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qjn1

新虫 (初入文坛)

[求助] 求助关于加载过程时间步及施加移动载荷问题

如题,小弟初学ANSYS,想实现一个随时间移动的热源,并施加一个随时间移动的对流条件,二者共同作用,对流条件移动的坐标限制条件如命令中所示,v是速度,lsize为单元网格长度,命令流如下
/solu
antype,trans
!solcontrol,on
!lnsrch,auto
!ncnv,0
neqit,1000
tunif,20
kbc,1
timint,on
autots,on

*do,k,1,max_time,1
*do,t,1e-6,tm,tinc
time,t
deltim,tinc,0.001,1,on
outres,all,all
tsres,erase
allsel
esel,s,type,,1
nsle,s
bf,all,hgen,%flux1%
allsel
solve

allsel
ekill,all
allsel
nsle,s
nsel,r,loc,z,0
nsel,r,loc,x,0,x_dist
nsel,r,loc,x,(k-1)*lsize,(k+1)*lsize
nsel,r,loc,y,0,sqrt(r**2-(x-(k-1)*lsize)**2)
ealive,all
sf,all,conv,5000
allsel
solve
*enddo
*enddo
已知热源部分命令能正常运行 没有错误,错误估计出现在后半部分程序中。运行时会出现present time is less than or equal to the previous time in a transient analysis(在一个瞬态分析中当前时间小于或等于前一个时间)以及unknown parameter name = x的错误提示,自己已尝试修改几天,依旧无果,希望高手们能给些提示,在此谢过!
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Derrick鬼

银虫 (小有名气)

楼主你好 ,这个问题您是咋解决的?求指导。我也一样的问题
出现present time is less than or equal to the previous time in a transient analysis
2楼2017-02-18 16:40:14
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