where 



and 



Mj^O) = £^ P S u|u|dS 



Mj(e,s) 



CmP 



TTD^ (' 



2 Dt ^^ 



TABLE J 



Summary of Maximum Wave Forces on 

 Several Platform Components 



Member 



Phase Angle of 

 Maximum Force , 



m 



Frp (kips) 

 max 



a 

 b 

 c 



70 



1° 

 1° 



25.1 

 160 

 12.3 



Note: Phase angles and maximum forces obtained by interpolation 

 from Figures 31, 32 and 33. 



Consider the total moment about the mudline on the outrigger (Member a). In this case 

 Sj = 0, and S^ - S^ = 0.5 h. To determine the drag moment, Mj){6), multiply the 

 dimensionless tabulated value for the drag moment, M'j){d), hsted at depth S^/h = 0.5 in 

 Table VH, by: 



Cj^pD(H/T)2h2 



'26,606 for M^ in ft-lbs 

 26.606 for Mq in ft-kips 



Similarly, multiply M}(0) listed at depth S„/h = 0.5 in Table VIII by: 



C^pTTD^ (H/T^)h' 

 M 



11,272 for Mi in ft-lbs 

 11.272 for Mj in ft-kips 



68 



