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SINGLE DEGREE OF FREEDOM STRUCTURES
Example Problem 5.9. Discuss the possibility of erratic jumps in the response amplitude of the inoored EST described in Example Problem 2-10. Assume that fcj //C3 = 50 ft2 and that the amplitude of the wave load increases very
slow ly at a constant excitation frequency, where pn /ki changes in the range of
0.4 to 0.6 ft. Let ( = 0.05.
Shown in Figure 5.10 are the amplitude-frequency plots for this ship, or the
a vs. u}/uj0 curves based on équation (5.87). The two curves shown, one for
the smaller load and one for the larger load, were generated by calculating the
SINGLE DEGREE OF FREEDOM STRUCTURES
Example Problem 5.9. Discuss the possibility of erratic jumps in the response amplitude of the inoored EST described in Example Problem 2-10. Assume that fcj //C3 = 50 ft2 and that the amplitude of the wave load increases very
slow ly at a constant excitation frequency, where pn /ki changes in the range of
0.4 to 0.6 ft. Let ( = 0.05.
Shown in Figure 5.10 are the amplitude-frequency plots for this ship, or the
a vs. u}/uj0 curves based on équation (5.87). The two curves shown, one for
the smaller load and one for the larger load, were generated by calculating the