Journal of South China University of Technology(Natural Science) >

2018 , Vol. 46 >Issue 2: 59 - 64,87

DOI: https://doi.org/10.3969/j.issn.1000-565X.2018.02.009

Mechanical Engineering

A Study on Methods for Measuring Natural Frequency of Ｒubber Damped Dynamic Vibration Absorber
 

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  •  1． School of Traffic and Transportation Engineering，Central South University，Changsha 410075，Hunan，China; 2． School of Mechanical and Automotive Engineering，South China University of Technology，Guangzhou 510640，Guangdong，China
李利平( 1981-) ，女，博士生，主要从事汽车振动与控制研究

Received date: 2017-07-20

  Revised date: 2017-09-25

  Online published: 2018-01-02

Supported by

Supported by the National Natural Science Foundation of China( 11472107) 

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Abstract

 Because the dynamic stiffness of a rubber component depends on the excitation amplitude and the excitation frequency，the influence of excitation methods and excitation values on the natural frequency of a rubber damped DVA is studied in this paper． In general，the natural frequency of the DVA is only considered frequencydependent，ignoring the amplitude correlation． The natural frequency of a rubber damped DVA is measured and compared under excitations of constant amplitude，constant acceleration，random acceleration，pulse excitation from a shaker and force hammer percussion，respectively． It is concluded that the measured natural frequency using force hammer excitation method does not well characterize the natural frequency of the dynamic vibration absorber in generic applications． The test method of the natural frequency of the dynamic vibration absorber described in this paper can provide the basis for the measuring natural frequency of a rubber damped DVA under the actual vibration condition． 

Key words： rubber damped dynamic vibration absorber; natural frequency; vibration table excitation; force hammer excitation 

Cite this article

LI Liping LU Zhaijun QIN Wu QIU Yinyuan LIU Xiaoang SHANGGUAN Wenbin .

A Study on Methods for Measuring Natural Frequency of Ｒubber Damped Dynamic Vibration Absorber
 
[J]. Journal of South China University of Technology(Natural Science), 2018 , 46(2) : 59 -64,87 . DOI: 10.3969/j.issn.1000-565X.2018.02.009

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