Mid-High Frequency Structure-Borne Transmission in Full Vehicles Trimmed Body Models Using a Reverberant Finite Element Approach Dassault Systemes

Format:

Book

Conference/Event

Author/Creator:

Errico, Fabrizio, author.

Legault, Julien, author.

Mordillat, Philippe, author.

Zerrad, Mehdi, author.

Conference Name:

14th International Styrian Noise, Vibration & Harshness Congress: The European Automotive Noise Conference (2026-06-17 : Graz, Austria)

Language:

English

Subjects (All):

Finite element analysis.

Simulation and modeling.

Noise, Vibration, and Harshness (NVH).

Local Subjects:

Finite element analysis.

Simulation and modeling.

Noise, Vibration, and Harshness (NVH).

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2026

Summary:

The simulation of structure-borne energy flow within a full vehicle trimmed body at mid and high frequencies has always been a challenge due to the large computational cost associated with standard deterministic simulations. This is a particularly pressing problem given that the electrification of the vehicles is extending the presence of structure-borne sources to higher frequencies. While the improvement of computational hardware has allowed OEMs to shift the limit of standard Finite Element (FE) approaches to higher frequencies, no methods have been proposed in the literature that tackle the full frequency range for industrial-sized problems. In this paper, a simulation methodology that uses wave-based processing of the original low-frequency finite element input deck to compute the coupling loss factors is proposed to model structure-borne noise in complex systems at mid and high frequencies. The methodology is validated against numerical and experimental data

Notes:

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