The test results show that : 1 . under giving conditions , two explosives with the same atomic number ratio have similar combustion performances , 2 . the pressed charge and the powder charge shows observably different combustion characteristics , 3 . within 211 . 7 m - 635 . 0 m , decreasing the grain size may enhance combustion velocity 通过对测试结果的分析表明，在特定条件下具有相同原子组成比例的炸药，其燃烧性能相近；同种炸药的药柱和药粉燃烧性能差异较大；在211 . 7 635 . 0 m范围内， hmx 、 rdx颗粒越细，燃烧越快。
In conclusion , viscoelastic uncertain structural analysis methods have been successfully established for srm grain . some developments have been gained both in methods and applications . the research in this paper lays a foundation for further investigation of practical srm grain structures 国防科学技术大学研究生院学位论文总之，本文较成功地建立了固体火箭发动机药柱的粘弹性不确定结构分析理论，在方法和应用上都取得了一定的进展，为进一步研究和分析实际药柱结构奠定了基础。
In the analysis ansys6 . 0 is used . two grain fem modals are used to figure out the stress and strain under different load case , including inertial force in radius direction , inertial force in axis direction and colligating the two inertial force . last , the result is compared with the result of analytic method 在不同的受载条件下，求出药柱应力场和变形，包括只受径向惯性力，只受轴向惯性力及径向轴向惯性力综合作用下的应力应变分布并与解析方法相比较，得出了较为合理的结果。
