基于加工中心的极小子样试验评估法  

THE EXTREME SMALL-SCALE SAMPLE TEST EVALUATION METHOD BASED ON MACHINING CENTER

作　　者：杨志伟[1] 任工昌[1] 孟勃敏[1] 

机构地区：[1]陕西科技大学机电工程学院,陕西西安710021

出　　处：《陕西科技大学学报（自然科学版）》2012年第1期40-42,共3页Journal of Shaanxi University of Science & Technology

基　　金：国家"高档数控机床与基础制造装备"科技重大专项(2009ZX04001-014)

摘　　要：为了对大型复杂昂贵的加工中心进行精度更高的可靠性寿命评估,作者利用工程试验的经验信息提出了将虚拟增估广法和半经验评估法相结合的可靠性评估方法.该评估方法提高了加工中心在极小样本量下的试验寿命评估的精度,为加工中心的可靠性研究提供了更加合理有效的评估方法.In order to make higher accuracy reliability life assessment, which aiming to the large complicated and costly machining centers, making full use of the engineering test expe- rience information, the reliability assessment method of combined by the virtual augmented method and the semiempirical evaluation method was putted forward for reliability assess- ment on the machining center. This evaluation method increased the accuracy of the test life assessment of the machining center in extreme small-scale sample size, and provided a more reasonable and effective assessment method for the reliability research on machining center.

关 键 词：加工中心 极小子样本 半经验评估 虚拟增广 

分 类 号：TH161[机械工程—机械制造及自动化]