On modelling of the dynamic loading conditions occuring in the elastic connecting rod of an IC engine crank mechanism

C. Kiss, István Zobory

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

In this study a simplified model of a single cylinder IC engine crank mechanism is investigated. The model consists of a longitudinally elastic connecting rod and two rigid masses in order to determine the basic vibration behaviour of the system (eigenfrequencies, excited vibrations, etc.) and the dynamic loading conditions of the connecting rod occurring in the course of the vibrations mentioned. In the first step the mass of the connecting rod was concentrated into the two end-points of the connecting rod. The longitudinally elastic and dissipative behaviour of the connecting rod was modelled by an in-parallel connected linear spring/damper system. A crucial point of the model formation was the elaboration of the treatment of the variation with time of the gas-forces starting from the theoretical pressure vs. volume cycle diagram. It is very important to find the appropriate method for treating the transitional gas pressure variation processes in the close neighbourhood of the extremum piston displacements (dead centres). The motion equations were generated using the basic law of kinetics. The unknown motion and loading characteristics were determined by numerical solution of the motion equation system by means of the numerical integration method of Heun. The kinematical and dynamical behaviour of the system was visualised by piston displacement dependent and crank-shaft angular displacement dependent response functions.

Original languageEnglish
Title of host publicationProceedings of the Mini Conference on Vehicle System Dynamics, Identification and Anomalies
Pages521-527
Number of pages7
Publication statusPublished - 2004
Event9th Mini Conference on Vehicle System Dynamics, Identification and Anomalies, VSDIA 2004 - Budapest, Hungary
Duration: Nov 8 2004Nov 10 2004

Other

Other9th Mini Conference on Vehicle System Dynamics, Identification and Anomalies, VSDIA 2004
CountryHungary
CityBudapest
Period11/8/0411/10/04

Fingerprint

Connecting rods
Engines
Piston displacement
Equations of motion
Engine cylinders
Gases
Kinetics

Keywords

  • Dynamical model
  • Motion equation
  • Numerical method
  • Simulation

ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

Kiss, C., & Zobory, I. (2004). On modelling of the dynamic loading conditions occuring in the elastic connecting rod of an IC engine crank mechanism. In Proceedings of the Mini Conference on Vehicle System Dynamics, Identification and Anomalies (pp. 521-527)

On modelling of the dynamic loading conditions occuring in the elastic connecting rod of an IC engine crank mechanism. / Kiss, C.; Zobory, István.

Proceedings of the Mini Conference on Vehicle System Dynamics, Identification and Anomalies. 2004. p. 521-527.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Kiss, C & Zobory, I 2004, On modelling of the dynamic loading conditions occuring in the elastic connecting rod of an IC engine crank mechanism. in Proceedings of the Mini Conference on Vehicle System Dynamics, Identification and Anomalies. pp. 521-527, 9th Mini Conference on Vehicle System Dynamics, Identification and Anomalies, VSDIA 2004, Budapest, Hungary, 11/8/04.
Kiss C, Zobory I. On modelling of the dynamic loading conditions occuring in the elastic connecting rod of an IC engine crank mechanism. In Proceedings of the Mini Conference on Vehicle System Dynamics, Identification and Anomalies. 2004. p. 521-527
Kiss, C. ; Zobory, István. / On modelling of the dynamic loading conditions occuring in the elastic connecting rod of an IC engine crank mechanism. Proceedings of the Mini Conference on Vehicle System Dynamics, Identification and Anomalies. 2004. pp. 521-527
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