毕业论文要分析输电塔线体系风振响应，现在用ansys做时程分析时，导线跨中节点位移时程曲线始终是一条斜直线，而不是波动的曲线，请高手指教。马上要交论文，心头好急。这里先谢谢。以下是我的求解命令流。附件是算出的导线跨中节点位移时程！
/config,nres,200000  
/config,fsplit,750  !文件分割
*create,ed  
*dim,wind,table,100,63
*tread,wind,25100sy,txt,,0
*end  
/input,ed  
*dim,np,array,63
np(1)=3,33,5,35,6,36,8,38,10,40
np(11)=12,42,13,43,14,44,15,45,16,46
np(21)=197,313,225,341,105,579,549,581,551,582
np(31)=552,584,554,586,556,588,558,589,559,590
np(41)=560,591,561,592,562,859,743,887,771,1215
np(51)=1091,1224,1229,1234,545,1243,1137,1088,1146,1151
np(61)=1156,542,1165
/solu  
antype,trans  
trnopt,full  
TIMINT,on !打开阻尼开关
nlgeom,on  
sstif,on  
autos,on  
outpr,all,all  
outres,all,all  
KBC,0  
DELTIM,0.1  
alpha,0.01  
beta,0.004
*do,t,1,100,1
  time,t*0.01
  kbc,0
  nsubst,1 !指定一个荷载子步  
  *do,jj,1,63,1 !63层节点循环  
   f,np(jj),fx,wind(t,jj)*1000  
  *enddo  
  acel,,9.8 !施加自重  
  allsel,all  
  solve  
*enddo  
finish