Page 279 - Fluid-Structure Interactions Slender Structure and Axial Flow (Volume 1)
P. 279
260 SLENDER STRUCTURES AND AXIAL FLOW
w
20
w 10
0
0 0.1 0.2 0.3. 0.4 0.5 0.6 0.7
CL
(b)
Figure 4.35 Regions of simple parametric (unshaded) and combination resonances (shaded) for
cantilevered pipes with elastically supported downstream end, for = 0.125, y = 0, a = and
uo = 4.5: -, K = K* = 0; - + - , K = 25, K* = 0; - - -, K = 100, K* = 0; - - , K = 100,
0
K* = 10. (a) For range of high forcing frequency, w; (b) for lower range of w (Noah & Hopkins
1980).
