Impossible to answer without more information. But getting large loads or stresses due to thermal loads is not surprising in itself. The structure wants to deform in some manner due to the geometry and the thermal load. And the boundary conditions prevent that deformation.
One option is to...
Perhaps not entirely relevant since I am in Europe but we use several services. What we don't use, as far as I know, is Dropbox. But I have a software vendor that distributes software with Dropbox. It works, but I just download a installation file.
I have two computers. One good thing with...
I agree with a lot of what has already been said. But I can't help wondering, what is the purpose of the question?
The reason I ask is because you are registred as a Student, and I think the question could be very good from a teaching perspective. Instead of making a lot of repetitive beam...
Greg
Thanks a lot for your help. I have enclosed a pdf with my calculations and no the results are more reasonable. It's not perfect yet but we are not "stuck" anymore.
And the students also say thanks.
Greg,
You mentioned 80 Hz in a previous post, was that based on a hand calculation or FEM? If it was a by hand I am very interested in the details, if it was FEM, I have the same result.
I am a but stuck with this right now :(.
I occasionally use ChatGPT, mostly for fun but sometimes work related. I basically consider it an advanced web browser.
I think it can be useful for translations. It can help me regarding formulations it I want things more or less formal. It is not perfect but significantly better than Google...
That was very interesting. The reason for the question is that with FEM we get the same result as the formula for bending. For torsion we get 80 Hz with FEM.
The difference between Kv1 and Kv2 is supposed to be thin vs thick walled tube. But I find the difference between them strange since I...
Sorry, I should have been clearer. It is only an example and I need the formula for the first torsional mode of a steel tube. Preferably with a reference, then we can hopefully find the reference.
I thought I had attached two files. I will try again.
Thanks
Edit: I could not attach a Mathcad...
Hi everybody.
I need a bit of help.
I am helping two students with their master thesis and the subject is a hybrid timber structure. That means that the core is built with concrete and the remaining parts with timber.
The problem is that there are torsional modes at relativly low frequencias...
Dear Blas,
Sorry for the late reply.
I agree that if would be a nice enhancement to be able to copy text. When it became possible to position the pointers or text based on the position in the model, that changed things for me. Then I could make the text follow the model instead of having the...
First of all, the amount of time required depends on the amount of data to input :).
If I use MSWord I will input the text on i "dead" picture, right? That works if the picture doesn't change but it does in this case.
In Femap I can input the text and orient it based on a position in the...
I need to do something that I have never done before in Femap.
I have a view with several textboxes. What I would like to do is to duplicate them so I can edit the text in the boxes. The required end result is two textboxes at the same location with slightly different content. The boxes will be...
In my experience if you want a productive discussion you start with some type of introduction. And when people ask questions regarding what you are trying to achieve it is usually polite to answer.
But you continue to communicate in code, literally. Not all in the forum know python even if many...
If you have three different modfem files with different version numbers you can use File-Merge to create a one assembled modfem-file. If you update one of the three files you can create a new assembled modfem based om two of the original files and the up-dated file. Isn't that what you were...
I have both "used" ChatGPT and more like "played" with it. The use has mostly been translations. For that that it is very good, but it usually requires that you know both languages. ChatGPT can be very helpful choosing the exact wording but you need to check the end result. But it does speed up...
I think that the forum is slowly becoming better. "My Forums" is back but I got the feeling that my list of forums had grown :). My mistake was that I decided to "Unwatch" everything and start over. And for each individual forum I add I have to make individual settings, that is a lot of mouse...
One possibility may be to import the model into a pre-processor that works with both Abaqus and MSC.Nastran. But I think that will require a lot of testing to insure everything ultimately works as you intend it to work.
My first experience from the "new" forum was a lot of e-mails. Perhaps it is not the best default setting to activate everything. There was (and perhaps still is) a recommendation to not use e-mail any address in a post. The purpose is to avoid spam, perhaps someting to keep in mind regarding...
