Inertia of a body split into two parts?
Posted: Thu Sep 16, 2021 1:48 am
Hello,
A few questions about inertia and mass centers in OpenSim:
1- Where do you get mass centers and inertias for your OpenSim models? Do you just find them in anthropometric tables such as Zatsiorski's, Leva's, or Nikolova's? I couldn't find the right references for the bones I was looking for.
2- Do you calculate them from the shape of the bones? Is there a tool for it? But then, there is no flesh so I don't see how inertia could be accurate, especially on the torso or on thick limbs such as thighs.
3- I want to split a body in two parts, let's say {head+torso}, into {head} and {torso}? How do you calculate mass center and inertia of each of the resulting parts then?
Thank you!
A few questions about inertia and mass centers in OpenSim:
1- Where do you get mass centers and inertias for your OpenSim models? Do you just find them in anthropometric tables such as Zatsiorski's, Leva's, or Nikolova's? I couldn't find the right references for the bones I was looking for.
2- Do you calculate them from the shape of the bones? Is there a tool for it? But then, there is no flesh so I don't see how inertia could be accurate, especially on the torso or on thick limbs such as thighs.
3- I want to split a body in two parts, let's say {head+torso}, into {head} and {torso}? How do you calculate mass center and inertia of each of the resulting parts then?
Thank you!