art%3A10.1007%2Fs11071-016-3034-4.pdf (5.97 MB)

Targeted energy transfer and modal energy redistribution in automotive drivetrains

Download (5.97 MB)
journal contribution
posted on 07.09.2016 by Eliot Motato, Ahmed Haris, Stephanos Theodossiades, Mahdi Mohammadpour, Homer Rahnejat, P. Kelly, A.F. Vakakis, D.M. McFarland, L.A. Bergman
The new generations of compact high output power-to-weight ratio internal combustion engines generate broadband torsional oscillations, transmitted to lightly damped drivetrain systems. A novel approach to mitigate these untoward vibrations can be the use of nonlinear absorbers. These act as Nonlinear Energy Sinks (NESs). The NES is coupled to the primary (drivetrain) structure, inducing passive irreversible targeted energy transfer (TET) from the drivetrain system to the NES. During this process, the vibration energy is directed from the lower-frequency modes of the structure to the higher ones. Thereafter, vibrations can be either dissipated through structural damping or consumed by the NES. This paper uses a lumped parameter model of an automotive driveline to simulate the effect of TET and the assumed modal energy redistribution. Significant redistribution of vibratory energy is observed through TET. Furthermore, the integrated optimization process highlights the most effective configuration and parametric evaluation for use of NES.

Funding

The authors wish to express their gratitude to the UK Engineering and Physical Sciences Council (EPSRC) for the financial support extended to the project entitled “Targeted energy transfer in powertrains to reduce vibration-induced energy losses” Grant (EP/L019426/1), under which this research was carried out. Thanks are also due to Ford Motor Company and Raicam Clutch for their technical support, as well as to AVL List for providing access to the multi-objective optimization software: CAMEO.

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Published in

Nonlinear Dynamics

Citation

MOTATO, E. ... et al., 2017. Targeted energy transfer and modal energy redistribution in automotive drivetrains. Nonlinear Dynamics, 87(1), pp.169-190.

Publisher

© The Author(s) 2016. This article is published with open access at Springerlink.com

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

17/08/2016

Publication date

2017

Notes

This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

ISSN

1573-269X

Language

en

Licence

Exports