好,那我就提一个具体问题:
一根beam,长200um,宽2um,厚2um, 两端温度为0,在梁上施加uniform Q(t):
Q(t)=1e12*sin(omega*t), 求在omega=100,200,300Hz时 beam上各点温度变化的amplitude和相对与Q(t)的相位delay. 我已经解出了analytical solution,可以和ANSYS结果做比较。
我贴出了模型部分, 但不知道如何加载Q(t)和求解。 谢谢帮助。。。
FINISH ! Make sure we are at BEGIN level
/Clear
/PREP7
um=1e-6
Length=20*um !Length of the block in z direction
Width=2*um
Thickness=2*um
Size=0.5*um !Mesh size
T0=0
Den=3900
Cp=450
k=100
UIMP,1,DENS, , ,Den, !Define density of material
UIMP,1,KXX,KYY,KZZ,k,k,k, !Define thermal conductivity of material
UIMP,1,C, , ,Cp, !Define heat capacity of material
ET,1,SOLID70
BLC4,0,0,Width,Length,Thickness
aesize,all,Size,
TYPE,1
MAT,1
mshkey,1
mshape,0,3d
vmesh,ALL
/solu
tunif,T0 !Ambient temperature
TREF,T0
asel,s,LOC,y,0,0
asel,a,LOC,y,Length,Length
DA, ALL, TEMP, T0
asel,all
!volume num =1 , 如何加载Q(t)=1e12*sin(omega*t)
!加载热源之后.
/SOLU
ANTYPE,HARMIC ! HARMONIC ANALYSIS
hropt,full
harfrq,100,300
kbc,1
nsubst,3
OUTPR,,NONE
OUTRES,,1
allsel
solve
FINISH |