考虑分布和传递模型的机械系统可靠性分配方法

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中图分类号：TH123

DOI：10.3969/j.issn.1004-132X.2025.06.001 开放科学（资源服务）标识码（OSID）：

A Reliability Allocation Method Considering Distribution and Transmission Models for Mechanical Systems

WANG Zhichaol* LIU Chao1RAN Yan² CHEN Yifan³ JIANG Dongxiang1 ZHANG Genbao2，3 1.Department of Energy and Power Engineering，Tsinghua University，Beijing，100084 2.College of Mechanical and Vehicle Engineering，Chongqing University，Chongqing，400044 3.School of Intelligent Manufacturing Engineering，Chongqing University of Arts and Sciences， Chongqing，402160

Abstract： To address the problems of the allocation reliability of lower-level units being greater than that of the upper-level unit in the multi-layer structure reliability allocation of mechanical systems，a novel reliability allocation method was proposed. Firstly，the mechanical systems were divided into a system-function-motion-action（SFMA） hierarchy structure. Then，according to the hierarchy structure consisting of distribution and transmisson models，the reliability alocation techniques were proposed by combining the minimum cost method and reliability function，and the reliability allocation models of the mechanical systems，function units，motion units，and sub-motion units were established from top to bottom.Finally，taking the gear grinding machine as an example，the feasibility and effectiveness of the proposed method were verified.

Key words： mechanical system; meta-action unit； distribution model; transmission model; reliability allocation

0 引言

机电装备的固有可靠性首先是设计出来的，然后才是生产和管理出来的[1-2]。（剩余14356字）