How to model a constant-length cable over a pulley (A-B-C) in Creo Mechanism / MDO

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Hello,

I would like to simulate a mechanism consisting of a pendulum (Point A), a pulley (Point B), and a slider (Point C) in an assembly.

The conditions are:

- The wire between Point A and Point C is inextensible (constant length, no stretch, no slack).

- The wire passes over Point B (pulley).

- The pendulum is rigid one-part.

My questions are:

1. Is it possible to build such an assembly model using relations or other Creo mechanisms?

2. Can this model be used for motion simulation in MDO (Mechanism Dynamics Option)?

I tried using relations based on measured distances (Analysis → Measure).

However, it seems that the measure feature cannot be used on the left-hand side of a relation, so I could not enforce the constraint properly.

Does anyone have suggestions for modeling this kind of system in Creo?

(I am useing Creo11)

Thank you in advance.

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