Vibration Analysis of Collecting Electrodes by means of the Hybrid Finite Element Method

Table 2

Frequencies of free vibrations obtained in the hybrid model and Abaqus.

	Hybrid model	Abaqus
		Lumped mass formulation		Consistent mass formulation
	,
	[s^−1]	[s^−1]	[%]	[s^−1]	[%]	[%]
1,…,6	0	0	—	0	—	—
7	0.660	0.661	0.13	0.660	0.04	0.15
8	1.608	1.609	0.06	1.608	0.01	0.06
9	1.830	1.838	0.42	1.831	0.06	0.38
10	3.332	3.338	0.18	3.333	0.04	0.15
11	3.605	3.637	0.88	3.609	0.11	0.78
12	5.277	5.299	0.41	5.284	0.13	0.28
13	5.974	6.068	1.55	5.988	0.23	1.34
14	7.535	7.595	0.79	7.556	0.28	0.52
15	8.907	9.124	2.38	8.943	0.40	2.02
16	10.189	10.325	1.32	10.237	0.47	0.86