The ModalDynamicsStep object is used to provide dynamic time history response as a linear perturbation procedure using modal superposition.
The ModalDynamicsStep object is derived from the AnalysisStep object.
import step mdb.models[name].steps[name]
This method creates a ModalDynamicsStep object.
mdb.models[name].ModalDynamicsStep
Required arguments
A String specifying the repository key.
A String specifying the name of the previous step. The new step appears after this step in the list of analysis steps.
Optional arguments
A String specifying a description of the new step. The default value is an empty string.
A Boolean specifying that the step starts with zero initial conditions. The default value is OFF.
A Float specifying the total time period. The default value is 1.0.
A Float specifying the time increment to be used. The default value is 1.0.
A DirectDamping object.
A CompositeDamping object.
A RayleighDamping object.
A SymbolicConstant specifying the amplitude variation for loading magnitudes during the step. Possible values are STEP and RAMP. The default value is STEP.
A Boolean specifying whether to retain attributes from an existing step with the same name. The default value is False.
A DirectDampingByFrequency object.
A RayleighDampingByFrequency object.
Return value
A ModalDynamicsStep object.
Exceptions
RangeError.
This method modifies the ModalDynamicsStep object.
Required arguments
Optional arguments
The optional arguments to setValues are the same as the arguments to the ModalDynamicsStep method, except for the name, previous, and maintainAttributes arguments.
Return value
Exceptions
RangeError.
The ModalDynamicsStep object can have the following members:
A String specifying the repository key.
A Boolean specifying that the step starts with zero initial conditions. The default value is OFF.
A Float specifying the total time period. The default value is 1.0.
A Float specifying the time increment to be used. The default value is 1.0.
A SymbolicConstant specifying the amplitude variation for loading magnitudes during the step. Possible values are STEP and RAMP. The default value is STEP.
A String specifying the name of the previous step. The new step appears after this step in the list of analysis steps.
A String specifying a description of the new step. The default value is an empty string.
A DirectDamping object.
A CompositeDamping object.
A RayleighDamping object.
A DirectDampingByFrequency object.
A RayleighDampingByFrequency object.
A SymbolicConstant specifying whether the step has an explicit procedure type (procedureType=ANNEAL, DYNAMIC_EXPLICIT, or DYNAMIC_TEMP_DISPLACEMENT).
A Boolean specifying whether the step has a perturbation procedure type.
A Boolean specifying whether the step has a mechanical procedure type.
A SymbolicConstant specifying the Abaqus procedure. Possible values are:
ANNEAL
BUCKLE
COMPLEX_FREQUENCY
COUPLED_TEMP_DISPLACEMENT
COUPLED_THERMAL_ELECTRIC
DIRECT_CYCLIC
DYNAMIC_IMPLICIT
DYNAMIC_EXPLICIT
DYNAMIC_SUBSPACE
DYNAMIC_TEMP_DISPLACEMENT
COUPLED_THERMAL_ELECTRICAL_STRUCTURAL
FLOW
FREQUENCY
GEOSTATIC
HEAT_TRANSFER
MASS_DIFFUSION
MODAL_DYNAMICS
RANDOM_RESPONSE
RESPONSE_SPECTRUM
SOILS
STATIC_GENERAL
STATIC_LINEAR_PERTURBATION
STATIC_RIKS
STEADY_STATE_DIRECT
STEADY_STATE_MODAL
STEADY_STATE_SUBSPACE
VISCO
A Boolean specifying whether the step is suppressed or not. The default value is OFF.
A repository of FieldOutputRequestState objects.
A repository of HistoryOutputRequestState objects.
A DiagnosticPrint object.
A Monitor object.
A Restart object.
A repository of AdaptiveMeshConstraintState objects.
A repository of AdaptiveMeshDomain objects.
A Control object.
A SolverControl object.
A repository of BoundaryConditionState objects.
A repository of InteractionState objects.
A repository of LoadState objects.
A repository of LoadCase objects.
A repository of PredefinedFieldState objects.