Articulation type

Use the Articulation type of Solid Motion Effects simulation object to model the transient thermal effects of the movement of selected elements in the model. For example, it is useful for modeling the motion of mechanized assemblies, such as solar arrays, tracking antennas, or robotic systems. The thermal solver uses the displacements of the articulation sequence to calculate:

• Time-varying radiative conductances

• Heat loads, including radiative and solar heating

• The varying conductances of thermal couplings

The software recalculates conductances and loads at each time step. You can set the start and end times for the articulation as well as the calculation interval in the Articulation Parameters group on the Transient Setup page in the Solution dialog box.

Using joints to define Articulation movement

You use an Articulation type in conjunction with a Joint or Joint-Orbital Tracker modeling objects to define the movement of the selected elements in your model.

• Use a Joint type modeling object to model the translation or rotation of the moving elements.

• Use a Joint-Orbital Tracker type modeling object to link the rotation of the moving elements to the defined orbits.

Understanding Articulation

The thermal solver computes view factors, radiative conductances and thermal couplings at a specified time interval. It does not compute the view factors of the radiation request for elements for which no articulation movement occurs between two articulation times, but uses the results from the previous time step.

Post-processing results

You can view an animated display or the articulating motion in post processing. The animated model accurately displays all the rotations and translations of its articulated parts, including compound articulations.

How do I

Model articulation

Model the spinning of selected elements

Create a Joint modeling object

Create a Joint-Orbital Tracker modeling object

Learn more

Solid Motion Effects

Joint

Joint-Orbital Tracker

Inputs to expressions

Look up more details

Spinning types

Auto-generated expressions

Quick links

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

Thermal/Flow, Electronic Systems Cooling, and Space Systems Thermal

Command reference

Pre/Post video examples

Bulk Entry Descriptions

Simcenter 3D tutorials

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Articulation type, Simcenter 3D 2021.1 Series

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