Fixed

The shown vertex of the wedge representing a pressure vessel meshed with solid elements is fixed...The edges of the holes of the shell are fixed...If the handle is analyzed as a part, the two highlighted faces can be fixed in space

Immovable

To access the immovable restraint, right-click on Fixtures in Simulation study tree and select Fixed Geometry...The Fixed Geometry restraint however is the same as the immovable restraint for...Fixed: No rotations at the fixed edges (slope of the deflected shape is zero...

Preventing Rigid Body Motion

If you fix three vertices, the model is stable...Fixing any number of vertices along a straight line is not adequate to stabilize a solid model...Although fixing a vertex theoretically stabilizes a shell model, the numerical

Summary of Displacement Restraints

Fixed Geometry (fixes translations and rotations...Immovable (fixes translations only...Fixed Hinge ...

Applying a Restraint

In a study, do one of the following: Right-click Fixtures and select from the options...Fixed Geometry...In nonlinear studies and for restraints other than Fixed, Immovable, and Symmetry restraints, you can associate the selected restraint type with a

Applying Loads and Restraints to Shells

Since shell elements have rotational degrees of freedom, you must differentiate between the Immovable restraint (no translation) and the Fixed

Applying a Prescribed Displacement

In the Fixture PropertyManager, select one of the following: Use Reference Geometry...column cell at a particular time step, the selected dofs are considered fixed

Fixtures

The Fixture PropertyManager allows you to prescribe zero or non-zero displacements on vertices, edges, or faces for use with static, frequency...

Setting up the Post-Cooling Analysis

For fixtures considered only for the post-cooling phase, you need to define a special fixture definition with these PropetyManager settings: Under...The selected entity where the fixture is applied is free to move...the solver applies the fixture and the selected entity is restrained from moving in the specified direction

Loads and Restraints

When you create a study, the program creates a Fixtures and External Loads folder in the Simulation study tree...Fixtures or External Loads folder for each restraint or load you define on one or more entities...accessible by right-clicking the Fixtures or External Loads folder in the Simulation study tree, or by clicking Simulation > Loads/Fixture...

Defining a Time Curve

In the Load/fixture PropertyManager, to view the actual values of the specified load/restraint, under Variation with time click View...the Y column cell at a particular time step, the selected dofs are considered fixed

Bearing Displacements Due to Stiffness

Consider a shaft with two bearing fixtures applied on cylindrical faces with stiffness: KR (radial) and KA (axial...

Splitting a Face (Split Tab)

In the Fixture or an External Loads PropertyManager, select the Split tab...In the Fixture or an External Loads PropertyManager, select the Split tab...In the Fixture or an External Loads PropertyManager, select the Split tab

Self-Alignment for Bearing

The images show two deformed shapes of a shaft with a bearing fixture...The bearing fixture assumes the housing to be rigid and immovable whereas the bearing connector assumes the housing to be flexible

Using a Time Curve from an Existing Library

In a Load/fixture PropertyManager of a transient thermal or nonlinear study, under Variation with time, click Curve then click Edit

Bearing Fixture PropertyManager

Bearing Fixture PropertyManager...Fixtures...and select Bearing Fixture. Bearing Cylindrical Face Enables ...

Using Bearing Connectors

shaft, use a bearing fixture...The behavior is the same as that for the bearing fixture although the results may

Remote Loads/Mass PropertyManager

Click Simulation > Loads/Fixture > Remote Load/Mass...A remote mass is considered to be fixed in space throughout the solution time range, if you do not apply any initial conditions

Symmetry Restraints for Shell Models

Use the Symmetry fixture under Advanced in the Fixture PropertyManager to apply a symmetry restraint to shell faces or shell edges

Defining a Convection Boundary Condition

... Loads and select Convection . Click Simulation > Loads/Fixture > Convection. Click Convection (...

Defining Surface to Ambient Radiation

... and select Radiation . Click Simulation > Loads/Fixture > Radiation. Click Radiation (Simulation ...

Split

You use the Split tab to apply fixtures or external forces to a section of a face instead of the whole face

Multiple Application of Displacement Restraints

As an example, if you fix Face 1 completely and prescribe a normal motion of 0.01” at Face 2, a contradiction arises at the common edge

Defining a Temperature Boundary Condition

tool_loads_temp.gif . Click Simulation > Loads/Fixture > Temperature Click Thermal Loads >

Connectors

component. A bearing fixture applies the bearing support between a component and the ground. In the ...