Mechanical systems (Chapter 3)

The beam geometric properties are input (all as unity) but not used for this solution. The torsional moment of inertia It=W r2/g=1600 lb-sec2-ft. A lateral master degree of freedom (MDOF) and a rotational MDOF are selected at the mass. The spring length is used only to define the spring direction. Result. f1=1.0981 Hz. f2= 1.4406 Hz ................
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