ANSYS函数

x

坐标值；同理

ny(i)

；

nz(i)

7. nsel(k)

：

是节点

在就是

1

，不在就是< /p>

0.

8. NDNEXT(N)

Next higher node number above N in selected set (or zero if none found).

9.

NELEM(ENUM,NPOS)

returns

the

node

number

in

position

NPOS

for

element

ENUM.

Node number at position 1,2,... or 20 of elementN, where npos is 1,2,...20.

10. UX(N), UY(N), UZ(N)

X, Y, or Z structural displacement or vector sum.

11. ROTX(N), ROTY(N), ROTZ(N)

X, Y

, or Z structural rotation or vector sum.

12. TEMP(N)

Temperature.

13. PRES(N)

Pressure.

14. VX(N), VY(N), VZ(N) X, Y

, or Z fluid velocity or vector sum.

15. ENKE(N)

Turbulent kinetic energy (FLOTRAN).

16. ENDS(N)

Turbulent energy dissipation (FLOTRAN).

17. CENTRX(N), CENTRY(N), and CENTRZ(N)

always retrieve the element centroid in global Cartesian coordinates, and are determined from the

selected nodes on the elements.

18. ELADJ(N,face)

Element number adjacent to face 1,2,...6.

。

Number assigned to the attribute Name, where Name =

LOG10(x)

：常用对数

log

10

?

x

?< /p>

x

MA

T, TYPE, REAL, ESYS, PSTA

T, LIVE attribute. A zero is returned if the element is unselected.

If Name = PSTAT (valid for p-elements only), a 1 is returned if the element.

19. ESEL(N)

：

Select status of element N

-1 = unselected, 0 = undefined.

20. ELNEXT(N)

Next higher element number above N in selected set (or zero if none found).

21. KSEL(N)

Select status of keypoint N

-1 = unselected, 0 = undefined, 1 = selected.

22. KPNEXT(N)

Next higher keypoint number above N in selected set (or zero if none found).

23. LSEL(N)

Select status of line N

-1=unselected, 0=undefined, 1=selected.

24. LSNEXT(N)

Next higher line number above N in the selected set (or zero if none found).

25. LX(n,lfrac)

return

the

X

coordinate

location

of

line

N

at

the

length

fraction

lfrac

(0.0

to

1.0).

同理，

L

Y(n,lfrac)

；

LZ(n,lfrac).

26

. LSX(L,LFRAC)

X slope of line L at length fraction LFRAC (0.0 to 1.0).

LSY(L,LFRAC)

Y slope of line L at length fraction LFRAC (0.0 to 1.0).

LSZ(L,LFRAC)

Z slope of line L at length fraction LFRAC (0.0 to 1.0).

27. ASEL(N)

Select status of area N

-1=unselected, 0=undefined, 1=selected.

28. VSEL(N)

Select status of volume N

-1=unselected, 0=undefined, 1=selected.

29. VLNEXT(N)

Next higher volume number above N in selected set (or zero if none found).

30.

距离函数

DISTND(N1,N2) Distance between nodes N1 and N2.

DISTKP(K1,K2) Distance between keypoints K1 and K2.

DISTEN(E,N) Distance between the centroid of element E and node N. Centroid is determined

from the selected nodes on the element.

31.

角度函数

(

缺省单位为弧度，单位变换用

*AFUN

命令

)

ANGLEN(N1,N2,N3)

Subtended angle between two lines (defined by three nodes where N1 is the vertex node). Default

is in radians.

ANGLEK(K1,K2,K3)

Subtended angle between two lines (defined by three keypoints where K1 is the vertex keypoint).

Default is in radians.

32.

最近实体函数

NNEAR(N) Selected node nearest node N.

KNEAR(K) Selected keypoint nearest keypoint K.

ENEARN(N)

Selected

element

nearest

node

N.

The

element

position

is

calculated

from

the

selected nodes.

33.

面积函数

AREAND(N1,N2,N3)

Area of the triangle with vertices at nodes N1, N2, and N3.

AREAKP(K1,K2,K3)

Area of the triangle with vertices at keypoints K1, K2, and K3.

ARNODE(N)

Area

at

node

N

apportioned

from

selected

elements

attached

to

node N.

For

2-D

planar

solids,

returns

edge

area

associated

with

the

node.

For

axisymmetric

solids,

returns

edge

surface

area

associated with the node. For 3-D volumetric solids, returns face area associated with the node.

34.

法向函数

NORMNX(N1,N2,N3)

X-direction cosine of the normal to the plane containing nodes N1, N2, and N3.

NORMNY(N1,N2,N3)

Y-direction cosine of the normal to the plane containing nodes N1, N2, and N3.

NORMNZ(N1,N2,N3)

Z-direction cosine of the normal to the plane containing nodes N1, N2, and N3.

NORMKX(K1,K2,K3)

X-direction cosine of the normal to the plane containing keypoints K1, K2, and K3.

NORMKY(K1,K2,K3)

Y-direction cosine of the normal to the plane containing keypoints K1, K2, and K3.

NORMKZ(K1,K2,K3)

Z-direction cosine of the normal to the plane containing keypoints K1, K2, and K3.

35.

相邻实体函数

ENEXTN(N,LOC)

Element connected to node N. LOC is the position in the resulting list when many elements share

the node. A zero is returned at the end of the list.

NELEM(E,NPOS)

Node number in position NPOS (1--20) of element E.

36.

面函数

ELADJ(E,FACE)

Element adjacent to a face (FACE) of element E. The face number is the same as the surface

load

key

number.

Only

elements

of

the

same

dimensionality

and

shape

are

considered.

A

-1

is

returned if more than one is adjacent.

NDFACE(E,FACE,LOC)

Node in position LOC of a face number FACE of element E. The face number is the same as the

surface load key number. LOC is the nodal position on the face (for an IJLK face, LOC=1 is at

node I, 2 is at node J, etc.)

NMFACE(E)

Face number of element E containing the selected nodes. The face number output is the surface

load key. If multiple load keys occur on a face (such as for line and area elements) the lowest load

key for that face is output.

ARFACE(E)

For

2-D

planar

solids

and

3-D

volumetric

solids,

returns

the

area

of

the

face

of

element

E

containing the selected nodes. For axisymmetric elements, the area is the full (360 degree) area.

函数加载及命令中附带的问题

?

问题

:< /p>

本想施加线性变化的荷载的却加成了

均布荷载

了！大家帮我看一下命令流，哪地

方出错了！

/PREP7

ELEM_L=0.25

ET,1,BEAM3

MP,EX,1,207E9

MP,PRXY,1,0.3

MP,DENS,1,7.8E3

R,1,0.03,0.25E-4,0.1

K,1

K,2,6

K,3,7

K,4,8

L,1,2

L,2,3

L,3,4

LATT,1,1,1,

LESIZE,ALL,ELEM_L

LMESH,ALL

D,1,ALL,0

D,26,UY,0

*DIM,XXHZ,TABLE,2,1,1

*SET,XXHZ(2,1,1),800

*SET,XXHZ(1,1,1),400

*SET,XXHZ(2,0,1),0

*SET,XXHZ(1,0,1),6

ALLSEL,ALL

LSEL,S,LINE,,1

ESLL,S

*GET,MAXN,ELEM,,NUM,MAX

*GET,MINN,ELEM,,NUM,MIN

*SET,KK,MINN

*DO,KK,MINN,MAXN

*IF,ESEL(KK),EQ,1,THEN

F1=XXHZ(NX(NELEM(KK,1)))

F2=XXHZ(NX(NELEM(KK,2)))

SFBEAM,kk,1,PRES,F1,F2