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Modeling of Non-linear Leaf Spring for Commercial Vehicle  

유승환 (전남대학교 기계공학과 대학원)
김영배 (전남대학교 기계공학과)
Publication Information
Korean Journal of Computational Design and Engineering / v.7, no.1, 2002 , pp. 1-8 More about this Journal
Abstract
A Hotchkiss spring has been widely utilized for commercial vehicle. Usually, the Hotchkiss spring has non-linear characteristics, i.e. it has a piecewise spring stiffness as well as hysterisis phenomenon. Therefore, the modeling of the Hotchkiss spring requires many considerations to fulfill satisfactory vehicle kinematic and dynamic relationships. Also, the spring has difficulties in modeling for presenting contact mechanism. In this paper, the modeling technique for the Hotchkiss spring has been descried. The modeling covers non-linear characteristics as well as contact problems for multi-body dynamic simulation. The force-displacement results are compared with experimental and FEM ones. Also, the comparison between three link type leaf spring model and proposed one has been considered in this paper.
Keywords
Hotchkiss spring; Half car; Impact function; Contact effect; ADAMS vehicle model;
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