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本算例为4层石墨环氧反对称角铺层方板[45/-45/45/-45],边长0.08m,厚度0.008m,加载热流于上表面中心区,面积 0.0004m*m,大小为100000W/m*m,材料主轴热导率K11=30W/mK,k22=k33=1.1,对流换热系数a=30W/m*mK.
- finish
- /clear
-
- /prep7
- et,1,shell131,,,1,8!热分析用4节点分层壳单元
- sectype,1,shell
- mp,kxx,1,30 !45度方向材料属性
- mp,kyy,1,1.1
- mp,kzz,1,1.1
- mp,c,1,1000
- mp,dens,1,1389.2
- mp,kxx,2,30 !-45度方向材料属性
- mp,kyy,2,1.1
- mp,kzz,2,1.1
- mp,c,2,1000
- mp,dens,2,1389.2
- secdata,0.001,1,45 !进行各个铺层厚度、材料、方向设定
- secdata,0.001,2,-45
- secdata,0.001,1,45
- secdata,0.001,2,-45
- secdata,0.001,1,45
- secdata,0.001,2,-45
- secdata,0.001,1,45
- secdata,0.001,2,-45
- n,1, !建模
- n,17,0.08
- fill,1,17
- ngen,17,17,1,17,1,,0.005
- e,1,2,19,18
- egen,16,1,1
- egen,16,17,1,16
- esel,s,,,136,137
- esel,a,,,120,121
- sfe,all,2,hflux,,1e5 !在顶面加载热流载荷
- esel,all
- finish
- !!!!!!!!!!!!!!!!!static
- /solu!稳态
- antype,static
- tref,20
- sfe,all,1,conv,1,30
- sfe,all,1,conv,2,20
- esel,u,,,136,137
- esel,u,,,120,121 !对未加载单元顶面、所有单元底面
- sfe,all,2,conv,1,30 !定义边界的空气对流换热
- sfe,all,2,conv,2,20
- esel,all
- outres,all,all
- solve
- /post1
- plnsol,tbot !分层显示各个层底温度分布
- plnsol,te2 !由底面到顶面
- plnsol,te3
- plnsol,te4
- plnsol,te5
- plnsol,te6
- plnsol,te7
- plnsol,te8
- plnsol,ttop
-
- path,ppp,9 !定义沿X方向半对称轴路径
- ppath,1,145
- ppath,2,146
- ppath,3,147
- ppath,4,148
- ppath,5,149
- ppath,6,150
- ppath,7,151
- ppath,8,152
- ppath,9,153
- pdef,pop,ttop !显示本路径顶面温度变化
- plpath,pop
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转自simwe |