Dynamic Finite Element Analysis of Bending-Torsion Coupled Beams Subjected to Combined Axial Load and End Moment

Table 7

The first three bending natural frequencies (Hz) of the clamped-clamped aluminium beam for various axial loads: 1-element DFE, 5-element FEM, and ANSYS models.

Load (N)	1st				2nd				3rd
	DFE	Experiment	FEM	ANSYS	DFE	Experiment	FEM	ANSYS	DFE	Experiment	FEM	ANSYS
1962	36.0	35.9	36.1	36.1	93.1	92.8	94.0	94.1	177.0	176.2	180.3	180.5
4022	40.0	39.9	40.1	40.1	98.9	98.5	99.8	99.8	184.0	183.3	187.7	187.7
6671	44.5	44.3	44.6	44.6	106.6	106.3	107.4	107.4	193.9	192.2	196.5	196.7
7750	46.4	45.3	46.5	46.5	109.6	109.4	110.5	110.6	197.6	196.8	200.9	201.2
9810	49.5	49.4	49.6	49.6	114.9	114.7	115.7	115.6	204.4	203.8	207.4	207.4