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Acta Aeronautica et Astronautica Sinica ›› 2026, Vol. 47 ›› Issue (5): 232510.doi: 10.7527/S1000-6893.2025.32510

• Solid Mechanics and Vehicle Conceptual Design • Previous Articles    

Research progress on dynamic load characteristics, measurement and identification technology of aircraft structure

Qixiao ZHU1,2,3, Yanxin HUANG4, Rui ZHU1,2,3, Xiaochen HANG1,2,5, Qingguo FEI1,2,3()   

  1. 1.Key Laboratory of Structural and Thermal Protection for High-Speed Aircraft,Ministry of Education,Nanjing 211189,China
    2.Jiangsu Engineering Research Center of Aerospace Machinery,Nanjing 211189,China
    3.School of Mechanical Engineering,Southeast University,Nanjing 211189,China
    4.AVIC Aerodynaiviics Research Institute,Shenyang 110034,China
    5.School of Mechanical and Electrical Engineering,Nanjing Forestry University,Nanjing 210037,China
  • Received:2025-07-03 Revised:2025-08-13 Accepted:2025-09-08 Online:2025-09-19 Published:2025-09-18
  • Contact: Qingguo FEI E-mail:qgfei@seu.edu.cn
  • Supported by:
    National Natural Science Foundation of China(52125209);Jiangsu Natural Science Foundation(BK20241261);Fundamental Research Funds for the Central Universities(3202002501C1);Aerospace Science Foundation of China(20240013069001)

Abstract:

The aircraft often faces a complex dynamic load environment during service, and its measurement cost is high and difficult to obtain by direct measurement. Dynamic load identification based on dynamic response information has become a feasible solution to obtain structural input. In this paper, the dynamic load identification problems of aircraft are reviewed from three aspects: “cognition, measurement and identification”. Firstly, the load characteristics at typical positions such as wings, tail, rudder surface, fuselage, and landing gear of the aircraft are analyzed, which provides necessary prior information for the subsequent selection of response measurement technology and the determination of dynamic load identification methods. Secondly, the main measurement techniques, application scenarios, advantages and disadvantages of aircraft structural response are summarized. Then, the research progress of aircraft dynamic load identification method is reviewed. Finally, the main challenges and future development trends in the field of dynamic load characteristics, measurement and identification of aircraft structures are discussed.

Key words: aircraft, load identification, response measurement, load cognition, structural design

CLC Number: