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检索条件"任意字段=2013全国压电和声波理论及器件技术研讨会"

共 421 条记录，以下是31-40 订阅

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SH WAVE PROPAGATION IN A LAYERED MAGNETO-ELECTRIC HOLLOW CYLINDER

SH WAVE PROPAGATION IN A LAYERED MAGNETO-ELECTRIC HOLLOW CYL...

引用

2012全国压电和声波理论及器件技术研讨会

作者： Yong-dong PAN Zheng ZHONG Kao-shan DAI School of Aerospace Engineering and Applied Mechanics Tongji University School of Civil Engineering Tongji University

In this paper,the SH wave propagation in a layered magneto-electric hollow cylinder is *** wave equations and system matrices for state vector are obtained for SH wave propagating along the circumferential *** is found that the propagation of SH wave is coupled to the electric and magnetic *** zero-order mode SHO is non-dispersive under the electrically open boundary,while it is dispersive under the electrically closed boundary,and it is the same for the piezomagnetic material.

关键词： Piezoelectric Piezomagnetic Hollow cylinder Wave propagation Dispersion

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ANALYSIS ON THE PULL STRENGTH'S CALCULATION METHOD DURING THE CONSTRUCTION OF OIL PIPELINE DIRECTIONAL DRILLING CROSSING THE YELLOW RIVER AND IMPROVEMENT

ANALYSIS ON THE PULL STRENGTH'S CALCULATION METHOD DURING TH...

引用

2012全国压电和声波理论及器件技术研讨会

作者： Shi-qi XU Bin LUO Jun CHENG Yuan-tai HU College of Petroleum Engineering Xi'an Shiyou University Department of Mechanics Huazhong University of Science and Technology

This paper reviewed the methods,which calculate the pull strength during directional drilling crossing construction of oil pipeline,both at home and *** based on the analysis of these methods,the detailed research was *** the same time,considering the peculiarity of this channel geologic structure and the technological requirements,the method,averaged standard method and unloading arch method,was given to calculate the maximal pull *** is practiced that,this method is instructive and meaningful to the directional drilling crossing construction.

关键词： directional drilling crossing pull strength pipeline laying

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A HIGHER ORDER ZIGZAG THEORY FOR MAGNETOELECTRIC COMPOSITE BEAMS

A HIGHER ORDER ZIGZAG THEORY FOR MAGNETOELECTRIC COMPOSITE B...

引用

2012全国压电和声波理论及器件技术研讨会

作者： Long ZOU Hui-ming WANG Department of Engineering Mechanics Zhejiang University

The third-order approximation is employed to analyze the magnetoelectric composite *** axial displacement,the electric and magnetic potentials are assumed as piecewise linear function along the thickness-direction of the *** the conditions of zero transverse shear stress at the top and bottom surfaces and the continuity conditions at the interfaces,the expressions of the displacement can be obtained *** transverse displacement accounts for the piezoelectric and piezomagnetic *** governing equations are derived by using the variational *** present theory provides an efficient way in analyzing the magnetoelectric beams.

关键词： Zigzag theory Magnetoelectric Composite beam Variational principle

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AN IMPERMEABLE CIRCULAR-ARC CRACK IN AN ELECTROSTRICTIVE MATERIAL

AN IMPERMEABLE CIRCULAR-ARC CRACK IN AN ELECTROSTRICTIVE MAT...

引用

2012全国压电和声波理论及器件技术研讨会

作者： Shi-juan WANG Cun-fa GAO State Key Laboratory of Mechanics and Control of Mechanical Structures Nanjing University of Aeronautics & Astronautics

The two-dimensional problem of an impermeable circular-arc crack in an infinite electrostrictive solid subjected to pure electric loads at infinity is *** on Muskhelisvili's theory,explicit solutions are obtained for an impermeable crack by taking Maxwell stress and electrical body force into *** model used in this paper shows that there is more than one singularity in pseudo total stress at the crack *** addition,numerical results are given to discuss the effects of electric field and central angle on the stress intensity factor.

关键词： Electrostrictive Muskhelisvili's theory Circular-arc crack

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PGC MODULATION BASED ON PZTFOR FIBER INTERFEROMETERIC SENSOR

PGC MODULATION BASED ON PZTFOR FIBER INTERFEROMETERIC SENSOR

引用

2012全国压电和声波理论及器件技术研讨会

作者： De-sheng CHEN Xiao-di HUANG Hai-bin WANG Lei JIANG Institute of Acoustics Chinese Academy of Sciences

The phase generated carrier(PGC) modulation-demodulation technique is the main demodulation technique for fiber interferometric *** are two methods to realize PGC *** method is inner modulation,and the other is external ***,there is less study on the PGC external modulation than the PGC inner *** this paper,we focus on the PGC external modulation to analyze its *** experiment results indicate that the external demodulation performs ***,its cost is much lower than that of inner modulation.

关键词： PZT PGC Modulation Fiber Sensor

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FREE VIBRATION OF FIXED SUPPORTED AND MULTILAYERED MAGNETO-ELECTRO-ELASTIC PLATES

FREE VIBRATION OF FIXED SUPPORTED AND MULTILAYERED MAGNETO-E...

引用

2012全国压电和声波理论及器件技术研讨会

作者： Li-bo XIN Zhen-dong HU School of Aerospace Engineering and Applied Mechanics Tongji University

Semi-analytical finite element method is applied to study the free vibration of multilayered,anisotropic magneto-electro-elastic plates.A series solution is assumed in the plane to satisfy the fixed boundary *** finite element procedure is adopted across the thickness of the *** the finite element model is derived based on the constitutive equation of magneto-electro-elastic *** components,electric potential and magnetic potential is taken as the nodal degree of *** numerical results are compared with the solutions in *** influence of magnetic-electro-elastic properties are studied.

关键词： Finite element method Magneto-electro-elastic plate Free vibration Multilayered

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PROPAGATION OF BLEUSTEIN-GULYAEV WAVE IN A PIEZOELECTRIC CRYSTAL IN CONTACT WITH VISCOUS CONDUCTIVE LIQUIDS

PROPAGATION OF BLEUSTEIN-GULYAEV WAVE IN A PIEZOELECTRIC CRY...

引用

2012全国压电和声波理论及器件技术研讨会

作者： Feng-lin GUO Guo-qing WANG Department of Engineering Mechanics Shanghai Jiaotong University

In this work we studied propagation of B-G wave in a piezoelectric crystal of hexagonal symmetry in contact with viscous conductive *** dispersion relations are derived for both the metallized and exact electrical solid/liquid interface *** is found that acoustoelectric coupling and viscosity significantly affect acoustic wave propagation properties at a solid/liquid *** study provides essential data and theoretical foundation for the design and development of liquid phase sensors and biosensors.

关键词： Bleustein-Gulyaev wave Liquid sensing Acoustoelectric coupling Dispersion relations

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PIEZOMAGNETIC LOVE WAVES ON ORTHORTROPIC PIEZOELECTRIC HALF-SPACES

PIEZOMAGNETIC LOVE WAVES ON ORTHORTROPIC PIEZOELECTRIC HALF-...

引用

2012全国压电和声波理论及器件技术研讨会

作者： Yan-ping KONG Ruo-meng TIAN Jin-xi LIU Institute of Engineering Mechanics Beijing Jiaotong University Department of Engineering Mechanics Shijiazhuang Tiedao University

This paper investigates Love waves propagating in the layered plate structure consisting of a piezomagnetic layer and an orthotropic piezoelectric half *** Love waves can propagate in the resulting structure and the dispersion relations of the Love waves are *** the case of a Terfenol-D layer over a KNbO substrate,the wave exists at any rotated *** results showed that the phase velocity dependent on the cutting angle and the speed of these waves is sensitive to the rotated cutting *** conclusions have important role for designing resonators,filters and SAW devices.

关键词： Piezomagnetic material Orthotropic Piezoelectric material Love wave Dispersion

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EXPERIMENTAL INVESTIGATION OF CHARACTERISTICS OF CHLADNI EFFECT

EXPERIMENTAL INVESTIGATION OF CHARACTERISTICS OF CHLADNI EFF...

引用

2012全国压电和声波理论及器件技术研讨会

作者： Xiao-bo ZHU Jun-hui HU State Key Laboratory of Mechanics and Control of Mechanical Structures Nanjing University of Aeronautics & Astronautics

In this work,characteristics of Chladni effect around a nodal point on a metal plate vibrating flexurally are experimentally *** eggs with 440 μm diameter approximately are used as the particles for *** locus of particle clusters moving to the nodal point,and dependence of the average radial velocity of particle clusters on the vibration displacement of metal plate,particle number in a cluster,and initial radial position of particle clusters,are measured and analyzed.

关键词： Chladni effect Nodal point Particle Average radial velocity

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OVENTONE-MODE LIMITS ON AT-CUT FUNDAMENTAL CRYSTAL RESONATOR,THROUGH TWICE PLATING METHOD

OVENTONE-MODE LIMITS ON AT-CUT FUNDAMENTAL CRYSTAL RESONATOR...

引用

2012全国压电和声波理论及器件技术研讨会

作者： Lin-lin ZHANG Beijing Chenjing Electronics co. Ltd

This paper introduces a method to limit overtone-mode on AT-Cut fundamental mode crystal *** to the energy trapping theory,twice plating method is employed to increase the mass of the main *** key design parameters are the diameter and thickness of the mass loading,which are determined so that the maximum ratio of the equivalent resistance at the overtone mode to that at the fundamental mode may be *** results in 4 MHz AT-Cut fundamental mode resonator show that the equivalent resistance of the fundamental mode is less than 30 ohm while the third-order overtone mode achieved a resistance of more than 150 ohm.

关键词： Energy trapping theory Twice plating Mass loading

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