The fact that the cable has buckled means that the curve u - u must lie 



o s 



above the curve u. for some time. Of course, after some time of downward 

 motion, the vessel will move upwards, as indicated by the dashed line. The 

 difference between u - u and u is a measure of the degree of buckling, 

 and can be used in some way to determine whether the cable will form kinks. 

 At the time corresponding to point A (or at some previous time, if the cable 

 has formed kinks), the cable will be again under tension. The failure of the 

 cable by kinks should, perhaps, be investigated. 



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S-7001-0307 



