Theoretical and Experimental Study of Active Vibration Control of a Cylindrical Shell Using Piezoelectric Disks

Loghmani, Ali; Danesh, Mohammad; Keshmiri, Mehdi; Savadi, Mohammad Mahdi

doi:10.1260/0263-0923.34.3.269

Cited by 31 publications

(23 citation statements)

References 25 publications

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“…In the case of shaped piezoelectric patches, the practicality can be limited by the fact that the piezoelectric design is dependent on the structure's dynamic response and the modes that need to be controlled. [8][9][10][11][12][13][14][15] Regardless of the degree of practicality, the control results obtained were generally not optimal. Here, the term optimal is used to refer to the performance that results in the maximum attenuation of the radiated sound power.…”

Section: Introductionmentioning

confidence: 99%

Active control of simply supported cylindrical shells using the weighted sum of spatial gradients control metric

Aslani

Sommerfeldt

Blotter

2018

The Journal of the Acoustical Society of America

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It is often desired to reduce sound radiated from cylindrical shells. Active structural acoustic control (ASAC) provides a means of controlling the structural vibration in a manner to efficiently reduce the radiated sound. Previous work has often required a large number of error sensors to reduce the radiated sound power, and the control performance has been sensitive to the location of error sensors. The ultimate objective is to provide global sound power reduction using a minimal number of local error measurements, while also minimizing any dependence on error sensor locations. Recently, a control metric referred to as weighted sum of spatial gradients (WSSG) was developed for ASAC. Specific features associated with WSSG make this method robust under a variety of conditions. In this work, the WSSG control metric is extended to curved structures, specifically a simply supported cylindrical shell. It is shown that global attenuation of the radiated sound power is possible using only one local error measurement. It is shown that the WSSG control metric provides a solution approximating the optimal solution of attenuating the radiated sound power, with minimal dependence on the error sensor location. Numerical and experimental results are presented to demonstrate the effectiveness of the method.

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Section: Introductionmentioning

confidence: 99%

Active control of simply supported cylindrical shells using the weighted sum of spatial gradients control metric

Aslani

Sommerfeldt

Blotter

2018

The Journal of the Acoustical Society of America

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“…[4][5][6][7][8][9] Moreover, various actuators based on smart materials, like piezoelectric ceramic and shape memory alloy, have also been investigated. [10][11][12] Nevertheless, they are probably faced with severe challenges when dealing with vibration problems with strong energy. Since these methods rely on external energy to suppress vibration, it is difficult for most of the smart material actuators to conquer strong vibration due to limited energy output.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear vibration control for flexible manipulator using 1: 1 internal resonance absorber

Bian

Gao

2018

Journal of Low Frequency Noise, Vibration and Active Control

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The main task of this paper is to put forward a vibration absorption method for attenuating nonlinear vibration of the flexible manipulator based on modal interaction. A vibration absorber is suggested to establish the 1:1 internal resonance state with the flexible manipulator, thereby transferring the vibration energy from the flexible manipulator to the vibration absorber. In the presence of damping, the vibration energy of the flexible manipulator can be effectively dissipated by the vibration absorber. Since this method puts an emphasis on constructing an internal energy transfer channel between the flexible manipulator and the vibration absorber rather than directly responding to external excitations, it is particularly convenient to reduce nonlinear vibration induced by unknown external excitations. Numerical simulations and virtual prototyping simulations have verified this method's feasibility.

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“…Sun et al [34] designed a multimodal fuzzy sliding mode controller to provide active vibration control of conical shell structure. Loghmani et al [35] theoretically and experimentally studied the active vibration control of a cylindrical shell using piezoelectric disks. He and Chen [36] proposed a hybrid optimization strategy for design of piezoelectric cylindrical flat shell structure.…”

Section: Introductionmentioning

confidence: 99%

Active vibration control of composite shallow shells: An integrated approach

Rahman¹,

Alam²,

Junaid³

2018

J. MECH. ENG. SCI.

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Active vibration control of smart composite shallow shells with distributed piezoelectric sensors and actuators is presented in this work. An integrated approach is used for recording the uncontrolled and controlled vibration response under pressure impulse load. The FE model developed in ABAQUS is utilized to generate the global mass, stiffness and load matrices of the system. The system matrices are arranged in statespace format and the dynamic equations of the system are obtained. The controlled responses are achieved using the inputs from FE model in ABAQUS in conjunction with the developed MATLAB codes for Constant Gain Velocity Feedback (CGVF) and Linear Quadratic Regulator (LQR) control strategies. The method is first validated by comparing the natural frequencies obtained using the ABAQUS generated matrices with that obtained using an FE model with four noded quadrilateral shallow shell element based on efficient zigzag theory. The shell element uses the concept of electric nodes to satisfy the equipotential condition of electrode surface. An 8-noded linear piezoelectric brick element is used for piezoelectric layers and an 8-noded quadrilateral continuum shell element is used for the elastic layers of hybrid shells for making the finite element mesh in ABAQUS. The non-dimensional natural frequencies and active vibration control responses for hybrid composite cylindrical and spherical shells are presented for clamped-clamped and cantilever boundary conditions. Boundary conditions have significant effect on vibration amplitude, control voltage and settling time. In comparison to CGVF controller, a better control in lesser time is achieved with LQR controller for a shell with similar boundary conditions. Larger gain values (G) are required for vibration control of thick shells.

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Theoretical and Experimental Study of Active Vibration Control of a Cylindrical Shell Using Piezoelectric Disks

Cited by 31 publications

References 25 publications

Active control of simply supported cylindrical shells using the weighted sum of spatial gradients control metric

Active control of simply supported cylindrical shells using the weighted sum of spatial gradients control metric

Nonlinear vibration control for flexible manipulator using 1: 1 internal resonance absorber

Active vibration control of composite shallow shells: An integrated approach

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