changing the sizes of bodies in simscape

i have imported a solidworks model to simscape and the calculated torques by my own dynamic modelling are different with the torques provided by simscape, i am wondering if it is possible that my link sizes have changed by importing to simscape, is it possible to check and change the sizes of links and how?

Answer 1

[Steve Miller]

Hi - when you import from SolidWorks to Simscape, the sizes will match exactly what was defined in SolidWorks. If it does not match a separate calculation you have done, here are some things you should check:

1. Units - are they defined in SolidWorks? Are they the same as in your calculation?
2. Density - is it defined in your CAD model? Is it the same as in your calculation?
3. Joint locations - are they at the exact location as in your calculation? Sometimes they may be not perfectly centered.
4. Kinematics - were the joints defined as you expected?

The conversion process will not alter anything that was defined in the CAD model.

--Steve