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Ultrasonic linear motor using the L-B mode Langevin transducer with an exponential horn

SHI Shengjun, CHEN Weishan, LIU Junkao, ZHAO Xuetao

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 2,   Pages 212-217 doi: 10.1007/s11465-008-0026-1

Abstract: linear motor is proposed and fabricated by using the longitudinal and bending vibration double mode bolt-clamped

Keywords： longitudinal     vibration     bolt-clamped     semiconductor     ultrasonic    

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Conformal analysis of fundamental frequency of vibration of elastic clamped plates

QI Hongyuan, ZHU Hengjun

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 4,   Pages 429-432 doi: 10.1007/s11465-007-0073-z

Abstract: To calculate the fundamental frequency of vibration of special-shaped and elastic clamped plates, theFinally, taking ellipse elastic clamped plates as an example, the effects on fundamental frequency coefficient

Keywords： direction     theory     vibration     odd     complicated boundary    

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Fundamental frequency and testing mode of complicated elastic clamped-plate vibration

QI Hongyuan, GUAN Yiduo

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 4,   Pages 360-364 doi: 10.1007/s11465-008-0084-4

Abstract: Aimed at the modal analysis of complicated elastic clamped-plates, a trigonometric interpolation methodsignal processing technology and its software programming, modal parameter recognition of the elastic clamped-plate

Keywords： multi-point excitation     rectangle-plate     single-point     processing technology     trigonometric interpolation    

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Research on bolt-cable reducing span support technology in large span roadway of fully-mechanized coal

Zhu Yongjian,Luo Yixin,Zhang Daobing

Strategic Study of CAE 2010, Volume 12, Issue 3,   Pages 51-55

Abstract:

Aiming at the locale facts of difficult roof controlling for large span gateway of fully-mechanized coal faces, based on analysis of the influence factors of monolayer strata stability, the numerical simulation soft UDEC3.0 is employed to deeply research influence factors and changing rules of roof stability of the gateway which is composed by some monolayer strata. A new supporting idea of reducing span supporting function by bolts cooperating with anchor cables is brought forward by disposing anchor cables at the appropriate locations, the traditional supporting theory such as suspensory and compounding beam (arch) are still operated at the same time. A good result is achieved after the new supporting idea is applied in the large span gateway of Bulianta Colliery in Shendong diggings.

Keywords： large span     roadway     roof     bolt—cable     reducing span support    

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A Novel PWM Method of Diode-clamped Multilevel Inverter at Low Modulation Indices

Xin Xiang,Zhang Qingfan,Hu Shunquan,Li Ruilai

Strategic Study of CAE 2007, Volume 9, Issue 10,   Pages 91-96

Abstract:

Diode-clamped multilevel inverter is a kind of power converter which

Keywords： diode-clamped inverter     carrier-based PWM     low modulation index     redundant state    

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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: Simply supported and clamped boundary conditions were considered.piezoelectric diaphragm generator with given dimensions tends to achieve higher output power under clamped

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

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Vibration control efficiency of piezoelectric shunt damping system

Dan WU, Zhichun YANG, Hao SUN,

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 4,   Pages 441-446 doi: 10.1007/s11465-009-0055-4

Abstract: Four PZT patches with different sizes are bonded on the geometrical central area of four similar clamped

Keywords： piezoelectric shunt     vibration control efficiency     clamped plate     generalized electromechanical coupling    

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Experimental study on the progressive failure and its anchoring effect of weak-broken rock vertical slope

Hehua ZHU, Qianwei XU, Wenqi DING, Feng HUANG

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 2,   Pages 208-224 doi: 10.1007/s11709-011-0111-0

Abstract: These tests can be divided into two categories, that is, with bolt reinforcement and without bolt reinforcementIn which, the stability of slope reinforced with different bolt diameter, different anchor length andThe contributions of bolt reinforcement are mainly reflected by the aspects of shear resistance, crack

Keywords： progressive failure     weak-broken rock     slope     model test     bolt    

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Unified power quality conditioner based on a three-level NPC inverter using fuzzy control techniques for all voltage disturbances compensation

Salim CHENNAI,M-T BENCHOUIA

Frontiers in Energy 2014, Volume 8, Issue 2,   Pages 221-239 doi: 10.1007/s11708-014-0317-7

Abstract: efficient control scheme for unified power quality conditioner (UPQC) based on three-level neutral point clamped

Keywords： three-level neutral point clamped (NPC) inverter     unified power quality conditioner (UPQC)     current harmonics    

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Title Author Date Type Operation

Ultrasonic linear motor using the L-B mode Langevin transducer with an exponential horn

SHI Shengjun, CHEN Weishan, LIU Junkao, ZHAO Xuetao

Journal Article

Conformal analysis of fundamental frequency of vibration of elastic clamped plates

QI Hongyuan, ZHU Hengjun

Journal Article

Fundamental frequency and testing mode of complicated elastic clamped-plate vibration

QI Hongyuan, GUAN Yiduo

Journal Article

Research on bolt-cable reducing span support technology in large span roadway of fully-mechanized coal

Zhu Yongjian,Luo Yixin,Zhang Daobing

Journal Article

A Novel PWM Method of Diode-clamped Multilevel Inverter at Low Modulation Indices

Xin Xiang,Zhang Qingfan,Hu Shunquan,Li Ruilai

Journal Article

Power performance of circular piezoelectric diaphragm generators

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

Journal Article

Vibration control efficiency of piezoelectric shunt damping system

Dan WU, Zhichun YANG, Hao SUN,

Journal Article

Experimental study on the progressive failure and its anchoring effect of weak-broken rock vertical slope

Hehua ZHU, Qianwei XU, Wenqi DING, Feng HUANG

Journal Article

Unified power quality conditioner based on a three-level NPC inverter using fuzzy control techniques for all voltage disturbances compensation

Salim CHENNAI,M-T BENCHOUIA

Journal Article