Vibrations of Rotating Cantilever Blading: Theoretical Approaches to the Frequency Problem Based on Energy Methods

摘要: A theoretical expression is obtained for the work done due to centrifugal effects when a rotating cantilever blade executes small vibrations. The total potential energy and kinetic of system are formulated, use being made previously derived expressions stationary blade.By Rayleigh's method an equation fundamental frequency vibration established and, case straight uniform symmetrical cross-section, solution deduced based on approximate shape normal elastic curve. characteristic differential equations motion from by variational calculus. Coriolis effects, small, can be neglected in analyses.