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Volume 31 Issue 12
Dec.  2005
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Journal of Beijing University of Aeronautics and Astronautics  > 2005  >  31(12): 1358-1362.
HUANG Jun, HUAI Jin-peng, WU Zheet al. Optimization Selection in Conceptual Design of Advanced Trainer Aircraft[J]. Journal of Beijing University of Aeronautics and Astronautics, 2002, 28(6): 656-659. (in Chinese)
Citation: Xiang Jinwu, Yang Dongmei. Influence of damping characteristics to landing gear shimmy[J]. Journal of Beijing University of Aeronautics and Astronautics, 2005, 31(12): 1358-1362. (in Chinese)
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Influence of damping characteristics to landing gear shimmy

  • School of Aeronautic Science and Technology, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

  • Received Date: 30 Nov 2004
  • Publish Date: 31 Dec 2005
    Abstract
  • A linear shimmy analysis model was used ,which includes the elasticity of strut, the elasticity of damper linkage system, tire deflection, structure weight, vertical loads and wheel gyroscopic couple. With the method of sensitivity analysis,research on tire-yaw shimmy and structural-torsion shimmy was made separately. The three key landing gear structural parameters including trail, bending stiffness and torsional stiffness of damper linkage on aircraft wheel shimmy were investigated thoroughly. The investigation took the coupling effects among different parameters into consideration and calculated the sensitivity of damping to parameters’ variety ,and the effects of damping characteristics to shimmy was attained. The results supply a new idea for the design of aircraft and for the safe maintenance of operational ones to prevent the occurrence of shimmy.

     

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    • References(1)
  • [1]   Collins R L, Black R J. Tire parameters for landing gear shimmy studies[J]. Journal of Aircraft, 1969,6(3):252~258 [2]   诸德培.摆振理论及防摆措施[M].北京:国防工业出版社,1984 Zhu Depei. Shimmy theory and preventing measure[M].Beijing:National Defence Industry Press,1984(in Chinese) [3]   Miroslav D. Analysis of influence of design parameters on steered wheels shimmy of heavy vehicles[J].Vehicle System Dynamics,1996,26(5):343~379 [4]   周进雄.线性及非线性摆振研究 .西安:西北工业大学飞机系,2002 Zhou Jinxiong. Linear and nonlinear shimmy study . Xian:Department of Aircraft Engineering, Northwestern Polytechnical University,2002(in Chinese) [5]  Gerhard S. Shimmy analysis of a simple aircraft nose landing gear model using different mathematical methods[J].AerospaceScience and Technology,1997,1(8):545~555 [6]  Kim Myung-Gyu, Jeong Ho-Il, Yoo Wan-Suk . Sensitivity analysis of chassis system to improve shimmy and brake judder vibration on steering wheel . SAE,1996,(Supplement):59
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