简单易行。

Group Screening Method of Reliability Test in Machinery Products of Coal Mining

In the machinery products of coal mining,the problems that involve numerous variety,short batch,long test cycle wait.This paper discusses another testing method called the group screening method which is to decrease the discreteness of experimental data,and is to obtain the results whose precision is comparable to that of regular methods,with little destruction of the data.Consequently,this group screening testing method curtails testing cycle,significantly reduces testing expenses,and makes it handy for engineering technicians.