Vibro-acoustic energy flow through spot-welds in Dynamical Energy Analysis

Timo Hartmann; Gang Xie; Janis Bajars; David Chappell; Gregor Tanner

Vibro-acoustic energy flow through spot-welds in Dynamical Energy Analysis

Timo Hartmann
, Gang Xie
, Janis Bajars
, David Chappell
, Gregor Tanner

University of Nottingham
CDH AG
Nottingham Trent University

Research output: Contribution to conference › Paper › peer-review

Abstract

Dynamical Energy Analysis (DEA) in the form of Discrete Flow Mapping (DFM) is a fairly new mesh-based method for numerically modelling structure borne sound transmission in complex structures. A key feature is the possibility to work directly on existing finite element (FE) meshes avoiding time-consuming and costly remodelling. Furthermore, DFM provides detailed spatial information about the vibrational energy distribution within a complex structure in the mid-to-high frequency range. In this work we will illustrate the method using a car floor structure which consists of a big panel and several rails connected by spot welds modeled in FE through Rigid Body Elements (RBE).

Original language	English
Pages	1665-1673
Number of pages	9
Publication status	Published - 21 Aug 2016
Externally published	Yes
Event	45th International Congress and Exposition on Noise Control Engineering: Towards a Quieter Future, INTER-NOISE 2016 - Hamburg, Germany Duration: 21 Aug 2016 → 24 Aug 2016

Conference

Conference	45th International Congress and Exposition on Noise Control Engineering: Towards a Quieter Future, INTER-NOISE 2016
Country/Territory	Germany
City	Hamburg
Period	21/08/16 → 24/08/16

Keywords

Sound
Transmission

Cite this

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title = "Vibro-acoustic energy flow through spot-welds in Dynamical Energy Analysis",

abstract = "Dynamical Energy Analysis (DEA) in the form of Discrete Flow Mapping (DFM) is a fairly new mesh-based method for numerically modelling structure borne sound transmission in complex structures. A key feature is the possibility to work directly on existing finite element (FE) meshes avoiding time-consuming and costly remodelling. Furthermore, DFM provides detailed spatial information about the vibrational energy distribution within a complex structure in the mid-to-high frequency range. In this work we will illustrate the method using a car floor structure which consists of a big panel and several rails connected by spot welds modeled in FE through Rigid Body Elements (RBE).",

keywords = "Sound, Transmission",

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note = "Publisher Copyright: {\textcopyright} 2016, German Acoustical Society (DEGA). All rights reserved.; 45th International Congress and Exposition on Noise Control Engineering: Towards a Quieter Future, INTER-NOISE 2016 ; Conference date: 21-08-2016 Through 24-08-2016",

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TY - CONF

T1 - Vibro-acoustic energy flow through spot-welds in Dynamical Energy Analysis

AU - Hartmann, Timo

AU - Xie, Gang

AU - Bajars, Janis

AU - Chappell, David

AU - Tanner, Gregor

PY - 2016/8/21

Y1 - 2016/8/21

N2 - Dynamical Energy Analysis (DEA) in the form of Discrete Flow Mapping (DFM) is a fairly new mesh-based method for numerically modelling structure borne sound transmission in complex structures. A key feature is the possibility to work directly on existing finite element (FE) meshes avoiding time-consuming and costly remodelling. Furthermore, DFM provides detailed spatial information about the vibrational energy distribution within a complex structure in the mid-to-high frequency range. In this work we will illustrate the method using a car floor structure which consists of a big panel and several rails connected by spot welds modeled in FE through Rigid Body Elements (RBE).

AB - Dynamical Energy Analysis (DEA) in the form of Discrete Flow Mapping (DFM) is a fairly new mesh-based method for numerically modelling structure borne sound transmission in complex structures. A key feature is the possibility to work directly on existing finite element (FE) meshes avoiding time-consuming and costly remodelling. Furthermore, DFM provides detailed spatial information about the vibrational energy distribution within a complex structure in the mid-to-high frequency range. In this work we will illustrate the method using a car floor structure which consists of a big panel and several rails connected by spot welds modeled in FE through Rigid Body Elements (RBE).

KW - Sound

KW - Transmission

UR - https://www.scopus.com/pages/publications/84994633981

M3 - Paper

AN - SCOPUS:84994633981

SP - 1665

EP - 1673

T2 - 45th International Congress and Exposition on Noise Control Engineering: Towards a Quieter Future, INTER-NOISE 2016

Y2 - 21 August 2016 through 24 August 2016

ER -

Vibro-acoustic energy flow through spot-welds in Dynamical Energy Analysis

Abstract

Conference

Keywords

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