基于逼近理想解和模糊综合评价的机械产品元动作健康状态评估OA北大核心CSTPCD

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 eval-uation 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 approx-imation ideal solution with fuzzy comprehensive evaluation can quantitatively and comprehensively evaluate the health status of the meta-action unit.