ABAQUS Keywords Reference Manual  

*SUBSTRUCTURE PROPERTY
Translate, rotate, and/or reflect substructures.

This option is used to define properties for a substructure. It is required for all substructures in a model.

Product: ABAQUS/Standard  

Type: Model data

Level: This option is not supported in a model defined in terms of an assembly of part instances.

Reference:

Required parameter:

ELSET

Set this parameter equal to the name of the element set containing the substructures for which properties are being defined.

Optional parameter:

POSITION TOL

Set this parameter equal to the tolerance on the distance between usage level nodes and the corresponding substructure nodes. If this parameter is omitted, the default is a tolerance of 10–4 times the largest overall dimension within the substructure. If the parameter is given with a value of 0.0, the position of the retained nodes is not checked.

Data lines to translate a substructure: 

First (and only) line:

  1. Value of the translation to be applied in the global -direction.

  2. Value of the translation to be applied in the global -direction.

  3. Value of the translation to be applied in the global -direction.

Data lines to translate and/or rotate a substructure: 

First line:

  1. Value of the translation to be applied in the global -direction.

  2. Value of the translation to be applied in the global -direction.

  3. Value of the translation to be applied in the global -direction.

Enter values of zero to apply a pure rotation.

Second line:

  1. Global -coordinate of point on the axis of rotation (see Figure 18.45–1).

  2. Global -coordinate of point on the axis of rotation.

  3. Global -coordinate of point on the axis of rotation.

  4. Global -coordinate of point on the axis of rotation.

  5. Global -coordinate of point on the axis of rotation.

  6. Global -coordinate of point on the axis of rotation.

  7. Angle of rotation about the axis –, in degrees.

Data lines to translate and/or reflect a substructure: 

First line:

  1. Value of the translation to be applied in the global -direction.

  2. Value of the translation to be applied in the global -direction.

  3. Value of the translation to be applied in the global -direction.

Enter values of zero to apply a pure reflection.

Second line:

  1. Enter a blank line.

Third line:

  1. Global -coordinate of point in the plane of reflection (see Figure 18.45–2).

  2. Global -coordinate of point in the plane of reflection.

  3. Global -coordinate of point in the plane of reflection.

  4. Global -coordinate of point in the plane of reflection.

  5. Global -coordinate of point in the plane of reflection.

  6. Global -coordinate of point in the plane of reflection.

Fourth line:

  1. Global -coordinate of point in the plane of reflection.

  2. Global -coordinate of point in the plane of reflection.

  3. Global -coordinate of point in the plane of reflection.

Data lines to translate, rotate, and reflect a substructure: 

First line:

  1. Value of the translation to be applied in the global -direction.

  2. Value of the translation to be applied in the global -direction.

  3. Value of the translation to be applied in the global -direction.

Second line:

  1. Global -coordinate of point on the axis of rotation (see Figure 18.45–1).

  2. Global -coordinate of point on the axis of rotation.

  3. Global -coordinate of point on the axis of rotation.

  4. Global -coordinate of point on the axis of rotation.

  5. Global -coordinate of point on the axis of rotation.

  6. Global -coordinate of point on the axis of rotation.

  7. Angle of rotation about the axis –, in degrees.

Third line:

  1. Global -coordinate of point in the plane of reflection (see Figure 18.45–2).

  2. Global -coordinate of point in the plane of reflection.

  3. Global -coordinate of point in the plane of reflection.

  4. Global -coordinate of point in the plane of reflection.

  5. Global -coordinate of point in the plane of reflection.

  6. Global -coordinate of point in the plane of reflection.

Fourth line:

  1. Global -coordinate of point in the plane of reflection.

  2. Global -coordinate of point in the plane of reflection.

  3. Global -coordinate of point in the plane of reflection.

Figure 18.45–1 Substructure rotation.

Figure 18.45–2 Substructure reflection. Points , , and cannot be colinear.