Modal Analysis of a Gearbox Housing in Order to Avoid Resonance …
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Table 2 Comparison of natural frequencies (EMA data with FEA results)
Mode no.
Natural frequency (Hz)/deviation to EMA (%)
EMA
Feasolidworks
FEA-Inventor
1
584
571.4
−2.16
564.18
−3.39
2
608
633.4
4.17
618.63
1.75
3
728
752.4
3.35
745.60
2.42
4
1115
1136.9
1.96
1112.96
−0.18
5
1242
1208.8
−2.67
1178.73
−5.09
6
1410
1447.6
2.67
1431.30
1.51
a. Mode 1
b . Mode 2
c. Mode 3
d . Mode 4
e. Mode 5
f . Mode 6
Fig. 4 First six vibration modes obtained from FEM in Inventor