Analysis of the temperature field of artillery missile SRMs grain under high overload
The high overload during launching of artillery missiles will cause friction between the grain and case of the solid rocket motor (SRM); the increase of temperature caused by friction may bring about the grains unexpected ignition.To analyze and solve this problem, the temperature field of the grain which is produced by the high overload was simulated numerically by finite element method.First, we analyzed the overall distribution of the temperature field of the grain, and then the effect on the temperature field of the grain under different elasticity modulus, density, and the gap size between the grain and case was analyzed.The result shows that the highest temperature is distributed in the inner and outer sides of grain on the bottom, while the temperature on the lateral faces is relatively lower.As the modulus and density of the grain increases, the peak of the temperature decreases significantly.In addition, the peak temperature on the bottom also changes with the difference of the gap size between the grain and case.
solid rocket motor high overload temperature
WU Linlong LIU Jiansong SUI Xin LI Shipeng WANG Ningfei
School of Aerospace Engineering,Beijing Institute of Technology,Beijing 100081,China
国际会议
成都
英文
467-472
2013-09-24（万方平台首次上网日期，不代表论文的发表时间）