Deformation Computation of Variable-thickness Throttle Slice of Shock Absorber for Special Vehicle Suspension and Application

doi:10.3901/JME.2017.06.116

Abstract

Abstract:

To meet the requirements of throttle slice stress intensity and damping characteristics for special vehicle, the damper needs to adopt variable-thickness throttle slice. However, there is no accurate deformation analytic computation formula for it. Based on elastic mechanics theory, the general solution of the elastic surface differential equation for the throttle slice on linearity uniform pressure is given. Then, the deformation analytic formula is established. The deformation of the throttle slice at any radius is computed and testified by ANSYS. The results show the value computed is close to that simulated and the relative deviation is not more than 0.27%. With a practical example, by the deformation formula, the variable-thickness throttle slice is designed and validated by test. The test results show the valve designed meets the requirements of stress intensity and stiffness and the deformation analytic computation method is reliable.

Key words: deformation computation, elastic surface differential equation, shock absorber, variable-thickness throttle slice, special vehicle

ZHAO Leilei, ZHOU Changcheng, YU Yuewei. Deformation Computation of Variable-thickness Throttle Slice of Shock Absorber for Special Vehicle Suspension and Application[J]. Journal of Mechanical Engineering, 2017, 53(6): 116-122.

References

[1] 朱学斌，陈喜宝，高炬，等. 超重型特种车辆行驶安全性分析与研究[J]. 导弹与航天运载技术，2006，286(6)：19-23.
ZHU Xuebin，CHEN Xibao，GAO Ju，et al. Study and analysis of running safety for special purpose over-heavy-duty vehicle[J]. Missile and Space Vehicle，2006，286(6)：19-23.
[2] 汪国胜，王哲荣，马国新. 基于仿真的特种车辆方向盘轴向减振器设计研究[J]. 兵工学报，2009，30(3)：1153-1158.
WANG Guosheng，WANG Zherong，MA Guoxin. Research on axis damper of steering wheel of armored vehicle based on simulating[J]. Acta Armanentarii，2009，30(3)：1153-1158.
[3] TUFANO S，GRIFFIN J. Nonlinearity in the vertical transmissibility of seating：the role of the human driver apparent mass and seat dynamic stiffness[J]. Vehicle System Dynamics，2013，51：122-138.
[4] JAMALI A，SHAMS H，FASIHOZAMAN M. Pareto multi-objective optimum design of vehicle-suspension system under random road excitations[J]. P. I. Mech. Eng. K-J Mul.，2014，48：724-735.
[5] MACIEJEWSKI I，KRAYZYNSKI T，MEYER L. Control system synthesis of seat suspensions used for protection of working machine operators[J]. Vehicle System Dynamics，2014，52：1355-1371.
[6] KATE N B，JADHAV T A. Mathematical modeling of an automobile damper[J]. International Journal of Engineering Research，2013，2(7)：467-471.
[7] 周长城，刘瑞军，赵以强. 油气弹簧叠加阀片设计方法及对节流缝隙影响[J]. 兵工学报，2009，30(4)：461-466.
ZHOU Changcheng，LIU Ruijun，ZHAO Yiqiang. Design methods of superposition throttle slices and influence on throttle aperture of hydro-pneumatic spring[J]. Acta Armanentarii，2009，30(4)：461-466.
[8] FERDEK U，LUCZKO J. Modeling and Analysis of a Twin-tube Hydraulic Shock Absorber[J]. Journal of Theoretical and Applied Mechanics，2012，50(2)：627-638.
[9] CUI Y，KURFESS T R，MESSMAN M. Testing and modeling of nonlinear properties of shock absorbers for vehicle dynamics studies[C]//Proceedings of the World Congress on Engineering and Computer Science Vol II WCECS 2010，October 20-22，2010，San Francisco，USA. Newswood and International Association of Engineers，2010，2187(1)：949-954.
[10] 吴英龙，赵华，张国刚. 车辆液压减振器设计理论与仿真[J]. 农业机械学报，2013，44(12)：29-35.
WU Yinglong，ZHAO Hua，ZHANG Guogang. Design and simulation of vehicle shock absorber[J]. Transactions of Chinese Society for Agricultural Machinery，2013，44(12)：29-35.
[11] 马天飞，崔泽飞，张敏敏. 基于AMESim双筒叠加阀片式充气减振器建模与仿真[J]. 机械工程学报，2013，49(12)：123-130.
MA Tianfei，CUI Zefei，ZHANG Minmin. Modeling and simulating of the gas-precharged dual-sleeve shock absorber with multiple valve plates using AMESim[J]. Journal of Mechanical Engineering，2013，49(12)：123-130.
[12] 韦勇，赵亮，康雨. 基于大挠度理论的减振器阀片精确变形模拟和研究[J]. 中国机械工程，2015，26(11)：1556-1561.
WEI Yong，ZHAO Liang，KANG Yu. Accurate simulation and investigation on valve performance of shock absorber based on large deflection theory[J]. China Mechanical Engineering，2015，26(11)：1556-1561.
[13] 周长城，孟婕，田立忠，等. 汽车筒式减振器分段线性特性的建模与仿真[J]. 汽车工程，2010，32(4)：333-338.
ZHOU Changcheng，MENG Jie，TIAN Lizhong，et al. Modeling and simulation for the piecewise linear characteristics of automotive telescopic shock absorber[J]. Automotive Engineering，2010，32(4)：333-338.
[14] 周长城，顾亮. 筒式减振器叠加节流阀片开度与特性试验[J]. 机械工程学报，2007，43(6)：210-215.
ZHOU Changcheng，GU Liang. Superposition throttle-slices opening size and characteristic test of telescope-damper[J]. Chinese Journal of Mechanical Engineering，2007，43(6)：210-215.
[15] 周长城，赵雷雷. 车辆悬架弹性力学解析计算理论[M]. 北京：机械工业出版社，2012.
ZHOU Changcheng，ZHAO Leilei. Analytic calculation theory of vehicle suspension based on elastic mechanics[M]. Beijing：China Machine Press，2012.