Plate Vibration

Compute the fundamental vibration frequency of a plate subjected to simply supported or clamped boundary conditions.

To perform a vibration analysis of a laminated composite plate, select the Vibration tab from the Plate Analysis window. Once the Laminate and Plate Geometry have been defined, complete the following two steps in the Vibration tab (see image below):

1. Specify Boundary Conditions - The Boundary Condition drop-down menu contains three different boundary conditions that can be selected:
   • SSSS denotes a plate that is simply supported along all four edges (see part a of the image below).
   • SSCC denotes a plate that is simply supported along the two edges that span the width and clamped along the two edges that span the length (see part b of the image below).
   • CCCC denotes a plate that is clamped along all four edges (see part c of the image below).
2. Calculate Results - After specifying the boundary conditions for the problem, click Calculate to compute the fundamental vibration frequency of the plate. The fundamental vibration frequency is shown in the display window of the Calculate tab (expressed in both radians/second and in Hertz).