Numerical study of grid distribution effect on accuracy of GDQ method of FGPM actuator

Abstract The sensors and actuators are made by piezoelectric materials. Some drawbacks are available with the traditional design. To alleviate the drawbacks, Functionally Graded Piezoelectric Materials (FGPMs) have been designed. These materials are widely used in various engineering applications and medical science. Functionally graded piezoelectric actuators play a vital role in medical applications. To transmit a signal, proper bandwidth is required. So the accurate natural frequencies are needed. In this modeling, beam type design is taken into consideration. The available equations are solved by Generalized Differential Quadrature (GDQ) method. The accuracy of GDQ method is sensitive to the grid point distribution. In this work, uniform grid distribution is used to evaluate the natural frequency of FGPM actuator.

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