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Mathematical Problems in Engineering
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Mathematical Problems in Engineering
/
2016
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Article
/
Tab 3
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Research Article
Study on Vibration of Marine Diesel-Electric Hybrid Propulsion System
Table 3
Free vibration natural frequency.
Wn/harmonic
1
2
3
4
5
r/min
834.9
1734.1
5046.4
10478.6
17314.0
Hz
13.9
28.9
84.1
174.6
288.6