Određivanje koeficijenta apsorpcije zvuka višeslojnog zida

master's thesis

• Title (english): Determining the sound absorption coefficient of a multi-layer wall
• Author: Franko Lončar
• Mentor: Branimir Šafran (mentor)
• Mentor: Kristijan Radmanović (komentor)
• Committee member: Branimir Šafran (predsjednik povjerenstva)
• Committee member: Kristijan Radmanović (član povjerenstva)
• Committee member: Matija Jug (član povjerenstva)
• Granter: University of Zagreb; Faculty of Forestry and Wood Technology; (Institute of Processes Engineering); Zagreb
• Defense date and country: 2024-09-25, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Wood Technology

Abstract

Svijest o prednostima zelene gradnje, drvu i materijalima na bazi drva daje prednost primjene u mnogim industrijskim granama, zbog čega se nameće potreba za bržim i preciznijim određivanjem njihovih akustičnih svojstava. U ovom diplomskom radu pomoću impedancijske cijevi odredit će se koeficijent apsorpcije zvuka višeslojnog zida u frekventnom rasponu od 50 do 1600 Hz. Zid se sastoji od osam slojeva: dva sloja sendvič ploče, dva sloja OSB ploče, dva sloja staklene vune i dva sloja furnirske ploče. Odredit će se koeficijent apsorpcije zvuka za svaki sloj zasebno.

Abstract (english)

Awareness of the advantages of green construction, wood and wood-based materials gives preference to application in many industrial branches, which is why there is a need for faster and more precise determination of their acoustic properties. In this thesis, the sound absorption coefficient of a multi-layer wall in the frequency range from 50 to 1600 Hz will be determined using impedance tubes. The wall consists of eight layers: two layers of sandwich panels, two layers of OSB panels, two layers of glass wool and two layers of plywood panels. The sound absorption coefficient will be determined for each separate layer.

• Keywords: Koeficijent apsorpcije zvuka; akustična svojstva; impedancijska cijev; kompozitni materijali
• Keywords (english): sound absorption coefficient; acoustic properties; impendence tube; composite materials
• Language: croatian
• URN:NBN: urn:nbn:hr:108:391008
• Study programme: Title: Graduate Studies of Wood Technology Processes; Study programme type: university; Study level: graduate; Academic / professional title: sveučilišni/a magistar/magistra inženjer/inženjerka drvne tehnologije (sveučilišni/a magistar/magistra inženjer/inženjerka drvne tehnologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2024-10-11 10:38:19