finish
a=1683 !需要施加简谐载荷的节点号
b=1713 !同上
!! harmonic analysis
/solu
ANTYPE,3
HROPT,full !完全法求解
HARFRQ,0.1,2, !频率从0.1到2
NSUBST,190, !分为190个载荷步
KBC,1 !载荷阶梯式变化
OUTRES,BASIC,ALL,
f,a,fy,-1000,1000
f,b,fy,-1000,1000
SOLVE
FINISH
/post26
!file,freq,rfrq !!!
nsol,2,a,u,y,uy1
nsol,3,b,u,y,uy2
plvar,a,b
finish