HEAD EigenValues of Fixed Column. New Algorithms Usfos analysis 2010, Usfos AS ' ' ' KeyWord Value Eigenval Time 1.0 ! Perform eigenval at time = 1 Eigenval NumberOf 20 ! Compute 20 vectors Eigenval Algorithm Lanczos ! Use Lanczos solver Eigenval ModeScale 2 ! Scale modes by 2 for visualization ' ' ' End_Time Delta_T Dt_Res Dt_Pri Dynamic 1.1 0.050 0.1 0.1 ' ' ------------------------------------------------------------------------------ ' T i m e H i s t o r i e s ' ------------------------------------------------------------------------------ ' ' - Define Time Histories ' ' ID T1 T2 Fac Pow TimeHist 1 S_Curv 0.0 1.0 1.0 3 ! Gravity Buoyancy ' ' ID Dtime Factor Start_time ! Hydro Forces TimeHist 2 Switch 0.0 1.0 0.0 ' ' ' ' ------------------------------------------------------------------------------ ' M i s c P a r a m e t e r s ' ------------------------------------------------------------------------------ ' - Define Loads to be applied ' Ildcs Tim Hist LoadHist 1 1 ! Gravity Acc LoadHist 2 2 ! "Wet things" ' ' - Define "flat sea" ' ' Ildcs H Period Direction Phase Surf_Lev Depth nIni WaveData 2 Airy 0.0 4 0 0.0 -1.000 80 0 ' Rel_Velo ' Wave_Int 4 ' - Analysis parameters DampRatio 0.05 0.05 0.1 10 ' BeamType Riser All Wet_Element All ' ' ncnods CNODES 1 ' nodex idof dfact 2 3 1. ' ' ' ' ------------------------------------------------------------------------------ ' B u o y a n c y ' ------------------------------------------------------------------------------ ' ' ' - Switch ON buoyancy Buoyancy ' ' - Apply buoyancy according ' to a Time History ' Specify elements through ' material reference. ' Hist Typ MatID .... BuoyHist 1 Mat 1 ' ' ' ---------------------------- E O F --------------------------