Naslov
Computational Tool for Simulation of the Dynamic Response of Valve Train

Autori
Osman, Krešimir

Izvornik
IJTTE. International Journal for Traffic and Transport Engineering (2217-544X) 4 (2014), 1; 90-102

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
computational tool ; MOTORI 2004 ; simulation ; dynamic response ; valve train

Sažetak
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.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo

POVEZANOST RADA