发布求助
文献互助 智能选刊 最新文献

2011 Symposium on Piezoelectricity, Acoustic Waves and Device Applications (SPAWDA)最新文献

筛选
英文 中文
A power harvesting system consists of cross-distributing bimorphs with high real powerdensity 功率收集系统由具有高实际功率密度的交叉分布双晶片组成
2011 Symposium on Piezoelectricity, Acoustic Waves and Device Applications (SPAWDA) Pub Date : 2011-12-01 DOI: 10.1109/SPAWDA.2011.6167206
Huan Xue, R. Ge
{"title":"A power harvesting system consists of cross-distributing bimorphs with high real powerdensity","authors":"Huan Xue, R. Ge","doi":"10.1109/SPAWDA.2011.6167206","DOIUrl":"https://doi.org/10.1109/SPAWDA.2011.6167206","url":null,"abstract":"The traditional battery gradually cannot play the role of the power source of remote micro-sensors and embedded microelectronic devices due to their rapid development. To power the microelectronics by harvesting the environment vibration energy becomes a popular technology. The piezoelectric energy harvesters are very promising because of their high efficiency. In order to protect the harvesting elements from collision, the safety working space of the harvesting structure should be taken into account of the output power-density. The real output power-density is introduced, which considers both piezoelectric body and safety working space. A power harvesting system consists of cross-distributing bimorphs with high real power-density is developed. The structure and working principle are introduced. The differences of working space requirement between the cross-distributing harvester and the traditional one are analyzed. The numerical result shows that the cross-distributing method can greatly improve the real power-density of energy harvesting system.","PeriodicalId":285701,"journal":{"name":"2011 Symposium on Piezoelectricity, Acoustic Waves and Device Applications (SPAWDA)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126818118","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
Structure and electrical properties of 0.07Pb(Mn1/3Sb2/3)O3-(0.93-X)BiScO3-xPbTiO3 piezoelectric ceramics 0.07Pb(Mn1/3Sb2/3)O3-(0.93-X)BiScO3-xPbTiO3压电陶瓷的结构与电学性能
2011 Symposium on Piezoelectricity, Acoustic Waves and Device Applications (SPAWDA) Pub Date : 2011-12-01 DOI: 10.1109/SPAWDA.2011.6167247
W. Qian, Ying Yang, Yiping Wang, B. Wang, Lin-lin Liu
{"title":"Structure and electrical properties of 0.07Pb(Mn1/3Sb2/3)O3-(0.93-X)BiScO3-xPbTiO3 piezoelectric ceramics","authors":"W. Qian, Ying Yang, Yiping Wang, B. Wang, Lin-lin Liu","doi":"10.1109/SPAWDA.2011.6167247","DOIUrl":"https://doi.org/10.1109/SPAWDA.2011.6167247","url":null,"abstract":"A ternary piezoelectric ceramic series of 0.07Pb(Mn<inf>1/3</inf>Sb<inf>2/3</inf>)O<inf>3</inf>-(0.93-x)BiScO<inf>3</inf>-xPbTiO<inf>3</inf> (PMS-BS-xPT, x=0.52∼0.72) were synthesized by conventional solid-state method. The phase, microstructure, dielectric, piezoelectric and ferroelectric properties were studied. X-ray diffraction (XRD) shows a change in symmetry from rhombohedral to tetragonal phase at the composition of x=0.6. And the increase in c/a ratio with PbTiO<inf>3</inf> (PT) content was observed. Dielectric studies reveal that PMS modification suppressed the Curie temperature (T<inf>c</inf>) of the ceramics. Sample with 0.6 mol of PT concentration presents a remarkable decrease in dielectric loss tanδ and a significant increase in mechanical quality factor (Q<inf>m</inf>), indicating that doping of PMS improves the “hard” piezoelectric characteristics of the ceramics. The polarization-electric field (P-E) loops presented pinched shapes at low electric fields and the distortions disappeared at high electric fields. The maximal Q<inf>m</inf> of 1291 and highest T<inf>c</inf> of 415 °C were obtained at the optimized composition of x=0.72.","PeriodicalId":285701,"journal":{"name":"2011 Symposium on Piezoelectricity, Acoustic Waves and Device Applications (SPAWDA)","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123114392","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: 1
Lamb wave dispersion of piezoelectric plate under laser excitation 激光激励下压电板的Lamb波色散
2011 Symposium on Piezoelectricity, Acoustic Waves and Device Applications (SPAWDA) Pub Date : 2011-12-01 DOI: 10.1109/SPAWDA.2011.6167297
Gen Chen, Jinfeng Zhao, Yongdong Pan
{"title":"Lamb wave dispersion of piezoelectric plate under laser excitation","authors":"Gen Chen, Jinfeng Zhao, Yongdong Pan","doi":"10.1109/SPAWDA.2011.6167297","DOIUrl":"https://doi.org/10.1109/SPAWDA.2011.6167297","url":null,"abstract":"The dispersion characteristics of a piezoelectric plate under the laser excitation are studied. The LAMB wave dispersion curves of the piezoelectric plate are calculated for both electrically open and closed boundary conditions. It is found that the dispersion curves of LAMB wave are greatly influenced by the electrical boundary. The spectra of the piezoelectric plate under the ablation and thermo-elastic laser excitation are also calculated. It is shown that the spectrum is dependent on the type of laser source. Although most modes of the dispersion curves can be generated under the laser excitation, the wave energy of the corresponding modes are quite different for the ablation and thermo-elasticexcitation, and this provides the possible theoretical basis for the experimental investigation.","PeriodicalId":285701,"journal":{"name":"2011 Symposium on Piezoelectricity, Acoustic Waves and Device Applications (SPAWDA)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126614245","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
Principle of the rotation of small particles around a nodal point of flexurally vibrating strip 小颗粒绕弯曲振动条的节点旋转的原理
2011 Symposium on Piezoelectricity, Acoustic Waves and Device Applications (SPAWDA) Pub Date : 2011-12-01 DOI: 10.1109/SPAWDA.2011.6167189
Xiao-bo Zhu, Jun-hui Hu, Yu-jie Zhou, Hua-qing Li
{"title":"Principle of the rotation of small particles around a nodal point of flexurally vibrating strip","authors":"Xiao-bo Zhu, Jun-hui Hu, Yu-jie Zhou, Hua-qing Li","doi":"10.1109/SPAWDA.2011.6167189","DOIUrl":"https://doi.org/10.1109/SPAWDA.2011.6167189","url":null,"abstract":"In this report, we investigate the principle of rotation of micro particles around a nodal point of metal strip in flexural vibration, by experimental measurement and theoretical analysis. It is experimentally found that travelling wave may exist along the circles centered at the nodal point, and the travelling wave can drive a particle cluster agglomerated at the nodal point to rotate. The acoustic radiation force, acoustic viscous force and acoustic streaming are excluded from the possible driving force by measuring and comparing the revolution speed of particle cluster in the normal environment of 1 atm and 25°C and in a glass vessel of 0.04 atm and 25°C. The physical principle obtained can well explain the measured relationships between the revolution speed and vibration displacement amplitude. Also, it is found that there is slide between the rotating particles and vibrating surface.","PeriodicalId":285701,"journal":{"name":"2011 Symposium on Piezoelectricity, Acoustic Waves and Device Applications (SPAWDA)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114144592","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
An improved algorithm for reconstruction of small inhomogeneities from acoustic measurements 声学测量小不均匀性重建的改进算法
2011 Symposium on Piezoelectricity, Acoustic Waves and Device Applications (SPAWDA) Pub Date : 2011-12-01 DOI: 10.1109/SPAWDA.2011.6167220
Xiaomao Deng, Jingzhi Li, Zheng-zheng Yan, Yubo Zhao, J. Zou
{"title":"An improved algorithm for reconstruction of small inhomogeneities from acoustic measurements","authors":"Xiaomao Deng, Jingzhi Li, Zheng-zheng Yan, Yubo Zhao, J. Zou","doi":"10.1109/SPAWDA.2011.6167220","DOIUrl":"https://doi.org/10.1109/SPAWDA.2011.6167220","url":null,"abstract":"Reconstruction of unknown medium characteristics such as shape, refractive index by measurements of scattered acoustic wave data has wide application in nondestructive detection for engineering and medical use, which is a typical nonlinear and severely ill-posed problem. Under the setting of a smooth background containing a small number of unknown small inhomogeneous inclusions, we propose in this paper an efficient algorithm to reconstruct these inhomogeneities from scattered wave measurement data incited by a single-frequency acoustic wave. The proposed algorithm includes a modified treatment of quadrature rule for the singular kernel in the fundamental solution of Helmholtz equation, which enables a more accurate evaluation of the simulated total field. Numerical experiments validate the effectiveness and robustness of this algorithm in reconstructing small inhomogeneous medium in two dimensions.","PeriodicalId":285701,"journal":{"name":"2011 Symposium on Piezoelectricity, Acoustic Waves and Device Applications (SPAWDA)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120958141","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 of a biomimetic fish caudal drive via Macro Fiber Composite 基于宏纤维复合材料的仿生鱼类尾鳍驱动器设计
2011 Symposium on Piezoelectricity, Acoustic Waves and Device Applications (SPAWDA) Pub Date : 2011-12-01 DOI: 10.1109/SPAWDA.2011.6167207
Yuan-lin Guan, Zhi-wei Xu, Hua-feng Li
{"title":"Design of a biomimetic fish caudal drive via Macro Fiber Composite","authors":"Yuan-lin Guan, Zhi-wei Xu, Hua-feng Li","doi":"10.1109/SPAWDA.2011.6167207","DOIUrl":"https://doi.org/10.1109/SPAWDA.2011.6167207","url":null,"abstract":"According to the technology of the body-and-caudal fin drive, a novel design of biomimetic caudal drive is proposed in this paper. The drive is a two-layer laminated plate that is composed of Macro Fiber Composite (MFC) and a substrate of variable stiffness. When the material of the substrate is glass fiber epoxy reinforced composites, the biggest displacement of the terminal is 4mm in the air and 1.97mm under the water, and when the material is glass fiber composites of polyurethane, the biggest displacement is 2.39mm in the air. Therefore, the experiments verify the feasibility of the design and the significance of the substrate's stiffness for the drive of the caudal fin.","PeriodicalId":285701,"journal":{"name":"2011 Symposium on Piezoelectricity, Acoustic Waves and Device Applications (SPAWDA)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121130484","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
The antiplane vibration of mass sensor with an inhomogeneous weak interface 非均匀弱界面质量传感器的反平面振动
2011 Symposium on Piezoelectricity, Acoustic Waves and Device Applications (SPAWDA) Pub Date : 2011-12-01 DOI: 10.1109/SPAWDA.2011.6167264
Peng Li, F. Jin
{"title":"The antiplane vibration of mass sensor with an inhomogeneous weak interface","authors":"Peng Li, F. Jin","doi":"10.1109/SPAWDA.2011.6167264","DOIUrl":"https://doi.org/10.1109/SPAWDA.2011.6167264","url":null,"abstract":"The antiplane vibration of quartz plates is solved by ignoring the effect of small c56 compared with other elastic constants. The analysis of the inhomogeneous weak interface is based on the Fourier series solution, and the convergence is examined. Numerical simulation is carried out for the interface elastic coefficient with randomly normal distribution, which is truthful in practical engineering. Compared with the homogeneous interface, the displacement jump and stress components along the interface are the largest at the edge of the plate when the interface is non-uniform, which can be used to explain the reason why this position is always broken firstly.","PeriodicalId":285701,"journal":{"name":"2011 Symposium on Piezoelectricity, Acoustic Waves and Device Applications (SPAWDA)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114301295","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
Wave propagation in a functionally graded magnetoelectric coating on a cylinder 圆柱体上功能梯度磁电涂层中的波传播
2011 Symposium on Piezoelectricity, Acoustic Waves and Device Applications (SPAWDA) Pub Date : 2011-12-01 DOI: 10.1109/spawda.2011.6167322
Y. Pan, Z. Zhong
{"title":"Wave propagation in a functionally graded magnetoelectric coating on a cylinder","authors":"Y. Pan, Z. Zhong","doi":"10.1109/spawda.2011.6167322","DOIUrl":"https://doi.org/10.1109/spawda.2011.6167322","url":null,"abstract":"In this paper, the wave propagation in a functionally graded magnetoelectric coating on a cylinder is studied. Considering the piezoelectricity and piezomagneticity of the coating with an orthotropic symmetry, the wave equations and system matrices for state vector are obtained for SH and P-SV waves propagating along both the axial and circumferential directions. It is found that the wave propagation of the SH wave along the axial direction and the P-SV wave along the circumferential direction is not coupled to the electric and magnetic field, i.e., their corresponding dispersion patterns are same as that for a functionally graded coating without piezoelectricity and piezomagneticity. However, the wave propagation of the P-SV wave along the axial direction and the SH wave along the circumferential direction is coupled to the electric and magnetic field, i.e., their corresponding dispersion patterns depend on the applied electric and magnetic field, their dispersion curves are different under the open and close electric or magnetic boundary conditions.","PeriodicalId":285701,"journal":{"name":"2011 Symposium on Piezoelectricity, Acoustic Waves and Device Applications (SPAWDA)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122428364","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: 1
Thermal characteristics of traveling wave rotary ultrasonic motors 行波旋转超声电机的热特性
2011 Symposium on Piezoelectricity, Acoustic Waves and Device Applications (SPAWDA) Pub Date : 2011-12-01 DOI: 10.1109/SPAWDA.2011.6167180
Xiaolong Lu, Junhui Hu, Chunsheng Zhao
{"title":"Thermal characteristics of traveling wave rotary ultrasonic motors","authors":"Xiaolong Lu, Junhui Hu, Chunsheng Zhao","doi":"10.1109/SPAWDA.2011.6167180","DOIUrl":"https://doi.org/10.1109/SPAWDA.2011.6167180","url":null,"abstract":"This paper mainly reports the thermal characteristics of traveling wave rotary ultrasonic motors. A theoretical model for calculating the power loss of this motor in rated operation is built. The power loss mainly consists of three parts, i.e. the friction loss power which shares the large portion in the total loss, the structure damping loss power and the dielectric loss power. The finite element method is applied to solve the temperature distribution in the ultrasonic motors. The radiation factor for heat dissipating is also taken into account in order to use much more accurate boundary conditions for simulation. The calculated result agrees with the experimental results basically, which indicates that the analysis method in this paper is valid. Besides that, it is found that the uniformity of temperature field of ultrasonic motors can be optimized by changing the dimensions of some structural parts.","PeriodicalId":285701,"journal":{"name":"2011 Symposium on Piezoelectricity, Acoustic Waves and Device Applications (SPAWDA)","volume":"45 6-7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116508238","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: 1
Electromechanical coupling and energy harvesting of circular rings 环的机电耦合与能量收集
2011 Symposium on Piezoelectricity, Acoustic Waves and Device Applications (SPAWDA) Pub Date : 2011-12-01 DOI: 10.1109/SPAWDA.2011.6167301
Xufang Zhang, Shun-di Hu, H. Tzou
{"title":"Electromechanical coupling and energy harvesting of circular rings","authors":"Xufang Zhang, Shun-di Hu, H. Tzou","doi":"10.1109/SPAWDA.2011.6167301","DOIUrl":"https://doi.org/10.1109/SPAWDA.2011.6167301","url":null,"abstract":"Ring shell structures often exhibit oscillatory behaviors during their operations. It is a crucial challenge to extract vibration energy, which is always wasted, to convert to useful electric energy. In this study, the concept of energy harvesting based on a circular ring laminated with a piezoelectric patch is established to achieve this purpose. The electrical device is assumed to be an equivalent resistance in the close-loop circuit as a simplified energy harvesting system. Due to the direct piezoelectric effect, the electromechanical coupling mechanism of the energy harvesting system is analyzed. Then, the electric power on the resistance is obtained. Case studies with respect to different system parameters, such as the equivalent resistance, excitation frequency, and the ring size, are conducted to optimize the modal power. Results show that the maximal modal power output is related to the equivalent resistance, the excitation frequency, as well as the ring radius. The optimal modal parameters are evaluated to maximize the energy harvesting effectiveness and provide a design guideline of ring-type energy harvesters for practical applications.","PeriodicalId":285701,"journal":{"name":"2011 Symposium on Piezoelectricity, Acoustic Waves and Device Applications (SPAWDA)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115151265","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: 6
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：604180095
Book学术官方微信