吉林大学学报(工学版) ›› 2014, Vol. 44 ›› Issue (4): 939-945.doi: 10.13229/j.cnki.jdxbgxb201404007

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Theory and experiment of damping characteristics of hydraulic electromagnetic energy-regenerative shock absorber

FANG Zhi-gang1, GUO Xue-xun1, ZUO Lei2, XU Lin1, ZHANG Han1   

  1. 1.Hubei Key Laboratory of Advanced Technology of Automotive Parts, Wuhan University of Technology, Wuhan 430070, China;
    2.Department of Mechanical Engineering, State University of New York at Stony Brook, Stony Brook 11794, USA
  • Received:2013-01-30 Online:2014-07-01 Published:2014-07-01

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Abstract: A simplified model of Hydraulic Electromagnetic energy-regenerative Shock Absorber (HESA) was proposed. The pressure drop of the hydraulic circuit was analyzed from the loss in the hydraulic rectifier, the hydraulic motor and pipeline. The theoretical damping force of HESA was deduced. A HESA prototype was manufactured, the corresponding test bench was built. The experiment of the prototype was carried out, and the experimental data was compared with the theoretical data. Results indicate that, under the condition of excitation frequency of 1.67 Hz and excitation amplitude of 12.5 mm, the experimental damping force of HESA is in good agreement with the theoretical value. The deviation of the experimental data from the theoretical value increases with the amplitude. The deviation of the experimental data from the theoretical value in the compression stroke is smaller than that in the extension stroke.

Key words: vehicle engineering, regenerative shock absorber, vibration analysis, damping characteristic

CLC Number: 

  • U461.4
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