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Novel piezoelectric material characterization with hysteresis, creep, vibration and saturation non-linearity effects /Dr. Ahmad Zhafran Ahmad Mazlan

Novel piezoelectric material characterization with hysteresis, creep, vibration and saturation non-linearity effects_ Dr. Ahmad Zhafran Ahmad Mazlan

Abstract This research aims to investigate the presence of four non-linear characteristics (i.e., hysteresis, saturation, creep and vibration) when a piezoelectric patch material is acted as actuator for the AVC of a beam. The parameters such as frequencies and voltages are taken into account for the piezoelectric patch material characterization and the vibration before and after activation of PID controller in AVC system are measured. From the results, the piezoelectic actuator posed all the four non-linearity effects and increased significantly with the increased of operating frequencies and voltages. In term of controller, PGS shows the best performance by scoring 3/5 of highest vibration attenuation percentages compared to manual and Z-N methods. For the frequency dependent excitation, the effective frequency range for the AVC system is determined between 75 Hz to 245 1-IZ with the highest vibration attenuation of 79.6 % occurred at the second natural frequency of the beam.

Contributor(s): Dr. Ahmad Zhafran Ahmad Mazlan - Author Subject Keywords: hysteresis ; saturation ; creep ; vibration First presented to the public: 8/15/2019 Original Publication Date: 9/23/2020 Previously Published By: Universiti Sains Malaysia Place Of Publication: School of Mechanical Engineering Citation: License Grantor / Date Granted:   / ( View License ) Date Deposited 2020-09-23 17:26:18.353 Submitter: Nor Hayati Ismail

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