Calculation of vibrations in the early design phase

Visa enkel post
dc.contributor.authorRasmark, Nils
dc.contributor.authorHellquist, Fredrik
dc.contributor.departmentChalmers tekniska högskola / Institutionen för mekanik och maritima vetenskapersv
dc.contributor.departmentChalmers University of Technology / Department of Mechanics and Maritime Sciencesen
dc.date.accessioned2019-07-03T14:49:03Z
dc.date.available2019-07-03T14:49:03Z
dc.date.issued2018
dc.description.abstractBuildings exposed to vibrations from heavy road or train traffic do not normally risk being damaged, but the vibrations can cause discomfort to the users. Performing a detailed dynamic analysis is expensive and time consuming. Consequently, they are rarely performed with regard to comfort vibrations. Fagerström and Lindorsson (2017) studied a simple method of analysing beams and frame structures with respect to comfort vibrations. As a continuation of their work, this thesis aims to further develop a simple and effective method for studying comfort vibrations of buildings by incorporating plates into the method. In addition, it is investigated if the vibration of a plate can be predicted by interpolation of the known vibrations of similar plates. A calculation program in MATLAB is developed where the simplified analyses can be performed. The results are compared to analyses performed with a commercial FE program. The study shows a large spread in the results between the simple and the more advanced method. The behaviour of plates are more complicated than beams and requires a higher understanding to be able to interpret the results correctly. If one takes careful measures with regards to the mesh, the dominant frequency range of the applied response spectrum and the natural frequencies of the studied plates, the simplified method provides results with reasonable accuracy. The study also shows that an interpolation between plates with similar geometry and boundary conditions to obtain the response is not easily performed, due to relatively small parameter differences potentially causing profound changes in the behaviour.
dc.identifier.urihttps://hdl.handle.net/20.500.12380/255552
dc.language.isoeng
dc.relation.ispartofseriesExamensarbete - Institutionen för mekanik och maritima vetenskaper : 2018:55
dc.setspec.uppsokTechnology
dc.subjectBuilding Futures
dc.subjectSamhällsbyggnadsteknik
dc.subjectTeknisk mekanik
dc.subjectBuilding Futures
dc.subjectCivil Engineering
dc.subjectApplied Mechanics
dc.titleCalculation of vibrations in the early design phase
dc.type.degreeExamensarbete för masterexamensv
dc.type.degreeMaster Thesisen
dc.type.uppsokH
local.programmeStructural engineering and building technology (MPSEB), MSc
Ladda ner
Original bundle
Visar 1 - 1 av 1
Bild (thumbnail)
Namn:
255552.pdf
Storlek:
6.77 MB
Format:
Adobe Portable Document Format
Beskrivning:
Fulltext
Ladda ner
Samling
Examensarbeten för masterexamen