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Abstract
This paper describes a simulation model capable of predicting the impact and abrading characteristics of the parking mechanism used in the Ion automatic transmission. Several linear and non-linear mathematical models are developed to satisfactorily reproduce the dynamic characteristics observed in vehicle abuse tests. Mathematical representation of the parking mechanism assembly is based on modelling the local contact deformation of the components combined with the vibrations of the parking pawl predicted by Euler’s beam theory. Impact and contact conditions are formulated to include the effects of elasticity, damping and friction. Simulation results provide insight into various design parameters and directions for design improvements relevant to the durability characteristics of the parking mechanism.
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Notes on contributors
Jeku M Jeyakumaran
Jeku M. Jeyakumaran is a Team Leader in CAE & Modelling division of R&D Department, BTR Automotive Systems (now known as Ion Automotive Systems). He has more than twelve years of industrial experience in various R&D organisations. He has completed his Ph. D. in Theoretical and Applied Mechanics at Northwestern University, Illinois, U.S.A, in 1994 and a Masters of Engineering degree from Asian Institute of Technology, Bangkok, Thailand. His industrial and research interests include many areas in solid mechanics, dynamic analysis, computational mechanics, and Automotive Engineering.