基于故障物理的复杂机械系统可靠性设计分析技术

doi:10.12382/bgxb.2022.A029

摘要/Abstract

摘要： 武器装备机械系统结构复杂、故障模式多、相关性强，工作过程承受振动、冲击、高温等复杂工作环境应力作用。从复杂机械系统及其关键件的故障机理研究出发，分析工作条件、环境应力及时间对系统退化或故障的影响，利用仿真和试验相结合建立零部件、系统可靠性模型，提出一套基于故障物理的复杂机械系统可靠性设计分析流程和方法,包括故障物理模型建立、零部件或结构的可靠性设计分析、机械系统或机构可靠性设计分析等。结果表明：该项技术应用于武器装备关键系统，可以有效预测和评估系统的可靠度和寿命，并提高装备的可靠性水平。

关键词: 复杂机械系统, 系统可靠性, 故障物理, 可靠性分析

Abstract: The mechanical systems for weapon equipment have the following characteristics:complex structure，multi-failure modes，strong correlation，and work under complex and severe environmental stresses， such as vibration，shock，and high temperature，etc. Starting from the research on the failure mechanism of complex mechanical system and its key components，the influence of working conditions，environmental stress and time on system degradation or failure is analyzed，and the reliability models of component and system are established by combining simulation and experimentation. A set of reliability design and analysis processes and methods for complex mechanical systems based on physics of failure are proposed. This technology includes the system failure mode and mechanism analysis，the establishment of failure physical model，the reliability design and analysis of parts or structures，and the reliability and design analysis of mechanical system or mechanism，etc. The reliability degree and life of the system can be effectively predicted and evaluated by applying this technology to the key system of weapon equipment，and the improvement measures can be proposed to improve the reliability level of weapon system.

Key words: complexmechanicalsystem, systemreliability, physicsoffailure, reliabilityanalysis

中图分类号:

TJ02

刘勤，姬广振，曹璞琳，李娟，刘英. 基于故障物理的复杂机械系统可靠性设计分析技术[J]. 兵工学报, 2022, 43(S1): 189-195.

LIU Qin， JI Guangzhen， CAO Pulin， LI Juan， LIU Ying. Reliability Design and Analysis Methodfor Complex Mechanical System Based on Physics of Failure[J]. Acta Armamentarii, 2022, 43(S1): 189-195.

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