THEORETICAL AND EXPERIMENTAL MODEL INVESTIGATIONS OF SEMI-ANECHOIC AND SEMI-REVERBERANT ENVIRONMENTS AND THEIR APPLICATION TO THE RTD SONIC FATIGUE FACILITY
Abstract
A study of the acoustic environments that could be produced in the RTD Sonic Fatigue Facility was made using both theoretical methods and experimental modeling techniques. An analysis is presented which enables the semi-anechoic environment to be determined at any position in the facility. This analysis is verified experimentally. An experimental program also enabled the semi-reverberant environment to be established and revealed the part played by the absorbing treatment in determining this environment. Experimental programs investigated the sound fields on structures located in the facility under both modes of operation. A study of reflector devices used to modify acoustic environments was made and enabled limited prediction of their effects. An analysis of current service noise fields on aircraft structures enabled determination of values of the major parameters of these fields to be determined for use in simulation studies.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1966
- Accession Number
- AD0635808
Entities
People
- David F. Pernet
- Gale R. Hruska
Organizations
- IIT Research Institute