Research on propagation characteristics of guided wave in rail excited by low-frequency piezoelectric transducer

Author

Yu-sen Huo ; Di Wu ; Deng Wei ; Hua Xue ; Ya-ping Wang ; Yong-ping Teng

Author_Institution

Dept. of Phys., Beijing Jiaotong Univ., Beijing, China

fYear

2014

fDate

Oct. 30 2014-Nov. 2 2014

Firstpage

457

Lastpage

460

Abstract

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.

Keywords

equivalent circuits; piezoelectric transducers; piezoelectricity; rails; sandwich structures; vibrations; MATLAB programming; attenuation curve; back metal cover; electric analogy method; electromechanical equivalent circuit; excitation unit; force analogy method; front metal cover; guided wave; laboratory conditions; low frequency acceleration sensor; low-frequency piezoelectric transducer; piezoelectric sandwich transducer; propagation characteristics; rail equivalent damped loss factor; receiving unit; transducer resonance frequency; vibration ratio; Ceramics; Mathematical model; Metals; Rails; Resonant frequency; Transducers; Vibrations; Damped loss factor; Decay rate of rail; Guided wave; Piezoelectric transducer; Sandwich transducer;

fLanguage

English

Publisher

ieee

Conference_Titel

Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA), 2014 Symposium on

Conference_Location

Beijing

Print_ISBN

978-1-4799-6424-6

Type

conf

DOI

10.1109/SPAWDA.2014.6998623

Filename

6998623