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Predicting structur...
Predicting structure-borne noise in cross-laminated timber buildings during conceptual design
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- Flodén, O. (författare)
- Lund University,Lunds universitet,Byggnadsmekanik,Institutionen för byggvetenskaper,Institutioner vid LTH,Lunds Tekniska Högskola,Structural Mechanics,Department of Construction Sciences,Departments at LTH,Faculty of Engineering, LTH
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- Peplow, A. (författare)
- Lund University,Lunds universitet,Teknisk akustik,Institutionen för byggvetenskaper,Institutioner vid LTH,Lunds Tekniska Högskola,Engineering Acoustics,Department of Construction Sciences,Departments at LTH,Faculty of Engineering, LTH
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- Persson, P. (författare)
- Lund University,Lunds universitet,Byggnadsmekanik,Institutionen för byggvetenskaper,Institutioner vid LTH,Lunds Tekniska Högskola,Väg- och vattenbyggnad (CI),Utbildningsprogram, LTH,LTH profilområde: Cirkulär byggindustri,LTH profilområden,Structural Mechanics,Department of Construction Sciences,Departments at LTH,Faculty of Engineering, LTH,Civil Engineering (M.Sc.Eng.),Educational programmes, LTH,Faculty of Engineering, LTH,LTH Profile Area: Circular Building Sector,LTH Profile areas,Faculty of Engineering, LTH
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(creator_code:org_t)
- 2023
- 2023
- Engelska.
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Ingår i: Finite Elements in Analysis and Design. - 0168-874X. ; 225
- Relaterad länk:
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http://dx.doi.org/10... (free)
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- In this study, we investigate the feasibility of using a vibration-based metric for predicting low-frequency structure-borne noise in cross-laminated timber (CLT) buildings. The overall aim here is to facilitate the conceptual design for CLT buildings in terms of estimating noise levels. Since noise levels are inherently sensitive to architectural or mechanical design changes, in the low frequency regime, the problem of predicting these as a metric is well-known as a “high in computational cost” but “low in confidence solution” problem. Here, a reduced and robust prediction metric offers a way forward in estimating intrusive noise levels while capturing the effect of conceptual design changes. The degree of correlation between the vibration-based metric and the predicted noise levels was investigated by performing linear regression on datasets generated from a parameterised finite element model of a CLT building structure. A generally high degree of correlation between the vibration-based metric and the noise levels is observed. The effect of employing various frequency bands and sets of vibration evaluation points are investigated, and it is concluded that a high degree of correlation is obtained using only 3 × 3 vibration evaluation points per CLT panel.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Signalbehandling (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Signal Processing (hsv//eng)
Nyckelord
- Cross-laminated timber (CLT)
- Finite-element method
- Prediction metric
- Structural–acoustic analysis
- Structure-borne sound
- Timber buildings
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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