June 30, 2021 at 1:48 pmBharanKumarASubscriber
I have done a simulation of untightening a bolt. I have applied a rotation and extracting the torque from the result. I have applied frictional contact with coefficient of 0.1 at the threads.June 30, 2021 at 4:51 pmpeteroznewmanSubscriberIt would help if you put an image of the geometry in your reply.
I expect the oscillations are stick-slip behavior.
Stick-slip behavior can be measured experimentally with the correct instrumentation.
July 1, 2021 at 12:40 pmBharanKumarASubscriberthe geometry has two contact regions, one shown in the fig. and the other at the threads, both having a friction coefficient of 0.1.
Can I find any documentation for such a behavior? and also how can it be reduced?
I have also run simulations for different friction coefficient values and for a value of 0.2 it appears to be reduced. Can you please explain this.
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