Search found 22 matches

by Yulu Liu
Mon Jan 13, 2020 2:33 pm
Forum: Analysis
Topic: static analysis error
Replies: 4
Views: 876

Re: static analysis error

Hi~
I assign the truss element to one brace, while the all beams and columns are assigned forceBeamColumn element with special_purpose BeamSecionProperty of fiber. When I run the analysis, there comes the error shown as the attached photo. Is there anything wrong? How to make it?
Thank you a lot.
by Yulu Liu
Sun Jan 05, 2020 12:07 pm
Forum: Post processing and data visualization
Topic: how to see the vibration mode
Replies: 3
Views: 820

Re: how to see the vibration mode

What do the options mean as shown in the picture attached?
When I set the grid size 10, and if I want 10 meters long beam, I need to input 100. (Why is it?)
So if I use these units mass(kg), and time(s), what is the unit of force?
by Yulu Liu
Tue Dec 24, 2019 9:19 am
Forum: Post processing and data visualization
Topic: Importing from tcl
Replies: 10
Views: 1792

Re: Importing from tcl

Oh, I see.
The error is shown as the attached photo.
by Yulu Liu
Mon Dec 23, 2019 5:36 pm
Forum: Post processing and data visualization
Topic: Importing from tcl
Replies: 10
Views: 1792

Re: Importing from tcl

I can't use the .mpco recorder command in a finished .tcl file, which is for the STKO post precess.
Could you please give me an example?
by Yulu Liu
Fri Dec 13, 2019 2:04 pm
Forum: Interaction
Topic: rigid floor
Replies: 7
Views: 1363

Re: rigid floor

When I set the mass center(master-node) of the rigid floor at the existed node of the model, the analysis result is shown as photo 1, which is correct. But when I set the mass center(master-node) at the new added hanging node out of the model, it produces photo 2, where there are incorrect results a...
by Yulu Liu
Thu Dec 12, 2019 3:12 pm
Forum: Interaction
Topic: rigid floor
Replies: 7
Views: 1363

Re: rigid floor

When I locate the the mass center, I find that it is out of the model.
So I create a new hanging master-node, and fix it in the Uz-Rx-Ry DOFs, then do I need to merge it with the existed merged model?
by Yulu Liu
Thu Dec 12, 2019 2:37 pm
Forum: OpenSees Sequential
Topic: opensees runs the STKO code
Replies: 3
Views: 999

Re: opensees runs the STKO code

Oh, I see.
Can opensees or STKO get the [M] matrix and [K] matrix of the built model? How to do it?
by Yulu Liu
Thu Dec 12, 2019 1:49 pm
Forum: OpenSees Sequential
Topic: opensees runs the STKO code
Replies: 3
Views: 999

opensees runs the STKO code

After STKO produces the 7 .tcl files, I try to run the main.tcl file in the opensees window, but it can't run.
How to run the 7 files correctly in opensees?
Please!
by Yulu Liu
Wed Dec 11, 2019 8:35 am
Forum: Interaction
Topic: rigid floor
Replies: 7
Views: 1363

Re: rigid floor

I find that when the master-node is out of the model it can't run correctly, but when the master-node is one node of the model, it run well.
by Yulu Liu
Wed Dec 11, 2019 7:25 am
Forum: Interaction
Topic: rigid floor
Replies: 7
Views: 1363

Re: rigid floor

Yeah, you get my words. Thank you.
And after creating a new hanging master-node, and fixing it in the Uz-Rx-Ry DOFs, do I need to merge it with the existed merged model?