This paper establishes the vibratorymotion equation of two kinds of core-tube suspension structure, derives rigidity matrix ;
本文针对两类核筒悬挂结构建立了振动方程，推导了刚度矩阵；
2
Damping: in physics, the restraint of vibratorymotion, such as mechanical oscillations, noise, and alternating electric currents, by dissipating energy.
阻尼：物理学中，指因能量耗散使振荡、噪音、交流电之类的振动所受到的遏制。
3
The relationship between the volumetric deformations of sand for different number of cycles of vibratorymotion and input accelerations and its dependence on input frequency are investigated.