Dynamics of Machines - Part II - IFS.pdf

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First Mode Shape − Freq.: 1.1701 Hz
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(b)
(c)
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First Mode Shape − Freq.: 0.82736 Hz
First Mode Shape − Freq.: 0.67554 Hz
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Second Mode Shape − Freq.: 7.7751 Hz
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Second Mode Shape − Freq.: 5.4979 Hz
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Second Mode Shape − Freq.: 4.489 Hz
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Figure 24: First and second mode shapes of the mechanical system modelled with 2 D.O.F. (a)
(1.CASE) – one mass attached to each of the two coordinates; (b) (2.CASE) – two masses
attached to each one of the two coordinates; (c) (3.CASE) – three masses attached to each one
of the two coordinates.
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