Search found 7 matches

by enginer
Thu Dec 21, 2023 6:56 am
Forum: OpenSees.exe Users
Topic: Pattern problem
Replies: 1
Views: 4596

Pattern problem

The element deformation results recorded by using Uniform Excitation and Multi-Support Excitation are quite different,What is the reason? :(
by enginer
Thu Nov 09, 2023 12:01 am
Forum: OpenSees.exe Users
Topic: Dynamic analysis is not convergent
Replies: 1
Views: 3782

Dynamic analysis is not convergent

When I perform dynamic analysis, the ground motion is small,but it is not zero.The model does not converge. If the ground motion before the model does not converge is set to zero, it can converge, and the error is reported as follows: current EnergyIncr: -nan(ind) (max: 1e-06) Norm deltaX: nan, Norm...
by enginer
Wed Nov 08, 2023 11:48 pm
Forum: OpenSeesPy
Topic: Problem with algorithm
Replies: 0
Views: 84109

Problem with algorithm

If I use KrylovNewton's algorithm and iterate with initial, how do I call it?
by enginer
Sun Aug 27, 2023 5:37 pm
Forum: OpenSees.exe Users
Topic: ERROR in running OpenSessMP
Replies: 1
Views: 3934

ERROR in running OpenSessMP

Hello I've downloaded mpich2 and OpenSeesMP, they work separately, but can't call them like mpiexec -np 3 OpenSeesMP.exe Example.tcl. It will appear [unset]: unable to decode hostport from 51020 Abort(1091087) on node 0 (rank 0 in comm 0): Fatal error in PMPI_Init: Other MPI error, error stack: MPIR...
by enginer
Thu May 18, 2023 7:44 am
Forum: Reliability Analysis
Topic: fiber element
Replies: 1
Views: 14738

fiber element

Is it reasonable that there is a great difference in the bending moment of two nodes in the sameelement?
by enginer
Wed Apr 26, 2023 5:33 am
Forum: OpenSees.exe Users
Topic: ForceBeamColumn2d::update()--could not invert flexibility
Replies: 2
Views: 2610

Re: ForceBeamColumn2d::update()--could not invert flexibility

I know a singular section stiffness matrix.However how to deal with exactly?
by enginer
Wed Apr 26, 2023 12:38 am
Forum: OpenSees.exe Users
Topic: ForceBeamColumn2d::update()--could not invert flexibility
Replies: 2
Views: 2610

ForceBeamColumn2d::update()--could not invert flexibility

Hi,I am a new user. I am using the following code wipe; puts "system" model basic -ndm 3 -ndf 6 puts "restraint" if {[file exists output]==0} { file mkdir output; } #Cap beam node node 77 30 -4 -2.3 node 78 30 -3.5 -2.3 node 79 30 -3 -2.3 node 80 30 -2.4 -2.3 node 81 30 -2 -2.3 n...