The calculation and analysis for the effective stiffness and damping rate of the scissor type seat suspension

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Journal of Vibration and Shock ›› 2016, Vol. 35 ›› Issue (19) : 38-44.

Yijie Shui1,Subhash Rakheja1,Wenbin Shuangguan1

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Abstract

The equivalent stiffness and the equivalent damping for a seat suspension of scissor type are defined, and the formula for calculating the stiffness and damping are developed and presented. A coupled model with two degree of freedom for seat, seat suspension, and human body is built, and the transfer functions of the system from the seat base to seat or human body are calculated. Based on the developed model and calculation formula, the effect of the sizes of the linkage at seat suspension, location of spring and damper on the stiffness of seated suspension, and the transfer functions are analyzed. The developed model in this paper can be used for the optimizing the stiffness and damping, and transfer functions.

Key words

seat, seat suspension and human body system / equivalent stiffness / equivalent damping rate / transfer function

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Yijie Shui1,Subhash Rakheja1,Wenbin Shuangguan1. The calculation and analysis for the effective stiffness and damping rate of the scissor type seat suspension[J]. Journal of Vibration and Shock, 2016, 35(19): 38-44

References

[1] Xiaoxi Huang, S.Rakheja. Performance Analysis of a Relative Motion Based Magneto-Rheological Damper Controller for Suspension Seats[C]. ASME 2010 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. 2010;4:39-48.
[2] Faisal Shahzad, Yi Qiu. A Nonliear Multi-body Dynamic Model of a Suspension Seat with Occupant Correlated with Experimental Results[C]. Presented at the 47th United Kingdom Conference on Human Responses to Vibration. 2012.
[3] Louis V. Inendino, Mark G. Strauss, Jure V. Medanic. Development of a dynamic model of an air-ride seat for on highway trucks[C]. SAE paper 2003.
[4] Tae-Hyeong Kim, Young-Tae Kim, Yong-San Yoon. Development of a biomechanical model of the human body in a sitting posture with vibration transmissibility in the vertical direction[J]. International Journal of Industrial Ergonomics. 2005;35(9):817-29.
[5] 朱思洪, 王家胜, 王敏娜. 带附加气室空气悬架剪式座椅振动特性试验研究[J]. 振动与冲击. 2009 (11):104-6+206.
       ZHU Si-hong, WANG Jia-sheng, WANG Min-na. Experimental study on vibration characteristics of scissors linkage seat with air suspension attached with auxiliary chamber[J]. Journal of vibration and shock, 2009(11): 104-6+206.
[6] 朱思洪, 朱星星, 马然, 诸葛平. 驾驶员座椅半主动空气悬架系统振动特性实验研究[J]. 振动与冲击. 2013 (15):168-72+83.
       ZHU Si-hong, ZHU Xing-xing, MA Ran. Vibration characteristics of the semi-active air suspension system of driver seat[J]. Journal of vibration and shock, 2013 (15):168-72+83.
[7] S. J. McManus, K. A. St. Clair, P. É Boileau, J. Boutin, S. Rakheja. Evaluation of Vibration and Shock Attenuation Performance of a Suspension Seat with a Semi-Active Magnetorheological Fluid Damper[J]. Journal of Sound and Vibration. 2002;253(1):313-27.
[8] M. Duke, G. Goss. Investigation of Tractor Driver Seat Performance with Non-linear Stiffness and On–off Damper[J]. Biosystems Engineering. 2007;96(4):477-86.
[9] P.-É. Boileau S. Rakheja, Z. Wang, H. Politis. Performance Analysis of Suspension Seats Under High Magnitude Vibration ExcitationsPart 1 Model Development and Validation[J]. Journal of Low Frequency Noise, Vibration and Active Control. 2003;22(4):225-52.
[10] 王岩松, 何辉, 耿艾莉. 车辆-人体系统振动时域模拟及悬架非线性分析[J]. 振动与冲击. 2007 (12):36-9+112+69-70.
        Wang Yan-song, He Hui, Geng Aili. Time-domain simulation of vehicle-human vibration system and analysis of nonlinear susoension[J]. Journal of vibration and shock, 2007 (12):36-9+112+69-70.
[11] Prasad Bhagwan Kumbhar, Peijun Xu, Jingzhou(James) Yang. A Literature of Biodynamic Models for Whole Body Vibration and Vehicle Ride Comfort[C]. ASME 2012 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. 2012.
[12] P.-É. Boileau, S. Rakheja. Whole-body vertical biodynamic response characteristics of the seated vehicle driver_ Measurement and model development[J]. International Journal of Industrial Ergonomics. 1998;22(6):449-72.