DPF Mechanical 2026 R1

TimeFreqSupport class

Last update: 18.06.2026

Namespace: Ans.DataProcessing

Summary

The time freq support describes an analysis' temporal or frequential space.

For a transient or static analysis all the time sets cumulatives indices with their times and their load steps are described.

For a harmonic analysis, the real and imaginary frequencies, the RPMs, the load steps are described.

For a modal analysis, the modes frequencies can be found.

Example

my_model = dpf.Model("../.../file.rst")

time_freq = my_model.TimeFreqSupport

#get number of time/freq sets

time_freq.NumberSets

# get field of real time freqs

my_time_freq_field = time_freq.TimeFreqs

my_time_freq_field.Unit #usually s or Hz

#get time or freqs on the first load step

my_time_freq_field.GetEntityDataById(1)

Class Information

Property Value
Namespace Ans.DataProcessing
Assembly CS_DataProcessing
Base Class Ans.DataProcessing.internal_objects.DpfType

Constructors

Constructor

TimeFreqSupport()

Constructor

TimeFreqSupport(pTimeFreqSupport)

Parameters:

  • pTimeFreqSupport (IntPtr)

Methods

AppendStep

obj.AppendStep(step_id, step_time_frequencies, step_complex_frequencies, rpm_value, step_harmonic_indices)

Parameters:

  • step_id (int)
  • step_time_frequencies (list)
  • step_complex_frequencies (list (optional))
  • rpm_value (float (optional))
  • step_harmonic_indices (dict (optional))

GetInternalData

result = obj.GetInternalData()

Returns: IntPtr

GetHarmonicIndices

Method GetHarmonicIndices return the harmonic indices field that matches with the specified stage number

result = obj.GetHarmonicIndices(num_stage)

Parameters:

  • num_stage (int (optional))

Returns: Field

SetHarmonicIndices

Method SetHarmonicIndices set the TimeFreqSupport harmonic indices field for a specified stage number

obj.SetHarmonicIndices(field, num_stage)

Parameters:

  • field (Field)
  • num_stage (int (optional))

GetTimeFreqCummulativeIndex

result = obj.GetTimeFreqCummulativeIndex(dVal, i1, i2)

Parameters:

  • dVal (float)
  • i1 (Int32& (out))
  • i2 (Int32& (out))

Returns: int

GetTimeFreqCummulativeIndex

Method GetTimeFreqCummulativeIndex return the index through all the steps of the step and substep asked

This cumulative index + 1 allow to request specific time set to the result provider (stress, strain...)

result = obj.GetTimeFreqCummulativeIndex(stepIndex, subStepIndex)

Parameters:

  • stepIndex (int)
  • subStepIndex (int)

Returns: int

GetImaginaryFreqsCummulativeIndex

result = obj.GetImaginaryFreqsCummulativeIndex(dVal, i1, i2)

Parameters:

  • dVal (float)
  • i1 (Int32& (out))
  • i2 (Int32& (out))

Returns: int

GetTimeFreq

Method GetTimeFreq return the time or frequency at the step and substep asked

result = obj.GetTimeFreq(stepIndex, subStepIndex)

Parameters:

  • stepIndex (int)
  • subStepIndex (int)

Returns: float

GetImaginaryFreq

Method GetImaginaryFreq return the time or frequency at the step and substep asked

result = obj.GetImaginaryFreq(stepIndex, subStepIndex)

Parameters:

  • stepIndex (int)
  • subStepIndex (int)

Returns: float

GetTimeFreq

Method GetTimeFreq return the time or frequency at the cumulative index asked

result = obj.GetTimeFreq(iCumulativeIndex)

Parameters:

  • iCumulativeIndex (int)

Returns: float

GetImaginaryFreq

Method GetImaginaryFreq return the time or frequency at the cumulative index asked

result = obj.GetImaginaryFreq(iCumulativeIndex)

Parameters:

  • iCumulativeIndex (int)

Returns: float

GetCyclicHarmonicIndex

Method GetCyclicHarmonicIndex return the cyclic harmonic index at the cumulative index asked

result = obj.GetCyclicHarmonicIndex(iCumulativeIndex)

Parameters:

  • iCumulativeIndex (int)

Returns: int

Properties

NumberSets

Property NumberSets number of time/freq sets in the model (in all the steps)

Type: int

# Get the property (read-only)
value = obj.NumberSets

TimeFreqs

Property TimeFreqs field of time frequency of the model. Each entity data of the field is a time/freq step

Type: Field

# Get or set the property
value = obj.TimeFreqs
obj.TimeFreqs = new_value

ImaginaryFreqs

Property TimeFreqs field of the imaginary time frequency of the model. Each entity data of the field is a time/freq step

Type: Field

# Get or set the property
value = obj.ImaginaryFreqs
obj.ImaginaryFreqs = new_value

Rpms

Property Rpms field having one rpm value by step

Type: Field

# Get or set the property
value = obj.Rpms
obj.Rpms = new_value

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