民用航空发动机单元体送修工作范围决策  

Civil aero-engine module workscope decision-making

作　　者：付旭云[1] 钟诗胜[1] 丁刚[1] 

机构地区：[1]哈尔滨工业大学机电工程学院,哈尔滨150001

出　　处：《航空动力学报》2010年第10期2195-2200,共6页Journal of Aerospace Power

基　　金：国家高技术研究发展计划(2008AA04Z401)

摘　　要：为了对航空发动机单元体送修工作范围的制定提供决策支持,实现决策的自动化和智能化,在分析航空发动机送修目标的基础上,提出了一种面向目标的单元体送修工作范围决策方法,从时寿件、适航指令/服务通告、硬件损伤、软时限、排气温度裕度五个方面分两步进行单元体送修工作范围的制定.针对决策过程中单元体性能恢复分配存在的难点,建立了以成本最小为目标的优化模型,分别采用动态规划和启发式算法对模型进行了求解,通过对求解结果的比较,给出了两种算法的适用环境.最后将提出的决策方法应用于一个原型系统,在某个航空公司的试用表明了提出的决策方法是有效的,能够满足航空公司的需求.A objective-oriented method for module workscope decision-making was proposed to supply support for the aero-engine module workscope and achieve automatic and intelligent decision-making after analyzing the objectives of aero-engine shop visit.Module workscope was made through two steps from five aspects of life limited parts,airworthiness directive/service bulletin,hardware damage,soft time and exhaust gas temperature margin.To solve the problem of distribution of module performance restoration value in decision-making process,an optimization model based on minimum shop visit cost was put forward and solved by using dynamic programming and heuristic algorithm,respectively.By comparing the results,an applicable environment of the two algorithms was given.Finally,the proposed decision-making method was applied to a prototype system.The test result in an airline shows that the proposed decision-making method is effective and capable of satisfying the requirements of airline companies.

关 键 词：航空发动机 单元体 送修工作范围 排气温度裕度 性能恢复分配 

分 类 号：V263.6[航空宇航科学与技术—航空宇航制造工程]