Autors: Djambova S., Pleshkova Sn., Nedkov Ts.
Title: LABORATORY SOUNDPROVED CHAMBER FOR EVALUATION OF SOUND INSULATION OF BUILDING PARTITION ELEMENTS
Keywords: sound insulation, sound proved chamber

Abstract: The building of a small soundproofed chamber is described. It is placed in an university lab to demonstrate the acoustic properties of samples from building materials. The aim is to evaluate sound transmission loss as difference in sound pressures and to teach UACG students about basic physical principles of sound – wall interaction. Some limitations are set by the small sizes of the chamber and of the test sample, therefore correct measurements can be done for sound frequencies above 1000 Hz. Sound transmission loss has experimentally been evaluated for the chamber walls and for two types of most used building partition elements. The experimental results agree very well with the theoretical ones, obtained with the help of INSUL software. The utilization of the lab sound proved chamber will increase the attention to life quality problems of environment like “noise contamination” and noise discomfort.

References

  1. EN ISO140-1:1997. Acoustics - Measurements of sound insulation in buildings and of building elements - Part 1: Requirements for laboratory test facilities with suppressed flanking transmission. 1997.
  2. Sharp B.H, 1978, Prediction Methods for the Sound Transmission of Building Elements, Noise Control Engineering, Volume Vol 11, no2, pp. pp.143-157
  3. Ballagh K.H, 2012, Sound Transmission trough Triple Panel Walls – Low Frequency Model, New Zealand, , <New Zealand>, IEEE Transactions
  4. Marshall Day Acoustics. INSUL V7.0 ”Sound Insulation Prediction Software”. 2012.
  5. Rindel J.H.. “Sound Radiation from Building Structures and Acoustical Properties of Thick Plates”. COMMET-SAVOIR Course, CSTB, 1995

Issue

, 2014, Albania,

Full text of the publication

Вид: публикация в национален форум с межд. уч., публикация в реферирано издание