*NODE RESPONSE

Define nodal responses for design sensitivity analysis.

This option is used in a direct design sensitivity analysis to write nodal response sensitivities to the output database. It is also used in an adjoint design sensitivity analysis to write a nodal response and its corresponding sensitivities with respect to the appropriate design variables to the output database. It must be used in conjunction with the DESIGN RESPONSE option.

This page discusses:

See Also
*DESIGN RESPONSE
In Other Guides
Direct Design Sensitivity Analysis
Adjoint Design Sensitivity Analysis

ProductsAbaqus/Design

TypeHistory data

LevelStep

Optional parameters

NSET

Set this parameter equal to the name of the node set for which the nodal design response value and its sensitivity output are calculated.

ORIENTATION

This parameter is meaningful only in an adjoint design sensitivity analysis.

Set this parameter equal to the name of an orientation definition to be used to define a local coordinate system for the node response.

OPERATOR

This parameter is meaningful only in an adjoint design sensitivity analysis.

Set OPERATOR=MAX to indicate that the maximum value of the design response across the node set is calculated.

Set OPERATOR=MIN to indicate that the minimum value of the design response across the node set is calculated.

Set OPERATOR=SUB to indicate that the difference between the maximum and the minimum values of the design response across the node set is calculated.

Set OPERATOR=AVE to calculate the average value of the design response over all the nodes in the node set.

Set OPERATOR=SUM (default) to calculate the sum of the design response over all the nodes in the node set.

Data lines to request nodal response value and sensitivity output

First line (only line in an adjoint design sensitivity analysis)

  1. Specify the identifying keys for the responses whose values and sensitivities are to be written to the output database. Only one response key can be specified in an adjoint design sensitivity analysis. The valid keys are listed in Direct Design Sensitivity Analysis and Adjoint Design Sensitivity Analysis.

In a direct design sensitivity analysis, repeat this data line as often as necessary to define the nodal responses whose values and sensitivities are to be written to the output database.