Natural frequencies rotor

Critical speed and natural frequency of rotary shaft were obtained experimentally using Fast Fourier Transform. Critical speed varies in the range of 5% to 8.5% due to change in crack depth and crack location. Variation of natural frequency was observed 6% to 12% due to change in crack depth and crack location. Frequency vs. amplitude analysis of rotary shaft carried out using Fast Fourier Transform analyzer.

9p cleopatrahuynh 01-06-2020 8 0   Download

In this paper, an analytical solution for whirling analysis of axial-loaded Timoshenko rotor is presented and corresponding basic functions are derived. The set of governing equations for whirling analysis of the rotor consists of four coupled partial differential equations; using complex displacements, these equations can be reduced to two coupled partial differential equations.

12p tohitohi 19-05-2020 14 0   Download