基于马尔可夫链的飞机刹车片检查时间确定

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In order to determine the inspection time scientifically and reasonably for aircraft brake friction disk based on the actual operation conditions of aircraft,a prediction model of Markov chain is proposed.The brake friction disk for a certain fleet are taken as an example to determine inspection time,the wear state classification of brake friction disk is discussed,transition probability matrices is constructed and estimated,wear state of brake friction disk for the fleet is forecast,the results show that prediction results have a good agreement with actual detections.The inspection time for aircraft brake friction disk in the actual operating conditions is determined base on the prediction results of brake friction disk wear.The practical operation results show that the inspection time for aircraft brake friction disk is feasible and effective.为结合飞机实际运行工况,科学合理地制定刹车片检查时间,笔者提出一种基于马尔可夫链理论的预测模型。以某一机群刹车片检查时间确定为实例,分别论述了刹车片磨损状态的划分,转移概率矩阵的构造与估计,并对该机群刹车片磨损状态进行了预测,其预测结果与实际检查情况较吻合。根据刹车片磨损状况的预测结果,制定了该机群在实际运行工况下的刹车片检查时间。实际运行情况表明,所制定的刹车片查检时间可行、有效。