做一个钢板剪力墙的滞回分析,其求解控制选项如下所示:/soluupcoord,hh !非线性分析antype,static !trans!timint,offnlgeom,on !大变形和大应变选项kbc,0nropt,auto,,on!AUTOTS,onLNSRCH,autoeqslv,sparse !选择求解器neqit,100 !定义不平衡迭代最大次数!ALPHAD,0.0462 !Defines the mass matrix multiplier for damping.
/solu
upcoord,hh !非线性分析
antype,static !trans
!timint,off
nlgeom,on !大变形和大应变选项
kbc,0
nropt,auto,,on
!AUTOTS,on
LNSRCH,auto
eqslv,sparse !选择求解器
neqit,100 !定义不平衡迭代最大次数
!ALPHAD,0.0462 !Defines the mass matrix multiplier for damping.
!BETAD,0.0071 !Defines the stiffness matrix multiplier for damping
cnvtol,f,,,,0.001 !定义收敛值
nsubst,200,1000,200
!arclen,on!,50,10
STABILIZE,constant,energy,2e-2,mintime
outres,all,all
outpr,all,all
RESCONTROL
*do,i,1,NT
TIME,i !*DT
d,node(0,h+sz,0),ux,5*(i+0.5*(1+(-1)**(i+1)))/2*(-1)**(i+1)
solve
*enddo
time,15
d,node(0,h+sz,0),ux,0
solve
得到的滞回曲线如下所示:
想问一下各位大侠,这个stabilize是干什么用的?我这样得出来的曲线是不是精度不够不能用啊?那变符号段怎么波动成那个样子?