A New Finite Element Procedure for the Dynamic Analysis of BDFGS Plates Located on Pasternak Foundation Subjected to the Moving Oscillator Load

The main goal of this article is to establish a new finite element procedure based on Quasi-3D theory to investigate the dynamic response of bi-directional functionally graded sandwich (BDFGS) plates located on the Pasternak foundation (PF) under the moving oscillator load. The BDFGS plate comprises mechanical properties varies in two directions, i.e., x-, and z-axis. The PF consists of two parameters as spring stiffness (k1) and shear layer stiffness (k2). The moving oscillator load is a system including spring-elastic K and damper c connected to two masses m 1 and m 2, in which m 2 is always in contact with the surface of the plate during travel. The performance of the proposed element is verified by comparing the obtained results with available results in the literature. Then, some examples are produced to examine the effects of the input parameters on the vibration of BDFGS plates located on PF subjected to the moving oscillator load with line and circular trajectories. © 2023, The Author(s), under exclusive licence to Shiraz University.