中国机械工程 ›› 2025, Vol. 36 ›› Issue (06): 1143-1150.DOI: 10.3969/j.issn.1004-132X.2025.06.001

• 机械基础工程 • 上一篇    下一篇

考虑分布和传递模型的机械系统可靠性分配方法

王治超1*;刘超1;冉琰2;陈一凡3;蒋东翔1;张根保2,3   

  1. 1.清华大学能源与动力工程系,北京,100084
    2.重庆大学机械与运载工程学院,重庆,400044
    3.重庆文理学院智能制造工程学院,重庆,402160

  • 出版日期:2025-06-25 发布日期:2025-07-31
  • 作者简介:王治超*(通信作者),男,1991年生,博士、助理研究员。研究方向为机械系统可靠性、智能故障诊断。E-mail:wangzhichao@mail.tsinghua.edu.cn。
  • 基金资助:
    国家自然科学基金(51835001)

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

WANG Zhichao1*;LIU Chao1;RAN Yan2;CHEN Yifan3;JIANG Dongxiang1;ZHANG Genbao2,3   

  1. 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

  • Online:2025-06-25 Published:2025-07-31

摘要: 针对机械系统多层结构可靠性分配中下层单元分配的可靠性必须大于上层单元可靠性的问题,提出了一种新的可靠性分配方法。首先,对机械系统进行系统功能运动动作(system-function-motion-action,SFMA)的层次结构划分。然后,根据层次结构由分布和传递模型组成,结合最小成本分配法和可靠度函数,提出可靠性分配技术,并自上而下地建立机械系统、功能单元、运动单元和分运动单元的可靠性分配模型。最后,以磨齿机为例,验证了所提方法的可行性和有效性。

关键词: 机械系统, 元动作单元, 分布模型, 传递模型, 可靠性分配

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 transmission models, the reliability allocation 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

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