Fatigue Test Optimization for the Aircraft Engine Based on the Life Cycle Information Support and Modeling

Abstract

Boosting efficiency of fatigue test for the complex technical object (for instance, aircraft engine) is possible applying assessment based on the integral relationship between the economic effect from the object operation and test parameters. The issue of assessing the efficiency criterion of fatigue test in the framework of the complex technical object life cycle is introduced. To implement this approach, it is necessary to use the life cycle modeling technologies of the complex technical object. Engine condition is described by numerous parameters during testing and operating. The problem of data acquisition and processing should be solved to build a life cycle model. The methodology of fatigue test optimization for the complex technical object based on the life cycle modeling is proposed in the paper. An example of the fatigue test assessment for the gas-turbine engine is discussed. The aim of maximizing the test efficiency was achieved by selecting the test modes, test duration, and number of tested engines.