VERIFICATION PROCEDURES FOR THE IMPACT FORCE APPLIED BY THE RUBBER BALL USED FOR IMPACT SOUND INSULATION MEASUREMENTS

Hirakawa, S and Hopkins, C ORCID: 0000-0002-9716-0793 (2023) VERIFICATION PROCEDURES FOR THE IMPACT FORCE APPLIED BY THE RUBBER BALL USED FOR IMPACT SOUND INSULATION MEASUREMENTS. In: ICSV 2023, 2023-7-9 - 2023-7-13, Prague.

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Abstract

Annex A of ISO 16283-2:2015 and Annex F of ISO 10140-5:2010+A1:2014 prescribe the rubber ball as a heavy-soft impact source for the measurement of the impact sound insulation of floors. They provide information on the expected impact force exposure level in octave bands and the impact force of the rubber ball as well as its material composition. However, no details are given on the verification procedures or equipment. In JIS A 1418-2:2018, there is a recommendation to use a force plate to measure the blocked force from at least 0.2 Hz to 1000Hz with a flat frequency response. The measurable range of force shall be at least 0 to 5000N, and the linearity within the range shall be ±2%, but it does not define the force plate itself. Annex A of ISO 16283-2:2015 states that the rubber ball only needs to be measured once after manufacture unless it is visibly cracked or damaged. Hence there is a need to give guidance on the measurement of the impact force for both manufacturers and test laboratories, preferably in an ISO Standard. This paper considers different types of force plates and considers factors influencing their accuracy, including potential issues with the resonance frequency of the plate and dif-ferent piezoelectric sensors.

Item Type:	Conference or Workshop Item (Unspecified)
Divisions:	Faculty of Humanities and Social Sciences > School of the Arts
Depositing User:	Symplectic Admin
Date Deposited:	30 Aug 2023 08:05
Last Modified:	01 Oct 2023 18:11
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3172362