Modern Manufacturing Engineering ›› 2024, Vol. 524 ›› Issue (5): 1-9.doi: 10.16731/j.cnki.1671-3133.2024.05.001

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Evaluation of the meta-action health state of mechanical products based on approximate ideal solution and fuzzy comprehensive evaluation

CAI Yifeng1,2, RAN Yan1,2   

  1. 1 College of Mechanical and Vehicle Engineering, Chongqing University, Chongqing 400044, China;
    2 State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing 400044, China
  • Received:2023-07-03 Online:2024-05-18 Published:2024-05-30

Abstract: Health status assessment is an indispensable part of the high-quality development of mechanical products. Starting from the motion level, it proposes a health state assessment method based on approximate ideal solution and fuzzy comprehensive evaluation method based on the meta-action unit in mechanical products as the research object. Firstly, the M-FMMECA method was used to determine the key degradation indicators of meta-action performance, and then the quantitative index of meta-action unit health index was given. Next, the approximate ideal solution was applied to the evaluation of meta-action health state, and a quantitative model of meta-action unit health state was established. Then, after completing the classification of health status, the fuzzy comprehensive evaluation method was used to determine the health status membership function of the meta-action unit, and the health status assessment was completed. Finally, taking the bevel gear rotation element action unit of a reliability test bench as an example, a case analysis of the health state assessment method was carried out. The results show that combining the approximation ideal solution with fuzzy comprehensive evaluation can quantitatively and comprehensively evaluate the health status of the meta-action unit.

Key words: meta-action unit, approximating the ideal solution, fuzzy comprehensive evaluation, health status assessment

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