Accession Number : AD0284634

Title :   EXPERIMENTS FOR THE MEASUREMENT OF THE ACOUSTIC IMPEDANCE OF A BURNING SOLID PROPELLANT

Corporate Author : THIOKOL CHEMICAL CORP ELKTON MD

Report Date : 21 DEC 1961

Pagination or Media Count : 1

Abstract : This report describes the research program to measure the acoustic impedance of a burning solid propellant. Based on the theoretical evaluation and confirming experimental studies, a large pressure chamber and a supporting gas pressurizing system were designed. The acoustic equipment is enclosed in the pressurized chamber to permit better control of the static pressure and is a simple means of equalizing the static pressure on both faces of the acoustic diaphragm. A chamber volume of approximately 5.5 cu ft was selected. Instrumentation and associated recording equipment for the active tests were incorporated into the experimental setup. Components are being fabricated and assembled. Diagrams of the experimental apparatus are presented, and supporting laboratory studies are described. (Author)

Descriptors :   *ACOUSTIC IMPEDANCE, *COMBUSTION, *INSTRUMENTATION, *SOLID ROCKET PROPELLANTS, ACOUSTICS, BIBLIOGRAPHIES, DESIGN, NOISE, PRESSURE, PRESSURE REGULATORS, PRESSURE VESSELS, STATICS, TEST EQUIPMENT.

Distribution Statement : APPROVED FOR PUBLIC RELEASE