The natural vibration problem of the rod can be treated by discretion as a natural vibration problem of a spring-masssystem, using finite element method or finite difference method.
杆件的固有振动问题，可用有限元方法或差分法离散化为一个弹簧-质点串联系统的固有振动问题。
2
If these conditions are satisfied, the simply connected spring-masssystem may be constructed uniquely. An algorithm is used to construct the physical realizable system from the data.
如果这些条件得到满足，则可惟一地构造简单连接弹簧-质点系统，并给出了构造真实物理系统的一个算法。
3
Helical springmasssystem (HSMS) is widely used in almost all of mechanical and electrical products due to its structure feature and elastic buffer ability.