The connector was modeled as a simple supported beam carrying a 

 distributed load. This model was considered to be a valid representation 

 of actual loading configuration as existing oil booms have tension members 

 (cables, chains, etc.) built into the top and bottom of their structure 

 that can be considered to act as simple structural supports. The connector 

 loading model is shown in Figure A-2. For conservative design calculations, 

 the distributed load was converted to a point load located 12 inches 

 from the bottom of the 36-inch, Type II boom. This converted model is 

 shown in Figure A- 3. 



The transverse hydrodjmamic load on the connector is highest at 

 the center of a catenary. This load is computed assuming the load is 

 equal to that from the drag forces acting on a flat plate. The pressure 

 distribution on the submerged portion of the boom is of the general shape 

 shown in Figure A-1. The drag force per square foot of the connector due 

 to this pressure distribution is calculated using the formula 



2 

 where F = drag pressure (lb/ft ) 



C = drag coefficient 



3 



p = mass density of water (slugs/ft ) 



v = tow speed (ft/sec) 



2 

 The frontal area (A) of the connector assembly is 2.25 ft for the 



largest Type II boom. The transverse hydrodynamic load or the drag force, 



on the connector assembly, is therefore 



Fp A = 52 lb 



33 



