Free Vibration of a Perfectly Clamped-Free Beam with Stepwise Eccentric Distributed Masses

Table 4

Natural frequencies analytically derived for concentrated mass loads.

Mode	Uniform beam	Beam with stepped load
	[Hz]	Scenario	[Hz]
1	4.07690	G	4.07691
		H	4.07689
		I	4.07683
		J	4.07699
		K	4.07661
		L	4.07713
2	25.54951	G	25.55209
		H	25.54805
		I	25.53872
		J	25.56472
		K	25.51040
		L	25.58046
3	71.53939	G	71.58216
		H	71.51493
		I	71.39000
		J	71.75063
		K	71.11268
		L	71.88067