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Subsections


Example Model HE8CP

This example illustrates the use of coupled degrees of freedom between a point and a surface. One face of a cube is constrained while the opposite face is connected to a dummy mass to which the load is applied.





  
Figure 9.2: Example Coupled Degree of Freedom
\begin{figure}
\centerline{
\psfig {figure=ex2.ps,width=5.0in}
}\end{figure}

FEMGEN Commands for Model HE8CP

 PROPERTY FE-PROG ANSYS
 GEOM POINT P1        0.000000      0.000000      0.000000    
 GEOM POINT P2         100.000      0.000000      0.000000    
 GEOM POINT P3         100.000       100.000      0.000000    
 GEOM POINT P4        0.000000       100.000      0.000000    
 GEOM POINT P5        0.000000      0.000000       100.000    
 GEOM POINT P6         100.000      0.000000       100.000    
 GEOM POINT P7         100.000       100.000       100.000    
 GEOM POINT P8        0.000000       100.000       100.000    
 GEOM POINT P9         50.0000       50.0000       110.000    
 CONSTRUCT TRANS TRA TR1        0.00000       0.00000        100.00    
 PROP MAT MAT STEM 0.21000E+06  0.29000      0.78600E-05  0.00000     0.    
 PROP PHY GEN MASS 1. 1. 1. 1. 1. 1.
 GEOM LINE STR L1       P1       P2            3
 GEOM LINE STR L2       P2       P3            3
 GEOM LINE STR L3       P3       P4            3
 GEOM LINE STR L4       P4       P1            3
 GEOM LINE STR L5       P5       P6            3
 GEOM LINE STR L6       P6       P7            3
 GEOM LINE STR L7       P7       P8            3
 GEOM LINE STR L8       P8       P5            3
 GEOM LINE STR L9       P1       P5            3
 GEOM LINE STR L10      P2       P6            3
 GEOM LINE STR L11      P3       P7            3
 GEOM LINE STR L12      P4       P8            3
 GEOM SURF 4SID S1       L1       L2       L3       L4      
 GEOM SURF 4SID S2       L5       L6       L7       L8      
 GEOM SURF 4SID S3       L9       L1       L10      L5      
 GEOM SURF 4SID S4       L10      L2       L11      L6      
 GEOM SURF 4SID S5       L11      L3       L12      L7      
 GEOM SURF 4SID S6       L12      L4       L9       L8      
 GEOM BODY 6SUR B1       S1       S2       S3       S4       S5       S6       
 MESHING TYPE P9       P-EL     1
 MESHING TYPE B1       HE8      1
 PROP ATTACH B1       STEM          
 PROP ATTACH P9       MASS
 PROP BOUNDARY GENERAL CO1       P9             3 S2              
 PROP BOUNDARY CONSTRAINT CO2      S1              3
 PROP BOUNDARY CONSTRAINT CO3      P1            123
 PROP BOUNDARY CONSTRAINT CO4      P2              2
 PROP BOUNDARY CONSTRAINT CO5      P9             12
 PROP LOAD FORCE    LO1         1 P9   1.00000E+06     3  
 CONSTRUCT COORDSYS GLOBAL
 MESHING GENERATE
 UTILITY WRITE ANSYS he8cp.ans
 YES

ANSYS Input Deck for Model HE8CP

    
/BATCH
C***************************************************
C*** ANSYS INPUT DECK                              *
C*** CREATED BY FEMGV VERSION 4.02                 *
C*** TRANSLATED BY FEMGEN-ANSYS VERSION 3.000      *
C*** FILE CREATED: DATE 15/09/95 TIME 16:17:32     *
C***************************************************
C***
C***************************************************
C*** MESSAGE LOGGING IS ON                         *
C*** EXTERNAL MATERIAL DIRECTORY NOT USED          *
C*** EXTERNAL PHYSICAL PROPERTY DIRECTORY NOT USED *
C***************************************************
C***
C*** JOB CONTROL
C***
/FILNAM,he8cp   
/PREP7
/TITLE,                    
ANTYPE,STATIC
C***
C*** ELEMENT TYPE CARDS ... 
C***
ET,       1,MASS21  , 0, 0, 0, 0, 0, 0
ET,       2,SOLID45 , 0, 0, 0, 0, 0, 0
C***
C*** PHYSICAL PROPERTY CARDS ...
C***
C*** NAME= MASS    
R,     1,  1.000    ,  1.000    ,  1.000    ,  1.000    ,  1.000    ,  1.000    
C***
C*** MATERIAL CARDS ...
C***
C*** NAME=STEM    
MP,  EX,   1,  210000.0    
MP,NUXY,   1, 0.2900000    
MP,DENS,   1, 0.7860001E-05
MP,ALPX,   1, 0.0000000    
C***
C*** NODE CARDS ...
C***
N,     1, 0.0000000    , 0.0000000    , 0.0000000    
N,     2,  33.33334    , 0.0000000    , 0.0000000    
N,     3,  66.66667    , 0.0000000    , 0.0000000    
N,     4,  100.0000    , 0.0000000    , 0.0000000    
N,     5, 0.0000000    ,  33.33333    , 0.0000000    
N,     6,  33.33334    ,  33.33334    , 0.0000000    
N,     7,  66.66667    ,  33.33334    , 0.0000000    
N,     8,  100.0000    ,  33.33334    , 0.0000000    
N,     9, 0.0000000    ,  66.66666    , 0.0000000    
N,    10,  33.33334    ,  66.66667    , 0.0000000    
N,    11,  66.66667    ,  66.66667    , 0.0000000    
N,    12,  100.0000    ,  66.66667    , 0.0000000    
N,    13, 0.0000000    ,  100.0000    , 0.0000000    
N,    14,  33.33333    ,  100.0000    , 0.0000000    
N,    15,  66.66666    ,  100.0000    , 0.0000000    
N,    16,  100.0000    ,  100.0000    , 0.0000000    
N,    17, 0.0000000    , 0.0000000    ,  100.0000    
N,    18,  33.33334    , 0.0000000    ,  100.0000    
N,    19,  66.66667    , 0.0000000    ,  100.0000    
N,    20,  100.0000    , 0.0000000    ,  100.0000    
N,    21, 0.0000000    ,  33.33333    ,  100.0000    
N,    22,  33.33334    ,  33.33334    ,  100.0000    
N,    23,  66.66667    ,  33.33334    ,  100.0000    
N,    24,  100.0000    ,  33.33334    ,  100.0000    
N,    25, 0.0000000    ,  66.66666    ,  100.0000    
N,    26,  33.33334    ,  66.66667    ,  100.0000    
N,    27,  66.66667    ,  66.66667    ,  100.0000    
N,    28,  100.0000    ,  66.66667    ,  100.0000    
N,    29, 0.0000000    ,  100.0000    ,  100.0000    
N,    30,  33.33333    ,  100.0000    ,  100.0000    
N,    31,  66.66666    ,  100.0000    ,  100.0000    
N,    32,  100.0000    ,  100.0000    ,  100.0000    
N,    33, 0.0000000    , 0.0000000    ,  66.66667    
N,    34, 0.0000000    , 0.0000000    ,  33.33334    
N,    35,  33.33334    , 0.0000000    ,  66.66666    
N,    36,  33.33334    , 0.0000000    ,  33.33333    
N,    37,  66.66667    , 0.0000000    ,  66.66666    
N,    38,  66.66667    , 0.0000000    ,  33.33333    
N,    39,  100.0000    , 0.0000000    ,  66.66667    
N,    40,  100.0000    , 0.0000000    ,  33.33334    
N,    41,  100.0000    ,  33.33334    ,  66.66666    
N,    42,  100.0000    ,  33.33334    ,  33.33333    
N,    43,  100.0000    ,  66.66667    ,  66.66666    
N,    44,  100.0000    ,  66.66667    ,  33.33333    
N,    45,  100.0000    ,  100.0000    ,  66.66667    
N,    46,  100.0000    ,  100.0000    ,  33.33334    
N,    47,  66.66666    ,  100.0000    ,  66.66666    
N,    48,  66.66666    ,  100.0000    ,  33.33333    
N,    49,  33.33332    ,  100.0000    ,  66.66666    
N,    50,  33.33332    ,  100.0000    ,  33.33333    
N,    51, 0.0000000    ,  100.0000    ,  66.66667    
N,    52, 0.0000000    ,  100.0000    ,  33.33334    
N,    53, 0.0000000    ,  66.66666    ,  66.66666    
N,    54, 0.0000000    ,  66.66666    ,  33.33333    
N,    55, 0.0000000    ,  33.33332    ,  66.66666    
N,    56, 0.0000000    ,  33.33332    ,  33.33333    
N,    57,  33.33334    ,  33.33334    ,  33.33332    
N,    58,  66.66668    ,  33.33334    ,  33.33332    
N,    59,  33.33333    ,  66.66666    ,  33.33333    
N,    60,  66.66668    ,  66.66667    ,  33.33333    
N,    61,  33.33334    ,  33.33334    ,  66.66665    
N,    62,  66.66668    ,  33.33334    ,  66.66665    
N,    63,  33.33333    ,  66.66666    ,  66.66666    
N,    64,  66.66667    ,  66.66667    ,  66.66666    
N,    65,  50.00000    ,  50.00000    ,  110.0000    
C***
C*** ELEMENT CARDS ... 
C***
C*** MAT= NONE    ,   ELEMENT TYPE= MASS21  ,   PROPERTY= MASS    
 TYPE,  1
 REAL,  1
EN,       28,      65
C*** MAT= STEM    ,   ELEMENT TYPE= SOLID45 ,   PROPERTY= NONE    
 MAT,  1
 TYPE,  2
EN,        1,       1,     2,     6,     5,    34,    36,    57,    56
EN,        2,       2,     3,     7,     6,    36,    38,    58,    57
EN,        3,       3,     4,     8,     7,    38,    40,    42,    58
EN,        4,       5,     6,    10,     9,    56,    57,    59,    54
EN,        5,       6,     7,    11,    10,    57,    58,    60,    59
EN,        6,       7,     8,    12,    11,    58,    42,    44,    60
EN,        7,       9,    10,    14,    13,    54,    59,    50,    52
EN,        8,      10,    11,    15,    14,    59,    60,    48,    50
EN,        9,      11,    12,    16,    15,    60,    44,    46,    48
EN,       10,      34,    36,    57,    56,    33,    35,    61,    55
EN,       11,      36,    38,    58,    57,    35,    37,    62,    61
EN,       12,      38,    40,    42,    58,    37,    39,    41,    62
EN,       13,      56,    57,    59,    54,    55,    61,    63,    53
EN,       14,      57,    58,    60,    59,    61,    62,    64,    63
EN,       15,      58,    42,    44,    60,    62,    41,    43,    64
EN,       16,      54,    59,    50,    52,    53,    63,    49,    51
EN,       17,      59,    60,    48,    50,    63,    64,    47,    49
EN,       18,      60,    44,    46,    48,    64,    43,    45,    47
EN,       19,      33,    35,    61,    55,    17,    18,    22,    21
EN,       20,      35,    37,    62,    61,    18,    19,    23,    22
EN,       21,      37,    39,    41,    62,    19,    20,    24,    23
EN,       22,      55,    61,    63,    53,    21,    22,    26,    25
EN,       23,      61,    62,    64,    63,    22,    23,    27,    26
EN,       24,      62,    41,    43,    64,    23,    24,    28,    27
EN,       25,      53,    63,    49,    51,    25,    26,    30,    29
EN,       26,      63,    64,    47,    49,    26,    27,    31,    30
EN,       27,      64,    43,    45,    47,    27,    28,    32,    31
C***
C*** SINGLE POINT CONSTRAINT CARDS ... 
C***
D,     1,UX  ,,,,,UY  ,UZ  
D,     2,UZ  ,,,,,
D,     3,UZ  ,,,,,
D,     4,UY  ,,,,,UZ  
D,     5,UZ  ,,,,,
D,     6,UZ  ,,,,,
D,     7,UZ  ,,,,,
D,     8,UZ  ,,,,,
D,     9,UZ  ,,,,,
D,    10,UZ  ,,,,,
D,    11,UZ  ,,,,,
D,    12,UZ  ,,,,,
D,    13,UZ  ,,,,,
D,    14,UZ  ,,,,,
D,    15,UZ  ,,,,,
D,    16,UZ  ,,,,,
D,    65,UX  ,,,,,UY  
C***
C*** COUPLED DEGREES OF FREEDOM ... 
C***
NSEL,S,NODE,,    65
NSEL,A,NODE,,    17
NSEL,A,NODE,,    18
NSEL,A,NODE,,    19
NSEL,A,NODE,,    20
NSEL,A,NODE,,    21
NSEL,A,NODE,,    22
NSEL,A,NODE,,    23
NSEL,A,NODE,,    24
NSEL,A,NODE,,    25
NSEL,A,NODE,,    26
NSEL,A,NODE,,    27
NSEL,A,NODE,,    28
NSEL,A,NODE,,    29
NSEL,A,NODE,,    30
NSEL,A,NODE,,    31
NSEL,A,NODE,,    32
CP,NEXT,UZ   ,ALL
NSEL,ALL
FINISH
/SOLUTION
C******************
C*** LOAD CASE    1
C******************
C***
C*** LOAD CARDS ... 
C***
C*** LO1        FORCE
F,      65,FZ,  1000000.    
C***
C*** RESULTS OUTPUT CONTROL 
C***
OUTPR,NSOL,1
OUTPR,ESOL,1
OUTRES,NSOL,1
OUTRES,STRS,1
OUTRES,EPEL,1
SOLVE
FINISH
/EXIT
C*** FEMGEN-ANSYS TRANSLATION COMPLETED WITH ...
C*** INFORMATION MESSAGES: 0
C*** WARNING     MESSAGES: 0
C*** ERROR       MESSAGES: 0



Femsys Limited
8/18/1999