Page 56 - Thomson, William Tyrrell-Theory of Vibration with Applications-Taylor _ Francis (2010)
P. 56
Chap. 2 Problems 43
Figure P2-21.
2-22 Figure P2-22 shows a simplified model of a single-story building. The columns are
assumed to be rigidly imbedded at the ends. Determine its natural period r. Refer to
the table of stiffness at the end of the chapter.
Figure P2-22.
2-23 Determine the effective mass of the columns of Prob. 2-22 assuming the deflection to
be
1 / TTX\
= - COS — I
2-24 Determine the effective mass at point n and its natural frequency for the system
shown in Fig. P2-24.
Figure P2-24.
2-25 Determine the effective mass of the rocket engine shown in Fig. P2-25 to be added to
the actuator mass
Figure P2-25.
