UNIDAD II

USO Y MANEJO DEL DICCIONARIO


Blomshield, Fred S AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, 37th, Salt Lake City, UT; UNITED STATES; 8-11 July 2001. 2001

Over the last 40 years, many solid rocket motors have experienced combustion instability. Combustion instability is the interaction of a motor's inherent oscillatory modes with the combustion and/or fluid dynamic processes inside the motor combustion chamber. If only a small amount of available energy, less than one percent, is diverted to an acoustic mode, combustion instability can be generated. Standard Missile, Sidewinder, Harm, Trident, Hellfire, and Minuteman, just to name a few, have experienced pressure oscillations sometime during their development and life. Combustion instability can lead to ballistic pressure changes, can couple with other motor components, such as guidance or thrust vector control, and in the worst case, cause motor structural failure. Combustion instability in a motor can cost motor developers millions of dollars to eliminate. Sometimes, combustion instability, although present, does not cause system problems and can be tolerated in a motor. In these cases, it still must be characterized and understood. The purpose of this paper is to review 28 of these motors and what solutions were used. It is hoped that some of the lessons learned in the past can be applied to future motors.
Taken from: Blomshield, Fred S. (2001).“Historical perspective of combustion instability in motors - Case studies”. Buscador Scholar Google. http://md1.csa.com/partners/viewrecord.php?requester=gs&collection=TRD&recid=200162022335CE&recid=200113011103MT&recid=A0134508AH