• Mithun Raghunandan
• Rahul N Dixit
• Dr Tulsidas D

One of the methods to determine natural frequency and the mode shapes of an object is by using modal analysis. In the present work, analysis of a 1m length shaft of diameter 6 mm is performed experimentally for two different boundary conditions and first two modes are extracted for fixed-free and free-free boundary condition. The critical frequency of the shaft is determined and the results are compared with theoretical results. The shaft is analyzed using ANSYS software with pre determined boundary conditions and mode shapes are extracted. A Campbell diagram is plotted to determine the shafts response as a function of its oscillation.

Natural frequency, Modal Analysis, Critical speed, Campbell diagram, ANSYS Workbench

"EXPERIMENTAL INVESTIGATION AND ANALYSIS OF CRITICAL SPEED OF SHAFT", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 5, page no.378-383, May-2019, Available :http://www.jetir.org/papers/JETIR1905953.pdf

"EXPERIMENTAL INVESTIGATION AND ANALYSIS OF CRITICAL SPEED OF SHAFT", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 5, page no. pp378-383, May-2019, Available at : http://www.jetir.org/papers/JETIR1905953.pdf