On the relevance of impact source impedance at low frequencies-part 2: floors with floating toppings

Download
  1. Available on July 27, 2018
  2. Get@NRC: On the relevance of impact source impedance at low frequencies-part 2: floors with floating toppings (Opens in a new window)
AuthorSearch for: ; Search for: ; Search for:
TypeArticle
Proceedings titleProceedings of the 24th International Congress on Sound and Vibration
Series titleProceedings of the ... International Congress on Sound and Vibration
Conference24th International Congress on Sound and Vibration ICSV, July 23-27, 2017, London, UK
ISSN2329-3675
ISBN978-1-906913-27-4
Subjectbuilding acoustics; impact sound; low frequencies; impedance match
AbstractLow frequency noise generated from impact sources on floors is becoming more significant due to the trend of using lighter building components. The amount of sound power that gets injected into the floor depends on the impedance matching between the source (e.g. barefoot or shoe walkers) and the receiving surface (e.g. floors unless Spiderman is in the house). In a previous study, it was identified that the impedance of the impact sources at low frequencies has no influence on the power injected into wood or concrete floors without floating toppings. The reason is because the impedance of both the wood and concrete floor is much higher than the source impedance and only the force controls the amount of power injected into the floor. In this current study, calculation models are used to simulate the effect of a floating topping on the injected power by investigating the resulting impedance and impedance match between the floor with a floating topping and the two standardized ISO impact sources (heavy/soft ball and hard tapping machine). Finally, the relevance of impact source impedance at low frequencies will be presented for floors with floating toppings.
Publication date
PublisherInternational Congress on Sound and Vibration
LanguageEnglish
AffiliationConstruction; National Research Council Canada
Peer reviewedYes
NPARC number23002143
Export citationExport as RIS
Report a correctionReport a correction
Record identifier280ff1f1-8593-4935-94bb-9c779c01b4ad
Record created2017-08-25
Record modified2017-08-25
Bookmark and share
  • Share this page with Facebook (Opens in a new window)
  • Share this page with Twitter (Opens in a new window)
  • Share this page with Google+ (Opens in a new window)
  • Share this page with Delicious (Opens in a new window)