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Posted:
1 decade ago
2010年4月16日 GMT-4 上午6:47

Look at the solvermanager. All variables, which have to be solved, are listed there. Just include them for the solving-process in one step of the segregated solver by opening a new step.

The problem is: Comsol can't solve contact problems time-dependent! You have to change certain settings in the model in order to use time-dependent solving. There is an example-model, you can find somewhere in the discussion forum.

Look at the solvermanager. All variables, which have to be solved, are listed there. Just include them for the solving-process in one step of the segregated solver by opening a new step.
The problem is: Comsol can't solve contact problems time-dependent! You have to change certain settings in the model in order to use time-dependent solving. There is an example-model, you can find somewhere in the discussion forum.

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Posted:
10 years ago
2011年3月22日 GMT-4 下午11:55

Hello!

I have the same problem, too. I don't know that if you had solved the problem, could you give me same advice about the error?

My model is also coupled structual and thermal multiphysics with friction, when I use stationary slover ,the nonlinear solver has no convergence. So i tried the time-dependent solver algorithm, it occurs error 7220.

In the HELP file, it says: the solve contact problems,use the augmented Lagrangian method. I think the augmented Lagrangian method is Stationary solver, what I should do with the time-dependent solver?

Thank you in advance!

Yajuan

Hello!
I have the same problem, too. I don't know that if you had solved the problem, could you give me same advice about the error?
My model is also coupled structual and thermal multiphysics with friction, when I use stationary slover ,the nonlinear solver has no convergence. So i tried the time-dependent solver algorithm, it occurs error 7220.
In the HELP file, it says: the solve contact problems,use the augmented Lagrangian method. I think the augmented Lagrangian method is Stationary solver, what I should do with the time-dependent solver?
Thank you in advance!
Yajuan

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Posted:
10 years ago
2011年3月23日 GMT-4 上午12:02

Hello!

I had the problem,too.

Does "Comsol can't solve contact problems time-dependent! " mean that there is no time-dependent solver for contact problem , if we try to solve the problem ,we should use the script?

About "You have to change certain settings in the model in order to use time-dependent solving." Could you please give me more details about "change certain setting"?

Thank you in advance!

Yajuan

Hello!
I had the problem,too.
Does "Comsol can't solve contact problems time-dependent! " mean that there is no time-dependent solver for contact problem , if we try to solve the problem ,we should use the script?
About "You have to change certain settings in the model in order to use time-dependent solving." Could you please give me more details about "change certain setting"?
Thank you in advance!
Yajuan

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Posted:
9 years ago
2011年4月9日 GMT-4 上午9:12

Hi everybody,

I have the same problem to, please, if someone could send a model or explain clearly the steps to make the contact problem work in time-dependent I'd be very grateful.

Thanks.

Hi everybody,
I have the same problem to, please, if someone could send a model or explain clearly the steps to make the contact problem work in time-dependent I'd be very grateful.
Thanks.

Ivar Kjelberg
CSEM SA (CH)
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Posted:
9 years ago
2011年4月9日 GMT-4 下午12:00

Hi

why do you need the time dependence ? to see the bouncing around of the contact ?

or is it just that you want a load that is increasing with time ?

If so use a stationary with a parameter called "t" and it's done

my model is a 4.1 (sorry I have left 3.5 behind ;)

--

Good luck

Ivar

Hi
why do you need the time dependence ? to see the bouncing around of the contact ?
or is it just that you want a load that is increasing with time ?
If so use a stationary with a parameter called "t" and it's done
my model is a 4.1 (sorry I have left 3.5 behind ;)
--
Good luck
Ivar