Robust Optimization Model for Aircraft Inspection Process Considering Uncertain Maintenance Period
Aviation scheduled maintenance is an important task to ensure the airworthiness and safety of aircraft,and it is also a key factor in determining the efficiency and cost of aviation maintenance.Due to the influence of various external factors on the maintenance schedule of aircraft,this paper establishes an aircraft maintenance scheduling model that considers uncertain schedules.The model aims to maximize the robustness value of the process,while considering priority constraints and renewable resource con-straints.Using an improved firefly algorithm for solving,the algorithm was applied to standard practical ca-ses with scales of 10,20,and 30 for verification.The results show that compared to the random search al-gorithm,the improved firefly algorithm improved the process robustness values by 20.87％,93.41％,and 219.40％.Finally,an analysis was conducted on the 500 h scheduled maintenance case of PA44 aircraft at a certain maintenance center.The results show that compared with the actual situation,the robustness value of the project increased by 0.118 2,proving that the model has good applicability in robust optimi-zation of aircraft scheduled maintenance processes.
aircraft scheduled maintenancemaintenance processoptimize modeluncertain construction periodimprove firefly algorithm
万方数据
维普
