measurement of amplitude modulation and dispersive effect of nonlinear resonant oscillations

非线性谐振振荡的幅度调制和色散效应的测量

• 批准号: 20760103
• 负责人: KURIHARA Eru
• 金额: $ 1.5万
• 依托单位: Hokkaido University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2008
• 资助国家: 日本
• 起止时间: 2008 至 2009
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20760103/
• 关键词: 音響; 非線形音波; 衝撃波; 分散性; 共鳴

Measurement of dispersion effect of resonant cylindrical waves is performed by using the cylindrical transducer. The amplitude modulation due to the dispersive effect of the resonant gas oscillations was found through the experiment. Spatial distribution of the resonant wave was observed by the particle in the resonator. The experiment revealed that the dispersion effect associated with the amplitude modulations. Since the period of the modulation is consistent with the results of both theoretical and numerical analysis, the presence of the dispersion effect resulting from the geometry of the sound field was shown experimentally.

利用该换能器对谐振柱面波的色散效应进行了测量。通过实验发现了气体共振振荡的色散效应对振幅的调制作用。共振波的空间分布由共振器中的粒子观察到。实验结果表明，色散效应与振幅调制有关。由于调制的周期与理论和数值分析的结果一致，因此实验表明了声场几何形状引起的色散效应的存在。

项目成果

円筒音波の非線形共鳴現象における振幅変調計測

圆柱声波非线性共振现象中的调幅测量

• 发表时间: 2009
• 作者: T. Sugawara;M. Ruet;K. Ito;H. Miki;T. Takeno;J. Fontaine;M. Belin;T. Takagi;栗原央流
• 通讯作者: 栗原央流

Numerical simulation of nonlinear resonant oscillations in an elliptical cylinder

椭圆柱体非线性共振的数值模拟

• 发表时间: 2012
• 期刊: Proc. ISNA
• 作者: Joon-wan Kim;Shinichi Yokota;Kazuya Edamura;Hiroki Tomori,Taro Nakamura,;川口雅弘;E. Kurihara
• 通讯作者: E. Kurihara

Nonlinear analysis of resonant sound wave excited in an elliptical cylinder

椭圆圆柱体中激发的谐振声波的非线性分析

• 发表时间: 2008
• 作者: T. Kanagawa;E. Kurihara
• 通讯作者: E. Kurihara