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纵向驱动弦的次频振动实验分析
Experimental Analysis on Subharmonic Standing Wave Vibrations in Lengthways Driven Strings
【摘要】 讨论纵向驱动弦时的次频驻波振动现象,与弦运动轨迹的观察方法。根据弦运动轨迹,用仿真分析谐波振动可获得弦振动的有关物理信息。实验观察到,可出现非共振驻波(次频振动)振幅可比共振驻波振幅大的多现象。
【Abstract】 It presents an experimental technique to observe the vibration tracks of string standing waves,and a subharmonic vibration of strings. The amplitude of a non-resonance subharmonic standing wave may be greater than that of a resonance standing wave in a longitudinally driven string.
【关键词】 纵向驱动;
次频;
运动轨迹;
分频非共振固有振动;
【Key words】 subharmonics; motion traces of strings; longitudinally driven string; nonlinear coupling vibration; simulation;
【Key words】 subharmonics; motion traces of strings; longitudinally driven string; nonlinear coupling vibration; simulation;
【基金】 河南省科技厅自然科学基础理论项目(102300410179)
- 【文献出处】 大学物理实验 ,Physical Experiment of College , 编辑部邮箱 ,2015年06期
- 【分类号】O32
- 【被引频次】2
- 【下载频次】52