Computational Tool for Simulation of the Dynamic Response of Valve Train

This paper presents the development of the MOTORI 2004 computing tool that calculates the distance, speed and acceleration of a car engine valve train’s oscillating mass m, which is reduced to the valve axis. Distance diagrams, speed and accelerations are provided in dependence on the camshaft twist angle at a constant rotational speed in several consecutive revolutions. The computing tool implements a mathematical description and numerical solution for the motion of mass m of a valve gear dynamic model. Valve lift h is given numerically using a series of equidistant points in the period of one camshaft revolution. The variabilities of camshaft rotation and spring thread vibration as a result of cam lift harmonic excitation. The computing solutions were tested at valve opening points and in imaginary extreme operating conditions - soft/hard spring, low/high damping, low/high rotational speed and increased clearance.


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  • Accession Number: 01528256
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jun 12 2014 2:38PM