Block Format Keyword
/BCS - Boundary Conditions
Description
Defines boundary conditions on node groups for translational and rotational motion.
Format
(1)
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(2)
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(3)
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(4)
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(5)
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(6)
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(7)
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(8)
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(9)
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(10)
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/BCS/bcs_ID
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bcs_title
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Trarot
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skew_ID
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grnd_ID
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Field
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Contents
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bcs_ID
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Boundary conditions block identifier
(Integer, maximum 10 digits)
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bcs_title
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Boundary conditions block title
(Character, maximum 100 characters)
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Trarot
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Codes for translation and rotation
(6 Booleans)
= 0: free DOF
= 1: fixed DOF
Example: 101 111 means the x and z translations, as well as all rotations are fixed; the y translation is free.
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skew_ID
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Skew identifier
If not zero, the boundary conditions are applied with respect to this local skew.
(Integer)
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grnd_ID
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Node group to which boundary conditions are applied
(Integer)
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(1)-1
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(1)-2
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(1)-3
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(1)-4
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(1)-5
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(1)-6
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(1)-7
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(1)-8
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(1)-9
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(1)-10
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TX
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TY
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TZ
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X
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Y
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Z
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Field
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Contents
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TX
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Code for translation TX
=0: free DOF
=1: fixed DOF
(Boolean)
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TY
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Code for translation TY
=0: free DOF
=1: fixed DOF
(Boolean)
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TZ
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Code for translation TZ
=0: free DOF
=1: fixed DOF
(Boolean)
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X
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Code for rotation X
=0: free DOF
=1: fixed DOF
(Boolean)
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Y
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Code for rotation Y
=0: free DOF
=1: fixed DOF
(Boolean)
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Z
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Code for rotation Z
=0: free DOF
=1: fixed DOF
(Boolean)
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1. | The grnd_ID input is obligatory. The boundary conditions will be applied only to nodes that belong to a node group. |
2. | Input format details for the Trarot field are shown above. The six individual codes (one per direction) must be right justified in the ten character fields used by the variable Trarot. |
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See Also:
Implicit Features and Compatibility Information
Skew and Frame (/SKEW & /FRAME)
Example 2 - Snap-through Roof
Example 5 - Beam Frame
Example 6 - Fuel Tank
Example 8 - Hopkinson Bar
Example 11 - Tensile Test
Example 13 - Shock Tube
Example 15 - Gears
Example 16 - Dummy Positioning
Example 17 - Box Beam
Example 18 - Square Plate Torsion
Example 20 - Cube
Example 23 - Brake
Example 24 - Laminating