Dynamics modeling, modal experiment and parameters identification of heavy loaded radial tires considering the coupled feature of tread, sidewall and rim

LIU Zhihao1,GAO Qinhe1,LIU Zhun1, WANG Xu1

Journal of Vibration and Shock ›› 2018, Vol. 37 ›› Issue (6) : 28-35.

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PDF(2466 KB)
Journal of Vibration and Shock ›› 2018, Vol. 37 ›› Issue (6) : 28-35.

Dynamics modeling, modal experiment and parameters identification of heavy loaded radial tires considering the coupled feature of tread, sidewall and rim

  •   LIU Zhihao1,GAO Qinhe1,LIU Zhun1, WANG Xu1
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Abstract

The experimental modal analysis, dynamic modeling and structural parameter identification were employed to research the inplane vibration modes of heavyloaded radial tires with larger flat ratio. The coupled characteristics of flexible tread, distributed sidewall element and rim were investigated by means of the experimental modal analysis. Taking the bending and inflation features of the flexible tread and the inertial force and sectional spring of the sidewall into consideration, the coupled kinematics of flexible tread, distributed sidewall element and rim was modeled. The inplane coupled analytical modal frequency was derived. The structural parameters identification was implemented and the higher order modal frequenies were predicted with the analytic method. The results show that: the flexible tread vibrates in the same/opposite direction with the distributed sidewall within 0-180 Hz and 180-300 Hz respectively ; the modal analysis and kinetics modeling in consideration of the coupled features of flexible tread, distributed sidewall element and rim can accurately characterize the inplane vibration features of heavy loaded tires within the frequency band of 300 Hz. 

Key words

 Tire dynamics / heavy loaded radial tire / coupled feature of flexible tread, distributed sidewall element and rim / Euler beam / Experimental modal analysis / parameters identification

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LIU Zhihao1,GAO Qinhe1,LIU Zhun1, WANG Xu1. Dynamics modeling, modal experiment and parameters identification of heavy loaded radial tires considering the coupled feature of tread, sidewall and rim[J]. Journal of Vibration and Shock, 2018, 37(6): 28-35

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