Analysis Method of Flight Test Results of Large Aspect Ratio wing Maneuvering Load Alleviation and CFD Simulation Verification

Maneuvering load alleviation technology is widely used in advanced large commercial aircraft, which can effectively reduce wing load, hence reduce the weight of wing structure, and improve passengers' travelling comfort. The flight test of the scaled-aircraft model is an important research method of maneuvering load alleviation technology, and the load measurement system can be effectively measured at the designated station by arranging the load measurement system at the designated position of the wing. A rapid processing method for maneuvering load mitigation test data was explored, which can quickly analyze the load alleviation effect in the full wingspan range under any working conditions through a small number of CFD simulation results and flight test load measurement results at limited stations. Also, high-precision CFD simulation technology was used to select a certain working point for detailed load alleviation analysis, and the analysis results is well matched with the flight test results and the results of the rapid load mitigation treatment method.