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A transient tribodynamic approach for the calculation of internal combustion engine piston slap noise

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journal contribution
posted on 01.06.2015, 13:27 by Nader Dolatabadi, Bryn Littlefair, Miguel De la Cruz, Stephanos Theodossiades, Steve Rothberg, Homer Rahnejat
An analytical/numerical methodology is presented to calculate the radiated noise due to internal combustion engine piston impacts on the cylinder liner through a film of lubricant. Both quasi-static and transient dynamic analyses coupled with impact elasto-hydrodynamics are reported. The local impact impedance is calculated, as well as the transferred energy onto the cylinder liner. The simulations are verified against experimental results for different engine operating conditions and for noise levels calculated in the vicinity of the engine block. Continuous wavelet signal processing is performed to identify the occurrence of piston slap noise events and their spectral content, showing good conformance between the predictions and experimentally acquired signals.

Funding

The authors wish to express their gratitude to the EPSRC for the financial support extended to the Encyclopaedic Program [grant number EP/G012334/1].

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Published in

Journal of Sound and Vibration

Volume

352

Pages

192 - 209

Citation

DOLATABADI, N. ... et al, 2015. A transient tribodynamic approach for the calculation of internal combustion engine piston slap noise. Journal of Sound and Vibration, 352, pp. 192–209.

Publisher

Elsevier / © The Authors

Version

VoR (Version of Record)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution 4.0 International (CC BY 4.0) licence. Full details of this licence are available at: http://creativecommons.org/licenses/by/4.0/

Acceptance date

15/04/2015

Publication date

2015-05-27

Notes

This is an Open Access Article, it is published by Elsevier and distributed under the terms of the Creative Commons Attribution 4.0 licence (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

ISSN

0022-460X

eISSN

1095-8568

Language

en

Licence

Exports