Evaluation Methods of Airborne Equipment Removal and Installation Time Based on Maintenance Ergonomics Analysis and Process Simulation Models

Abstract

The removal and installation time of airborne equipment, is not only an important maintainability design index, but also an important parameter to select or optimize the design scheme. A comprehensive evaluation method is presented, which is based on the process simulation model and integrates the evaluation results of maintenance complexity and maintenance ergonomics analysis. Firstly, the disassembly and installation process is decomposed into basic maintenance activities, and process simulation model is created. Then by using modolar arrangement of predetermind time standard (MODAPTS) the basic maintenance activities time is evaluated. Using the coefficient, which is determined by the comprehensive evaluation results of maintenance complexity and maintenance ergonomics analysis, the basic maintenance activities time is corrected. Finally, the disassembly and installation time is evaluated according to basic maintenance activities time and maintenance work process analysis. The method is verified by a case of evaluating engine removal time. The result shows that, the method can be used to accurately evaluate the removal and installation time of airborne equipment, and can meet the needs of aircraft development.

Keywords

• process simulation models
• modapts
• maintenance complexity
• maintenance ergonomics analysis
• removal and installation time