2015 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA)最新文献_第3页

Slowness surfaces study of the ferroelastic phase transition of LiCsSO4 crystal LiCsSO4晶体铁弹性相变的慢面研究

2015 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA) Pub Date : 2015-12-28 DOI: 10.1109/SPAWDA.2015.7364433

G. Zhou, Mei-ling Guo, Xue Bai, Jia Li

引用次数: 0

The development of SAW current sensor based on the magnetostrictive effect 基于磁致伸缩效应的SAW电流传感器的研制

2015 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA) Pub Date : 2015-12-28 DOI: 10.1109/SPAWDA.2015.7364514

Yana Jia, Wen Wang

引用次数: 1

Analysis of a novel longitudinal-bending hybrid ultrasonic motor using vibration coupling 一种新型纵弯混合超声电机的振动耦合分析

2015 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA) Pub Date : 2015-12-28 DOI: 10.1109/SPAWDA.2015.7364437

Yingxiang Liu, Chun-hong Li, Weishan Chen, Xiu-hua Ni, Jun-kao Liu

{"title":"Analysis of a novel longitudinal-bending hybrid ultrasonic motor using vibration coupling","authors":"Yingxiang Liu, Chun-hong Li, Weishan Chen, Xiu-hua Ni, Jun-kao Liu","doi":"10.1109/SPAWDA.2015.7364437","DOIUrl":"https://doi.org/10.1109/SPAWDA.2015.7364437","url":null,"abstract":"A novel longitudinal-bending (L-B) hybrid ultrasonic motor using vibration coupling is proposed. Different with the previous L-B ultrasonic motors, only longitudinal PZT plates are used; and the longitudinal-bending hybrid vibrations of the motor are excited synchronously. Fixed boundary condition is applied on one side surface of the flange, which locates at the wave node of a longitudinal transducer. The working principle of the motor is analyzed. By using finite element method, comparison between the proposed ultrasonic motor with fixed boundary condition and a transducer with free boundary condition are developed by modal analysis, harmonic analysis and transient analysis. It is found that the longitudinal-bending hybrid vibrations can be produced by the longitudinal piezoelectric elements under a fixed boundary condition of the flange. It should be noted that the bending vibration is not generated by the bending piezoelectric elements, but excited by a vibration coupling effect under an unsymmetrical boundary condition. The change of the boundary condition also shows minute effects on the resonance frequency and the electromechanical coupling factor. Oblique elliptical movements are formed on the two end tips of the transducer. These motions can push the runners linearly by frictional forces if preloads are applied.","PeriodicalId":205914,"journal":{"name":"2015 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125232000","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design and fabrication of cylindrical transducer based on 2–2 piezoelectric composite 基于2-2压电复合材料的圆柱形换能器的设计与制造

2015 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA) Pub Date : 2015-12-28 DOI: 10.1109/SPAWDA.2015.7364489

M. Cui, Shu Xue, Rui-biao Guo, Min Su, Yong-chuan Li, M. Qian

引用次数: 3

Design of a bending vibrations hybrid type ultrasonic motor with a bonded-type structure 结合式弯曲振动混合型超声电机的设计

2015 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA) Pub Date : 2015-12-28 DOI: 10.1109/SPAWDA.2015.7364438

Yingxiang Liu, Dongmei Xu, Ji-peng Yan, Xiu-hua Ni, Weishan Chen

{"title":"Design of a bending vibrations hybrid type ultrasonic motor with a bonded-type structure","authors":"Yingxiang Liu, Dongmei Xu, Ji-peng Yan, Xiu-hua Ni, Weishan Chen","doi":"10.1109/SPAWDA.2015.7364438","DOIUrl":"https://doi.org/10.1109/SPAWDA.2015.7364438","url":null,"abstract":"A bending vibrations hybrid type ultrasonic motor with a bonded-type structure is proposed and designed in this work. Four pieces of PZT plates are bonded on a metal beam to form the proposed motor. In this design, elliptical movements of the driving feet, the significant motion to realize the actuating of a rotor, is produced by the superimposing of two first bending vibrations orthogonal in space. The structural parameters' sensitivities of the bending resonance frequency and the electromechanical coupling factor are calculated and discussed by modal analysis and harmonic analysis respectively. The most sensitive parameters are obtained. Then, the vibration characteristic of the proposed motor is investigated by transient analysis; another ultrasonic motor with the same length but no horns is also calculated to give a comparison. Different with previous motor, the proposed one drive the runner by two transversal displacements of the driving tip; this new actuating mode has merits of higher resonance frequency, larger vibration amplitude and velocity, better movement trajectory uniformity and shorter response time. The study results can guide the fabrication of linear or rotary ultrasonic motor with small size.","PeriodicalId":205914,"journal":{"name":"2015 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA)","volume":"80 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122664875","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Lamb wave band gaps in one-dimensional magnetoelastic phononic crystal plates 一维磁弹性声子晶体板的兰姆波带隙

2015 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA) Pub Date : 2015-12-28 DOI: 10.1109/SPAWDA.2015.7364540

Hong-bo Zhang, Jiujiu Chen, Xu Han

引用次数: 0

Design of a cross-shaped piezoelectric motor with single driving foot 单驱动脚十字形压电电机的设计

2015 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA) Pub Date : 2015-12-28 DOI: 10.1109/SPAWDA.2015.7364436

Jun-kao Liu, Dongmei Xu, Yingxiang Liu, Xiu-hua Ni, Weishan Chen

{"title":"Design of a cross-shaped piezoelectric motor with single driving foot","authors":"Jun-kao Liu, Dongmei Xu, Yingxiang Liu, Xiu-hua Ni, Weishan Chen","doi":"10.1109/SPAWDA.2015.7364436","DOIUrl":"https://doi.org/10.1109/SPAWDA.2015.7364436","url":null,"abstract":"A cross-shaped piezoelectric motor with length of 43mm and diameter of 11 mm was proposed in this paper. Two third bending modes were used to generate ellipse trajectory at the driving foot located at the vibrator's center. Sixteen pieces of piezoelectric ceramic plates with sizes of 5mm×3mm×1mm were used to excite two third bending modes. Sine and cosine voltages with effective value of 100V at the frequency of 54.696 kHz were applied to the piezoelectric ceramic plates in right and left sides of the vibrator. Symmetrical structure of the motor solved the problem of mode frequency degeneracy. Two excitation methods were put forward to excite two third bending vibrations. And effectiveness of the two excitation methods was compared by the transient analysis with finite element method. Transient analysis results showed that motion trajectories of nodes on the driving feet were three-dimensional and that ellipse motion in the XOY plane was fit to drive the motor, and the new excitation method improves the vibration amplitude in the OX and OY by 2 times and 4 times, respectively compared with the vibration amplitude excited by the traditional excitation method.","PeriodicalId":205914,"journal":{"name":"2015 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121953432","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Piezoelectric wind energy harvesting device with resonant cavity and tuning fork reeds 带有谐振腔和音叉簧片的压电式风能收集装置

2015 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA) Pub Date : 2015-12-28 DOI: 10.1109/SPAWDA.2015.7364476

Yong-bin Zhang, C. Pan, Xue-kui Meng, Liandong Yu

引用次数: 0

Analysis of frequency characteristics of MEMS piezoelectric cantilever beam based energy harvester 基于MEMS压电悬臂梁的能量采集器频率特性分析

2015 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA) Pub Date : 2015-12-28 DOI: 10.1109/SPAWDA.2015.7364470

Jinhui Zhang, Sheng-lin Ma, L. Qin

{"title":"Analysis of frequency characteristics of MEMS piezoelectric cantilever beam based energy harvester","authors":"Jinhui Zhang, Sheng-lin Ma, L. Qin","doi":"10.1109/SPAWDA.2015.7364470","DOIUrl":"https://doi.org/10.1109/SPAWDA.2015.7364470","url":null,"abstract":"In this paper, the parameters effect on resonant frequency of MEMS piezoelectric cantilever beam is studied by FEA simulation, which is aimed to provide estimation of the frequency error using simple beam formula for piezoelectric cantilever beam based vibration energy harvester. In the simulation, piezoelectric vibration energy harvester is simplified to a thin silicon cantilever beam with a proof mass attached at the free end; the frequency error (Er) was achieved from the difference of simulation value and the value determined by beam formula, and its three main parameters width to length ratio of cantilever beam, covering area of proof mass, and mass ratio of proof mass to cantilever mass are systematically analyzed with a range of 0.1 to 1, 0.05 to 0.6, 0.5 to 150 respectively; multiple linear regression analysis was used to evaluate these parameters effects. The results show that Er increases with each of these three parameters; the covering area of proof mass has the greatest effect on Er; the range of parameters should be carefully considered to avoid big frequency error using beam equation; the simulation results can be used to guide the design of piezoelectric cantilever beam based vibration energy harvester.","PeriodicalId":205914,"journal":{"name":"2015 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115965789","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 9

Research on the loss-less compression algorithm of the ultrasonic testing of rail 钢轨超声检测无损压缩算法研究

2015 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA) Pub Date : 2015-12-28 DOI: 10.1109/SPAWDA.2015.7364530

Shuai Li, Guoxuan Lian, Zhao-bin Peng

引用次数: 1