HEAD Usfos Wave Load Example 01 Progressive Collapse Analysis / JACKET model '--------------------------------------------------------------------- ' Define Wave & Current '--------------------------------------------------------------------- ' ' Ildcs H Period Direction Phase Surf_Lev Depth WAVEDATA 2 Stoke 25.0 16.0 45 0.0 0.0 100 ' ' Ildcs Speed Direction Surf_Lev Depth [Profile] CURRENT 2 2 45 0.0 100 0.0 1.0 -20.0 1.0 -100.0 0.0 -110.0 0.0 ' ' ---------------------------------------------------------------------- ' Separate Bouyancy from wave forces. ' Add Buoyancy to load case 1. (Do not write a loadfile) ' ---------------------------------------------------------------------- ' ' lCase Option BUOYANCY 1 noWrite ' ' ---------------------------------------------------------------------- ' Identify Worst Phase (Max Base Shear) and do not create a loadfile ' Step the wave with dT=1.0 sec (check whole period=16s). ' ---------------------------------------------------------------------- ' Criterion dT EndT Write MaxWave Baseshear 1.0 16.0 noWrite ' ' ---------------------------------------------------------------------- ' Scale the Wave load. This option is required when Force Unit is not N. ' (generated wave loads are always using Newton). ' In this demo case, scale by 1.3 : ' ---------------------------------------------------------------------- WavMxScl 1.3 ' ' ---------------------------------------------------------------------- ' Define Marine Growth using a Depth Profile (relative to MWL) ' ---------------------------------------------------------------------- ' ' Z Add_Thick M_GROWTH 0.0 0.07 -20.0 0.07 -50.0 0.03 -100.0 0.0 -110.0 0.0 ' ' ---------------------------------------------------------------------- ' Define Drag and Mass Coeffs using Depth Profile. ' ---------------------------------------------------------------------- ' ' Z Cd Hydro_Cd 10.0 0.65 2.1 0.65 2.0 1.05 -100.0 1.05 ' Z Cm Hydro_Cm 10.0 1.6 2.1 1.6 2.0 1.2 -100.0 1.2 ' ' ' ncnods CNODES 2 ' nodex idof dfact 214 1 0.71 214 2 0.71 ' ' ' ---------------------------------------------------------------------- ' Loadcombination 1 is gravity loads and static deck loads, ' Loadcombination 2 is Stoke Wave 45 deg diretion ' ---------------------------------------------------------------------- ' nloads npostp mxpstp mxpdis CUSFOS 10 15 1.00 0.05 ' lcomb lfact mxld nstep minstp 1 1.0 1.0 10 0.05 ! Dead + Buoyancy 2 0.5 3.0 50 0.01 ! Wave 2 0.1 6.0 50 0.01 ! Wave ' ' ' ---------------------------------------------------------------------- ' Apply automatic out of straightness. ' Use loads from Waves (lcase 2) ' ---------------------------------------------------------------------- ' Size Pat LoadCase cInidef 70 1 2 ' DeterOff ' ' ------------------------------- E O F ---------------------------