Enhanced ride comfort using nonlinear seat suspension with high-static-low-dynamic stiffness

被引：5
作者：
Cheng C. [1 ]
Hu Y. [1 ]
Ma R. [1 ]
机构：
[1] School of Mechatronic Engineering, Jiangsu Normal University, Xuzhou
来源：
Cheng, Chun (ccheng@jsnu.edu.cn) | 1600年 / SAGE Publications Inc., United States卷 / 51期
基金：
中国国家自然科学基金;
关键词：
high-static-low-dynamic stiffness; low-frequency vibration; ride comfort; Seat suspension;
D O I：
10.1177/0957456520901356
中图分类号：
学科分类号：
摘要：
To attenuate the low-frequency vibration transmitted to the driver, a nonlinear seat suspension with high-static-low-dynamic stiffness is designed. First, the force and stiffness characteristics are derived. The nonlinear suspension can achieve the quasi-zero stiffness at the static equilibrium position when the structural parameters are properly designed. Then, a car-seat-human coupled model which consists of a quarter car model, a seat suspension, and a 4 degree-of-freedom human model is established to predict the biodynamic response of the driver. Finally, the isolation performance of the high-static-low-dynamic stiffness seat suspension under two typical road excitations is evaluated separately based on the numerical method. The effects of stiffness ratio, damping ratio, and vehicle speed on the ride comfort are investigated. The results showed that the nonlinear seat suspension outperforms the equivalent linear counterpart and can achieve the best ride comfort when the quasi-zero stiffness condition is satisfied. © The Author(s) 2020.
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页码：63 / 76
页数：13
相关论文
共 30 条
  • [1] Lee C.M., Goverdovskiy V.N., Temnikov A.I., Design of springs with “negative” stiffness to improve vehicle driver vibration isolation, J Sound Vib, 302, pp. 865-874, (2007)
  • [2] Ning D., Sun S., Zhang J., Et al., An active seat suspension design for vibration control of heavy-duty vehicles, J Low Freq Noise Vibr Act Control, 35, pp. 264-278, (2016)
  • [3] Alfadhli A., Darling J., Hillis A.J., The control of an active seat with vehicle suspension preview information, J Vib Control, 24, pp. 1412-1426, (2018)
  • [4] Du X., Yu M., Fu J., Et al., H∞ control for a semi-active scissors linkage seat suspension with magnetorheological damper, J Intell Mater Syst Struct, 30, pp. 708-721, (2019)
  • [5] Ibrahim R.A., Recent advances in nonlinear passive vibration isolators, J Sound Vib, 314, pp. 371-452, (2008)
  • [6] Carrella A., Brennan M.J., Waters T.P., Et al., Force and displacement transmissibility of a nonlinear isolator with high-static-low-dynamic-stiffness, Int J Mech Sci, 55, pp. 22-29, (2012)
  • [7] Huang X., Liu X., Sun J., Et al., Vibration isolation characteristics of a nonlinear isolator using Euler buckled beam as negative stiffness corrector: a theoretical and experimental study, J Sound Vib, 333, pp. 1132-1148, (2014)
  • [8] Zhou J., Wang X., Xu D., Et al., Nonlinear dynamic characteristics of a quasi-zero stiffness vibration isolator with cam-roller-spring mechanisms, J Sound Vib, 346, pp. 53-69, (2015)
  • [9] Cheng C., Li S., Wang Y., Et al., On the analysis of a high-static-low-dynamic stiffness vibration isolator with time-delayed cubic displacement feedback, J Sound Vib, 378, pp. 76-91, (2016)
  • [10] Shan Y., Wu W., Chen X., Design of a miniaturized pneumatic vibration isolator with high-static-low-dynamic stiffness, J Vib Acoust, 137, 4, (2015)
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