Journal ArticleDOI
Direct Evidence of Spatial Burning Rate Variation as Cause of Midweb Anomaly
TLDR
In this article, local burning rates were measured at different radial locations across the web during static tests of center-perforated solid propellant rocket motor grains, showing a higher burning rate in the midweb region and a lower burning rate toward the port and motor case.Abstract:
With the use of the ultrasonic pulse-echo technique, local burningrates aremeasured at different radial locations across the web during static tests of center-perforated solid propellant rocket motor grains. The measurement shows a higher burning rate in the midweb region and a lower burning rate toward the port and motor case. The measured motor pressure history could be very well simulated by using the measured local burning rates. Thus, direct evidence is provided that the variationof the burning rate across the web is the cause of themidweb anomaly in chamber pressure widely reported in solid motors with center-perforated grains.read more
Citations
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Journal ArticleDOI
Industrial Adaptation of Ultrasonic Technique of Propellant Burning Rate Measurement Using Specimens
TL;DR: In this article, a method of solid-propellant burning rate measurement by ultrasonic technique using small cylindrical specimens was developed for routine measurements required in the solid propellant manufacturing industry.
Journal ArticleDOI
Burning rate anomaly of composite propellant grains
TL;DR: In this article, the effects of the geometry of the isochrone surface of the propellant slurry and the viscosity of the slurry on the burning rate of composite propellant grains are investigated.
Journal ArticleDOI
Advanced Computer Science on Internal Ballistics of Solid Rocket Motors
Toru Shimada,Kazushige Kato,Nobuhiro Sekino,Nobuyuki Tsuboi,Yoshio Seike,Mihoko Fukunaga,Yu Daimon,Hiroshi Hasegawa,Hiroya Asakawa +8 more
TL;DR: In this article, a numerical simulation system called Advanced Computer Science on SRM Internal Ballistics (ACSSIB) was developed for improving the performance and reliability of solid rocket motors (SRM).
Proceedings ArticleDOI
The Ultrasound Waves: A Measurement Tool for Energetic Material Characterization
TL;DR: In this paper, the authors give an overview of the various applications of the ultrasound measurement technique (UMT) applied to energetic material combustion study and the main application is the solid propellant regression rate determination.
Correlation of Midweb Anomaly with Microstructure of Composite Propellant
TL;DR: In this paper, the authors investigated correlation between the orientation of submillimeter AP particles and the local burning rate, and the data of the local burn rate and the orientation data were arranged and evaluated.
References
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Journal ArticleDOI
Ultrasonic Measurements of Solid Propellant Burning Rates in Nozzleless Rocket Motors
TL;DR: In this article, the instantaneous web thickness of the propellant is measured by ultrasonic transducers that detect the instantaneous grain deflection during motor pressurization, and the results reveal that the generally observed trends of threshold specific mass flow rate, no-crossflow burning rate sensitivity, and scale dependence are also demonstrated in nozzleless motors.
Proceedings ArticleDOI
Differences between actual and predicted pressure-time histories of solid rocket motors
T. Kallmeyer,L. Sayer +1 more
Proceedings ArticleDOI
Ballistic anomaly trends in subscale solid rocket motors
C. Beckman,R. Geisler +1 more
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