摘要
相关失效普遍存在于各类系统,以传统计算独立部件的备件配置量的方法来确定相关失效部件的备件配置量,往往导致较大的误差。分析了故障源部件的备件保障水平与相关失效部件的故障率的关系,给出了考虑相关失效情况下各类部件的备件期望短缺量与保障费用的计算方法,并以保障费用为目标,备件期望短缺量为约束提出备件优化配置模型,给出了求解该模型的算法。最后通过案例分析,验证了该模型的合理性与工程适用性。
Dependent failures exist commonly in all kinds of systems. The traditional way of independent spare parts allocation is expected to cause great errors when it is applied to the spare parts allocation with dependent failures concerned. This paper analyzes the relation between the spare parts support level of fault source parts and the failure rate of the dependent parts. Computing methods for expected backorder and support cost of various parts are put forward. Furthermore, an optimal allocation model for spare parts including its solution is proposed with cost as its object and within constraints of expected backorder quantity. Eventually, the rationality and the project applicability of this model are proved through a case study.
出处
《系统工程与电子技术》
EI
CSCD
北大核心
2011年第10期2338-2342,共5页
Systems Engineering and Electronics
基金
国家自然科学基金(60904002
70971132)资助课题
关键词
备件
相关失效
优化配置
短缺量
费用
spare part
dependent failure
optimal allocation
backorder ~ cost
