煤矿机械产品可靠性试验中的分组筛选法 |
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引用本文: | 孙未. 煤矿机械产品可靠性试验中的分组筛选法[J]. 煤矿机械, 2013, 34(3): 70-71 |
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作者姓名: | 孙未 |
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作者单位: | 成都理工大学核技术与自动化工程学院,成都,610059 |
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摘 要: | 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。
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关 键 词: | 煤矿机械 可靠性 分组筛选法 威布尔分布 疲劳寿命 |
Group Screening Method of Reliability Test in Machinery Products of Coal Mining |
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Abstract: | 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. |
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Keywords: | coal mining machinery reliability group screening method weibull distribution fatigue life |
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