基于工况-时间分布规律确定装备预防性维修间隔期  

Determine Interval of Preventive Maintenance of Equipment Based on Running State-time Distributing

作　　者：杨智[1] 李金寿[1] 董华玉[1] 

机构地区：[1]镇江船艇学院,江苏镇江212003

出　　处：《火力与指挥控制》2015年第1期34-36,41,共4页Fire Control & Command Control

基　　金：军队科研基金资助项目(××[2009]83号)

摘　　要：考虑到装备工况变化通常会影响到装备寿命,提出了一种基于工况-时间分布规律的装备可靠性评估及预防性维修间隔期的确定方法。采用Gamma过程描述装备性能指标退化过程,以形状参数反映工况的变化,推导出基于工况-时间分布规律的装备寿命分布;进而得到可靠度表达式,确定了预防性维修间隔期;最后给出了方法在某6300型柴油机中的应用实例,验证了方法的有效性。Considering a change of Running State often effects life of an equipment, a reliability assessment and interval of Preventive Maintenance determine method for the equipment based on Running State-time distributing is proposed. A gamma process is employed to describe a degradation process of the equipment performance, and the change of running state is reflected by shape parameter, the life distribution of the equipment is derived based on Running State-time distributing. Then an expression of reliability is obtained and the interval of Preventive Maintenance is determined. Finally an apply case in a 6300 type diesel engine is given,which demonstrated the validity of the method.

关 键 词：工况-时间分布规律 Gamma过程 预防性维修间隔期 可靠性 

分 类 号：TB114.3[理学—概率论与数理统计]