Unstable Motion of Free Spar Buoys in Waves 



TYPE 11 BUOY 



H v = 0.519r 



Real scale 



T v = 6. 



Frequency for real scale 

 '^j.-----.. l 1 - -J- 



~5.6 p.7 



FIGURE 33_ SPECTRAL DENSITY OF WAVES IN TANK N' 2 



o.s 



f.H 



(H,) 



S ss (f) m 2 /H z for real scale 



Measured 



TYPE 11 BUOY 

 I H v = 0.519 . 



Real scale 



T v = 6. 



Frequency for real scale 



FIGURE 34_SPECTRAL DENSITY OF RELATIVE MOTION IN TANK N - 2 



riHzi 



1069 



