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《Chinese Journal of Explosives & Propellants》 2006-01
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Investigation on the Thermal Safety of Solid Rocket Motor

LI Gao-chun~1,YUAN Shu-sheng~1,YUAN Song~2(1.Department of Aircraft Engineering,Naval Aeronautical Engineering Institute,Yantai Shandong 264001,China;2.The Navy Missile Motor Representation to Xi′an,Xi′an 710025,China)  
The heat transfer through the case and liner of a solid rocket motor to the outside of the propellant grain was simulated numerically by use of the thermal conductivity equation with source term.The characters of propellant combustion by the action of environmental heat source were analyzed and the critical temperature of thermal hazard and the delay time of ignition were obtained.The results show that the heat transfer process of solid rocket motor subjected to the outside heat source can be simulated numerically by use of the thermal conductivity equation with chemical source term.The critical temperature of propellant is 520~525K and the delay time of ignition decreases with increasing the outside flame temperature.
【CateGory Index】: V435
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