Acoustic Testing of Simplified Cabin Box, Phase 1

摘要

Acoustic transmission loss and radiation efficiency properties of three different types of skin panels fitted to a simple box shaped framework (plain aluminum, aluminum with stringers, fibrelam) were measured. The plain aluminum skin is superior to the aluminum skin with stringers, which is superior to fibrelam (although doubts are expressed as to the validity and appropriateness of radiation efficiency measurements on a structure such as the box). Data was provided for correlation with SEA predictions, and the box is found to respond in a linear fashion to various levels of input force.