ANSYS boundary conditions

The tables list the Pre/Post boundary conditions (loads, constraints, simulation objects), the associated analysis types, and the ANSYS solver commands that they support.

Loads

Icon	Load	ANSYS Analysis Type	Corresponding ANSYS Command
	Force	Structural (all except Modal)Axisymmetric Structural	F
	Moment	Structural (all except Modal)	F
	Bearing	Structural (all except Modal)	F
	Torque	Structural (all except Modal)	F
	Pressure	Structural (all except Modal)Axisymmetric Structural	SFE
	Hydrostatic Pressure	Structural (all except Modal)	SFE
	Centrifugal Pressure	Structural (all except Modal)	SFE
	Gravity	Structural (all except Modal)Axisymmetric Structural	ACEL
	Rotation	Structural (all except Modal)Axisymmetric Structural	OMEGA
	Bolt Pre-Load	Structural (all except Modal)Axisymmetric Structural	SLOAD
	Temperature Load	Structural (all except Modal)Axisymmetric Structural	BF
	Heat Flux	Thermal	SFNOTESFE
Axisymmetric Thermal	SF
	Radiation	Thermal	SFSFE
Axisymmetric Thermal	SF
	Heat Generation	Thermal	BFBFE
Axisymmetric Thermal	BF

Constraints

Icon	Constraint	ANSYS Analysis Type	Corresponding ANSYS Commands
	User Defined Constraint	StructuralAxisymmetric Structural	D
	Enforced Acceleration Constraint	Structural	CMACELCMDOMEGA
	Enforced Velocity Constraint	Structural	CMACELCMDOMEGA
	Enforced Displacement Constraint	StructuralAxisymmetric Structural	D
	Fixed Boundary Degrees of Freedom	Modal Flexible Body	M
	Fixed Constraint	StructuralAxisymmetric Structural	D
	Fixed Translation Constraint	Structural	D
	Fixed Rotation Constraint	Structural	D
	Free Boundary Degrees of Freedom	Modal Flexible Body	MDELE
	Simply Supported Constraint	Structural	D
	Pinned Constraint	Structural	D
	Cylindrical Constraint	Structural	D
	Slider Constraint	Structural	D
	Roller Constraint	Structural	D
	Symmetric Constraint	Structural	DSYM
	Anti-Symmetric Constraint	Structural	DSYM
	Thermal Constraints	ThermalAxisymmetric Thermal	D
	Convection	ThermalAxisymmetric Thermal	SFE

Solver Specific Simulation Objects

Icon	Simulation Object	ANSYS Analysis Type	Corresponding ANSYS Commands
	Automatic Coupling	Structural	CP
	Automatic Thermal Coupling	ThermalAxisymmetric Thermal	CP
	Manual Coupling	StructuralAxisymmetric StructuralThermal	CP
	Manual Thermal Coupling	ThermalAxisymmetric Thermal	CPCE
	Structural Contact	StructuralAxisymmetric Structural	CONTA174/TARGE170 (Structural solutions)CONTA172/CONTA175/TARGE169

Look up more details

Simcenter Nastran and MSC Nastran boundary conditions

Abaqus boundary conditions

Simcenter 3D Multiphysics boundary conditions

Simcenter 3D Thermal/Flow, Electronic Systems Cooling, and Space Systems Thermal boundary conditions

Simcenter Samcef boundary conditions

LS-DYNA boundary conditions

Quick links

Command reference

Pre/Post video examples

Bulk Entry Descriptions

Simcenter 3D tutorials

Browse Simcenter 3D help by product area

ANSYS boundary conditions, Simcenter 3D 2021.1 Series

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For Heat Flux on Edge (SF), the units shown in the dialog are Power/Length^2. When formatted, the value is multiplied by the thickness of the shell, so the units are Power/Length.

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