Gear is rotating wrt wrong axis in simscape multibody
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I made two gears in solidworks and then exported their step. file. Then I opened simscape in simulink and connected these gears to revolute joint and then to rigid transform. I offsetted one gear to make a gear mesh and reoriented both gears to xy plane using the rigid transform. I changed one of the gear's torque to "provided by input". I then connected a constant so that that gear would rotate at a specified torque.
Now It should rotate wrt z axis but it rotates wrt x axis. How can I fix this issue?
回答（1 个）
Abhishek
2025-6-10
移动：Steve Miller
2025-8-11
0 个投票
Hi, just a quick clarification to better understand the issue:
- After importing the STEP file into Simscape, have you verified the orientation of the gear's local reference frame using Mechanics Explorer?
- Specifically, is the gear's rotation axis (Z-axis) aligned with the global Z-axis?
- Also, in the Revolute Joint, is the axis of rotation explicitly set to [0 0 1]?Sometimes imported geometries from SolidWorks come in with unexpected frame orientations, which can cause this kind of mismatch.
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