粘弹性分析采用特殊的三元素标准线性固体模型拟合实验数据。
Viscoelasticity was analyzed by the special three element standard linear solid model.
基于不可压和近似不可压粘弹性有限元法，对固体火箭发动机药柱进行了三维分析。
Three-dimension analysis of solid rocket motor grain was presented based on incompressible and nearly incompressible viscoelastic finite element method.
固体火箭推进剂是一种粘弹性高聚物，同时又是颗粒基复合材料。其断裂实验难度较大。
Solid rocket propellant is a kind of high filled granular composite with viscoelastic behavior so that the experimental researches on its fracture are very difficult.
并运用三维线性粘弹性有限元模型，对离心实验过程进行了数值模拟，以确定固体推进剂药柱在轴向过载作用下的变形问题。
Using three dimensional linear viscoelasticity finite element model, numerical simulation was performed. The deformation of solid propellant grain under axial acceleration was investigated.
基于粘弹性随机有限元法（VSFEM）和多项式回归模型，分析了固体火箭发动机药柱结构的随机参数灵敏度。
Stochastic parameter sensitivity of SRM grain structure was analyzed based on viscoelastic stochastic finite element method(VSFEM) and polynomial regression model.
在此基础上，用类似粘弹性三元件固体模型的形式去拟合离散的数值结果，得到了松弛模量更简单的解析表达式。
On base of those, effective relaxation moduli could be curve-fitted by the function form of the three-parameter solid model.
在此基础上，用类似粘弹性三元件固体模型的形式去拟合离散的数值结果，得到了松弛模量更简单的解析表达式。
On base of those, effective relaxation moduli could be curve-fitted by the function form of the three-parameter solid model.
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