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Table 2 First six frequencies for uncracked and cracked single blade for rotational velocity \(=\) 500 rad/s

From: Static fracture and modal analysis simulation of a gas turbine compressor blade and bladed disk system

Mode number Uncracked 4 mm crack depth 8 mm crack depth 16 mm crack depth
1 311.6 310.4 305.7 298.9
2 984.1 970.5 939.4 896.2
3 1077.8 1077.3 1076.3 1071.2
4 2085.7 2084.3 2055.2 1997.7
5 2250.4 2246.9 2213.3 2181.0
6 2727.3 2722.7 2704.3 2670.1