文章摘要
Simulation of Tire Stiffness Characteristics during Tire Blow-out Based on LS-DYNA
Received:September 22, 2018  Revised:September 22, 2018
DOI：10.12136/j.issn.1000-890X.2019.06.0461
Key Words: tire；blow-out process；stiffness characteristics；inflation pressure；finite element analysis
Author NameAffiliationE-mail
CAI Yongzhou* Automotive Research & Development Center，Guangzhou Automobile Group Co.，Ltd cyzh0319@126.com 
ZENG Fanlin Automotive Research & Development Center，Guangzhou Automobile Group Co.，Ltd  
OUYANG Jun Automotive Research & Development Center，Guangzhou Automobile Group Co.，Ltd  
ZANG Mengyan South China University of Technology  
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Abstract:
      Based on nonlinear finite element analysis software LS-DYNA，using shell element model to simulate cord-rubber composite materials，the finite element model of 215/60R16 radial tire was established，and the tire blow-out process was simulated by different inflation pressure.Under different inflation pressure，the tire deformation at vertical，transverse and longitudinal load was analyzed.The results showed that the stiffness of tire declined sharply with the decrease of inflation pressure，and the vertical，transverse and longitudinal stiffness were reduced to about 30%，38% and 40% of normal inflation pressure after tire blow-out，respectively.The three-dimensional stiffness variation characteristics of tire under different inflation pressures obtained in this study could provide a basis for the dynamic response and handling stability analysis of tire blow-out vehicl.
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