Application of Ultrasonic Technique for Measurement of Instantaneous Burn Rate of Solid Propellants .
Abstract
The ultrasonic pulse-echo technique has been applied for the measurement of instantaneous burnrate of aluminised composite solid propellants. The tests have been carried out on end-burning 30 mmthick propellant specimens at nearly constant pressure of about 1.9 MPa. Necessary software forpost-test data processing and instantaneous burn rate computations have been developed. The burnrates measured by the ultrasonic technique have been compared with those obtained from ballisticevaluation motor tests on propellant from the same mix. An accuracy of about +- 1 per cent ininstantaneous burn rate measurements and reproducibility of results have been demonstrated byapplying ultrasonic technique.References
Strand, L.D.; Schultz, A.L. & Reedy, G.K.Microwave doppler shift technique for determining solid propellant transient regression.rates. J Spacecraft Rockets, 1974,11(2),75-83.
Strand, L.D. & McNamara, R.P. A variable frequency driver-rnicrowave transient regression rate measurement system. AIAA 14th Aerospace Sciences Meeting, American Institute of Aeronautics and Astronautics, Washington, 1976.Paper No. AIAA- 76-105,
Kuentzman, P.; Demafls, J.C. & Cauty, F.Ultrasornc measurement of solid propellant burning rate. La Recherche Aerospatiale, 1979,1, 71-90.
Traineau, J .cl. & Kuentzman, P. Some measurements of solid propellant burning rates in nozzleless motors. AIAA/SAE/ASME 2Oth Joint Propulsion Conference/ American Institute of Aeronautics and Astronautics, Cincinnati, Ohio,1984. Paper No. AIAA-84-1469.
Traineau, J.cl. & .Kuentzman, P. .Ultrasonic measurement of solid propellant bummg rates in nozzlelessrocket motors. J Propul. Power, 1986, 2(3), 215-22.
ThjkStra, F.; Korting, P. & van den Berg, R.Ultrasonic regression rate measurement in solid fuel ramjets. AIAA/SAE/ ASME/ ASEE 26th Joint Propulsion Conference, American Institute of Aeronautics and Astronautics, Orlando, Florida 1990. Paper No. AIAA- 90-1963.
Where otherwise noted, the Articles on this site are licensed under Creative Commons License: CC Attribution-Noncommercial-No Derivative Works 2.5 India