1.Research Center of Sensor Technology, Beijing Information Science & Technology University, Beijing 100192, China;
2.Beijing Key Laboratory for Optoelectronic Measurement Technology, Beijing Information Science & Technology University, Beijing 100192, China;
3.Key Laboratory of Modern Measurement & Control Technology, Ministry of Education, Beijing Information Science and Technology University, Beijing 100192, China
The shear vibration modes (d15 mode) of piezoelectric ceramics have many advantages, such as high electromechanical coupling coefficient, generally higher piezoelectric constant, low frequency constant, and dielectric constant.It thus has a good performance in piezoelectric energy collector and new structural composite transducers.The shear vibrations generated by the piezoelectric ceramics were converted into the thickness vibration of the composite with designing a transition layer with a special structure.At the same time, this transition layer meets the requirements to radiate underwater longitudinal wave, and thus improves the piezoelectric properties of composite materials.The impact of the transition layer material types on the overall performance of the composite material was studied through the finite element analysis and experiments.
贾俊博1,2,秦雷1,2,3,,仲超1,王丽坤1,2,3. 基于剪切振动模态的压电复合材料应用于水声换能器的研究[J]. 振动与冲击, 2019, 38(8): 193-197.
JIA Junbo1,2,QIN Lei1,2,3,ZHONG Chao1,WANG Likun1,2,3 . A study of underwater transducers based on piezoelectric composites working at shear vibration modal. JOURNAL OF VIBRATION AND SHOCK, 2019, 38(8): 193-197.
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