Thanks! Would I also set the 'reaction forces' appearing in the force term equal to zero? As per my understanding of mechanics, they also should have no influence on the equations of motion (?)
[email protected] schrieb am Donnerstag, 3. Februar 2022 um 09:59:53 UTC+1: > The virtual speeds will appear in the force equations, but you then just > set them to zero because they are fictitious. You force equation should > then be correct. > > Jason > moorepants.info > +01 530-601-9791 <(530)%20601-9791> > > > On Thu, Feb 3, 2022 at 9:58 AM Peter Stahlecker <[email protected]> > wrote: > >> When I use a velocity constraint to force a particle not to move in a >> certain direction, there must be a 'reaction force' on the particle. >> I use KM.auxiliary_eqs to find reaction forces, which works very well in >> general! >> >> However, if I try to find the reaction force due to a velocity >> constraint, it does no seem to work: >> The force term of the equations of motion contains the 'virtual speed', >> its time derivative and the reaction force. >> >> Am I doing something wrong, or do velocity_constraints and >> KM.auxiliary_eqs just not work together? >> I attach some code, showing my problem. >> >> *Any help is greatly appreciated!* >> >> -- >> You received this message because you are subscribed to the Google Groups >> "sympy" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/sympy/e8091bb4-9730-4dc2-8e31-59662ef09e56n%40googlegroups.com >> >> <https://groups.google.com/d/msgid/sympy/e8091bb4-9730-4dc2-8e31-59662ef09e56n%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> > -- You received this message because you are subscribed to the Google Groups "sympy" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/sympy/5b2301f3-8dc7-4e69-9a52-31f5d235daban%40googlegroups.com.
