Timo Hartmann
High-frequency structure- and air-borne sound transmission for a tractor model using Dynamical Energy Analysis
Hartmann, Timo; Morita, Satoshi; Tanner, Gregor; Chappell, David J.
Authors
Satoshi Morita
GREGOR TANNER GREGOR.TANNER@NOTTINGHAM.AC.UK
Professor of Applied Mathematics
David J. Chappell
Abstract
Dynamical Energy Analysis (DEA) is a mesh-based high frequency method for modelling structure borne sound in complex built-up structures. Vibro-acoustic simulations are performed directly on finite element meshes, circumventing the need for re-modelling strategies. DEA provides detailed spatial information about the vibrational energy distribution within a complex structure in the mid-to-high frequency range. We will present here progress in the development of the DEA method towards handling complex FE-meshes including Rigid Body Elements and sound radiation. We also provide, for the first time, a detailed comparison of the simulations with measurements on a complex engineering structure consisting of the chassis and cabin of a tractor. Both structure borne vibrations and sound pressure levels (SPL) inside the cabin were considered. For the latter, a combined DEA/SEA analysis has been developed. The simulation results compare favourably with measurement results, both for vibration levels measured across the structure and for SPLs inside the cabin.
Journal Article Type | Article |
---|---|
Acceptance Date | Sep 12, 2018 |
Online Publication Date | Sep 27, 2018 |
Publication Date | 2019-04 |
Deposit Date | Apr 30, 2019 |
Publicly Available Date | Feb 18, 2021 |
Journal | Wave Motion |
Print ISSN | 0165-2125 |
Publisher | Elsevier |
Peer Reviewed | Peer Reviewed |
Volume | 87 |
Pages | 132-150 |
DOI | https://doi.org/10.1016/j.wavemoti.2018.09.012 |
Keywords | General Physics and Astronomy |
Public URL | https://nottingham-repository.worktribe.com/output/1878741 |
Publisher URL | https://www.sciencedirect.com/science/article/abs/pii/S0165212518303913?via%3Dihub |
Additional Information | This article is maintained by: Elsevier; Article Title: High-frequency structure- and air-borne sound transmission for a tractor model using Dynamical Energy Analysis; Journal Title: Wave Motion; CrossRef DOI link to publisher maintained version: https://doi.org/10.1016/j.wavemoti.2018.09.012; Content Type: article; Copyright: © 2018 Elsevier B.V. All rights reserved. |
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