Battery packs used in electrified vehicles exhibit high modal density due to their repeated cell substructures. If the excitation contains frequencies in the region of high modal density, small commonly occurring structural variations can lead to drastic changes in the vibration response. The battery pack fatigue life depends strongly on their vibration response; thus, a statistical analysis of the vibration response with structural variations is important from a design point of view. In this work, parametric reduced-order models (PROMs) are created to efficiently and accurately predict the vibration response in Monte Carlo calculations, which account for stochastic structural variations. Additionally, an efficient iterative approach to handle material nonlinearities used in battery packs is proposed to augment the PROMs. The nonlinear structural behavior is explored, and numerical results are provided to validate the proposed models against full-order finite element approaches.
Nonlinear Parametric Reduced-Order Model for the Structural Dynamics of Hybrid Electric Vehicle Batteries
Contributed by the Technical Committee on Vibration and Sound of ASME for publication in the JOURNAL OF VIBRATION AND ACOUSTICS. Manuscript received June 23, 2017; final manuscript received October 4, 2017; published online December 12, 2017. Assoc. Editor: Stefano Gonella.
This work is in part a work of the U.S. Government. ASME disclaims all interest in the U.S. Government's contributions.
- Views Icon Views
- Share Icon Share
- Cite Icon Cite
- Search Site
Lu, J., D'Souza, K., Castanier, M. P., and Epureanu, B. I. (December 12, 2017). "Nonlinear Parametric Reduced-Order Model for the Structural Dynamics of Hybrid Electric Vehicle Batteries." ASME. J. Vib. Acoust. April 2018; 140(2): 021018. https://doi.org/10.1115/1.4038302
Download citation file:
- Ris (Zotero)
- Reference Manager