Display prescribed forces

[krishna raj]

Hi

am new to opensim, stuck on the load part.

I have a force file in single column value in newtons ,how can i transform the single value to x,y,z axis values for open sim, and i have to apply that force in the skull body part ,the osim is a half body (hyoid model)

what parameters should i provide in the point forces(x,y,z),and body forces(x,y,z)

and ground forces are required or not.

in the excel i have filled the point force x,y,z from (x axis* value in Newtons),(y axis * value in newtons),(z axis * value in newtons)- is it the right way or not.

the location of force -(green arrow ) not visible

any one ,plz suggest.

regards
krishnaraj gr

excel.png (24.89 KiB) Viewed 365 times

[krishna raj]

Thanks for your response ! I tested the application of the force and indeed it works as expected !

hi can we tell how you solved it,


my case:

I have the .mot file ,magnitude of point force (vx,vy,vz) alone ,not having the point position (px,py,pz)
in that case i tried the marker (x,y,z) position as (px,py,pz)

marker1 name:LCAG

i need point trajectory data- LCAGx,LCAGy,LCAGz(ground frame) for the complete motion.

in the attached picture -head is moving forward ,the pressure point is not following the markers.

i have tired the point kinematics also locating my markers ,but result marker point is not exactly matching the location.

if any other way please suggest

regards
krishnaraj gr