Tips & Tricks: Analyzing a Mechanism’s Motion on Mars




Within PTC Creo Parametric, the Gravity command simulates the influence of a gravitational force on the motion of an assembly. You can analyze the effects of gravity on your assembly if you have a Mechanism Dynamics license.

In this post, we’ll apply the gravitational force that is present on the planet Mars and analyze its impact on a mechanism.

Image: Mars image captured by the Hubble Space Telescope in 2003. Source, Wikimedia

To analyze the effect of gravity on a mechanism…

1. On the ribbon bar, click Mechanism > Gravity. The Gravity dialog box opens.


Image: The purple arrow displays the direction of gravity.

2. On the Gravity dialog box, in the Magnitude field, type 3711. This is the approximate force of gravity on Mars.
3. Click OK to close the dialog box.
4. In the Mechanism Tree, expand ANALYSES.
5, Right-click AnalysisDefinition1 (DYNAMICS), and then click Run.
6. In the Confirmation dialog box, click Yes.


Image: The gravitational force caused the mechanism to collapse.

To watch a demonstration of these steps, watch this video tutorial at the PTC University Learning Exchange (you may need to register, if you have not already.)

To learn more, read the PTC Creo Help Center page, About the Gravity Dialog Box.

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Rendered gear assembly by user community contributor Vladimir Palffy