Timing decision-making method of engine blades for predecisional remanufacturing based on reliability analysis

Abstract

A timing decision-making method for predecisional remanufacturing is presented. The method can effectively solve the uncertainty problem of remanufacturing blanks. From the perspective of reliability, this study analyzes the timing decision-making interval for predecisional remanufacturing of mechanical products during the service period and constructs an optimal timing model based on energy consumption and cost. The mapping relationships between time and energy consumption are predicted by using the characteristic values of performance degradation of products combined with the least squares support vector regression algorithm. Application of game theory reveals that when the energy consumption and cost are comprehensively optimal, this moment is the best time for predecisional remanufacturing. Used engine blades are utilized as an example to demonstrate the validity and effectiveness of the proposed method.

Key words： predecisional remanufacturing; reliability; least squares support vector regression (LS-SVR); game theory

Acknowledgements

This research was sponsored by the National Natural Science Foundation of China (Grant Nos. 51605347 and 51775392).

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