Sökning: onr:"swepub:oai:lup.lub.lu.se:4fedcfb2-1a6a-41c9-8db1-94cf384311a7" > Uncertainty quantif...
Fältnamn | Indikatorer | Metadata |
---|---|---|
000 | 03548naa a2200385 4500 | |
001 | oai:lup.lub.lu.se:4fedcfb2-1a6a-41c9-8db1-94cf384311a7 | |
003 | SwePub | |
008 | 230810s2023 | |||||||||||000 ||eng| | |
024 | 7 | a https://lup.lub.lu.se/record/4fedcfb2-1a6a-41c9-8db1-94cf384311a72 URI |
024 | 7 | a https://doi.org/10.1016/j.istruc.2023.04.1112 DOI |
040 | a (SwePub)lu | |
041 | a engb eng | |
042 | 9 SwePub | |
072 | 7 | a art2 swepub-publicationtype |
072 | 7 | a ref2 swepub-contenttype |
100 | 1 | a Lim, Hyeong Uku University of Texas at Austin4 aut |
245 | 1 0 | a Uncertainty quantification of wood floor system modal frequencies resulting from variable densities in members |
264 | 1 | c 2023 |
300 | a 10 s. | |
520 | a Low-frequency vibration in a multi-story wood building is of concern because failure in mitigation of such vibration may lead to occupant discomfort. Ultimately, it may cause damage to their health. Variability in material properties of the members of a wooden floor system significantly influences vibration response characteristics such as eigenfrequencies and mode shapes. In this study, we investigate the uncertainty in low-frequency characteristics of a selected wood floor system, resulting from uncertainty in the members’ material properties. We use a surrogate model developed using polynomial chaos expansion, based on a few training samples computed using a finite element model of an experimental-scale structure comprised of seven load-bearing joists of spruce. We estimate the hyperparameters needed for accurate surrogate model development and, with these, we predict probability distributions for each of the floor-system modal frequencies. Also, we perform local and global sensitivity analyses to assess how material property variation affects the modal frequencies. Results confirm the accuracy and efficiency of the developed surrogate models in prediction of the modal frequencies, resulting from uncertainty in wood material properties. The accuracy of the results is comparable to those based on more expensive Monte Carlo simulation. | |
650 | 7 | a TEKNIK OCH TEKNOLOGIERx Maskinteknikx Teknisk mekanik0 (SwePub)203012 hsv//swe |
650 | 7 | a ENGINEERING AND TECHNOLOGYx Mechanical Engineeringx Applied Mechanics0 (SwePub)203012 hsv//eng |
653 | a Modal frequencies | |
653 | a Monte Carlo simulation | |
653 | a Polynomial chaos expansion | |
653 | a Sensitivity analysis | |
653 | a Wood floor | |
700 | 1 | a Manuel, Lanceu University of Texas at Austin4 aut |
700 | 1 | a Persson, Peteru 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, LTH4 aut0 (Swepub:lu)bygg-ppr |
700 | 1 | a Andersen, Lars Vabbersgaardu Aarhus University4 aut |
710 | 2 | a University of Texas at Austinb Byggnadsmekanik4 org |
773 | 0 | t Structuresg 53, s. 1425-1434q 53<1425-1434x 2352-0124 |
856 | 4 | u http://dx.doi.org/10.1016/j.istruc.2023.04.111y FULLTEXT |
856 | 4 8 | u https://lup.lub.lu.se/record/4fedcfb2-1a6a-41c9-8db1-94cf384311a7 |
856 | 4 8 | u https://doi.org/10.1016/j.istruc.2023.04.111 |
Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.
Kopiera och spara länken för att återkomma till aktuell vy