@article {Hirakawa:2020:0736-2935:1213,
title = "Re-considering the impedance method used to predict impact sound insulation from heavy impacts",
journal = "INTER-NOISE and NOISE-CON Congress and Conference Proceedings",
parent_itemid = "infobike://ince/incecp",
publishercode ="ince",
year = "2020",
volume = "261",
number = "5",
publication date ="2020-10-12T00:00:00",
pages = "1213-1222",
itemtype = "ARTICLE",
issn = "0736-2935",
url = "https://ince.publisher.ingentaconnect.com/content/ince/incecp/2020/00000261/00000005/art00026",
author = "Hirakawa, Susumu and Hopkins, Carl",
abstract = "In Japan, the "impedance method" is commonly used to predict the Fast time-weighted maximum sound pressure level in a receiving room due to a heavy impact in accordance with the measurement procedure of JIS A 1418-2:2000, (updated to JIS A 1418-2:2019). The original purpose
of the model was to allow designers to estimate the impact sound insulation performance of a heavyweight floor structure at the design stage to reduce the floor impact sound levels. Although the impedance method and related papers report agreement with measurements, the method lacks a formal
derivation. This paper investigates the origins of the impedance model and compares it with two models derived from SEA for a plate, and a mass-spring-dashpot system representing the fundamental bending mode of the floor.",
}