The Study on Mechanical Reliability Design Method and Its Application

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. Based on characteristics of mechanical reliability design, as well as study on reliability design of mine hoist, taking mine hoist spindle bearing as example, this paper discusses the application of reliability design in mine hoist design.