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The interaction between the ISO tapping machine and lightweight floors

Brunskog, Jonas LU and Hammer, Per LU (2003) In Acta Acustica united with Acustica 89(2). p.296-308
Abstract
The ISO standard tapping machine, used as an excitation source in rating the impact-sound level of a floor structure, interacts with the floor structure during the hammer impact. Expressions for the force spectrum due to the impact are presented. The 6 dB difference at low frequencies of the force spectrum, evident in measurements, and reasons for it, are discussed. The interaction is investigated by use both of simplified lumped models and arbitrary frequency-dependent models. Local effects due to indentation near the point of impact and to global effects due to stiffeners are included in the description of the mobility involved. Numerical results are presented, where it is concluded that both the local and the global effects of the... (More)
The ISO standard tapping machine, used as an excitation source in rating the impact-sound level of a floor structure, interacts with the floor structure during the hammer impact. Expressions for the force spectrum due to the impact are presented. The 6 dB difference at low frequencies of the force spectrum, evident in measurements, and reasons for it, are discussed. The interaction is investigated by use both of simplified lumped models and arbitrary frequency-dependent models. Local effects due to indentation near the point of impact and to global effects due to stiffeners are included in the description of the mobility involved. Numerical results are presented, where it is concluded that both the local and the global effects of the driving-point mobility are important in describing the force spectrum caused by the interaction between the tapping machine and the complex floor structure. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Acta Acustica united with Acustica
volume
89
issue
2
pages
296 - 308
publisher
Hirzel Verlag
external identifiers
  • wos:000182172400013
  • scopus:0038558583
ISSN
1436-7947
language
English
LU publication?
yes
id
7a24c4cf-c3e8-4b2d-bf42-ffde9704f7c3 (old id 313868)
alternative location
http://www.ingentaconnect.com/content/dav/aaua/2003/00000089/00000002/art00013
date added to LUP
2007-08-27 12:10:24
date last changed
2018-05-29 09:39:39
@article{7a24c4cf-c3e8-4b2d-bf42-ffde9704f7c3,
  abstract     = {The ISO standard tapping machine, used as an excitation source in rating the impact-sound level of a floor structure, interacts with the floor structure during the hammer impact. Expressions for the force spectrum due to the impact are presented. The 6 dB difference at low frequencies of the force spectrum, evident in measurements, and reasons for it, are discussed. The interaction is investigated by use both of simplified lumped models and arbitrary frequency-dependent models. Local effects due to indentation near the point of impact and to global effects due to stiffeners are included in the description of the mobility involved. Numerical results are presented, where it is concluded that both the local and the global effects of the driving-point mobility are important in describing the force spectrum caused by the interaction between the tapping machine and the complex floor structure.},
  author       = {Brunskog, Jonas and Hammer, Per},
  issn         = {1436-7947},
  language     = {eng},
  number       = {2},
  pages        = {296--308},
  publisher    = {Hirzel Verlag},
  series       = {Acta Acustica united with Acustica},
  title        = {The interaction between the ISO tapping machine and lightweight floors},
  volume       = {89},
  year         = {2003},
}