Conical shell vibration control with distributed piezoelectric sensor and actuator layer

Jamshidi, Rasa; Jafari, Ali

doi:10.1016/j.compstruct.2020.113107

Cited by 27 publications

(10 citation statements)

References 13 publications

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“…These various controllers can be applied to any structure to reduce undesired vibration. For example, for vibration reduction of conical shells there are many related articles in which piezoelectric patches with different distributions used [15][16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Optimal negative derivative feedback controller design for collocated systems based on H2 and H∞ method

Jamshidi

Collette

2022

Mechanical Systems and Signal Processing

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Section: Introductionmentioning

confidence: 99%

Optimal negative derivative feedback controller design for collocated systems based on H2 and H∞ method

Jamshidi

Collette

2022

Mechanical Systems and Signal Processing

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“…The results only could describe the piezoelectric layer effects on each mode response, separately and not in the total response of the shell. Jamshidi and Jafari (2020) studied conical shell vibration control with distributed piezoelectric sensor and actuator layer. They considered a distributed piezoelectric sensor layer on the conical shell and a distributed piezoelectric actuator layer, and by applying a proportional differential controller, the vibration of the conical shell was mitigated.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear vibration of conical shell with a piezoelectric sensor patch and a piezoelectric actuator patch

Jamshidi

Jafari

2021

Journal of Vibration and Control

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In this study, nonlinear vibration of a conical shell with a piezoelectric sensor patch and a piezoelectric actuator patch is evaluated. The strain displacement relation is considered to be nonlinear and based on that the equations of motion and piezoelectric sensor output signal are extracted. For the first time, nonlinear electromechanical equations of motion for the conical shell with a piezoelectric sensor layer and a piezoelectric actuator layer are extracted in detail and presented. The producer of extraction of conical shell electromechanical equations of motions is presented for further clarifications. The output signal of the piezoelectric sensor patch considering the nonlinear strain displacement equation of motion is derived. For controlling the vibration actively, a proportional controller is defined by which the applied actuator signal is determined. The nonlinear electromechanical equations of motion are expanded based on conical shell strains. By applying the Galerkin method, the nonlinear time-domain equations are extracted. The complicated attained equations are solved using the harmonic balance method. Conical shell nonlinear frequency response in uncontrolled condition and controlled condition is computed and compared with each other. The frequency response shows that the active vibration control of the conical shell increases the nonlinearity of the system and reduces the vibration amplitude. In addition, free nonlinear vibration of the proposed system is calculated and presented. The results show higher impacts of piezoelectric patches on the conical shell free vibration response and they can reduce the vibration amplitude dramatically.

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“…In reference [20], the applicability of a piezoelectric layer in a conical shell vibration mitigation is vividly determined by using an optimal controller which decreases the actuator-applied voltage amplitude dramatically. Kim et al [21] utilized the characteristics of piezoelectric materials to fabricate a multilayered cross-shaped piezoelectric sensor for torsional load analysis.…”

Section: Introductionmentioning

confidence: 99%

Modeling Analysis and 3D Force Prediction of a Novel Piezoelectric Tactile Sensor

Wang

Yang

et al. 2021

Journal of Sensors

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To measure three-dimensional (3D) forces efficiently and improve the sensitivity of tactile sensors, a novel piezoelectric tactile sensor with a “sandwich” structure is proposed in this paper. An array of circular truncated cone-shaped sensitive units made of polyvinylidene fluoride (PVDF) is sandwiched between two flexible substrates of polydimethylsiloxane (PDMS). Based on the piezoelectric properties of the PVD F sensitive units, finite element modelling and analysis are carried out for the sensor. The relation between the force and the voltage of the sensitive unit is obtained, and a tactile perception model is established. The model can distinguish the sliding direction and identify the material of the slider loaded on the sensor. A backpropagation neural network (BPNN) algorithm is built to predict the 3D forces applied on the tactile sensor model, and the 3D forces are decoupled from the voltages of the sensitive units. The BPNN is further optimized by a genetic algorithm (GA) to improve the accuracy of the 3D force prediction, and fairly good prediction results are obtained. The experimental results show that the novel tactile sensor model can effectively predict the 3D forces, and the BPNN model optimized by the GA can predict the 3D forces with much higher precision, which also improves the intelligence of the sensor. All the prediction results indicate that the BPNN algorithm has very efficient performance in 3D force prediction for the piezoelectric tactile sensor.

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Conical shell vibration control with distributed piezoelectric sensor and actuator layer

Cited by 27 publications

References 13 publications

Optimal negative derivative feedback controller design for collocated systems based on H2 and H∞ method

Optimal negative derivative feedback controller design for collocated systems based on H2 and H∞ method

Nonlinear vibration of conical shell with a piezoelectric sensor patch and a piezoelectric actuator patch

Modeling Analysis and 3D Force Prediction of a Novel Piezoelectric Tactile Sensor

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