Iranian Journal of Mechanical Engineering Transactions of ISME

Iranian Journal of Mechanical Engineering Transactions of ISME

Feedback Control Simulation of Induced Vibration of Piezoelectric Blade as a Sensor and Electrical Energy Generator

Authors
Zahra Parnian 1
Mohammad Kazem Moayyedi 2
Mehran Heidari 3
1 M.Sc., CFD and Turbulence Research Lab, Department of Mechanical Engineering, University of Qom, Qom, Iran Institute of Aerospace Studies, University of Qom, Qom, Iran
2 Associate Professor, CFD and Turbulence Research Lab, Department of Mechanical Engineering, University of Qom, Qom, Iran Institute of Aerospace Studies, University of Qom, Qom, Iran Institute of Aerospace Studies, University of Qom, Qom, Iran
3 Research Assistant, CFD and Turbulence Research Lab, Department of Mechanical Engineering, University of Qom, Qom, Iran Institute of Aerospace Studies, University of Qom, Qom, Iran
10.30506/ijmep.2024.2005286.1943
Abstract
The current research has studied the piezoelectric blade sensor from different views in order to control the oscillations of the circular cylinder present upstream of the piezoelectric blade and to control the fluctuating fluid flow around the blade using the force on the piezoelectric blade. The desired arrangement of a piezoelectric blade is placed downstream of a circular cylinder and with the help of a certain limit of blade oscillations, the hardness coefficient of the cylinder spring is applied from 65 (N/M) in normal condition to 100 (N/M) in the necessary condition. The controller as well as in other cases, the damping rate increases from zero to 0.02 (Nm/S) and in this way, the oscillations of the cylinder are controlled. In the same way, by controlling the oscillations of the cylinder, its effect on the oscillations of the blade, which is located downstream, has been investigated under the title of feedback effects. By controlling the feedback of the force on the piezoelectric blade in a closed loop, it is possible to monitor the displacement of the tip of the blade and the force on the piezoelectric blade. In these studies, it has been determined that in the case where the specific limit of the controller is 0.7 mm of the oscillations of the piezoelectric blade tip, due to the earlier application of the controller compared to the specific limit of 1 and 2 mm of the oscillations of the blade tip, the oscillations of the cylinder are Also, by comparing the state where the controller is included in the circuit compared to the state without the controller, it is clear that the oscillations of the blade and cylinder have been controlled to some extent.
Keywords
Computational fluid dynamics
Energy harvesting
Fluid-structure interaction
Induced vibrations
Piezoelectric sensors

Subjects

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  • Receive Date 03 July 2023
  • Revise Date 31 May 2024
  • Accept Date 23 June 2024