Figure 3.9 The measured vibration frequencies of a Double-Armored Steel cable in water as a function 

 of the tension. 



Figure 3.10 Strumming displacements and frequencies of marine cables in the fundamental mode. 



Figure 3.11 Strumming displacement amplitudes for cables with attached hydrophone housings 



Figure 3.12 Layout of the Castine Bay cable strumming test set-up. 



Figure 3.13 Sample displacement amplitude signal traces in the resonant and non-resonant lock-on re- 

 gimes. 



Figure 3.14 Measured resonant frequencies of cable strumming in the the ocean plotted against the ti- 

 dal current speed. 



Figure 3.15 Measured resonant frequencies of cable strumming in the ocean plotted against the tidal 

 current speed. 



Figure 3.16 Measured resonant frequencies of cable strumming in the ocean plotted against the tidal 

 current speed. 



Figure 3.17 Measured resonant cable strumming displacements as a function of the reduced velocity 



K. 



Figure 3.18 A root-mean-square acceleration spectrum of the cable strumming response measured dur- 

 ing the Fishbite experiments. 



Figure 3.19 A schematic drawing of the SEACON II experimental mooring. 



Figure 3.20 Measured drag coefficients for the SEACON II cable. 



Figure 3.21 A sketch of the Bermuda Test Span experimental arrangement. 



