Page 427 - Thomson, William Tyrrell-Theory of Vibration with Applications-Taylor _ Francis (2010)
P. 427
414 Classical Methods Chap. 12
0 40" 70"l05 "l4 5 "2 0 0 "
Figure P12-29.
12-30 Determine the natural modes of the simplified model of an airplane shown in Fig.
P12-30 where M/m = n and the beam of length / is uniform.
0 — I— Q — ^— 0
Figure P12-30.
12-31 Using Myklestad’s method, determine the natural frequencies and mode shapes of
the two-lumped-mass cantilever beam of Fig. PI2-31. Compare with previous results
by using infiuence coefficients.
m m
O-------O
Figure P12-31.
12-32 Determine the first two natural frequencies and mode shapes of the three-mass
cantilever of Fig. P12-32.
12-33 Using Myklestad’s method, determine the boundary equations for the simply sup
ported beam of Fig. P12-33.
