Vibration characteristic of rotating composite blade: A Numerical approach

Abstract

Coating on turbine blade plays a vital role to enhance the mechanical properties; in order to this, the current work represents vibration characteristics for the coated rotating blade. Considering the temperature dependent material properties and stress hardening effect, natural frequencies are obtained using a finite element numerical approach. The dynamic behavior is studied for the coated and uncoated blade. The vibration response of the rotating coated blade is studied and observed the softening in frequencies as rise in the temperature.