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Analysis of Kinematic and Dynamic Behaviour of Valve Train System

[+] Author Affiliations
Vishnu R. Rai, Vijay M. Mahangade, C. B. Remesan

TAFE Motors and Tractors Ltd., Alwar, Rajasthan, India

Paper No. IMECE2014-36096, pp. V04BT04A001; 7 pages
doi:10.1115/IMECE2014-36096
From:
  • ASME 2014 International Mechanical Engineering Congress and Exposition
  • Volume 4B: Dynamics, Vibration, and Control
  • Montreal, Quebec, Canada, November 14–20, 2014
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-4648-3
  • Copyright © 2014 by ASME

abstract

This paper discusses the work done on kinematic and dynamic analysis of Valve Train (VT) system of a diesel engine by Analytical method. Above said analysis was done as a part of verification of VT system design for an engine speed increase of 21 %. Kinematic analysis is carried out to study the change in valve motion characteristics such as cam contour radius, tappet contact eccentricity etc. Further to this, dynamic analysis is carried out to assess forces and stresses on valve train components. Effect of cam tappet contact stresses, buckling load on push rod, spring surge, ratio of spring force to inertia force, valve seating velocity at increased speed condition etc. are discussed in detail. The kinematic and dynamic analysis methodology adopted, was validated using GT-VTRAIN software for existing and increased speeds and the comparative results are also discussed.

Copyright © 2014 by ASME
Topics: Kinematics , Valves , Trains

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