Civil aero-engine module workscope decision-making

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.