Measuring the impact force from the ISO impact ball and comparison with the tapping machine and alternate input method

Sunit Girdhar, Jason Blough, Andrew Barnard, John LoVerde, Wayland Dong

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The impact ball was recently standardized within the ISO standards as a low-frequency input impact source for impact testing of floor-ceiling assemblies. The input force due to an impact ball is not measured during the tests. A force measurement plate was created with three force transducers to measure the impact force due to ball drops on six different floor assemblies. The input force showed a really good comparison for heavy and lightweight floors in lower frequency but poor force excitation for all the floors above 100 Hz. The input force values were compared with a modified tapping machine's force input levels showing the tapping machine has poor low-frequency excitation (in comparison) but an improved high-frequency excitation. An alternate input method was developed where a force transducer is added to the impactor to make live measurements of the input force and the impact tip can be changed to modify the range of targeted frequencies for any test.

Original languageEnglish (US)
Title of host publicationInternoise 2022 - 51st International Congress and Exposition on Noise Control Engineering
PublisherThe Institute of Noise Control Engineering of the USA, Inc.
ISBN (Electronic)9781906913427
StatePublished - 2022
Event51st International Congress and Exposition on Noise Control Engineering, Internoise 2022 - Glasgow, United Kingdom
Duration: Aug 21 2022Aug 24 2022

Publication series

NameInternoise 2022 - 51st International Congress and Exposition on Noise Control Engineering

Conference

Conference51st International Congress and Exposition on Noise Control Engineering, Internoise 2022
Country/TerritoryUnited Kingdom
CityGlasgow
Period8/21/228/24/22

All Science Journal Classification (ASJC) codes

  • Acoustics and Ultrasonics

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