飞机柔性对前起落架摆振的影响分析

Abstract

Abstract: The dynamics of nose landing gear shimmy is studied in this paper with a certain type of aircraft. Based on the multi-body dynamics theory,a dynamics model of shimmy is developed which takes into consideration the flexibility of nose landing gear and airframe by means of the component mode synthesis method,to investigate the stability of shimmy. The model is verified with the data of static tests and mode tests. Diagrams of the stable region are presented accordingly,formed by the taxiing speed and critical anti-shimmy damping coefficients,to explore the influence of the movement and flexibility of the airframe. The result shows that,the initial angle of nose wheel contributes little to shimmy analysis. A simplified method,which replaces the flexibility of the nose landing gear by the connection stiffness between the nose landing gear and airframe,is not accurate enough and can only be applied to qualitative analysis. The movement of the rigid airframe exerts little influences on the critical damping coefficient. However,the flexibility of the airframe has considerable influence and it may increase the critical damping coefficient by 12.1% on the average at mid and high speeds.

Key words: landing gear, shimmy, movement of rigid airframe, flexibility of airframe, dynamics

CLC Number:

V216.2⁺2

FENG Fei, CHANG Zheng, NIE Hong, ZHANG Ming, PENG Yiming. Analysis of Influence of Aircraft Flexibility on Nose Landing Gear Shimmy[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2011, 32(12): 2227.

References

[1] Pritchard J. An overview of landing gear dynamics. NASA/TM-1999-209143, 1999.

[2] Stefania G, Marco M, Gian L G. Anti-skid induced aircraft landing gear instability[J]. Aerospace Science and Technology, 2008, 12(8): 627-637.

[3] 诸德培. 摆振理论及防摆措施[M]. 北京: 国防工业出版社, 1984: 2-4, 20-24. Zhu Depei. Shimmy theory and anti-shimmy measure[M]. Beijing: National Defense Industry Press, 1984: 2-4, 20-24. (in Chinese)

[4] 王学军, 乔新. 前轮非线性摆振稳定性分析[J]. 南京航空航天大学学报, 1992, 24(1): 9-18. Wang Xuejun, Qiao Xin. The stability analysis of the nonlinear shimmy[J]. Journal of Nanjing Aeronautical Institute, 1992, 24(1): 9-18. (in Chinese)

[5] Gerhard S. Shimmy analysis of a simple aircraft nose landing gear model using different mathematical methods[J]. Aerospace Science and Technology, 1997, 8(1): 545-555.

[6] Fong A, Eng P. Shimmy analysis of a landing gear system//ADAMS International User Conference. 1995.

[7] Chris H. Preliminary nose landing gear shimmy using MSC.ADAMS aircraft//MSC.ADAMS North American User Conference. 2002.

[8] 张明, 聂宏, 朱如鹏, 等. 基于虚拟样机技术的飞机地面运动多学科协同仿真[J]. 中国机械工程, 2010, 21(10): 1194-1199. Zhang Ming, Nie Hong, Zhu Rupeng, et al. Multi-disciplinary collaborative simulation of aircraft ground maneuvers based on virtual prototype technology[J]. China Mechanical Engineering, 2010, 21(10): 1194-1199. (in Chinese)

[9] 王学军. 飞机前轮摆振稳定性分析. 南京: 南京航空航天大学航空宇航学院, 1991. Wang Xuejun. The stability analysis of aircraft landing gear shimmy. Nanjing: College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, 1991. (in Chinese)

[10] 万晓峰. LMS Virtual.Lab Motion入门与提高[M]. 西安: 西北工业大学出版社, 2010: 33. Wan Xiaofeng. LMS Virtual.Lab Motion approach and enhance[M]. Xi'an: Northwestern Polytechnical University Press, 2010: 33. (in Chinese)

[11] 周福亮. 飞机起落架摆振稳定性仿真分析研究. 南京: 南京航空航天大学航空宇航学院, 2008. Zhou Fuliang. Study on the shimmy stability of aircraft landing gear. Nanjing: College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, 2008. (in Chinese)

[12] Johnson K L. Contact mechanics[M]. Cambridge: Cambridge University Press, 1985.

[13] 飞机设计手册总编委会. 飞机设计手册14: 起飞着陆系统设计[M]. 北京: 航空工业出版社, 2002: 95-102. Committee of Aircraft Design Manual. Aircraft design manual Book 14: taking-off and landing devices design [M]. Beijing: Aviation Industry Press, 2002: 95-102. (in Chinese)

[14] Smiley B F, Horne W B. Mechanical properties of pneumatic tires with special reference to modern aircraft tires. Horne NACA-TN-4110, 1958.

[15] 国防科学技术工业委员会. GJB 5097—2002. 飞机前起落架防摆设计要求[S]. 2002. The Commission of Science, Technology and Industry for National Defense. GJB 5097—2002. Design requirement of anti-shimmy for nose landing gear of aircraft[S]. 2002. (in Chinese)

Analysis of Influence of Aircraft Flexibility on Nose Landing Gear Shimmy

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments

[1]	Chongchong LIU, Xiaochuan LIU, Yong XU, Xiao LI, Shengli LIU. Bifurcation characteristics and parameter coupling mechanisms of landing gear systems [J]. Acta Aeronautica et Astronautica Sinica, 2026, 47(8): 232725-232725.
[2]	Junlin ZHANG, Tielin MA, Jingcheng FU, Zhiyao LIU. Structural and dynamic analysis of airborne towed detection coil array system [J]. Acta Aeronautica et Astronautica Sinica, 2026, 47(8): 232673-232673.
[3]	Yaobing ZHANG, Ming LI, Jian ZHANG, Naichun ZHOU, Xiaoquan GONG. An improved line-implicit BLU-SGS iteration algorithm for unstructured hybrid grids [J]. Acta Aeronautica et Astronautica Sinica, 2026, 47(6): 132588-132588.
[4]	Mingsong DING, Yong XU, Tao JIANG, Qingzong LIU, Peng LI. Magnetohydrodynamics control of turbulent boundary layer separation with low electric field [J]. Acta Aeronautica et Astronautica Sinica, 2026, 47(6): 132481-132481.
[5]	Jiayi LI, Haiqing SI, Hao DONG, Jingxuan QIU, Tianyu XIA. Verification and validation of deep dynamic stall numerical simulation method [J]. Acta Aeronautica et Astronautica Sinica, 2026, 47(6): 132671-132671.
[6]	Youzheng YU, Jiaqing KOU, Weiwei ZHANG. A generative adversarial network based method for aerodynamic configuration design of general aviation aircraft [J]. Acta Aeronautica et Astronautica Sinica, 2026, 47(6): 132518-132518.
[7]	Zihao WANG, Wanxiang WANG, Chenglong WU, Junyu SHAN, Shuai YUE, Zhonghua DU, Lei ZHAO. Buffering characteristics and parameter influence of launch canister of space launch devices [J]. Acta Aeronautica et Astronautica Sinica, 2026, 47(4): 232328-232328.
[8]	Ruiqi HAN, Fei XU, Cheng CHEN, Zhanpeng REN, Hui ZHANG. Molecular dynamics simulation of stress and temperature effects on supercooled water freezing [J]. Acta Aeronautica et Astronautica Sinica, 2026, 47(4): 232342-232342.
[9]	Feihang NIU, Qiaozhi YIN, Xiaohui WEI, Weihua LIANG, Hong NIE. Buffering method of bio-inspired landing gear based on active compliance control [J]. Acta Aeronautica et Astronautica Sinica, 2026, 47(1): 632001-632001.
[10]	Kai CUI, Zesen WANG, Yao XIAO, Zhongwei TIAN, Guangli LI, Siyuan CHANG. A novel wide-speed-range configuration based on high-pressure capturing wing concept and its transonic aerodynamic characteristics [J]. Acta Aeronautica et Astronautica Sinica, 2026, 47(1): 632102-632102.
[11]	Xiaofeng YANG, Xingkao CAI, Lei LIU, Dong WEI, Guangming XIAO, Yanxia DU, Yewei GUI. Coupling simulation of aircraft aerothermodynamics regulated by gradient characteristics of thermal protection structure and its experimental verification [J]. Acta Aeronautica et Astronautica Sinica, 2025, 46(9): 130888-130888.
[12]	Pengqian YANG, Yutong CHEN, Junhui LIU, Jiehao YANG, Jiayuan SHAN, Shijun SUN. Aerodynamic and operational characteristics analysis for tandem wing cargo UAV at high angle of attack [J]. Acta Aeronautica et Astronautica Sinica, 2025, 46(9): 131056-131056.
[13]	Yunwen FENG, Da TENG, Cheng LU, Rui WANG, Junyu CHEN. Integrated mechanism and generative adversarial surrogate modeling for aircraft systems reliability evaluation [J]. Acta Aeronautica et Astronautica Sinica, 2025, 46(7): 230948-230948.
[14]	Hongqiang LYU, Tiancheng TANG, Chenyu BAO. Numerical simulation of fluid-solid conjugate natural convection heat transfer based on SPH method [J]. Acta Aeronautica et Astronautica Sinica, 2025, 46(5): 531185-531185.
[15]	Dongping JIN, Dingfeng DING, Lin WU, Hao WEN, Xiaotong ZHANG, Jialiang SUN. Key technologies and prospects for separation dynamics of stacked satellite systems [J]. Acta Aeronautica et Astronautica Sinica, 2025, 46(5): 531342-531342.