$# LS-DYNA Keyword file created by LS-PREPOST 2.3(Beta) - 07Apr2008(17:23) $# Created on Mar-26-2009 (13:26:11) $# Units: Kgf, mm, second, Hz *KEYWORD *TITLE $# title Spring subjected to base acceleration $=============================================================================== $ please complete the keywords $------------------------------------------------------------------------------- *FREQUENCY_DOMAIN_RANDOM_VIBRATION $# mdmin mdmax fnmin fnmax restrt restrm 1 20 $# dampf lcdam lctyp dmpmas dmpstf dmptyp 0.01 $# vaflag method unit umlt vapsd varms napsd ncpsd 1 1 3 9810.0 $# ldtyp ipanelu ipanelv temper dsflag $# sid stype dof ldpsd ldvel ldflw ldspn cid 0 3 1000 *DATABASE_FREQUENCY_BINARY_D3PSD $# binary 1 $# fmin fmax nfreq fspace lcfreq 10. 100. 901 *DATABASE_FREQUENCY_BINARY_D3RMS $# binary 1 $=============================================================================== *CONTROL_IMPLICIT_EIGENVALUE $ $ For now, use min=-.1, norm=mass $# neig center lflag lftend rflag rhtend eigmth shfscl 2 0 $# isolid ibeam ishell itshell 0 0 0 0 1 *CONTROL_IMPLICIT_GENERAL $# imflag dt0 imform nsbs igs cnstn form zero_v 1 1.000000 *CONTROL_IMPLICIT_NONLINEAR $# nsolvr ilimit maxref dctol ectol not used lstol rssf 1 $# dnorm diverg istif nlprint 0 0 0 0 $# arcctl arcdir arclen arcmth arcdmp 0 0 0.000 1 2 *CONTROL_TERMINATION $# endtim endcyc dtmin endeng endmas 1.000000 *DATABASE_HISTORY_NODE_SET 1 *DATABASE_DEFORC $# dt binary lcur ioopt 0.001000 1 *DATABASE_NODOUT $# dt binary lcur ioopt dthf binhf 0.001000 1 *DATABASE_BINARY_D3PLOT $# dt lcdt beam npltc psetid 0.100000 $# ioopt 0 *PART $# title spring $# pid secid mid eosid hgid grav adpopt tmid 1 1 2 *SECTION_DISCRETE $# secid dro kd v0 cl fd 1 $# cdl tdl 0.000 0.000 *MAT_SPRING_ELASTIC $# mid k 2 6.4454 *PART $# title damper $# pid secid mid eosid hgid grav adpopt tmid 2 1 1 *MAT_DAMPER_VISCOUS $# mid dc 1 0.0005129 *PART $# title plate $# pid secid mid eosid hgid grav adpopt tmid 3 3 3 *SECTION_SHELL $# secid elform shrf nip propt qr/irid icomp setyp 3 2 1.000000 2 1 0 0 1 $# t1 t2 t3 t4 nloc marea idof edgset 5.000000 5.000000 5.000000 5.000000 *MAT_ELASTIC $# mid ro e pr da db not used 3 0.281793 2.908E+20 0.300000 *DEFINE_CURVE $# lcid sidr sfa sfo offa offo dattyp 1000 $# a1 o1 $ take unit as g^2/Hz 10.0000000 0.1 100.0000000 0.1 *SET_NODE_LIST $# sid da1 da2 da3 da4 1 $# nid1 nid2 nid3 nid4 nid5 nid6 nid7 nid8 1 2 *SET_SEGMENT $# sid da1 da2 da3 da4 1 $# n1 n2 n3 n4 a1 a2 a3 a4 1 3 4 5 3 1 11 10 1 12 13 5 1 12 16 11 *ELEMENT_SHELL $# eid pid n1 n2 n3 n4 n5 n6 n7 n8 1 3 1 3 4 5 4 3 3 1 11 10 5 3 1 12 13 5 6 3 1 12 16 11 *ELEMENT_DISCRETE $# eid pid n1 n2 vid s pf offset 1 1 1 2 0 1.0000000 2 2 1 2 0 1.0000000 *ELEMENT_MASS $# eid nid mass pid 1 2 0.000102 *NODE $# nid x y z tc rc 1 2 0.000 0 -1000.0000000 4 7 3 500.0000000 0 0 4 7 4 500.0000000 500.0000000 0 4 7 5 0.000 500.0000000 0 4 7 10 500.0000000 -500.0000000 0 4 7 11 0.000 -500.0000000 0 4 7 12 -500.0000000 0 0 4 7 13 -500.0000000 500.0000000 0 4 7 16 -500.0000000 -500.0000000 0 7 7 *END