Branddetektering med ljud i enkla träelement
(2024) In LUTVDG/TVBB VBRM01 20222Division of Fire Safety Engineering
- Abstract
- In this thesis, it is examined how acoustic emissions produced by temperature changes in materials can be used to detect hidden structural fires. Experiments has been carried out with the aim of studying the possibilities of identifying the direction of the sound source in various wooden elements using contact microphones. The results shows that the method is valid in simpler wooden structures, but further processing of data is necessary for more complex wooden designs.
Further studies have been carried out in this thesis with regard to the rescue services need for new methods regarding construction fires. As current methods are not perfect, they view sound as a good supplementary detection system.
Please use this url to cite or link to this publication:
http://lup.lub.lu.se/student-papers/record/9168949
- author
- Häggqvist, Madeleine LU and Tisell, Petter LU
- supervisor
- organization
- course
- VBRM01 20222
- year
- 2024
- type
- M2 - Bachelor Degree
- subject
- keywords
- Akustiska emissioner, kavitetsbrand, dolda bränder, konstruktionsbrand, ljuddetektion, branddetektion, triangulering, ljudhastighet, frekvensanalys, ljuddämpning
- publication/series
- LUTVDG/TVBB
- report number
- 5728
- other publication id
- LUTVDG/TVBB--5728--SE
- language
- Swedish
- id
- 9168949
- date added to LUP
- 2024-08-27 11:50:01
- date last changed
- 2024-08-27 11:50:01
@misc{9168949, abstract = {{In this thesis, it is examined how acoustic emissions produced by temperature changes in materials can be used to detect hidden structural fires. Experiments has been carried out with the aim of studying the possibilities of identifying the direction of the sound source in various wooden elements using contact microphones. The results shows that the method is valid in simpler wooden structures, but further processing of data is necessary for more complex wooden designs. Further studies have been carried out in this thesis with regard to the rescue services need for new methods regarding construction fires. As current methods are not perfect, they view sound as a good supplementary detection system.}}, author = {{Häggqvist, Madeleine and Tisell, Petter}}, language = {{swe}}, note = {{Student Paper}}, series = {{LUTVDG/TVBB}}, title = {{Branddetektering med ljud i enkla träelement}}, year = {{2024}}, }