Experimental Modal Analysis of the Cab System Based on PolyMAX
[1]ZENG Fa-lin,RUAN Yang,Ll Jian-kang.Experimental Modal Analysis of the Cab System Based on PolyMAX[J].Journal of Zhengzhou University (Engineering Science),2015,36(03):54-58.[doi:10.3969/ j. issn.1671 -6833.2015.03.012]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
36
Number of periods:
2015 03
Page number:
54-58
Column:
Public date:
2015-06-30
- Title:
- Experimental Modal Analysis of the Cab System Based on PolyMAX
- Keywords:
- cab system ; excitation; polyMAX ; modal analysis
- CLC:
- U463.837
- DOI:
- 10.3969/ j. issn.1671 -6833.2015.03.012
- Abstract:
- Idle vibration of automotive cab system is an important part of vehicle NVH performance. In orderto meet the requirements of NVH, the dynamic characteristics of the practical constraints of Roewe 950 cabsystem which consists of air conditioning system assembly,a pedal assembly,steering column assembly,as-sembly,instrument panel console assembly,electrical wiring system are studied using random white noise,pe-riodic scanning incentive,pulse excitation ( hammer) to the modal analysis of the cab system and sub struc-ture,through the PolyMAX algorithm to obtain the first three natural frequencies,damping and mode.Com-parison and analysis of the modal parameters obtained from random white noise excitation is best,and im-proved properties of the sub structure,so as to avoid the excitation frequency of the vehicle.
- References:
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