Frequently Asked Questions
Why is Hyfydy so much faster than Opensim?
The performance advantage of Hyfydy over OpenSim is mainly the result of using optimized algorithms and efficient software architecture. Hyfydy uses a custom algorithm to evaluate musculotendon dynamics that is orders of magnitude faster than the implementations in OpenSim. In addition, Hyfydy is optimized for use with small integration time steps, which are typically required with musculoskeletal simulations. These elements combined lead to a speedup of 50-100x over OpenSim, depending on which model is used.
How can I cite Hyfydy in a scientific publication?
Please use the following BibTex entry:
@misc{Geijtenbeek21,
author = {Thomas Geijtenbeek},
title = {The {Hyfydy} Simulation Software},
year = {2021},
month = {11},
url = {https://hyfydy.com},
note = {\url{https://hyfydy.com}}
}
What are musculoskeletal simulations?
Musculoskeletal or biomechanical simulations aim to simulate movement of humans and animals. The main difference with simulation tools used in robotics is that musculoskeletal simulators include musculotendon actuators, which mimic the way in which muscles and tendons produce forces in nature. In addition, musculoskeletal simulators typically use non-rigid or force-based contacts to emulate the effect of soft-tissue.
Can I use Hyfydy outside SCONE?
At this moment, Hyfydy is only available as a plugin for SCONE. If you are interested in using Hyfydy for research in a different environment, please let us know.
Can I use Hyfydy for commercial applications?
Hyfydy is currently available for research applications only. Please contact us if you are interested in a commercial application.
Where are the other Frequently Asked Questions?
Please contact us if you have a different question. We will try to get back to you as soon as possible.