物流车座椅减振器双向比对人-椅冲击动力学行为的影响

doi:10.13190/j.jbupt.2018-051

北京邮电大学学报 ›› 2018, Vol. 41 ›› Issue (6): 14-19.doi: 10.13190/j.jbupt.2018-051

物流车座椅减振器双向比对人-椅冲击动力学行为的影响

赵雷雷¹, 于曰伟², 周长城², 杨福兴¹

1. 北京邮电大学自动化学院, 北京 100876;
2. 山东理工大学交通与车辆工程学院, 山东淄博 255000

收稿日期:2018-03-01 出版日期:2018-12-28 发布日期:2018-12-24
作者简介:赵雷雷(1982-),男,博士生,E-mail:zhaoleilei611571@163.com;周长城(1962-),男,教授,博士生导师.
基金资助:
国家自然科学基金项目（51575325）；北京邮电大学优秀博士研究生创新基金项目（CX2016206）

Effect of Seat Damper Bidirectional Ratio on Impact Dynamic Behaviors of Human-Seat for Logistic Vehicles

ZHAO Lei-lei¹, YU Yue-wei², ZHOU Chang-cheng², YANG Fu-xing¹

1. School of Automation, Beijing University of Posts and Telecommunications, Beijing 100876, China;
2. School of Transportation and Vehicle Engineering, Shandong University of Technology, Shandong Zibo 255000, China

Received:2018-03-01 Online:2018-12-28 Published:2018-12-24

摘要/Abstract

摘要： 为探明减振器双向比对人-椅系统冲击动力学行为的影响规律，基于台架试验将座椅减振器阻尼特性简化为非对称分段线性函数，进而创建了人-椅非线性动力学模型及方程，并通过座椅台架试验验证了其有效性.以典型脉冲输入模拟座椅受到的垂向冲击，对不同强度脉冲激励工况、不同减振器双向比情况下的人-椅冲击动力学行为进行数值仿真.结果表明，当座椅减振器双向比大于1时，更有利于衰减驾驶室地板传递到驾乘人员的冲击；而且冲击输入强度越大，座椅减振器双向比大于1时的相对隔振效果越好.

关键词: 物流车, 座椅, 减振器, 双向比

Abstract: To ascertain the damper bidirectional ratio effect on the impact dynamic behavior of the human-seat system, the most widely used X-type seat is taken as the research object. Based on the measured data by the damper bench, the damper damping characteristic of the seat is simplified as an asymmetric piecewise linear function. A nonlinear dynamic model for the human-seat was proposed and its equation was created and validated by seat test. Based on the model and the equation, taking a typical pulse with different intensity as inputs, numerical simulations were carried out under different bidirectional ratios. It is shown that when the seat damper bidirectional ratio is larger than 1, it becomes more conducive to attenuate the impact on drivers, and the greater the impact input intensity is, the better the relative isolation effect is.

Key words: logistic vehicles, seat, damper, bidirectional ratio

中图分类号:

U463

赵雷雷, 于曰伟, 周长城, 杨福兴. 物流车座椅减振器双向比对人-椅冲击动力学行为的影响[J]. 北京邮电大学学报, 2018, 41(6): 14-19.

ZHAO Lei-lei, YU Yue-wei, ZHOU Chang-cheng, YANG Fu-xing. Effect of Seat Damper Bidirectional Ratio on Impact Dynamic Behaviors of Human-Seat for Logistic Vehicles[J]. JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM, 2018, 41(6): 14-19.

参考文献

[1] Crizzle A M, Bigelow P, Adams D, et al. Health and wellness of long-haul truck and bus drivers:a systematic literature review and directions for future research[J]. Journal of Transport and Health, 2017, 7:90-109.
[2] Zhou Zhen, Griffin M J. Response of the seated human body to whole-body vertical vibration, discomfort caused by sinusoidal vibration[J]. Ergonomics, 2014, 57(5):714-732.
[3] Deboli R, Calvo A, Preti C. Whole-body vibration:measurement of horizontal and vertical transmissibility of an agricultural tractor seat[J]. International Journal of Industrial Ergonomics, 2017, 58:69-78.
[4] 周长城, 潘礼军, 于曰伟, 等. 车辆钢板弹簧悬架系统减振器最佳阻尼匹配[J]. 农业工程学报, 2016, 32(7):106-113. Zhou Changcheng, Pan Lijun, Yu Yuewei, et al. Optimal damping matching for shock absorber of vehicle leaf spring suspension system[J]. Transactions of the Chinese Society of Agricultural Engineering, 2016, 32(7):106-113.
[5] Tufano S, Griffin M 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(1):122-138.
[6] Ksiazek M A, Ziemianski D. Optimal driver seat suspension for a hybrid model of sitting human body[J]. Journal of Terramechanics, 2012, 49(5):255-261.
[7] Zhao Leilei, Zhou Changcheng, Yu Yuewei, et al. Hybrid modelling and damping collaborative optimisation of five-suspensions for coupling driver-seat-cab system[J]. Vehicle System Dynamics, 2016, 54(5):667-688.
[8] Rajalingham C, Rakheja S. Influence of suspension damper asymmetry on vehicle vibration response to ground excitation[J]. Journal of Sound and Vibration, 2003, 266(5):1117-1129.
[9] Silveira M, Jr Pontes B R, Balthazar J M. Use of nonlinear asymmetrical shock absorber to improve comfort on passenger vehicles[J]. Journal of Sound and Vibration, 2014, 333(7):2114-2129.
[10] Silveira M, Wahi P, Fernandes J C M. Effects of asymmetrical damping on a 2 DOF quarter-car model under harmonic excitation[J]. Communications in Nonlinear Science and Numerical Simulation, 2017, 43:14-24.
[11] Zhao L L, Yang F X, Yu Y W, et al. Influence of shock absorber asymmetry on vibration responses of seat-occupant system under impact condition[C]//2017 International Conference on Modelling, Identification and Control(ICMIC 2017). New York:IEEE Press, 2017:394-399.
[12] 长春汽车研究所. QC/T 545-1999. 汽车筒式减振器台架试验方法[S]. 1999.

物流车座椅减振器双向比对人-椅冲击动力学行为的影响

Effect of Seat Damper Bidirectional Ratio on Impact Dynamic Behaviors of Human-Seat for Logistic Vehicles

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 1

编辑推荐

Metrics

本文评价