Stiction force on rotational link

[Vito Zago]

Hello,

I'd like to ask what is the best way to create a rotational link with a stiction torque.

I'm currently using a ChLinkMotorRotationTorque link.

Thank you,

Vito

[alessand...@unipr.it]

Hi

what you can do is to create two overlapped links:

1) a ChLinkMotorRotationTorque that applies your torque

2) a ChLinkMotorRotationDriveline that contains a ChShaftsClutch  (the clutch acts as a sticking torque up to some prescribed limit, same as a brake with dry friction between two shafts)

NOTE A) instead of 2) one might be tempted to use a simplier ChLinkBrake: in theory it should give the same effect, however ChLinkBrake is not meant to be used for stiction, whereas ChShaftsClutch is based on nonsmooth dynamics and it can handle better the stiction effect.

NOTE B) one can avoid 1) by using a single ChLinkMotorRotationDriveline that cointains BOTH a ChShaftsClutch and a ChShaftsTorque

NOTE C) look at the demo_IRR_motors.cpp to see hof to use the ChLinkMotorRotationDriveline.

Alessandro Tasora

--
You received this message because you are subscribed to the Google Groups "ProjectChrono" group.
To unsubscribe from this group and stop receiving emails from it, send an email to projectchron...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/projectchrono/8d623534-fe7c-49ae-bd0a-2115e0d8c252n%40googlegroups.com.

Firma il tuo 5xmille all’Università di Parma, aiutaci a essere sempre più accoglienti e inclusivi verso le nostre studentesse e i nostri studenti - Indica 00308780345 nella tua denuncia dei redditi.