摘要
分析了数控机床常见故障和某系列数控车床的故障间隔时间观测值,利用最小二乘法对参数进行估计,并对线性相关性和假设进行检验,验证其服从威布尔分布,得到了该系列数控车床故障间隔时间的概率密度函数、分布函数和故障失效率函数。
It analyzed the common failures of CNC machine tools and the failure interval time observation value of a series CNC lathe,and used the least square method to estimation parameter.It carried out the linear correlation test and hypothesis test,and verifyed that it was subject to Weibull distribution,then obtained the probability density function,the distribution function and the failure rate function of the fault interval time of the CNC lathes.
作者
李海清
朱永国
杨洁
LI Haiqing;ZHU Yongguo;YANG Jie(School of Mechanical Engineering,Zhejiang Industry Polytechnic College,Shaoxing 312000,CHN;School of Aeronautical Manufacturing Engineering,Nanchang Hangkong University,Nanchang 330063,CHN;Zhejiang Wanfeng Business College,Shaoxing 312500,CHN)
出处
《制造技术与机床》
北大核心
2019年第6期89-92,共4页
Manufacturing Technology & Machine Tool
基金
绍兴市2018年度科技计划(非医卫类)立项项目(2018C10008)
国家自然科学基金(51565042,51865037)
江西省重点研发计划(20161BBE53005,20171BBE50007)
江西省自然基金(20181BAB206029)
