As mentioned above, three parameter VFD model can characterize the viscoelasticity of solid propellant. Applied it to SRM dynamic analysis, time and frequency domain response can be calculated.

• 综上所述,三参数VFD模型能够很好的反映推进剂的粘弹特性,将它用于固体发动机动力学分析,可以得到药柱在时域和频域内的动态响应。