General Commands

• Sensitivity_Command_Manual
  • General Commands
    • reliability
    • parameter
    • addToParameter
    • updateParameter
    • sensitivityIntegrator
    • sensitivityAlgorithm
    • recorder
  • Material Commands
    • uniaxialMaterial
    • nDmaterial
  • Section Commands
    • Fiber
    • Elastic
    • Aggregator
  • Element Commands
    • dispBeamColumnWithSensitivity
    • quadWithSensitivity
    • bbarBrickWithSensitivity
  • Constraint Commands
    • Transformation

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reliability Command

This command creates the reliability domain in which the sensitivity, reliability and optimization components are kept. This

reliability domain is parallel to the finite element (FE) domain in OpenSees. Currently, the commands for stand-alone sensitivity : analysis (e.g., sensitivityIntegrator, sensitivityAlgorithm) are set in the reliability domain only and, thus, the ‘reliability’

reliability

parameter Command

In DDM-based FE response sensitivity analysis, the sensitivity parameters can be material,

geometry or discrete loading parameters. Each parameter should be defined as:

parameter $tag <specific object arguments>

addToParameter Command

In case that more objects (e.g., element, section) are mapped to an existing parameter, the following command can be used to

relate these additional objects to the specific parameter:

addToParameter $tag <specific object arguments>

updateParameter Command

Once the parameters in FE model are defined, their value can be updated:

updateParameter $tag $newValue>

sensitivityIntegrator Command

For static analysis, the only option currently available is:

sensitivityIntegrator -static>

which must be defined before the ‘analysis’ command.

sensitivityIntegrator -static>