Summary
samenvatting Akoestiek 2: H5: luchtgeluidisolatie
- Course
- Institution
samenvatting Akoestiek 2: hoofdstuk 5: luchtgeluidisolatie
[Show more]
Seller
Followamberseverens
Content preview
Akoestiek2022-2023: Pieter SCHEVENELS
Hoofdstuk 5_luchtgeluidisolatie
Inhoud
Belang v. controle v. luchtgeluidisola�e .......................................................................................................................... 2
• Luchtgeluid ......................................................................................................................................................... 2
• Luchtgeluidisola�e .............................................................................................................................................. 2
Grootheden .................................................................................................................................................................... 2
• Geluidverzwakkingsindex 𝑅𝑅 ................................................................................................................................ 2
• In situ: verschillende mog. wegen voor geluid om v. punt A n. B te gaan............................................................ 3
• Geluiddrukniveauverschil tss twee ruimtes 𝐷𝐷𝐷𝐷𝐷𝐷 ................................................................................................ 3
Normen........................................................................................................................................................................... 3
• Eengetalsaanduiding ........................................................................................................................................... 3
Directe geluidsoverdracht: geluidsisolerende construc�es............................................................................................. 4
• Enkele wanden .................................................................................................................................................... 4
− Coïnciden�e .................................................................................................................................................... 4
AANDACHTSPUNTEN BIJ ENKELE WANDEN ............................................................................................... 5
− (zeer ruwe) vuistregel ter bepaling van 𝑅𝑅𝑅𝑅 .................................................................................................... 5
− (zeer ruwe) vuistregel ter bepaling van 𝐷𝐷𝐷𝐷 indien geen schrijnwerk ............................................................. 5
− (zeer ruwe) vuistregel ter bepaling van 𝐷𝐷𝐷𝐷 indien wel schrijnwerk ............................................................... 5
• Dubbele wanden ................................................................................................................................................. 5
− Massa-veer-massaresonan�efrequen�e ......................................................................................................... 6
................................................................................................................................................................................ 7
− Coïnciden�edip bij dubbele wanden ............................................................................................................... 7
− Akoes�sche absorp�e in spouw ...................................................................................................................... 7
AANDACHTSPUNTEN DUBBELE WANDEN .................................................................................................. 7
• Voorzetwanden / -plafonds................................................................................................................................. 8
AANDACHTSPUNTEN DUBBELE WANDEN (voorzetwanden / -plafonds) .................................................. 8
• Lichte scheidingswanden (gipskarton) ................................................................................................................ 8
AANDACHTSPUNTEN DUBBELE WANDEN (lichte scheidingswanden) ....................................................... 8
• Akoes�sche deuren ............................................................................................................................................. 9
− Enkele deur ..................................................................................................................................................... 9
− Dubbele deur .................................................................................................................................................. 9
• Akoes�sche ramen .............................................................................................................................................. 9
− Enkel glas ........................................................................................................................................................ 9
− Dubbel glas ................................................................................................................................................... 10
− Voorzetraam ................................................................................................................................................. 10
Pagina 1 van 11
, Flankerende geluidoverdracht: elas�sche lagen ........................................................................................................... 10
• Flankerende transmissie ................................................................................................................................... 10
Oplossing .................................................................................................................................................. 11
Richtlijnen ..................................................................................................................................................................... 11
• Algemene richtlijnen ......................................................................................................................................... 11
• Meest nadelige situa�es (v. belangrijk n. minder)............................................................................................. 11
Belang v. controle v. luchtgeluidisola�e
→ Allerbelangrijkste = GEEN LEKKEN! (anders doen alle andere dingen er niet toe)
• Luchtgeluid
= Trillingen in lucht als gevolg v. trilbron (mensen, luidspreker, muziekinstrument,…)
• Luchtgeluidisola�e
= Verhinderen v. luchtgeluidoverdracht tss 2 ruimtes
− Strengere eisen als
· Akoes�sche belas�ng in zendruimte = hoger
· Gewenst comfortniveau in ontvangstruimte = hoger
− Vooral lage frequen�es w doorgelaten
Grootheden
• Geluidverzwakkingsindex 𝑅𝑅
− W gemeten in labo: luidspreker in zendruimte met roze ruis (= alle frequen�es)
− R = reduc�on
1
− 𝑅𝑅 = 10 log [𝑑𝑑𝑑𝑑]
𝜏𝜏
𝐼𝐼𝑡𝑡
Met τ = transmissiecoëfficiënt: 𝜏𝜏 =
𝐼𝐼𝑖𝑖
→ # geluid dat door cons. gaat
→ Meer doorlaten = grote τ = slechte verzwakking = kleine R
VOORBEELDEN:
◦ τ = 0,001 R = 30 dB (nog volledig verstaanb.)
◦ τ = 0,0001 R = 40 dB
◦ τ = 0,000001 R = 60 dB (onhoorb.)
→ Hoe hoger, hoe beter
Pagina 2 van 11
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller amberseverens. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $11.81. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
52355 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now