Research on APU Life Prediction Method Based on Weibull Distribution

This paper introduces a life prediction method based on Weibull analysis. It establishes a reasonable life prediction method based on the historical data of similar APU components, as well as the design life and reliability of APU components. The influence of reliability, Weibull slope, and component life distribution on the life prediction of APU systems is analyzed. A reasonable component system and unit life prediction model is proposed. Combining with the example of a certain type of APU, this paper analyzes the influence of the life distribution of APU components and different reliability on the life prediction results, as well as the influence of component units and component quantity in the component system on the component system life. For the first time, an APU life prediction method based on Weibull analysis is presented, laying a foundation for APU life prediction.