The PsdDefinition object defines the cross-spectral density frequency function for random response loading.
The PsdDefinition object is derived from the Amplitude object.
Api.amplitudes()[name]
This method creates a PsdDefinition object.
Api.PsdDefinition
odb_PsdDefinition&
PsdDefinition(const odb_String& name,
const odb_SequenceSequenceDouble& data,
const odb_String& unitType,
double referenceGravityAcceleration,
double referenecePower,
bool user,
const odb_String& timeSpan,
const odb_String& amplitude);Required arguments
An odb_String specifying the repository key.
An odb_SequenceSequenceDouble specifying the real part of the frequency function, the imaginary part of the frequency function, and the frequency or frequency band number values, depending on the value of unitType.
Optional arguments
An odb_String specifying the type of units for specifying the frequency function. "FORCE" implies power units. "BASE" implies gravity used to define base motion. "DB" implies decibel units. Possible values are "FORCE", "BASE", and "DB". The default value is "FORCE".
A Double specifying the reference gravity acceleration. This argument applies when unitType = "BASE". The default value is 1.0.
A Double specifying the reference power value, in load units squared. This argument applies when unitType = "DB". The default value is 0.0.
A Boolean specifying whether the frequency function is defined in user subroutine UPSD. If specified, then data is not applicable, and the unitType value must not be "DB". The default value is false.
An odb_String specifying the time span of the amplitude. Possible values are "STEP" and "TOTAL". The default value is "STEP".
An odb_String specifying the name of the amplitude that describes the dynamic event used to define the cross-spectral density frequency function. The default value is an empty string.
Return value
A PsdDefinition object.
Exceptions
InvalidNameError and RangeError.
This method modifies the PsdDefinition object.
Required arguments
Optional arguments
The optional arguments to setValues are the same as the arguments to the PsdDefinition method, except for the name argument.
Return value
Exceptions
RangeError.
The PsdDefinition object has members with the same names and descriptions as the arguments to the PsdDefinition method.