Update on the structureborne noise standard structures

Abstract

In 1994 the authors, along with a number of interested parties, established a set of structures of increasing complexity intended to be used as standards for investigating structureborne noise prediction techniques. The structures are: a T-beam, a ribbed panel and an acoustic enclosure. This activity was jointly sponsored by Technical Committees of the Institute of Noise Control Engineers (Prediction and Modeling) and the Acoustical Society of America (Structural Acoustics and Vibration). With the assistance of funding from the Structural Acoustics Branch of the NASA Langley Research Center, these structures have been built and experimentally characterized by various interested parties with the intention of providing a baseline check for the various analytical methods. This paper will introduce the structures and present the results which have been obtained thus far in this investigation, thereby creating the framework for viewing the more recent work to be presented by other authors within this session.