Mathematical Sciences Research Centre Seminar Series

High-frequency structure- and air-borne sound transmission for a tractor model using Dynamical Energy Analysis

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Seminars

As part of the School of Science and Technology Mathematical Sciences Research Centre Seminar Series, Dr Timo Hartmann, University of Nottingham presents: High-frequency structure- and air-borne sound transmission for a tractor model using Dynamical Energy Analysis.

  • From: Thursday 8 February 2018, 4 pm
  • To: Thursday 8 February 2018, 5 pm
  • Location: NHB 169, New Hall Block, Nottingham Trent University, Clifton Campus, Clifton Lane, Nottingham, NG11 8NS

Past event

Event details

As part of the School of Science and Technology Mathematical Sciences Research Centre Seminar Series, Dr Timo Hartmann, University of Nottingham presents: High-frequency structure- and air-borne sound transmission for a tractor model using Dynamical Energy Analysis.

Abstract

Dynamical Energy Analysis (DEA) is a mesh-based high frequency method for modelling structure borne sound for complex built-up structures. Vibroacoustic simulations are done directly on finite element meshes circumventing then 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 progress in the development of the DEA method towards handling complex FEM-meshes including Rigid Body Elements and sound radiation. The results for simulations are compared to measurements on a tractor model provided by Yanmar Co. Ltd., both for structure borne vibrations and sound pressure levels (SPL) inside the cabin. 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 SPLs inside the cabin.

All welcome.

This seminar is hosted by Dr David Chappell.

For any enquiries please contact Dr David Chappell.

Location details

Room/Building:

NHB 169, New Hall Block

Address:

Nottingham Trent University
Clifton Campus
Clifton Lane
Nottingham
NG11 8NS

Past event

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