Accleration not matching

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Zeeshanbhat
Posts: 153
Joined: Wed May 27, 2020 3:48 pm

Accleration not matching

Post by Zeeshanbhat » Tue Mar 22, 2022 3:46 pm

Dear team,
I tried to compare the acceleration that I get from the acceleration recorder command with the STKO Postprocessor. There is a difference between the two. I have attached the image below. Also If I compare the acceleration at the top story, there is a huge difference. Any suggestions in this regard will be appreciated.

Regards,
Zeeshan Bhat
Attachments
acc.PNG
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Zeeshanbhat
Posts: 153
Joined: Wed May 27, 2020 3:48 pm

Re: Accleration not matching

Post by Zeeshanbhat » Thu Mar 24, 2022 12:50 pm

Gentle reminder

Zeeshanbhat
Posts: 153
Joined: Wed May 27, 2020 3:48 pm

Re: Accleration not matching

Post by Zeeshanbhat » Fri Mar 25, 2022 1:58 pm

Dear Team,

Any update.

regards,
Zeeshan

Zeeshanbhat
Posts: 153
Joined: Wed May 27, 2020 3:48 pm

Re: Accleration not matching

Post by Zeeshanbhat » Mon Mar 28, 2022 1:29 pm

Dear Team,

If there is anything wrong in my model, please let me know.

Regards,
Zeeshan

HC2020
Posts: 48
Joined: Tue Aug 18, 2020 8:25 am

Re: Accleration not matching

Post by HC2020 » Tue Mar 29, 2022 8:09 am

Dear Zeeshan,

We promise we haven't forgotten about your question, we received a lot of complex questions on the forum lately and we are working our way through them. We appreciate your patience and we will answer this topic soon.

Zeeshanbhat
Posts: 153
Joined: Wed May 27, 2020 3:48 pm

Re: Accleration not matching

Post by Zeeshanbhat » Tue Mar 29, 2022 3:01 pm

Dear Team,

Thank you for your response.

Regards,
Zeeshan Bhat

Zeeshanbhat
Posts: 153
Joined: Wed May 27, 2020 3:48 pm

Re: Accleration not matching

Post by Zeeshanbhat » Mon Apr 04, 2022 6:11 am

Dear Team,

Gentle reminder.

Regards,
Zeeshan Bhat

STKO Team
Posts: 3066
Joined: Tue Oct 29, 2019 8:45 am

Re: Accleration not matching

Post by STKO Team » Mon Apr 04, 2022 9:49 am

Sorry for the late response.
Actually, the results are correct:

You are using the uniform excitation, which means the output accelerations are relative.
In STKO you are recording the relative acceleration,
while in the node recorder you added the timeSeries (option -timeSeries 2) which makes the output absolute.

Try to remove the -timeSeries 2 option and you will see the same output

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