You use the object Analysis to add a load. This topic describes adding loads to a static structural analysis.

To access the first analysis in the Mechanical project:

static_structural = Model.Analyses[0]

To change the number of steps of the analysis:

analysis_settings = static_structural.AnalysisSettings.NumberOfSteps = 4

To add and define a bolt and fixed support:

bolt = static_structural.AddBoltPretension()
bolt_scoping = ExtAPI.SelectionManager.CreateSelectionInfo(SelectionTypeEnum.GeometryEntities)
bolt_scoping.Ids = [200]
bolt.Location = bolt_scoping
bolt.SetDefineBy(1, BoltLoadDefineBy.Load) # Change definition for step #1.
bolt.Preload.Output.SetDiscreteValue(0, Quantity("15 [N]")) # Change preload value for step #1.

support = static_structural.AddFixedSupport()
support_scoping = ExtAPI.SelectionManager.CreateSelectionInfo(SelectionTypeEnum.GeometryEntities)
support_scoping.Ids = [104]
support.Location = support_scoping

To add and define the external and internal pressures exerted on the pipe and the force on a section of the pipe:

pressure = static_structural.AddPressure()
pressure_scoping = ExtAPI.SelectionManager.CreateSelectionInfo(SelectionTypeEnum.GeometryEntities)
pressure_scoping.Ids = [220]
pressure.Location = pressure_scoping
pressure.Magnitude.Output.Formula = '10*time'

pressure = static_structural.AddPressure()
pressure_scoping = ExtAPI.SelectionManager.CreateSelectionInfo(SelectionTypeEnum.GeometryEntities)
pressure_scoping.Ids = [221]
pressure.Location = pressure_scoping
pressure.Magnitude.Output.DiscreteValues=[Quantity('6 [Pa]')]

force = static_structural.AddForce()
force_scoping = ExtAPI.SelectionManager.CreateSelectionInfo(SelectionTypeEnum.GeometryEntities)
force_scoping.Ids = [219]
force.Location = force_scoping
force.Magnitude.Output.DiscreteValues=[Quantity('11.3 [N]'), Quantity('12.85 [N]')]

Script execution results in the following force definition:

To define a constant value of the force:

force.Magnitude.Output.DiscreteValues=[Quantity('10 [N]')] 

You can also change the force to be defined by components instead of by magnitude and set the values of an individual component:

force.DefineBy = LoadDefineBy.Components
force.ZComponent.Output.DiscreteValues = [Quantity('0 [N]'),Quantity('-9 [N]')]