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Boundary conditions for axisymmetric piezoelectric cylinder

Baosheng ZHAO, Di WU, Xi CHEN

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 4, Pages 401-408 doi: 10.1007/s11465-013-0272-8

Abstract:

For axisymmetric piezoelectric cylinder, the reciprocal theorem and the axisymmetric general solutiondeveloped by Gregory and Wan is converted into necessary conditions on the end-data of axisymmetric piezoelectriccircular cylinder, and the rapidly decaying solution is established.for the case of axisymmetric deformation of piezoelectric cylinder are derived explicitly.cylinder.

Keywords： solid and structures the axisymmetric deformation the piezoelectric circular cylinder the refined theory

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Power performance of circular piezoelectric diaphragm generators

TANG Kehong, KAN Junwu, YANG Zhigang, CHENG Guangming, PENG Taijiang

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 4, Pages 434-440 doi: 10.1007/s11465-008-0069-3

Abstract: Energy generation performance of a piezoelectric generator depends mainly on several elements such asthe optimal energy-harvesting device, the Raleigh method is used to establish the analysis model of circularpiezoelectric composite diaphragms.The relationships between the output power and the structural parameters of piezoelectric composite diaphragmsA piezoelectric diaphragm generator with given dimensions tends to achieve higher output power under

Keywords： clamped boundary energy-harvesting composite diaphragm piezoelectric composite maximum

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Refined analysis of axi-symmetric circular cylinder in the axial magnetic field without ad hoc assumption

Baosheng ZHAO, Yang GAO, Yingtao ZHAO, Dechen ZHANG

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 3, Pages 318-323 doi: 10.1007/s11465-011-0232-0

Abstract:

The refined theory for axi-symmetric magnetoelastic circular cylinder is deduced systematically andcylinder without ad hoc assumptions.basis of the refined theory developed in the present study, solutions are obtained for magnetoelastic circularcylinder with homogeneous and non-homogenous boundary conditions, respectively.For the circular cylinder with homogeneous boundary conditions, the refined theory provides exact solutions

Keywords： refined analysis axially symmetric deformation circular cylinder Bessel’s function axial magnetic field

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Stress field near circular-arc interface crack tip based on electric saturation concept

Longchao DAI, Xinwei WANG

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 3, Pages 320-325 doi: 10.1007/s11465-009-0042-9

Abstract: Within the framework of nonlinear electroelasticity, the anti-plane problem of a circular-arc interfacialcrack between a circular piezoelectric inhomogeneity and an infinite piezoelectric matrix subjected

Keywords： piezoelectric material arc crack strip saturation stress intensity factor

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A pneumatic cylinder driving polyhedron mobile mechanism

Wan DING, Sung-Chan KIM, Yan-An YAO

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 1, Pages 55-65 doi: 10.1007/s11465-012-0301-z

Abstract:

A novel pneumatic cylinder driving polyhedron mobile mechanism is proposed in this paper.The mechanism is comprised of 5 tetrahedrons which includes a pneumatic cylinder in each edge.

Keywords： mobile mechanism polyhedron cylinder

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Research on applications of piezoelectric materials in smart structures

Jinhao QIU, Hongli JI

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 1, Pages 99-117 doi: 10.1007/s11465-011-0212-4

Abstract:

Piezoelectric materials have become the most attractive functional materials for sensors and actuatorsIn this article, some research activities on the applications of piezoelectric materials in smart structuresenergy harvesting using new electronic interfaces, structural health monitoring based on a new type of piezoelectric

Keywords： piezoelectric materials vibration control energy harvesting structural health monitoring piezoelectric

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Present situation and classification of piezoelectric pump

Fang YE, Shouyin WANG, Wei CHENG, Qixiao XIA, Jianhui ZHANG,

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 4, Pages 420-429 doi: 10.1007/s11465-009-0052-7

Abstract: According to the present classification method for a piezoelectric pump, this paper reviews the developmentA volumetric piezoelectric pump, which belongs to traditional volumetric pumps, can be divided into apiezoelectric pump with or without valves.A new valveless piezoelectric pump nowadays becomes a hot issue in scientific research.New forms of piezoelectric pumps, different from traditional ones, are only at the stage of conception

Keywords： piezoelectric pump development and present situation new classification method valveless piezoelectricpump new forms of piezoelectric pump

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LEVERAGING LIVESTOCK TO PROMOTE A CIRCULAR FOOD SYSTEM

Zhengxia DOU

Frontiers of Agricultural Science and Engineering 2021, Volume 8, Issue 1, Pages 188-192 doi: 10.15302/J-FASE-2020370

Abstract: animal-derived food is slowing while attention is growing over the role of livestock farming in an enhanced circular

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Robust isogeometric topology optimization for piezoelectric actuators with uniform manufacturability

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 2, doi: 10.1007/s11465-022-0683-5

Abstract: Piezoelectric actuators have received substantial attention among the industry and academia due to quickHowever, the design of piezoelectric actuators always suffers from the emergence of several localizedcurrent paper is to propose a robust isogeometric topology optimization (RITO) method for the design of piezoelectricthe conventional finite element method is applied to compute the unknown electro elastic fields in piezoelectricFinally, the RITO formulation for the design of piezoelectric materials is developed, and several numerical

Keywords： piezoelectric actuator isogeometric topology optimization uniform manufacturability robust formulation

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Novel precision piezoelectric step rotary actuator

LIU Jianfang, YANG Zhigang, ZHAO Hongwei, CHENG Guangming

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 3, Pages 356-360 doi: 10.1007/s11465-007-0062-2

Abstract: A novel piezoelectric (PZT) precision step rotary actuator was developed on the basis of PZT technology

Keywords： developed stability ineffective anchoring/loosening technology piezoelectric

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A valveless piezoelectric pump with novel flow path design of function of rectification to improve energy

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 3, doi: 10.1007/s11465-022-0685-3

Abstract: Existing valveless piezoelectric pumps are mostly based on the flow resistance mechanism to generatefield simulation, the proposed tubes were integrated into a piezo-driven chamber, and a novel valveless piezoelectricThe development of NVPPFR compensated for the inefficiency of traditional valveless piezoelectric pumps

Keywords： composite tube valveless piezoelectric pump rectification energy efficiency

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Enhancing fatigue life of cylinder-crown integrated structure by optimizing dimension

Weiwei ZHANG,Xiaosong WANG,Zhongren WANG,Shijian YUAN

Frontiers of Mechanical Engineering 2015, Volume 10, Issue 1, Pages 102-110 doi: 10.1007/s11465-015-0329-y

Abstract:

Cylinder-crown integrated hydraulic press (CCIHP) is a new press structure.The hemispherical hydraulic cylinder also functions as a main portion of crown, which has lower weightand higher section modulus compared with the conventional hydraulic cylinder and press crown.During the engineering design of cylinder-crown integrated structure, in order to increase the fatigue

Keywords： cylinder-crown integrated hydraulic press (CCIHP) adaptive macro genetic algorithms (AMGA) strain-controlled

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Comparison between four piezoelectric energy harvesting circuits

Jinhao Qiu, Hao Jiang, Hongli Ji, Kongjun ZHU

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 2, Pages 153-159 doi: 10.1007/s11465-009-0031-z

Abstract: This paper investigates and compares the efficiencies of four different interfaces for vibration-based energy harvesting systems. Among those four circuits, two circuits adopt the synchronous switching technique, in which the circuit is switched synchronously with the vibration. In this study, a simple source-less trigger circuit used to control the synchronized switch is proposed and two interface circuits of energy harvesting systems are designed based on the trigger circuit. To validate the effectiveness of the proposed circuits, an experimental system was established and the power harvested by those circuits from a vibration beam was measured. Experimental results show that the two new circuits can increase the harvested power by factors 2.6 and 7, respectively, without consuming extra power in the circuits.

Keywords： energy harvesting piezoelectric materials synchronized switching

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Performance analysis of piezoelectric bimorph generator

KAN Junwu, TANG Kehong, ZHAO Hongwei, SHAO Chenghui, ZHU Guoren

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 2, Pages 151-157 doi: 10.1007/s11465-008-0039-9

Abstract: In this paper, the theoretical model and simulation of the performance of a piezoelectric (PZT) bimorphThe generator consists of two piezoelectric plates bonded on a substrate metal plate.The results show that there is a optimal thickness ratio for a piezoelectric bimorph generator to achieve

Keywords： piezoelectric bimorph substrate addition PZT mechanical

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Spectral element modeling based structure piezoelectric impedance computation and damage identification

Zhigang GUO, Zhi SUN

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 4, Pages 458-464 doi: 10.1007/s11709-011-0133-7

Abstract: This paper presents a numerical simulation study on electromechanical impedance technique for structural damage identification. The basic principle of impedance based damage detection is structural impedance will vary with the occurrence and development of structural damage, which can be measured from electromechanical admittance curves acquired from PZT patches. Therefore, structure damage can be identified from the electromechanical admittance measurements. In this study, a model based method that can identify both location and severity of structural damage through the minimization of the deviations between structural impedance curves and numerically computed response is developed. The numerical model is set up using the spectral element method, which is promised to be of high numerical efficiency and computational accuracy in the high frequency range. An optimization procedure is then formulated to estimate the property change of structural elements from the electric admittance measurement of PZT patches. A case study on a pin-pin bar is conducted to investigate the feasibility of the proposed method. The results show that the presented method can accurately identify bar damage location and severity even when the measurements are polluted by 5% noise.

Keywords： PZT piezoelectric impedance optimization spectral element damage identification