LimitState

class persalys.LimitState(*args)

Create a limit state.

Parameters

namestr

Name

physicalModelPhysicalModel

Physical model

outputNamestr

Interest variable name

operatorComparisonOperator

Comparison operator against threshold (optional)

thresholdfloat

Threshold value (optional)

Examples

>>> import openturns as ot
>>> import persalys

Create the model:

>>> R = persalys.Input('R', 0., ot.LogNormalMuSigma(300., 30., 0.).getDistribution(), 'Yield strength')
>>> F = persalys.Input('F', 0., ot.Normal(75000., 5000.), 'Traction load')
>>> G = persalys.Output('G', 'deviation')
>>> physicalModel = persalys.SymbolicPhysicalModel('model1', [R, F], [G], ['R-F/(pi_*100.0)'])

Create the limit state:

>>> limitState = persalys.LimitState('ls1', physicalModel, 'G', ot.Less(), 0.)

Attributes

thisown

The membership flag

Methods

getClassName()	Accessor to the object’s name.
getId()	Accessor to the object’s id.
getImplementation()	Accessor to the underlying implementation.
getName()	Accessor to the object’s name.
getOperator()	Comparison operator accessor.
getOutputName()	Accessor to the name of output variable of interest in limit state.
getPhysicalModel()	Physical model for limit state accessor.
getPythonScript()	Python script for limit state accessor.
getThreshold()	Threshold value for limit state accessor.
isValid()	Whether limit state is valid.
setName(name)	Accessor to the object’s name.
setOperator(comparisonOperator)	Comparison operator accessor.
setOutputName(outputName)	Accessor to the name of output variable of interest in limit state.
setThreshold(threshold)	Threshold value for limit state accessor.

GetClassName

__init__(*args)

Initialize self. See help(type(self)) for accurate signature.

getClassName()

Accessor to the object’s name.

Returns

class_namestr

The object class name (object.__class__.__name__).

getId()

Accessor to the object’s id.

Returns

idint

Internal unique identifier.

getImplementation()

Accessor to the underlying implementation.

Returns

implImplementation

The implementation class.

getName()

Accessor to the object’s name.

Returns

namestr

The name of the object.

getOperator()

Comparison operator accessor.

Returns

operatoropenturns.ComparisonOperator

Comparison operator

getOutputName()

Accessor to the name of output variable of interest in limit state.

Returns

outputNamestr

Interest variable name

getPhysicalModel()

Physical model for limit state accessor.

Returns

modelPhysicalModel

Physical model

getPythonScript()

Python script for limit state accessor.

Returns

scriptstr

Python script to rebuild the limit state

getThreshold()

Threshold value for limit state accessor.

Returns

thresholdfloat

Threshold value

isValid()

Whether limit state is valid.

Returns

isValidbool

Whether it is valid

setName(name)

Accessor to the object’s name.

Parameters

namestr

The name of the object.

setOperator(comparisonOperator)

Comparison operator accessor.

Parameters

operatoropenturns.ComparisonOperator

Comparison operator

setOutputName(outputName)

Accessor to the name of output variable of interest in limit state.

Parameters

outputNamestr

Interest variable name

setThreshold(threshold)

Threshold value for limit state accessor.

Parameters

thresholdfloat

Threshold value

property thisown

The membership flag