[gmx-users] Force Calculation through Pulling

[Samieegohar, Mohammadreza]

Hello,

I am using constant velocity method in order to pull a nanoparticle through a lipid bilayer in water solution in Gromacs.
I should calculate the simultaneous force in order to take an integral over position to obtain the PMF.

Do you know how can I measure the simultaneous  force in order to calculate the mean force ?
What command and procedure I should use?

Thank you