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Title: Targeted energy transfer and modal energy redistribution in automotive drivetrains
Authors: Motato, Eliot
Haris, Ahmed
Theodossiades, Stephanos
Mohammadpour, Mahdi
Rahnejat, Homer
Kelly, P.
Vakakis, A.F.
McFarland, D.M.
Bergman, L.A.
Keywords: Targeted energy transfer
Nonlinear energy sink
Automotive drivetrain
Modal energy redistribution
Issue Date: 2017
Publisher: © The Author(s) 2016. This article is published with open access at Springerlink.com
Citation: MOTATO, E. ... et al., 2017. Targeted energy transfer and modal energy redistribution in automotive drivetrains. Nonlinear Dynamics, 87(1), pp.169-190.
Abstract: 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.
Description: 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.
Sponsor: 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.
Version: Published
DOI: 10.1007/s11071-016-3034-4
URI: https://dspace.lboro.ac.uk/2134/22369
Publisher Link: http://dx.doi.org/10.1007/s11071-016-3034-4
ISSN: 1573-269X
Appears in Collections:Published Articles (Mechanical, Electrical and Manufacturing Engineering)

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