Design and Construction of an Innovative Sound Transmission Loss Testing Fixture

Paper #:
  • 2013-01-1963

Published:
  • 2013-05-13
DOI:
  • 10.4271/2013-01-1963
Citation:
Kolano, R., "Design and Construction of an Innovative Sound Transmission Loss Testing Fixture," SAE Technical Paper 2013-01-1963, 2013, doi:10.4271/2013-01-1963.
Pages:
6
Abstract:
This paper presents the design, construction, and implementation of a novel sound transmission loss (STL) testing fixture that is unique to the automotive industry. This fixture was built within a large 1.68 m high × 2.74 wide (5′6″ × 9′0″) opening in the wall between a 497 m3 (17,591 ft3) reverberation room and an adjacent anechoic chamber. The fixture was designed and built to accommodate interchangeable plugs that allow STL measurements on an automotive ‘buck’ as well as on flat sample materials. It features a removable sample holding frame system that simply and quickly clamps in place and acoustically seals with a pneumatically inflated seal.
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