基于组合赋权-改进可拓云的装甲车辆PHM系统性能评估

Performance Evaluation of Armored VehiclePHM SystemBased on Combined Weighting-Improved Extension Cloud

针对装甲车辆PHM系统性能评估过程中主观性强、评语等级界限分明等问题,采用主客观组合赋权和改进可拓云理论相结合的评估方法,增强了评估结果的客观性和准确性;首先介绍了装甲车辆PHM系统组成及其性能评估指标体系,然后采用基于“AHP-熵值”的组合赋权法确定指标权重系数,采用基于最优云熵的改进可拓云理论确定各指标云关联度值,最后采用模糊综合评判方法计算了4套装甲车辆PHM系统性能;结果表明,改进评估方法在不失准确性的同时,能够有效克服评估主观性和评语等级界限分明性,为装甲车辆PHM系统性能的优化提供了借鉴和参考。

Aiming at the problems of strong subjectivity and clear boundary of comment level in the performance evaluation of armored vehicle PHM system,combining subjective and objective combination weighting with improved extension cloud theory,the evaluation method is adopted to enhance the objectivity and accuracy of evaluation results;Firstly,the composition and performance evaluation index system of armored vehicle PHM system are introduced,then the index weight coefficient is determined by the combined weighting method based on the“AHP entropy”,and the cloud correlation value of each index is determined by the improved extension cloud theory based on the optimal cloud entropy.Finally,the performance of four sets of armored vehicle PHM system is calculated by the fuzzy comprehensive evaluation method.The results show that the improved evaluation method can effectively overcome the subjectivity of evaluation and the clear boundary of evaluation level without losing accuracy,the reference for performance optimization of armored vehiclePHM system is provided.