Vibrational Study of the Spinning Disc Using LDV Technique

This paper reports on the application of experimental optical methods to study vibration of the centrally clamped disc. The natural frequencies and mode shapes with zero rotational speed are analyzed. Influence of rotational velocity to shifting natural frequencies was investigated with optical derotator. To evaluate shifting of natural frequencies run up analysis were measured. In run-up analysis the frequencies of centrally clamped disc considering increased rotational speed are obtained. Obtained waterfall plots show vibration behavior of spinning disc.