VIB-16-1462-NDolatabadi et al.pdf (1.19 MB)
Passive control of piston secondary motion using nonlinear energy absorbers
journal contribution
posted on 2017-03-22, 14:50 authored by Nader DolatabadiNader Dolatabadi, Stephanos TheodossiadesStephanos Theodossiades, Steve RothbergThe impulsive behaviour of the piston in the cylinder liner plays a key role in the Noise, Vibration and Harshness (NVH) of internal combustion engines. There have been several studies on the identification and quantification of piston impact action under various operation conditions. In the current study, the dynamics of the piston secondary motion are initially explored in order to describe the aggressive oscillations, energy loss and noise generation. The control of piston secondary motion (and thus, impacts) is investigated using a new passive approach based on energy transfer of the highly transient oscillations to a nonlinear absorber. The effectiveness of this new method for improving the piston impact behaviour is discussed using a preliminary parametric study that leads to the conceptual design of a nonlinear energy absorber.
Funding
This work was supported by the EPSRC [Encyclopaedic Program Grant EP/G012334/1].
History
School
- Mechanical, Electrical and Manufacturing Engineering
Published in
Journal of Vibration and Acoustics: Transactions of the ASMECitation
DOLATABADI, N., THEODOSSIADES, S. and ROTHBERG, S., 2017. Passive control of piston secondary motion using nonlinear energy absorbers. Journal of Vibration and Acoustics: Transactions of the ASME, 139 (5), 051009.Publisher
© American Society of Mechanical Engineers (ASME)Version
- AM (Accepted Manuscript)
Publisher statement
This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) licence. Full details of this licence are available at: http://creativecommons.org/licenses/by-nc/4.0/Acceptance date
2017-02-20Publication date
2017Notes
This paper was accepted for publication in the journal Journal of Vibration and Acoustics: Transactions of the ASME and the definitive published version is available at https://doi.org/10.1115/1.4036468ISSN
1528-8927Publisher version
Language
- en