element LeadRubberX used to define a Rubber bearing

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luochuizi
Posts: 18
Joined: Fri Jun 07, 2019 6:54 pm

element LeadRubberX used to define a Rubber bearing

Post by luochuizi » Mon Jun 24, 2019 11:19 pm

i want to create a element LeadRubberX to define a Rubber bearing.it was used in a 3D frame.the element is zero length and when suffering a earthquake load ,the opensees work failed like this:
UMD2FA: matrix is singular. Only 648 pivots found.
WARNING UmfpackGenLinSolver::solve(void)- 4 returned in factorization UMD2FA()
WARNING NewtonRaphson::solveCurrentStep() -the LinearSysOfEqn failed in solve()
DirectIntegrationAnalysis::analyze() - the Algorithm failed at time 0.02
OpenSees > analyze failed, returned: -3 error flag.
what's wrong with this?i'm looking for help.

Nik0la
Posts: 3
Joined: Fri May 26, 2023 8:48 pm

Re: element LeadRubberX used to define a Rubber bearing

Post by Nik0la » Fri May 26, 2023 10:01 pm

I want to validate the experiment in the example. However, the excitation file in the OpenSees WIKI is not available now. I'm looking for help. Can you send the documents to my email if it is convenient? Thanks!
The web address of the file is https://opensees.berkeley.edu/wiki/inde ... tation.zip
My email address is 210527075@fzu.edu.cn

mostlypen
Posts: 7
Joined: Sun Jun 04, 2023 11:11 pm

Re: element LeadRubberX used to define a Rubber bearing

Post by mostlypen » Sun Jun 04, 2023 11:13 pm

I am also facing problem while programming Rubber bearing. Can someone help me? basket random

alishakihn
Posts: 1
Joined: Mon Mar 27, 2023 12:46 am

Re: element LeadRubberX used to define a Rubber bearing

Post by alishakihn » Fri Jun 09, 2023 7:51 pm

Hi! Have you found your error?
I am facing the same issue. Flappy Bird

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