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Abaqus: How can I fix the center of a gear? - Please Help!!
Wed, 2009-07-22 07:14 - zeke2282
Hi,
I´m trying to simulate the contact between two gears. Each gear has 60 triangular tooth and all of them are in contact at the same time.
I have one external gear and one internal gear. The internal gear is driven by a torque applied at it center.
I know that I should fix the center of the gear but I don´t know how to do it with Abaqus. Ive started to use two weeks ago.`I´ve already done the tutorials and reading the Manual!.
Please Help me!!
Best wishes
Ezequiel
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Create a reference point at
Create a reference point at the centre of the gear. Then in the Interactions module, create a "coupling" between the fixed surface and the reference point. Apply a fixed / encastred boundary condition to the reference point.
Hi, Thanks a lot for your
Hi,
Thanks a lot for your answer!.
I create the refrence point and I create a kinematical coupling between the surface and the RP. Then I applied the BC (U1=U2=U3=UR1=UR2=0) on that RP. Till here everything goes well!. The problem is when I want to apply the torsional moment to rotate the gear. Should I apply the torsional moment on the same reference point that I applied the BC or should I create a new reference point and the create a new kinematical coupling between this new RP with the surface (applying the torque) ?
You have two gears - so each
You have two gears - so each gear should have its own boundary conditions, referenced to its own RP, with its own kinematic coupling between the relevant surface and the RP. One gear needs to be fully fixed (encastred) i.e. U1=U2=U3=UR1=UR2=UR3=0, while the other gear just has the torque applied to its RP.
Hi, Thanks for your
Hi,
Thanks for your helps. It´s working right now!. After simulate several models, I think that the best way was creating a RP for each Gear, both RP on the axis of rotation and create a Kinematic coupling between the surface (Node Region) and the RP. 'One KC for the Driver and one KC for the Driven.
Do you Know the diference between the Kinematic and Distributed coupling?. I tryed with both and the I had diferent results. The Manual is not so clear
Thanks in advance!
Rolling contact by Abaqus
Hello
I'm doing a simulation
of two discs which each has a angular velocity (U6), and I used RP for each one. But when I
apply the angular velocity the size of the disk increases, someone can help? or someone have n example about this?
Thank you