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Forces In Abaqus

01/11/2018 11:10 AM

In what way can I apply a 20Nm torque force to a shell surface in Abaqus? As Abaqus doesn't have the torque force in the load options. (OR) How can I convert 20Nm of torque to surface pressure?

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#1

Re: Forces in abaqus

01/11/2018 12:06 PM

The only way to relate <...torque...> to <...pressure...> is to introduce something with the dimensions of [length]cubed. There isn't enough in the original post to determine what it is. In its absence, nobody <...can...>.

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#5
In reply to #1

Re: Forces in abaqus

01/12/2018 4:28 AM

I am trying to evaluate the contact pressure on the sleeve of a roller chain. There was a pre-tension of 20Nm acting on the chain pin and sleeve on either side.In which form of load do you suggest me to apply this tension in Abaqus ?

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#6
In reply to #5

Re: Forces in abaqus

01/12/2018 6:02 AM

How about a drawing?

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#7
In reply to #6

Re: Forces in abaqus

01/12/2018 7:55 AM

Link for a better quality image:

https://ibb.co/ngSK96

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#2

Re: Forces in abaqus

01/11/2018 12:08 PM
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#3

Re: Forces in abaqus

01/11/2018 7:12 PM

WHY do you want to apply torque to a shell surface?

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#4
In reply to #3

Re: Forces in abaqus

01/12/2018 3:06 AM

Simulation of logrolling?

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#8
In reply to #4

Re: Forces in abaqus

01/12/2018 9:37 PM

I just couldn't picture it. He didn't define the shell surface, so I think I immediately thought "complex". Your reply is apt to the topic, and OPs thread in the interrim bears this out. Hmh.

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#9
In reply to #8

Re: Forces in abaqus

01/13/2018 2:59 AM

I just picked the first thing that came to mind about applying torque to a cylinder.

The roller chain instance may be complex. In the straight shots between sprockets, there is no torque on the sleeves. However, as the chain goes around any sprockets, the forces vary in ways that are complicated by chain wear ("stretch") and by the sleeve/pin versus sleeve/sprocket coefficients of friction as well as by lubrication.

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#10
In reply to #9

Re: Forces in abaqus

01/14/2018 1:49 PM

Exactly. At first, i am trying to apply the pre-tension to the pin surface pressfitted by link plates. And then the bushing tension derived from mks to the pin surface surrounded by bearing sleeve.

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#11
In reply to #10

Re: Forces in abaqus

01/15/2018 7:30 AM

...and the reason for not mentioning this stuff in the original post was what, please?

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#12
In reply to #11

Re: Forces in abaqus

01/15/2018 7:51 AM

There was no reason, I think I didn't elaborate the question to the point. But now, I think you understood the scenario. If you do have suggestions, it would help me tackle the challenge.

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