Abstract
This paper presents the modal analysis of PZT-4, PZT-5A, PZT-5H and PZT-8 discs at different poisons ratios such as 0.2, 0.31 and 0.4. Poisons ratio is 0.31 for all piezoelectric materials. Therefore, first at 0.31 poisons ratio the natural frequencies at different modes of the above mentioned PZTs are studied. And also studied the effect of poisons ratio on the natural frequencies of PZT. The dimensions of PZT disc are 32 mm diameter and 2mm thickness. Simulation tool (Ansys 14.5) have been used for studying the modal analysis of the PZT discs by considering undamped condition. For PZT-5A, PZT-5H and PZT-8,the maximum deformation 26.776 µm is occurred at the mode 6. For PZT-4, at mode 6 maximum deformation is 26.56 µm.
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