How to determine axis of rotation within TransformAxis?

[Kumar Soma]

Hi everyone,

In the MoBL-ARMS Dynamic Upper Limb model, the axis of "rotation1" in the radioulnar joint is defined as [-0.01716099 0.99266564 -0.11966796]. How was this axis of rotation determined?

Thank you!

Kumar

[jimmy d]

They probably determined it from experimental data. Perhaps look at the original Paper;
Saul KR, Hu X, Goehler CM, Daly M, Vidt ME, Velisar A, Murray WM. Benchmarking of dynamic simulation predictions in two software platforms using an upper limb musculoskeletal model. Computer Methods in Biomechanics and Biomedical Engineering. 2015; 18:1445-58. 10.1080/10255842.2014.916698 (2015)

[Kumar Soma]

Thank you James!