扬琴弦振动的力学分析

The Mechanical Analysis of the String Vibration of Dulcimer

扬琴弦的振动属于有界弦的自由振动,利用数理方程,分别分析使用平面锤、凸面锤和细棒敲击弦时,弦的振动方程,说明用锤敲击时产生的n次谐波衰减迅速,而细棒敲击时n次谐波衰减缓慢,因此为保证声音清脆悦耳,使用扬琴时必须用锤而不可用细棒.

The vibration of strings in dulcimers is free vibration. The vibration equations are analyzed by using mathematical physics equations when the strings are played with a plane hammer, protruding hammer and bar. It＇s found that the harmonics with n- power trail off quickly played with a hammer but slowly with a bar. A hammer must be used instead of a bar so as to ensure its melodious.