Model-based testing method for flight simulator QTG testing

Fidelity of the simulator directly reflects the consistency of flight characteristics between the flight simulator and the aircraft. Generally, the fidelity of the flight simulator is evaluated through QTG objective testing and pilot-in-loop subjective testing. QTG objective testing injects flight test data of specific test items into the flight simulator, drives the simulator in reverse, and examines whether the deviation between the simulator response and flight test data meets tolerance requirements. The engineering simulator will be frequently modified in the progress of aircraft design, so QTG objective testing method for training simulator fidelity test based on guide of airworthiness standards is no longer suitable. In addition, the QTG test cases of the engineering simulator may experience significant changes depending on the changes of scope and test cases. Considering the above characteristics of engineering simulators and the complexity of modern civil aircraft design, a new method is needed for effective and efficient QTG test of simulators. In this paper, a Model-based Testing Method for QTG objective testing of engineering simulators is proposed, which achieves flexibility and adaptability by designing a test model. Based on the model of test cases, a workflow for automatically generating test cases is formed.