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The Study on PRAT Performance due to Tire Pattern Shapes using Steady State Rolling Analysis Method  

Sung, Ki-Deug (R&D Center, Nexen Tire Co.)
Park, Hyun-Man (R&D Center, Nexen Tire Co.)
Koo, Byong-Kook (R&D Center, Nexen Tire Co.)
Cho, Choon-Tack (R&D Center, Nexen Tire Co.)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.16, no.5, 2008 , pp. 15-21 More about this Journal
Abstract
It is generally known that the PRAT(Plysteer Residual Aligning Torque) is one of indicating a performance factors of a tire for assessing the vehicle pull, also tire pattern shape, which means lateral groove angle, is very important tire design factor in relation to the PRAT. Lateral grooves of tire pattern are widely divided into center and shoulder parts. So, this paper has studied the correlation between the PRAT and their lateral groove angles using FEM. Especially, the steady state rolling analysis among tire rolling analysis methods has been used for the PRAT performance study. Firstly, analysis result data have been compared with the experimental data to validate FE analysis for PRAT. Next, the PRAT due to the lateral groove angle about PCR(Passenger Car Radial) tire and SUV tire has been analyzed. The tendency of the PRAT due to the lateral groove angles can be used as a guide line for the tire design in relation to vehicle pull.
Keywords
Steady state rolling analysis; Vehicle pull; Slip angle; Lateral force; Aligning torque; PRAT(Plysteer Residual Aligning Torque); Lateral groove angle;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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