Department of Space Support,Space Engineering University
Aiming at the problem of equipment maintainability evaluation, a comprehensive evaluation model based on entropy value is proposed. Based on the analysis of the general process of equipment maintenance and the problem of maintainability evaluation, an evaluation index system for equipment maintainability combining qualitative and quantitative indexes is constructed. And the comprehensive evaluation model of equipment maintainability, which consists of an entropy based measurement model of evaluation indexes, equipment maintenance information structure diagram and behavior control chart, entropy based aggregation model of evaluation indexes, is introduced. Finally, an entropy based evaluation example of equipment maintainability is given, and the application direction of the evaluation model is analyzed. The numerical example shows that the proposed method is reasonable and feasible, and can effectively integrate various maintenance factors such as maintenance tasks, maintenance guarantees and maintenance effects to evaluate the maintainability of the equipment.