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农村调查文集
Feng YuRelated papers
基于加速退化试验的滚珠丝杠副统计分析
北京工业大学学报, 2017
为有效地获取滚珠丝杠副精度寿命特征,利用滚珠丝杠副磨损特征建立加速退化模型,并且根据设计的试验装置和试验过程的摩擦力矩值变化情况,采用参数估计方法进行退化数据的统计分析,获得不同应力水平下的滚珠丝杠副加速退化参数模型.同时,根据不同应力条件下实测的滚珠丝杠副摩擦力矩退化数据,计算出滚珠丝杠副定位反向变动量,为滚珠丝杠副的定位精度退化提供一种新的评价方法.建立的滚珠丝杠副加速退化模型针对其磨损进程极为缓慢的特性,利用该退化方法能较准确地推算出滚珠丝杠副精度寿命,能节约滚珠丝杠副试验费用、试验时间和指导滚珠丝杠副的设计.
Review and the prospect of ecological community research
SCIENTIA SINICA Technologica
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