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Rigid indenter excitation of plates

Brunskog, Jonas LU and Hammer, Per LU (2003) In Acta Acustica united with Acustica 89(3). p.460-470
Abstract
The paper presents expressions for the point mobility of infinite plates driven by a completely rigid indenter. The problem is of general interest in connection with the excitation and transmission of structure-borne sound. The indenter is assumed to be circular, weightless, and stiff compared with the plate. A rigid indenter is assumed to provide a better approximation of the actual situation than a soft indenter would, e.g when a hammer acts on a wooden plate. A detailed three-dimensional analysis is performed. Traditionally, the problem is solved in approximate terms by assuming a pressure distribution at the interface between the indenter and the plate. In the present study, a pressure distribution is also assumed, an optimal choice of... (More)
The paper presents expressions for the point mobility of infinite plates driven by a completely rigid indenter. The problem is of general interest in connection with the excitation and transmission of structure-borne sound. The indenter is assumed to be circular, weightless, and stiff compared with the plate. A rigid indenter is assumed to provide a better approximation of the actual situation than a soft indenter would, e.g when a hammer acts on a wooden plate. A detailed three-dimensional analysis is performed. Traditionally, the problem is solved in approximate terms by assuming a pressure distribution at the interface between the indenter and the plate. In the present study, a pressure distribution is also assumed, an optimal choice of the pressure amplitude being found by means of a variational formulation. Numerical results are presented and discussed, the discrepancy between the results obtained and the perfectly rigid indenter being examined. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Acta Acustica united with Acustica
volume
89
issue
3
pages
460 - 470
publisher
Hirzel Verlag
external identifiers
  • wos:000183655900010
  • scopus:0037529197
ISSN
1436-7947
language
English
LU publication?
yes
id
4a4f7a46-3132-4593-ae74-b026978d16bc (old id 308774)
alternative location
http://www.ingentaconnect.com/
date added to LUP
2007-08-27 12:08:20
date last changed
2018-01-07 08:46:15
@article{4a4f7a46-3132-4593-ae74-b026978d16bc,
  abstract     = {The paper presents expressions for the point mobility of infinite plates driven by a completely rigid indenter. The problem is of general interest in connection with the excitation and transmission of structure-borne sound. The indenter is assumed to be circular, weightless, and stiff compared with the plate. A rigid indenter is assumed to provide a better approximation of the actual situation than a soft indenter would, e.g when a hammer acts on a wooden plate. A detailed three-dimensional analysis is performed. Traditionally, the problem is solved in approximate terms by assuming a pressure distribution at the interface between the indenter and the plate. In the present study, a pressure distribution is also assumed, an optimal choice of the pressure amplitude being found by means of a variational formulation. Numerical results are presented and discussed, the discrepancy between the results obtained and the perfectly rigid indenter being examined.},
  author       = {Brunskog, Jonas and Hammer, Per},
  issn         = {1436-7947},
  language     = {eng},
  number       = {3},
  pages        = {460--470},
  publisher    = {Hirzel Verlag},
  series       = {Acta Acustica united with Acustica},
  title        = {Rigid indenter excitation of plates},
  volume       = {89},
  year         = {2003},
}