RESEARCH ON PROPAGATION CHARACTERISTICS OF GUIDED WAVE IN RAIL EXCITED BY LOW-FREQUENCY PIEZOELECTRIC TRANSDUCER

被引：0
|
作者：
Huo, Yu-sen [1 ]
Wu, Di [1 ]
Wei, Deng [1 ]
Xue, Hua [1 ]
Wang, Ya-ping [1 ]
Teng, Yong-ping [1 ]
机构：
[1] Beijing Jiaotong Univ, Dept Phys, Beijing 100044, Peoples R China
来源：
2014 SYMPOSIUM ON PIEZOELECTRICITY, ACOUSTIC WAVES, AND DEVICE APPLICATIONS (SPAWDA) | 2014年
关键词：
Piezoelectric transducer; Sandwich transducer; Guided wave; Damped loss factor; Decay rate of rail;
D O I：
暂无
中图分类号：
TP301 [理论、方法];
学科分类号：
081202 ;
摘要：
This short paper introduced the piezoelectric sandwich transducer and obtained the vibration ratio between the front and back metal covers according to the electromechanical equivalent circuit derived by force and electric analogy method. The transducer's resonance frequency is calculated using MATLAB programming, following by an experiment performed on a 1.5m long 50kg / m rail under laboratory conditions. The rail's equivalent damped loss factor was measured and the attenuation curve was plotted using a sandwich transducer and a 352C33 low frequency acceleration sensor as excitation and receiving units respectively.
引用
收藏
页码：457 / 460
页数：4
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