The ConnDisplacementBC object stores the data for a connector displacement/rotation boundary condition.
The ConnDisplacementBC object is derived from the BoundaryCondition object.
import load mdb.models[name].boundaryConditions[name]
This method creates a ConnDisplacementBC object on a wire region. Alternatively, the boundary condition may also be applied to a wire set referenced from an assembled fastener template model.
mdb.models[name].ConnDisplacementBC
Required arguments
A String specifying the boundary condition repository key.
A String specifying the name of the step in which the boundary condition is created.
Optional arguments
The wire region to which the boundary condition is applied. This argument is not valid when fastenerName and fastenerSetName are specified.
A String specifying the name of the assembled fastener to which the boundary condition will be applied. This argument is not valid when region is specified. When this argument is specified, fastenerSetName must also be specified. The default value is an empty string.
A String specifying the assembled fastener template model set to which the boundary condition will be applied. This argument is not valid when region is specified. When this argument is specified, fastenerName must also be specified. The default value is an empty string.
A Float, a Complex, or a SymbolicConstant specifying the displacement component in the connector's local 1-direction. Possible values for the SymbolicConstant are UNSET and SET. The default value is UNSET.
Note: Although u1, u2, u3, ur1, ur2, and ur3 are optional arguments, at least one of them must be specified.
A Float, a Complex, or a SymbolicConstant specifying the displacement component in the connector's local 2-direction. Possible values for the SymbolicConstant are UNSET and SET. The default value is UNSET.
A Float, a Complex, or a SymbolicConstant specifying the displacement component in the connector's local 3-direction. Possible values for the SymbolicConstant are UNSET and SET. The default value is UNSET.
A Float, a Complex, or a SymbolicConstant specifying the rotational component in the connector's local 4-direction. Possible values for the SymbolicConstant are UNSET and SET. The default value is UNSET.
A Float, a Complex, or a SymbolicConstant specifying the rotational component in the connector's local 5-direction. Possible values for the SymbolicConstant are UNSET and SET. The default value is UNSET.
A Float, a Complex, or a SymbolicConstant specifying the rotational component in the connector's local 6-direction. Possible values for the SymbolicConstant are UNSET and SET. The default value is UNSET.
A Boolean specifying whether the boundary condition should remain fixed at the current values at the start of the step. The default value is OFF.
A String or the SymbolicConstant UNSET specifying the name of the amplitude reference. UNSET should be used if the boundary condition has no amplitude reference. The default value is UNSET. You should provide the amplitude argument only if it is valid for the specified step.
A SymbolicConstant specifying how the boundary condition is distributed spatially. Possible values are UNIFORM and USER_DEFINED. The default value is UNIFORM.
A SymbolicConstant specifying how the boundary condition is defined in a *BUCKLE analysis. Possible values are NOT_APPLICABLE, STRESS_PERTURBATION, BUCKLING_MODES, and PERTURBATION_AND_BUCKLING. The default value is NOT_APPLICABLE.
Return value
A ConnDisplacementBC object.
Exceptions
This method modifies the data for an existing ConnDisplacementBC object in the step where it is created.
Required arguments
Optional arguments
The optional arguments to setValues are the same as the arguments to the ConnDisplacementBC method, except for the name and createStepName arguments.
Return value
Exceptions
This method modifies the propagating data for an existing ConnDisplacementBC object in the specified step.
Required argument
A String specifying the name of the step in which the boundary condition is modified.
Optional arguments
A Float, a Complex, or a SymbolicConstant specifying the displacement component in the connector's local 1-direction. Possible values for the SymbolicConstant are SET, UNCHANGED, and FREED.
A Float, a Complex, or a SymbolicConstant specifying the displacement component in the connector's local 2-direction. Possible values for the SymbolicConstant are SET, UNCHANGED, and FREED.
A Float, a Complex, or a SymbolicConstant specifying the displacement component in the connector's local 3-direction. Possible values for the SymbolicConstant are SET, UNCHANGED, and FREED.
A Float, a Complex, or a SymbolicConstant specifying the rotational component in the connector's local 4-direction. Possible values for the SymbolicConstant are SET, UNCHANGED, and FREED.
A Float, a Complex, or a SymbolicConstant specifying the rotational component in the connector's local 5-direction. Possible values for the SymbolicConstant are SET, UNCHANGED, and FREED.
A Float, a Complex, or a SymbolicConstant specifying the rotational component in the connector's local 6-direction. Possible values for the SymbolicConstant are SET, UNCHANGED, and FREED.
A String or a SymbolicConstant specifying the name of the amplitude reference. Possible values for the SymbolicConstant are UNCHANGED and FREED. UNCHANGED should be used if the amplitude is propagated from the previous analysis step. FREED should be used if the boundary condition is changed to have no amplitude reference. You should provide the amplitude argument only if it is valid for the specified step.
A SymbolicConstant specifying how the boundary condition is defined in a *BUCKLE analysis. Possible values are NOT_APPLICABLE, STRESS_PERTURBATION, BUCKLING_MODES, and PERTURBATION_AND_BUCKLING. The default value is NOT_APPLICABLE.
Return value
Exceptions
The ConnDisplacementBC object can have the following members:
A String specifying the boundary condition repository key.
A Boolean specifying whether the boundary condition should remain fixed at the current values at the start of the step. The default value is OFF.
A SymbolicConstant specifying how the boundary condition is defined in a *BUCKLE analysis. Possible values are NOT_APPLICABLE, STRESS_PERTURBATION, BUCKLING_MODES, and PERTURBATION_AND_BUCKLING. The default value is NOT_APPLICABLE.
A SymbolicConstant specifying how the boundary condition is distributed spatially. Possible values are UNIFORM and USER_DEFINED. The default value is UNIFORM.
A String specifying the name of the assembled fastener to which the boundary condition will be applied. This argument is not valid when region is specified. When this argument is specified, fastenerSetName must also be specified. The default value is an empty string.
A String specifying the assembled fastener template model set to which the boundary condition will be applied. This argument is not valid when region is specified. When this argument is specified, fastenerName must also be specified. The default value is an empty string.
A SymbolicConstant specifying the category of the boundary condition. Possible values are MECHANICAL and THERMAL.
A Region object specifying the region to which the boundary condition is applied.
None or a DatumCsys object specifying the local coordinate system of the boundary condition's degrees of freedom. If localCsys=None, the degrees of freedom are defined in the global coordinate system. The default value is None.