Reliability Simulation Modeling Techniques under Multiple Degradation Mechanisms

This paper explores the issue of state modeling for equipment under multiple degradation modes, aiming to propose a comprehensive method for assessing equipment reliability. The natural degradation of equipment is not due to a single mode but results from the combined effects of various mechanisms such as fatigue, corrosion, wear, and crack propagation. This phenomenon of multiple degradation mechanisms renders a single degradation model insufficient to fully characterize the natural evolution of equipment. Therefore, this study introduces different characterization processes for different degradation modes, with the goal of developing an integrated state modeling method that considers multiple degradation modes to more accurately predict and assess the current mission reliability of the equipment. Finally, through a case study, the effectiveness of the proposed method in practical application is verified, and a detailed analysis of the modeling results is conducted.