<abstract xmlns="http://www.w3.org/1999/xhtml"><p><italic>The article discusses causes of the appearance of transverse, longitudinal and torsional</italic><italic>crankshaft vibrations in multi-cylinder internal combustion engines. Particular attention</italic><italic>is paid to the torsional vibration which is the most severe threat to engine crankshafts.</italic><italic>Damping methods making use of torsion dampers are presented. With the reference to</italic><italic>viscotic dampers, problems with their damping efficiency are discussed in the context of</italic><italic>viscosity changes of the damping liquid. The article also presents the amplitude-frequency</italic><italic>characteristics of a series of viscotic dampers, which were recorded experimentally on the</italic><italic>research rig and on a real object. An idea of vibration damper metric is given.</italic></p></abstract>

The article discusses causes of the appearance of transverse, longitudinal and torsionalcrankshaft vibrations in multi-cylinder internal combustion engines. Particular attentionis paid to the torsional vibration which is the most severe threat to engine crankshafts.Damping methods making use of torsion dampers are presented. With the reference toviscotic dampers, problems with their damping efficiency are discussed in the context ofviscosity changes of the damping liquid. The article also presents the amplitude-frequencycharacteristics of a series of viscotic dampers, which were recorded experimentally on theresearch rig and on a real object. An idea of vibration damper metric is given.

The effect of liquid temperature and viscosity on the amplitude-frequency characteristics of a viscotic torsion damper

Rzeszów University of Technology, Poland

Polish Maritime Research

The article discusses causes of the appearance of transverse, longitudinal and torsionalcrankshaft vibrations in multi-cylinder internal combustion engines....

The effect of liquid temperature and viscosity on the amplitude-frequency characteristics of a viscotic torsion damper

Published Online: Jan 26, 2013

Page range: 71 - 77

DOI: https://doi.org/10.2478/v10012-012-0042-2

This content is open access.