Static Optimization algorithm
Posted: Wed Dec 17, 2014 4:48 pm
Dear all,
I have implemented static optimization in OpenSim v3.1 using the SO tool with the sum of muscle activations squared as the performance criterion and the "use muscle force-length-velocity relation" box checked. From the equations shown in the user guide, this configuration corresponds exactly to the "physiological" case of Anderson and Pandy. J Biomech 2001 34(2) 153-161, eqns 12 and 14. In this same paper, the authors state that the SO was solved using the "gradient-based sequential quadratic programming algorithm" of Pandy et al. J Biomech Eng 114(4) 450-460. Could anyone please confirm if this is the algorithm currently implemented in OpenSim to solve this SO problem? I haven't been able to find that level of detail on the support site.
Cheers,
PhilD
I have implemented static optimization in OpenSim v3.1 using the SO tool with the sum of muscle activations squared as the performance criterion and the "use muscle force-length-velocity relation" box checked. From the equations shown in the user guide, this configuration corresponds exactly to the "physiological" case of Anderson and Pandy. J Biomech 2001 34(2) 153-161, eqns 12 and 14. In this same paper, the authors state that the SO was solved using the "gradient-based sequential quadratic programming algorithm" of Pandy et al. J Biomech Eng 114(4) 450-460. Could anyone please confirm if this is the algorithm currently implemented in OpenSim to solve this SO problem? I haven't been able to find that level of detail on the support site.
Cheers,
PhilD