Problem Description
    title = "Benthic Design w/ 700-m Sphere in 1800 m water depth (benthic 1800w.cab)"   
    type = surface

Analysis Parameters
    static-outer-iterations = 1000
    static-iterations       = 5000
    static-relaxation       = 0.1
    static-tolerance        = 0.01
    static-outer-tolerance  = 0.01

    duration                = 150.0
    time-step               = 0.2
    dynamic-tolerance       = 1e-6
    dynamic-relaxation      = 1.0
    dynamic-iterations      = 20
    dynamic-integration     = temporal
    ramp-time               = 30.0

Environment
    rho            = 1025
    gravity        = 9.81
    x-current      = (0.0, 0.70) (50.0, 0.63) (100, 0.56) (150, 0.50) (200, 0.50)
                     (250, 0.45) (300, 0.25) (2400, 0.07) (3200, 0.16) (3700, 0.16)  

/*    x-current      = (0.0, 0.35) (50.0, 0.315) (100, 0.28) (150, 0.25) (200, 0.25)
                     (250, 0.225) (300, 0.125) (2400, 0.035) (3200, 0.08) (3700, 0.08)  
*/
/*   x-current      = (0.0, 0.05) (3700, 0.0) */   

    x-wind         = 12.0	/* use  15.0 12.0, 6.0, and 0.0 for wind speeds */
    depth          = 1800
    input-type     = random
/*
    forcing-method = velocity
    velocity-file  = "monterey25x.txt"
*/
    forcing-method = velocity  
    z-input         = (4.8, 16.0, 0.0)  
    bottom-stiffness = 0.0
    bottom-damping   = 0.0
    
Buoys
	buoy_LB type = cylinder 
		m = 3200 /* not including fuel! */ 
		Cdn = 1.0 
		Cdt = 1.0 
		Cdw = 1.5 
		Sw = 6 + 0.2 
		d = 3.5 
		h = 1.4

   	float    type = sphere
                m = 65
                d = 1.22
                Cdn = 1.0


Anchors
   clump        color = red

Connectors
   coupling     m = 13.35
		  wet = 113.4
		  Cdn = 0.001
		  d = 0.001

   shackle      d = 0.375*0.0254
                wet = 8.0
                Cdn = 0.1
                m = 1.0

   ssf_1        d = 1.422
                m = 724.3
                wet = -8010
                Cdn = 0.8

   ssf_2        d = 1.605*((2300/2600)^(1/3))
                m = 1041.*(2300/2600)
                wet = -4.45*2300
                Cdn = 0.8

   football     d = 0.5657
                m = 35.7
		  am = 28.6
                wet = -272
                Cdn = 1.0
                Cdt = 0.2

   football2     d = 0.5657*(.5^(1/3))
                m = 35.7*.5
		  am = 28.6*.5
                wet = -272*.5
                Cdn = 1.0
                Cdt = 0.2




Materials       
   chain_1_2     EA = 5.5e7           EI = 0.01        GJ = 0.1
                 m = 4.5             am = 0.584      wet = 38.1
                 d = 0.0265         Cdt = 0.01       Cdn = 0.55

   vectran       EA = 5.0e6              EI = 0.14          GJ = 50   
                 m = .477              am = .426         wet = 0.5   
                 d = 0.023          Cdt = 0.01         Cdn = 2.0   

   EM_cable     EA = 1.0e7              EI = 0.0437          GJ = 0.01   
                 m = 1.042              am = 0.24         wet = 8.145   
                 d = 0.0173             Cdt = 0.01         Cdn = 1.5   

   snubber      EA = 3.13e4          EI = 1000        GJ = 500
                 m = 17.00            am = 14.33        wet = 21.96
                 d = 0.1334            Cdt = 0.01       Cdn = 1.5
			T = 1550*(exp(10.5*e)-1)
			Te = 16275*exp(10.5*e)
			Tee = 1.7089e5*exp(10.5*e)
 
   VMCM	EA = 5.0e7	EI = 1000.0		GJ = 1000.0
		 m = 39.1 				wet = 203.86
		 d = 0.30 	Cdt = 0.01 		Cdn = 1.0
				Cmt = 1.2  		Cmn = 1.5


Layout
   terminal = {
       anchor = clump
   }
   segment = {
       length = 5.0
       material = chain_1_2
       nodes = (5, 1.0)
   }
   segment = {
       length = 30
       material = vectran
       nodes = (6, 1.0)
   }
   segment = {            
       length = 2.07
       material = VMCM
       nodes = (2, 1.0)
   }
   segment = {             
       length = 30
       material = vectran
       attachments = football2 : [1, 1, 4]
       nodes = (31, 1.0)
   }
   segment = {             /* this is the synthetic EM cable with 3 footballs per 100 m */
       length = 1030
       material = vectran
       nodes = (104, 1.0)
   }
   segment = {                          
       length = 3
       material = chain_1_2
       nodes = (5, 1.0)
   }
   connector = ssf_2
   segment = {                          /* 3 m of potted chain above SSF */
       length = 3
       material = chain_1_2
       nodes = (5, 1.0)
   }
   segment = {
       length = 900
       material =  EM_cable
       nodes = (91, 1.0)
	attachments = football : [2, 2, 90]
   }
   segment = {
       length = 600
       material = EM_cable
       nodes = (61, 1.0)
   }
   connector = coupling
   segment = {
      length = 30      
      material = snubber
      nodes = (7, 1.0)
   } 
   terminal = {
       buoy = buoy_LB
   }

End