机械可靠性设计的内涵与递进

Connotation and Development of Mechanical Reliability-based Design

机械可靠性设计的基本任务是在故障物理学研究的基础上,结合可靠性试验以及故障数据的统计分析,提供实际计算的数学力学模型和方法及实践。这样就可以在机械产品的研制阶段,估计或预测产品在规定工作条件下的工作能力状态或寿命,保证产品具有所需的可靠性。结合现代数学力学理论,系统地阐明机械可靠性设计、机械动态可靠性设计、机械可靠性优化设计、机械可靠性灵敏度设计、机械可靠性稳健设计等系列可靠性设计理论与方法内涵与递进,力图为解决我国机械工程领域可靠性设计核心技术缺乏的问题指明路线与途径以及为形成产品自主研发能力提供技术服务和储备,对工程实际的机械可靠性设计提供系统成组的理论与方法,可以为机械行业提供可靠性分析与设计的技术服务。

Based on the reliability test and statistical analysis of the failure data,the basic task of mechanical reliability design is to propose mathematical-mechanical models and methods for engineering practice.In this way the working state and life of the mechanical product under the prescriptive working condition can be predicted in the design stage.The connotation and development of mechanical reliability-based design is expounded by integrating modern mathematical-mechanical theories.A series of theories and approaches,such as the mechanical reliability-based design,dynamic reliability-based design,reliability-based optimization design,reliability-based sensitivity design,reliability-based robust design,are explained clearly and systematically.The route and way are pointed out to solve the problem of lack of kernel technologies for reliability-based design in the field of mechanical engineering.The reliability technique service and reserve for independent research and development are provided,and the systemic and unitized theories and methods for reliability-based design of mechanical products in practical engineering are given.