Power balance methods to estimate junction attenuation in lightweight constructions

Authors

  • Trevor R.T. Nightingale Inst. for Research in Construction, National Research Council, Ottawa, Ont. K1A OR6, Canada
  • Ivan Bosman Inst. for Research in Construction, National Research Council, Ottawa, Ont. K1A OR6, Canada

Keywords:

Accelerometers, Acoustic variables measurement, Buildings, Concretes, Damping, Reverberation, Structural frames, Junction attenuation measurement, Lightweight construction, Power balance methods, Velocity level difference (VLD)

Abstract

A power balance method to estimate junction attenuation in a lightweight-framed construction was investigated. Velocity level difference (VLD) was measured and variance in these measurements was related to the attenuation. Additional attenuation in the surface, which is a complex function of damping and size and spacing of joists, increased the measured VLD which made the measurements very sensitive to accelerometer location. Work is still in progress to determine a suitable in-situ test method for lightweight framed construction.

Additional Files

Published

2000-09-01

How to Cite

1.
Nightingale TR, Bosman I. Power balance methods to estimate junction attenuation in lightweight constructions. Canadian Acoustics [Internet]. 2000 Sep. 1 [cited 2026 Apr. 28];28(3):12-3. Available from: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1269

Issue

Vol. 28 No. 3 (2000)

Section

Proceedings of the Acoustics Week in Canada

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