摘要
将古筝弦振动简化为有界弦振动模型，分别对拨弦和扫弦状态下弦的振动进行动力学分析。以拨弦为例，建立了弦振动通过琴码传递到古筝面板的动力学模型，并利用Matlab数值计算和实验测量进行验证。为古筝的弦振动和琴码传递过程的分析建立了理论模型，解决了古筝振动声学特性分析中的结构模型简化问题，为古筝的进一步的研究提供了参考。
Abstract
The Guzheng string vibration model have been simplified into the bounded string vibration model, and the dynamics analysis of the vibration of plucking and sweeping strings has been established firstly. Then, the dynamic model of the process has been built that the string vibration passes from the bridge to the Guzheng panel. Finally, the accuracy of the model proposed in this dissertation has been verified through the comparison of the numerical results of between using the Matlab simulation and the experiment. The work of this paper provides a reliable theoretical model for the analysis of the string vibrating and the bridge of Guzheng. And it solved the problem of the simplification of the structural model in analyzing the Guzheng vibro-acoustic characteristics, and will provide more or less support and guidance for improvement of future Guzheng.
关键词
古筝 /
有界弦振动 /
琴码 /
动力学模型 /
动力响应分析 /
实验验证
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Key words
Guzheng /
bounded string vibration /
bridge /
dynamics model /
analysis of the dynamic response process /
experimental verification
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邓小伟1，余征跃1，姚卫平1，陈民杰2.
古筝弦振动及琴码的动力学分析[J]. 振动与冲击, 2015, 34(18): 166-170
DENG Xiao-wei1 YU Zheng-yue1 YAO Wei-ping1 CHEN Min-jie2.
The Dynamic Analysis of Guzheng string vibration and Bridge[J]. Journal of Vibration and Shock, 2015, 34(18): 166-170
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参考文献
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