导航

Acta Aeronautica et Astronautica Sinica ›› 2025, Vol. 46 ›› Issue (5): 531229.doi: 10.7527/S1000-6893.2024.31229

• Solid Mechanics and Vehicle Conceptual Design • Previous Articles    

Research progress on nonlinear dynamic stability of aircraft landing system

Hong NIE1,2(), Xiaohui WEI1,2, Ming ZHANG1,2, Yin YIN1,2, Qiaozhi YIN1,2, Yong WANG3   

  1. 1.School of Aeronautics,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China
    2.State Key Laboratory of Mechanics and Control for Aerospace Structures,Nanjing 210016,China
    3.Automotive Engineering Research Institute,Jiangsu University,Zhenjiang 212013,China
  • Received:2024-09-18 Revised:2024-10-28 Accepted:2024-12-25 Online:2025-01-16 Published:2025-01-16
  • Contact: Hong NIE E-mail:hnie@nuaa.edu.cn
  • Supported by:
    National Natural Science Foundation of China(52172368);Natural Science Foundation of Jiangsu Province(BK20220135);Research Fund of State Key Laboratory of Mechanics and Control for Aerospace Structures (Nanjing University of Aeronautics and astronautics)(MCAS-I-0224G03);Spring Sunshine Program initiated by the Ministry of Education of China(HZKY20220126)

Abstract:

The issue of nonlinear dynamic stability in aircraft landing system has consistently posed a significant challenge in the design of both aircraft and landing gear systems, involving complex geometric nonlinearity, physical nonlinearity, and their interactions. Although the traditional time domain analysis method can effectively determine the stability, it exhibits limitation of high computational load in analyzing parameter influences and in achieving rapid and accurate parametric design. In recent years, the numerical continuation method has been widely applied in the field of nonlinear dynamic stability analysis of the landing system. This method enables rapid and precise analysis of the stability variation of the dynamic model with parameters, thereby significantly enhancing the design efficiency of aircraft and landing gear. Firstly, this paper describes the methods of dynamic stability, bifurcation analysis, and continuation calculation. Then, according to the functional classification of the landing system, the research status of the shimmy stability, taxiing direction stability, and retraction mechanism stability of the landing gear are summarized. The application research of bifurcation analysis methods and nonlinear dynamic stability based on the numerical continuation method in landing gear systems is mainly discussed. Finally, the research on the shimmy stability, taxiing direction stability, and retraction mechanism stability of aircraft landing gear is summarized and prospected.

Key words: landing gear, nonlinear dynamics, stability, bifurcation, numerical continuation method

CLC Number: