Flexible slider joint

Flexible slider joints are similar to slider joints, except that the track can be flexible and curvilinear.

To create a flexible slider joint, you need the following components:

• A track or model of beam elements that the sliding body follows.

• Nodes on the sliding body.

When those components are in your model, you can configure the flexible slider joint using the Flexible Slider Joint simulation object. For each flexible slider joint, you can configure the following:

• Driver—The driver moves the flexible slider joint. You can define a force driver or a displacement driver directly in the Flexible Slider dialog box.

• Sensor node—The sensor node computes the displacement of the nodes on the sliding body. If you create your own sensor nodes, you can select them when you request output. For example, if you create multiple flexible slider joints, you can select any combination of the sensor nodes you create for your output. Alternatively, you can let the solver generate the sensor node for you. When the solver generates the sensor node, you must select all or none of the sensor nodes when you request output.

• Friction—The options for friction allow you to do the following:To omit friction until you are finished checking movement in your model, select No Friction.To add the frictional forces, select Velocity or Displacement. To displace nodes but prohibit them from sliding, select Infinite.

• Joint type—You can select spherical, slider (also called prismatic), cylindrical, and slider-universal joints to create a flexible slider joint.

You can use the Flexible Slider Joint simulation object at the solution level only.

Unlike the other kinematic joints, the flexible slider has its own drivers, and it has its own liberation constraint. You cannot use the Kinematic Driver or the Joint Time Constraint boundary conditions with the flexible slider joint.

Requesting output

To request output for a flexible slider joint, create a structural output request for a Flexible Slider Result. The Flexible Slider Result outputs the relative displacement along the curvilinear abscissa for each selected sensor node. Each flexible slider can have one sensor node. You can let the solver create the sensor node, or you can create it. If you let the solver create the sensor node, you can select output for all of the sensor nodes or none of them. You cannot select a subset of them.

Where do I find it?

Creating a flexible slider joint

Application	Pre/Post
Prerequisite	Simulation file as the work part and displayed partSimcenter Nastran as the specified solverStructural as the specified analysis typeSOL 402 Multi-Step Nonlinear Kinematics as the specified solution type
Command Finder	Flexible Slider
Simulation Navigator	Simulation Object Container→New Simulation Object→Flexible Slider

Requesting output for a flexible slider joint

Application	Pre/Post
Prerequisite	Simcenter Nastran as the specified solverStructural as the specified analysis typeSOL 402 Multi-Step Nonlinear Kinematics as the specified solution type
Command Finder	Modeling Object
Location in dialog box	Modeling Objects Manager dialog box→Type list→Structural Output Requests→Create→Flexible Slider Result page→Enable FLXRESULTS Request

How do I

Add joints to your kinematics model using universal connections

Create a flexible slider joint

Create and assign control nodes

Learn more

SOL 402 structural analysis with kinematics

1D connection elements for kinematic joints

Kinematic Driver boundary condition

Joint Time Constraint boundary condition

Control nodes

Look up more details

Kinematic joints for SOL 402

Quick links

Command reference

Pre/Post video examples

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Flexible slider joint, Simcenter 3D 2021.1 Series

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