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Correlative Analysis of Hydraulic Bushing of Suspension Control Arm and Full Vehicle Ride Comfort |
GAO Jin, NIU Zi-ru, YANG Xiu-jian, ZHANG Kun |
School of Transportation Engineering, Kunming University of Science and Technology, Kunming Yunnan 650500, China |
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Abstract To analyze and compare the vehicle performance effects of hydraulic bushings with those of the traditional rubber bushings of double wishbone front suspensions, we test the static and dynamic properties of the hydraulic bushings of control arms. The mechanical model is built in ADAMS and is then used as basis for establishing the full vehicle model. The random road surface spectra of different levels are built by using the harmony superposition method. The ride comfort of the full vehicle with a control arm installed with hydraulic and rubber bushings is simulated on random and bump roads. The frequency spectrum characteristic and root mean square (RMS) of the vertical and longitudinal acceleration of the foot floor and seat rail are calculated via power spectrum estimation, and the handling stability of the full vehicle is then simulated. The effects of the change in hydraulic bushing stiffness on ride comfort are finally analyzed. The following results are obtained. (1) The effects of such change on vehicle handling are relatively small regardless of the type of bushing used. (2) The vehicle shows acceptable ride comfort on level A and level B roads but shows poor ride comfort on bump road when a hydraulic bushing is used. (3) Large hydraulic bushing stiffness increases the vertical acceleration RMS on level A, level B, and bump roads. However, the variety of RMS is extremely small on level D roads, the responses of the vertical and longitudinal acceleration curves are slow, and the time oscillation of the curves is relatively long on bump road.
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Received: 08 June 2015
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Fund:Supported by the National Natural Science Foundation of China (No.51465023); the Natural Science Research Foundation of Kunming University of Science and Technology(No.KKSY201402065) |
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[1] MA Tian-fei, LIU Ya-zhou, QIAO Xue-bing, et al. Fluid-Structure-interaction Modeling and Dynamic Behavior Analysis for Hydrobushing of Suspension[J]. China Mechanical Engineering, 2013, 24(7):857-860. (in Chinese)
[2] KARLSSON F, PERSSON A. Modeling Non-linear Dynamics of Rubber Bushings:Parameters Identification and Validation[D]. Lund, Sweden:Lund University, 2003.
[3] SCENSSON M, HAKANSSON M. Hydrobushing Model for Mutibody Simulation[D]. Lund, Sweden:Lund University, 2004.
[4] PAN Xiao-yong, XIE Xin-xing, SHANGGUAN Wen-bin. Dynamic Properties Analysis for a Hydraulic Rubber Isolator under Excitations with Difference Amplitudes[J]. Journal of Vibration and Shock, 2012, 31(1):144-149. (in Chinese)
[5] SHANGGUAN Wen-bin, XU Chi. Experiment and Calculation Methods for Analyzing Dynamic Performance of Hydraulic Bushings Used in Control Arms of a Suspension[J]. Journal of Vibration and Shock, 2007, 26(9):7-10. (in Chinese)
[6] LÜ Zhen-hua, SHANGGUAN Wen-bin, LIANG Wei, et al. Experimental Methods and Test Evaluation for the Dynamic Characteristics of Hydraulically Damped Rubber Mount[J]. China Mechanical Engineering, 2004, 15(2):182-186. (in Chinese)
[7] LI Zhong-xing,YU Guang-qiang,JIANG Hong,et al. Simulation and Test of Ride Comfort of Bus with Air Suspension Based on ADAMS[J]. Journal of Highway and Transportation Research and Development, 2010, 27(2):125-128.(in Chinese)
[8] LI Wei-ming, ZHU Hong-ping, HUANG Min-yong, et al. Numerical Calculation Methods and Statistic Characters on Road Surface Random Spectral Excitation[J]. China Journal of Highway and Transport, 2009, 22(3):20-25.(in Chinese)
[9] ZHANG Yi, MO Xu-hui, ZHONG Zhi-hua, et al. Research and Optimization of Ride Comfort for Rhombic Bus under Random Road[J]. China Mechanical Engineering, 2011, 22(23):2894-2895.(in Chinese)
[10] LI L, SANDU C. Modeling and Simulation of 2D ARMA Terrain Models for Vehicle Dynamics Application.[DB/OL]. (2007-04-16)[2014-06-06]. Http://papers.sae.org/2007-01-0138.
[11] KANG D, HEO S, KIM H. Virtual Road Profile Modeling Using Equivalent Damage Method for VPG Simulation[DB/OL]. (2009-04-20)[2014-06-06]. Http://papers.sae.org/2009-01-0814.
[12] YAND Yi-ming, WEN Ai-min, LIU Yi-guan. Reconstruction of 3D Road Model and Its Verification Based on Adams[J]. Journal of Highway and Transportation Research and Development, 2010, 27(12):141-144. (in Chinese)
[13] ZHOU Chang-feng, LI Yan-xiao, LIU Jia, et al. Ride Comfort Simulation of Vehicle on Impulse Road Based on ADAMS[J]. Tractor & Farm Transporter, 2012, 39(2):22-25.(in Chinese)
[14] XUE Jin-lu, WANG Hong-yan, CHI Bao-shan. Stochastic 3D-road-surface Modeling for Virtual Testing[J]. Chinese Journal of Construction Machinery, 2012, 10(2):238-239.(in Chinese)
[15] GAO Jin, YANG Xiu-jian. Sensitivity Study of Bushing Stiffness Affecting Suspension Compliance Characteristic and Transient Handing Stability[J]. Automotive Technology, 2013(11):36-37.(in Chinese) |
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