关键词: 可靠性功能配置, 多失效模式相关, 逆可靠度法, 可靠性屋

Abstract: By analyzing the achievements and shortages of related research works on mechanical reliability design,a novel method of technical characteristics deployment based on Reliability Function Deployment (RFD) was put forward.The matrix decomposition structure of RFD was used to described the correlative relations between the failure mechanisms,the soft failures and the hard failures.By considering the correlation of parts'multiple failure modes,the reliability loss of failure mode to whole part was defined,and a calculation model for reliability loss was presented.According to the reliability loss scale,the reliability index value of whole part was allocated to each failure mode.Based on the allocation of reliability index value,the inverse reliability method was employed to acquire the values of technology characteristics.The feasibility and validity of proposed method were illustrated by a development case of machining center's transmission system.

Key words: reliability function deployment, multi-mode correlation, inverse reliability method, house of reliability