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改装类服务通告的经济性决策是航空维修企业工程人员的一项重要工作内容。设计了改装类服务通告经济性决策程序;通过服务通告对飞机运营的经济性影响分析构建了成本分解结构,并对不同的成本项目建立了成本评估模型;针对模型的成本影响参数MTBUR和MTBF的估计采用了贝叶斯方法以解决小样本问题;通过投资回收期方法获得评价指标以决定是否进行服务通告改装投资。最后通过实例对决策方法的应用进行说明。此方法能够为航空企业的维修改装决策提供有效的技术支持。
Economy class decision-making service notice is an important part of aviation maintenance business engineers. The economical decision-making procedure of modified service announcements was designed. Based on the analysis of the economic impact of service announcements on the operation of aircraft, a cost breakdown structure was constructed and cost estimation models were established for different cost items. Aiming at the cost impact parameters MTBUR and MTBF It is estimated that the Bayesian method is used to solve the problem of small samples. The evaluation index is obtained through the method of payback period to decide whether to carry out service bulletin conversion investment. Finally, an example is given to illustrate the application of decision-making method. This method can provide effective technical support for aviation enterprise’s maintenance and modification decision-making.