Prof. Jiawen Xu Profile

Prof. Jiawen Xu

Associate Professor at Southeast Univ

SPIE Involvement:

Author

Area of Expertise:

piezoelectric energy harvesting , nonlinear dynamics , actuator and sensor , electro-mechanical coupling

nonlinear tri-directional energy harvesting with broadband effects; damage detection adopting nonlinear effects; electro-mechanical coupling enhancement by linear stiffness compensation

Proceedings Article | 21 March 2019 Presentation + Paper

Vibration suppression of metamaterial with local resonators coupled by negative stiffness springs

Guobiao Hu, Lihua Tang, Jiawen Xu, Chunbo Lan, Raj Das

Proceedings Volume 10967, 109670A (2019) https://doi.org/10.1117/12.2514245

KEYWORDS: Metamaterials, Resonators, Transmittance, Wave propagation, Finite element methods, Vibration control

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Proceedings Article | 10 April 2018 Paper

Adaptive elastic metasurfaces for wave front manipulation

Shilong Li, Jiawen Xu, Jiong Tang

Proceedings Volume 10595, 105952K (2018) https://doi.org/10.1117/12.2296783

KEYWORDS: Wavefronts, Transducers, Phase shifts, Acoustics, Lenses, Wave propagation, Lithium, Capacitance, Modulation, Interfaces

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Proceedings Article | 10 April 2018 Paper

Tailoring vibration mode of a uniform beam by acoustic metamaterial synthesis

Jiawen Xu, Shilong Li, J. Tang

Proceedings Volume 10595, 105952L (2018) https://doi.org/10.1117/12.2296781

KEYWORDS: Metamaterials, Acoustics, Inductance, Transducers, Modal analysis

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Proceedings Article | 17 April 2017 Presentation + Paper

Adaptive GRIN lens based on piezoelectric metamaterial for acoustic beam focusing

Jiawen Xu, Shilong Li, J. Tang

Proceedings Volume 10164, 101641S (2017) https://doi.org/10.1117/12.2260341

KEYWORDS: Inductance, Refractive index, Wave propagation, Electromechanical design, Mathematical modeling, Metamaterials, Acoustics, GRIN lenses, Transducers, Performance modeling, Systems modeling, Finite element methods, Vibration isolation

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Proceedings Article | 17 April 2017 Presentation + Paper

Adaptive acoustic metamaterial with periodic piezoelectric network

Shilong Li, Jiawen Xu, J. Tang

Proceedings Volume 10164, 101640N (2017) https://doi.org/10.1117/12.2260333

KEYWORDS: Capacitors, Capacitance, Image segmentation, Electrodes, Acoustics, Inductance, Metamaterials, Wave propagation, Transducers, Electromechanical design, Vibration isolation, Systems modeling, Optimization (mathematics)

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Proceedings Article | 15 April 2016 Paper

Acoustic prism for continuous beam steering based on piezo-electric metamaterial

J. Xu, J. Tang

Proceedings Volume 9799, 97992I (2016) https://doi.org/10.1117/12.2219464

KEYWORDS: Metamaterials, Acoustics, Prisms, Beam steering, Transducers, Phase velocity, Refraction, Finite element methods, Dispersion, Actuators

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Proceedings Article | 2 April 2015 Paper

Piezoelectric cantilever-pendulum for multi-directional energy harvesting with internal resonance

J. Xu, J. Tang

Proceedings Volume 9431, 94310M (2015) https://doi.org/10.1117/12.2084427

KEYWORDS: Transducers, Energy harvesting, Complex systems, Mathematical modeling, Copper, Composites, Magnetism, Oscillators, System integration, Magnesium

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Proceedings Article | 10 April 2014 Paper

Fault detection in railway track using piezoelectric impedance

M. Cremins, Qi Shuai, Jiawen Xu, J. Tang

Proceedings Volume 9061, 90612R (2014) https://doi.org/10.1117/12.2045230

KEYWORDS: Ferroelectric materials, Transducers, Damage detection, Sensors, Integrated circuit design, Integrated circuits, Resistors, Signal to noise ratio, Structural health monitoring, Temperature metrology

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Proceedings Article | 1 April 2014 Paper

Inducing nonlinear dynamic response via piezoelectric circuitry integration

J. Xu, J. Tang

Proceedings Volume 9057, 905718 (2014) https://doi.org/10.1117/12.2045226

KEYWORDS: Wheatstone bridges, Transducers, Damage detection, Integrated circuit design, Integrated circuits, Complex systems, Ferroelectric materials, Nonlinear dynamics, System integration, Mathematical modeling

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Proceedings Article | 10 April 2013 Paper

Enhance piezoelectric energy harvesting by stiffness compensation using magnetic effect

Jiawen Xu, J. Tang

Proceedings Volume 8688, 86881H (2013) https://doi.org/10.1117/12.2009909

KEYWORDS: Magnetism, Transducers, Energy harvesting, Analytical research, System integration, Mathematical modeling, Piezoelectric effects, Energy efficiency, Systems modeling, Mechanical engineering

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