Hang masses from springs and adjust the springstiffness and damping.
用质量吊起物质，并调节弹簧的硬度和阻尼。
2
And it also discussed the distribution of springstiffness both at the top and the bottom in designing the springs of the vibration hammer.
从振体处于一定位置时弹簧压缩量考虑，探讨了振动锤弹簧设计中，上、下弹簧刚度的分配问题。
3
When the support springstiffness gets larger and larger, the rigid body mode characteristic will diminish as the flexible characteristic becomes more pronounced.