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A Study on the Stiffness of a 13degree-type Impact Tester for Aluminum Wheels  

Ko, Kil-Ju (Advanced Material Research Team, R&D Center, Hankook Tire Co.)
Kim, Man-Seob (Advanced Material Research Team, R&D Center, Hankook Tire Co.)
Song, Hyun-Woo (Advanced Material Research Team, R&D Center, Hankook Tire Co.)
Yang, Chang-Geun (Engineering Team, ASA Co.)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.14, no.4, 2006 , pp. 12-19 More about this Journal
Abstract
It is positively necessary to study on the stiffness of a 13degree-type impact tester in order to improve the fracture prediction of impact testing in wheels using FE(finite-element) analysis. The 13degree-type impact tester consists of an impact striker, a wheel fixer, a steel plate, and four cylindrical rubbers. Important parts of the tester are the steel plate and four cylindrical rubbers which play a role of absorbing impact energy during impact testing. Because of these buffers, the RF(reaction force) variation of the lower part in the 13degree-type impact tester showed the tendency like a damped harmony oscillation during impact testing. In order to investigate the stiffness of a 13degree-type impact tester, this work measured each stiffness of a steel plate and cylindrical rubbers. The stiffness of a cylindrical rubber was measured using a compressive tester. On the other hand, the stiffness of a steel plate was predicted by simulating experimental method using FE analysis.
Keywords
Wheel; Stiffness; 13degree-type impact tester; FE analysis; RF; Steel plate; Cylindrical rubber; Compression tester;
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