带有两个压电换能器的弹性圆柱壳的水平剪切振动。
Shear-horizontal vibration of an elastic circular cylindrical shell with two piezoelectric transducers.
作者信息
Yang Feng, Hu Yuantai, Yang Jiashi
机构信息
School of Civil Engineering and Mechanics, Huazhong University of Science and Technology, Wuhan, Hubei, China.
出版信息
IEEE Trans Ultrason Ferroelectr Freq Control. 2009 Aug;56(8):1708-15. doi: 10.1109/TUFFC.2009.1235.
We analyze the excitation and detection of shear-horizontal vibrations in a circular cylindrical elastic shell with 2 piezoelectric actuators, one for excitation and the other for detection. The equations of linear elasticity and linear piezoelectricity are used. The mathematical problem is solved using trigonometric series. Basic vibration characteristics including resonant frequencies, mode shapes, and electric output are calculated. It is found that significant responses occur near resonances. The displacement distribution in the elastic shell is particularly strong under and close to the exciting transducer.
我们分析了具有两个压电致动器的圆柱弹性壳中水平剪切振动的激发和检测，其中一个用于激发，另一个用于检测。使用了线性弹性和线性压电性方程。通过三角级数求解数学问题。计算了包括共振频率、振型和电输出在内的基本振动特性。发现共振附近会出现显著响应。弹性壳中的位移分布在激励换能器下方及附近尤为强烈。
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