Aeroengine Maintenance Analysis Based On Disassembly Sequence Planning Method

The maintainability of aeroengine has a direct impact on its maintenance efficiency,and the maintenance efficiency is directly related to the maintenance time and cost of the aero-engine failure,that affects the operating economy of airlines or operators.Therefore,the research on the maintainability of the aero-engine repair process is of great significance to airlines.As maintainability involves many aspects,it focuses on its demolition and maintainability,and uses the improved ant colony algorithm to optimize the disassembly sequence of the turbine part structure to achieve the purpose of shortening the maintenance cycle and saving maintenance costs.First of all,by collecting a large number of service bulletin data of CFM56 series aeroengine,the maintenance design defects in it is studied.It find that the main reason for the maintenance defects is maintenance economics and the areas with the most frequent defects are turbine parts.Secondly,the structure of CFM56 series aeroengine is studied.The solid model of aeroengine was established by using CATIA software.On the basis of this,it studied the disassembly priority of aeroengine turbine components,introduced the PETRI network and the interference matrix model and constructed the disassembly model of turbine structural components.Then,based on the above research,the demolition maintenance performance of the turbine structure is analyzed.Based on the basic ant colony algorithm,the improved algorithm is used to study the disassembly sequence of turbine components.The disassembly flow chart and the implementation procedure are given,and in terms of maintenance economics,the disassembly sequence under different goals is optimized.Finally,it simulates the disassembly process of the optimized sequence of turbine structural components by DELMIA software,and analyzes its man-machine function in virtual maintenance process to verify the rationality of disassembly sequence planning results.