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Mickaël Lallart - One of the best experts on this subject based on the ideXlab platform.

  • Vibration reduction for smart periodic Structures via periodic piezoelectric arrays with nonlinear interleaved-switched electronic networks
    Mechanical Systems and Signal Processing, 2017
    Co-Authors: Bin Bao, Daniel Guyomar, Mickaël Lallart
    Abstract:

    Abstract Smart periodic Structures covered by periodically distributed piezoelectric patches have drawn more and more attention in recent years for wave propagation attenuation and corresponding structural vibration suppression. Since piezoelectric materials are special type of energy conversion materials that link mechanical characteristics with electrical characteristics, shunt circuits coupled with such materials play a key role in the wave propagation and/or vibration control performance in smart periodic Structures. Conventional shunt circuit designs utilize resistive shunt ( R -shunt) and resonant shunt ( RL -shunt). More recently, semi-passive nonlinear approaches have also been developed for efficiently controlling the vibrations of such Structures. In this paper, an innovative smart periodic Beam Structure with nonlinear interleaved-switched electric networks based on synchronized switching damping on inductor (SSDI) is proposed and investigated for vibration reduction and wave propagation attenuation. Different from locally resonant band gap mechanism forming narrow band gaps around the desired resonant frequencies, the proposed interleaved electrical networks can induce new broadly low-frequency stop bands and broaden primitive Bragg stop bands by virtue of unique interleaved electrical configurations and the SSDI technique which has the unique feature of realizing automatic impedance adaptation with a small inductance. Finite element modeling of a Timoshenko electromechanical Beam Structure is also presented for validating dispersion properties of the Structure. Both theoretical and experimental results demonstrate that the proposed Beam Structure not only shows better vibration and wave propagation attenuation than the smart Beam Structure with independent switched networks, but also has technical simplicity of requiring only half of the number of switches than the independent switched network needs.

  • Vibration reduction for smart periodic Structures via periodic piezoelectric arrays with nonlinear interleaved-switched electronic networks
    Mechanical Systems and Signal Processing, 2017
    Co-Authors: Bin Bao, Daniel Guyomar, Mickaël Lallart
    Abstract:

    Smart periodic Structures covered by periodically distributed piezoelectric patches have drawn more and more attention in recent years for wave propagation attenuation and corresponding structural vibration suppression. Since piezoelectric materials are special type of energy conversion materials that link mechanical characteristics with electrical characteristics, shunt circuits coupled with such materials play a key role in the wave propagation and/or vibration control performance in smart periodic Structures. Conventional shunt circuit designs utilize resistive shunt (R-shunt) and resonant shunt (RL-shunt). More recently, semi-passive nonlinear approaches have also been developed for efficiently controlling the vibrations of such Structures. In this paper, an innovative smart periodic Beam Structure with nonlinear interleaved-switched electric networks based on synchronized switching damping on inductor (SSDI) is proposed and investigated for vibration reduction and wave propagation attenuation. Different from locally resonant band gap mechanism forming narrow band gaps around the desired resonant frequencies, the proposed interleaved electrical networks can induce new broadly low-frequency stop bands and broaden primitive Bragg stop bands by virtue of unique interleaved electrical configurations and the SSDI technique which has the unique feature of realizing automatic impedance adaptation with a small inductance. Finite element modeling of a Timoshenko electromechanical Beam Structure is also presented for validating dispersion properties of the Structure. Both theoretical and experimental results demonstrate that the proposed Beam Structure not only shows better vibration and wave propagation attenuation than the smart Beam Structure with independent switched networlcs, but also has technical simplicity of requiring only half of the number of switches than the independent switched network needs. (C) 2016 Elsevier Ltd. All rights reserved.

Bin Bao - One of the best experts on this subject based on the ideXlab platform.

  • Vibration reduction for smart periodic Structures via periodic piezoelectric arrays with nonlinear interleaved-switched electronic networks
    Mechanical Systems and Signal Processing, 2017
    Co-Authors: Bin Bao, Daniel Guyomar, Mickaël Lallart
    Abstract:

    Abstract Smart periodic Structures covered by periodically distributed piezoelectric patches have drawn more and more attention in recent years for wave propagation attenuation and corresponding structural vibration suppression. Since piezoelectric materials are special type of energy conversion materials that link mechanical characteristics with electrical characteristics, shunt circuits coupled with such materials play a key role in the wave propagation and/or vibration control performance in smart periodic Structures. Conventional shunt circuit designs utilize resistive shunt ( R -shunt) and resonant shunt ( RL -shunt). More recently, semi-passive nonlinear approaches have also been developed for efficiently controlling the vibrations of such Structures. In this paper, an innovative smart periodic Beam Structure with nonlinear interleaved-switched electric networks based on synchronized switching damping on inductor (SSDI) is proposed and investigated for vibration reduction and wave propagation attenuation. Different from locally resonant band gap mechanism forming narrow band gaps around the desired resonant frequencies, the proposed interleaved electrical networks can induce new broadly low-frequency stop bands and broaden primitive Bragg stop bands by virtue of unique interleaved electrical configurations and the SSDI technique which has the unique feature of realizing automatic impedance adaptation with a small inductance. Finite element modeling of a Timoshenko electromechanical Beam Structure is also presented for validating dispersion properties of the Structure. Both theoretical and experimental results demonstrate that the proposed Beam Structure not only shows better vibration and wave propagation attenuation than the smart Beam Structure with independent switched networks, but also has technical simplicity of requiring only half of the number of switches than the independent switched network needs.

  • Vibration reduction for smart periodic Structures via periodic piezoelectric arrays with nonlinear interleaved-switched electronic networks
    Mechanical Systems and Signal Processing, 2017
    Co-Authors: Bin Bao, Daniel Guyomar, Mickaël Lallart
    Abstract:

    Smart periodic Structures covered by periodically distributed piezoelectric patches have drawn more and more attention in recent years for wave propagation attenuation and corresponding structural vibration suppression. Since piezoelectric materials are special type of energy conversion materials that link mechanical characteristics with electrical characteristics, shunt circuits coupled with such materials play a key role in the wave propagation and/or vibration control performance in smart periodic Structures. Conventional shunt circuit designs utilize resistive shunt (R-shunt) and resonant shunt (RL-shunt). More recently, semi-passive nonlinear approaches have also been developed for efficiently controlling the vibrations of such Structures. In this paper, an innovative smart periodic Beam Structure with nonlinear interleaved-switched electric networks based on synchronized switching damping on inductor (SSDI) is proposed and investigated for vibration reduction and wave propagation attenuation. Different from locally resonant band gap mechanism forming narrow band gaps around the desired resonant frequencies, the proposed interleaved electrical networks can induce new broadly low-frequency stop bands and broaden primitive Bragg stop bands by virtue of unique interleaved electrical configurations and the SSDI technique which has the unique feature of realizing automatic impedance adaptation with a small inductance. Finite element modeling of a Timoshenko electromechanical Beam Structure is also presented for validating dispersion properties of the Structure. Both theoretical and experimental results demonstrate that the proposed Beam Structure not only shows better vibration and wave propagation attenuation than the smart Beam Structure with independent switched networlcs, but also has technical simplicity of requiring only half of the number of switches than the independent switched network needs. (C) 2016 Elsevier Ltd. All rights reserved.

Daniel Guyomar - One of the best experts on this subject based on the ideXlab platform.

  • Vibration reduction for smart periodic Structures via periodic piezoelectric arrays with nonlinear interleaved-switched electronic networks
    Mechanical Systems and Signal Processing, 2017
    Co-Authors: Bin Bao, Daniel Guyomar, Mickaël Lallart
    Abstract:

    Abstract Smart periodic Structures covered by periodically distributed piezoelectric patches have drawn more and more attention in recent years for wave propagation attenuation and corresponding structural vibration suppression. Since piezoelectric materials are special type of energy conversion materials that link mechanical characteristics with electrical characteristics, shunt circuits coupled with such materials play a key role in the wave propagation and/or vibration control performance in smart periodic Structures. Conventional shunt circuit designs utilize resistive shunt ( R -shunt) and resonant shunt ( RL -shunt). More recently, semi-passive nonlinear approaches have also been developed for efficiently controlling the vibrations of such Structures. In this paper, an innovative smart periodic Beam Structure with nonlinear interleaved-switched electric networks based on synchronized switching damping on inductor (SSDI) is proposed and investigated for vibration reduction and wave propagation attenuation. Different from locally resonant band gap mechanism forming narrow band gaps around the desired resonant frequencies, the proposed interleaved electrical networks can induce new broadly low-frequency stop bands and broaden primitive Bragg stop bands by virtue of unique interleaved electrical configurations and the SSDI technique which has the unique feature of realizing automatic impedance adaptation with a small inductance. Finite element modeling of a Timoshenko electromechanical Beam Structure is also presented for validating dispersion properties of the Structure. Both theoretical and experimental results demonstrate that the proposed Beam Structure not only shows better vibration and wave propagation attenuation than the smart Beam Structure with independent switched networks, but also has technical simplicity of requiring only half of the number of switches than the independent switched network needs.

  • Vibration reduction for smart periodic Structures via periodic piezoelectric arrays with nonlinear interleaved-switched electronic networks
    Mechanical Systems and Signal Processing, 2017
    Co-Authors: Bin Bao, Daniel Guyomar, Mickaël Lallart
    Abstract:

    Smart periodic Structures covered by periodically distributed piezoelectric patches have drawn more and more attention in recent years for wave propagation attenuation and corresponding structural vibration suppression. Since piezoelectric materials are special type of energy conversion materials that link mechanical characteristics with electrical characteristics, shunt circuits coupled with such materials play a key role in the wave propagation and/or vibration control performance in smart periodic Structures. Conventional shunt circuit designs utilize resistive shunt (R-shunt) and resonant shunt (RL-shunt). More recently, semi-passive nonlinear approaches have also been developed for efficiently controlling the vibrations of such Structures. In this paper, an innovative smart periodic Beam Structure with nonlinear interleaved-switched electric networks based on synchronized switching damping on inductor (SSDI) is proposed and investigated for vibration reduction and wave propagation attenuation. Different from locally resonant band gap mechanism forming narrow band gaps around the desired resonant frequencies, the proposed interleaved electrical networks can induce new broadly low-frequency stop bands and broaden primitive Bragg stop bands by virtue of unique interleaved electrical configurations and the SSDI technique which has the unique feature of realizing automatic impedance adaptation with a small inductance. Finite element modeling of a Timoshenko electromechanical Beam Structure is also presented for validating dispersion properties of the Structure. Both theoretical and experimental results demonstrate that the proposed Beam Structure not only shows better vibration and wave propagation attenuation than the smart Beam Structure with independent switched networlcs, but also has technical simplicity of requiring only half of the number of switches than the independent switched network needs. (C) 2016 Elsevier Ltd. All rights reserved.

Bian Tian - One of the best experts on this subject based on the ideXlab platform.

  • A micro-force sensor with slotted-quad-Beam Structure for measuring the friction in MEMS bearings
    Sensors (Switzerland), 2013
    Co-Authors: Huan Liu, Shuming Yang, Yulong Zhao, Zhuangde Jiang, Bian Tian
    Abstract:

    Presented here is a slotted-quad-Beam Structure sensor for the measurement of friction in micro bearings. Stress concentration slots are incorporated into a conventional quad-Beam Structure to improve the sensitivity of force measurements. The performance comparison between the quad-Beam Structure sensor and the slotted-quad-Beam Structure sensor are performed by theoretical modeling and finite element (FE) analysis. A hollow stainless steel probe is attached to the mesa of the sensor chip by a tailor-made organic glass fixture. Concerning the overload protection of the fragile Beams, a glass wafer is bonded onto the bottom of sensor chip to limit the displacement of the mesa. The calibration of the packaged device is experimentally performed by a tri-dimensional positioning stage, a precision piezoelectric ceramic and an electronic analytical balance, which indicates its favorable sensitivity and overload protection. To verify the potential of the proposed sensor being applied in micro friction measurement, a measurement platform is established. The output of the sensor reflects the friction of bearing resulting from dry friction and solid lubrication. The results accord with the theoretical modeling and demonstrate that the sensor has the potential application in measuring the micro friction force under stable stage in MEMS machines.

Huan Liu - One of the best experts on this subject based on the ideXlab platform.

  • A micro-force sensor with slotted-quad-Beam Structure for measuring the friction in MEMS bearings
    Sensors (Switzerland), 2013
    Co-Authors: Huan Liu, Shuming Yang, Yulong Zhao, Zhuangde Jiang, Bian Tian
    Abstract:

    Presented here is a slotted-quad-Beam Structure sensor for the measurement of friction in micro bearings. Stress concentration slots are incorporated into a conventional quad-Beam Structure to improve the sensitivity of force measurements. The performance comparison between the quad-Beam Structure sensor and the slotted-quad-Beam Structure sensor are performed by theoretical modeling and finite element (FE) analysis. A hollow stainless steel probe is attached to the mesa of the sensor chip by a tailor-made organic glass fixture. Concerning the overload protection of the fragile Beams, a glass wafer is bonded onto the bottom of sensor chip to limit the displacement of the mesa. The calibration of the packaged device is experimentally performed by a tri-dimensional positioning stage, a precision piezoelectric ceramic and an electronic analytical balance, which indicates its favorable sensitivity and overload protection. To verify the potential of the proposed sensor being applied in micro friction measurement, a measurement platform is established. The output of the sensor reflects the friction of bearing resulting from dry friction and solid lubrication. The results accord with the theoretical modeling and demonstrate that the sensor has the potential application in measuring the micro friction force under stable stage in MEMS machines.