请各位老大帮我看看这是怎么回事啊
浏览：164744 回答：5
大家帮我看看这个
/finish
/clear
/filname,ex2.1(2)
/units,cgs
/title,ex2.1.txt,simulation of over-determined beam with more nodes2
/REPLOT
/prep7
N,1,0,0
n,(1:351),(0:17.5:0.05),0,0
nplot
nplot,1
nlist
dsys,1
nlist
et,1,beam3
mp,ex,1,200e9
mp,nuxy,1,0.3
r,1,0.01354,216,0.6
E,(1:350),(2:351)
EPLOT
ELIST
finish
/solu
antype,static
outpr,basic,all
d,50,ux,0,,,,uy
d,172,uy,0
d,294,uy,0
sfbeam,(1:350),1,pres,148.57
f,50,fy,-215e3
f,294,fy,-215e3
solve
finish
/post1
prdisp
etable,imoment,smisc,6
etable,imoment,smisc,6
etable,jmoment,smisc,12
etable,ishear,smisc,2
etable,jshear,smisc,8
pretab
/title,shear force diagram
plls,ishear,jshear
算出的结果怎么不对啊,而且改变r,1,0.01354,216,0.6 里面的216的值结果竟然没有变化啊,这是怎么回事?
/finish
/clear
/filname,ex2.1(2)
/units,cgs
/title,ex2.1.txt,simulation of over-determined beam with more nodes2
/REPLOT
/prep7
N,1,0,0
n,(1:351),(0:17.5:0.05),0,0
nplot
nplot,1
nlist
dsys,1
nlist
et,1,beam3
mp,ex,1,200e9
mp,nuxy,1,0.3
r,1,0.01354,216,0.6
E,(1:350),(2:351)
EPLOT
ELIST
finish
/solu
antype,static
outpr,basic,all
d,50,ux,0,,,,uy
d,172,uy,0
d,294,uy,0
sfbeam,(1:350),1,pres,148.57
f,50,fy,-215e3
f,294,fy,-215e3
solve
finish
/post1
prdisp
etable,imoment,smisc,6
etable,imoment,smisc,6
etable,jmoment,smisc,12
etable,ishear,smisc,2
etable,jshear,smisc,8
pretab
/title,shear force diagram
plls,ishear,jshear
算出的结果怎么不对啊,而且改变r,1,0.01354,216,0.6 里面的216的值结果竟然没有变化啊,这是怎么回事?
还有一个问题，按照上面的计算我得的剪力结果只有不到500N，与我理论计算的结果（约30万N）相差太大，这是为什么呢？
按理说，在均布载荷148.57，及集中力215e3作用下的剪力应该很大才对啊，不可能那么小（500N）啊