| Download | - View accepted manuscript: Approaches for estimating flanking transmission for heavy impact sources (PDF, 657 KiB)
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| Author | Search for: Schoenwald, S.1; Search for: Nightingale, T. R. T.1; Search for: Zeitler, B.1; Search for: King, F.1 |
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| Affiliation | - National Research Council of Canada. NRC Institute for Research in Construction
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| Format | Text, Article |
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| Conference | Inter-Noise 2010: 13 June 2010, Lisbon, Portugal |
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| Subject | building acoustics; wood frame; impact sound; flanking transmission; Floors |
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| Abstract | Flanking transmission exists in all buildings and its importance relative to direct transmission is determined by the quality of the acoustical design. The ISO 10848 standard has been created to provide estimates flanking transmission from airborne and the ISO tapping machine. Currently this method is unproven for impact flanking transmission at low frequencies, especially from heavy/soft impact sources like the 'bang machine' and 'rubber ball' impact sources. This paper assesses three methods. The first and straight forward method obtains results by suppressing all transmission paths except for the one(s) of interest. The second obtains results by using two sets of data (one including the transmission path(s) of interest and the other not) and indirectly assigning the change in transmitted sound power to the path(s) suppressed. The third, a new approach, is presented that is found to be considerably more accurate and easier to apply when flanking elements and junction are symmetric. Results for the various approaches are presented when applied to wood-frame construction, and limitations of each approach are discussed. |
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| Publication date | 2010-06-13 |
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| In | |
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| Language | English |
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| Peer reviewed | No |
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| NRC number | NRCC 53565
NRC-IRC-21236 |
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| NPARC number | 20374979 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 2cb767ce-6412-46b6-a3da-d640940e38df |
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| Record created | 2012-07-23 |
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| Record modified | 2020-07-14 |
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