Stress and vibration analyses of a rotating disk with radial-dependant properties

In this paper, stress and vibration analyses of a rotatingFGM disk are proposed. The material of the disk isconsidered to be graded through the radial direction froma metal surface to a ceramic one according to a powerlaw function. The set of governing equation andboundary conditions for stress analysis are derived andsolved numerically by differential quadrature method(DQM) and radial and circumferential components of thestress are derived; these components of stress affect onthe dynamic behavior the disk, thus using obtainedstresses, the governing equation and correspondingboundary conditions of vibration analysis of the disk aresolved, again by using DQM and natural frequencies andmode shapes are derived. The effect of power law indexon components of stress and natural frequencies of thedisk are investigated.

کلیدواژه ها:

Rotating disk ، FGM ، DQM