Nonlinear dynamics of timing gear transmissions including valve trains

T. Engelhardt, H. Ulbrich, J. Remmelgas

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


At the Institute of Applied Mechanics at the Technical University of Munich, Germany, the multibody simulation program Dynas has been developed to compute the dynamical behavior of complex gear drives and multibody systems. Dynas is a very versatile tool that may be used for the calculation of arbitrary combinations of powertrain systems using object oriented component libraries. Using Dynas, it is possible to determine the vibrational behavior of the timing drive at an early development stage. In this work, the main simulation models and their implementation in Dynas are described with a focus on the toothing model which allows for the simulation of normal and helical gear wheels with all degrees of freedom. A simulation model of a 380 hp version of a 9.4 litre Volvo diesel engine is developed. The model includes the crankshaft, the gear wheel drive, the auxiliaries and a multi-body model of the entire valve train including the unit injectors. The simulation results are shown to give good agreement with measurements, thus demonstrating the accuracy of the simulation tool and the models upon which it is based.

Original languageEnglish
Pages (from-to)671-685
Number of pages15
JournalVDI Berichte
Issue number1904 I
StatePublished - 2005
Externally publishedYes


Dive into the research topics of 'Nonlinear dynamics of timing gear transmissions including valve trains'. Together they form a unique fingerprint.

Cite this