Thanks so much Ahmed very useful tutorial

Dear sir, your videos are verymuch help full and knowledgeable, pleas make a tutorial videos on Abaqus CFD

hello sir could you please explain why you didnt assign the lump mass in (x,y,z)? if we have to do a multi-directional earthquake the lump mass should be assign in all three- direction? thank u again

sir, can you please make a detailed video on response spectrum analysis of wind turbines

in this modal dynamics analysis the output response is with respect to time, is there any analysis type in abaqus that would give response wrt frequency ?

Dear sir, can you please make a tutorial on simulating anchor bolt in concrete base.

Hello Dr.Elkady, Thanks for your video with detailed explanation. I just want to know how did you calculate your critical damping ratio in the modal dynamic step. I am working on a displacement base motion problem of a cubic structure in aluminum alloy, but I have no idea how to define my critical damping ratio. Apparently it depends on its material characteristics and its geometry, and it is difficult to calculate with precision, I would like to know how did you proceed to get your value if possible. looking forward to your response. sincerely, Liren ZHENG.

@AElkady

2 жыл бұрын

There are no analytical expression to compute the damping coefficient. However, in litrature, you should find recommendations (based on field or experimental observations) for the damping value. For steel structures, the damping ratio is generally between 1% and 5%.

@lirenzheng254

2 жыл бұрын

@@AElkady Dr.Elkady, Thanks a lot for your reactive response. Exactly, I did find a recommendation of damping ratios of continuous metal structures between 2% and 4% in an article about damping ratios of materials., which is close to 1% and 5%. Thank-you again for your videos and your response, they are really helpful for my project. And it is a great pleasure to exchange with you. Have a nice day, Sincerely, Liren ZHENG.

Hi sir, can you make a video structural and accoustic model?

thanks again for your effort. i want to apply a multidirectional earthquake to my structure. should i used dynamic implicit or modal dynamic?

@AElkady

2 жыл бұрын

Model dynamic analysis is typically used for elastic analysis. Otherwise, dynamic implicit or explicit shall be used.

Hi Need support Steady State Modal Dynamics and Output eineeing judgement to calculate dynamic stiffness plot and damping coef plot in odb

thank you in advance sir, can i ask for excel data about time summary and acceleration

Preselected output requests are ignored in sim-based modal superposition procedures (except complex eigenvalue extraction). You must always specify output requests to the output database (.odb) file; otherwise, the analysis will not be performed. A user odb or sim output request is required in a sim-based procedure. Analysis Input File Processor exited with an error. How can I rectify this? Please help.

@dalianajjar

Жыл бұрын

.......

Dear Sir, is it possible to analyze buckling of the wind turbine and study the wind effect thank you in advance

@alialshemali5997

Жыл бұрын

Dear Sir, thank you. Please, I have one question. Where to apply the acceleration on the turbine? Because I noticed that the acceleration at the bottom is equal to zero.

i want to download the Sesimic data in .xls file, it is not in github, thanks you so much

@AElkady

10 ай бұрын

All model data can be obtained/extracted from inside the .cae file that is uploaded on GitHub.

"PRESELECTED OUTPUT REQUESTS ARE IGNORED IN SIM-BASED MODAL SUPERPOSITION PROCEDURES (EXCEPT COMPLEX EIGENVALUE EXTRACTION). YOU MUST ALWAYS SPECIFY OUTPUT REQUESTS TO THE OUTPUT DATABASE (.ODB) FILE; OTHERWISE, THE ANALYSIS WILL NOT BE PERFORMED. A USER ODB OR SIM OUTPUT REQUEST IS REQUIRED IN A SIM-BASED PROCEDURE." i am getting this error

@dalianajjar

Жыл бұрын

.......

@mohdqutbuddinsiddiqui3706

10 ай бұрын

Im getting the same result

Dear sir Can I get this earthquake data

@AElkady

2 жыл бұрын

The data are publicly available online, search google for "Elcentro acceleration data". Also, in that regards, you can use data for any other earthquake.

I really like the content of your video, it is very good to me. May can you give me your earthquake excel file so i can practice? thank you very much.

@AElkady

Жыл бұрын

The .cae file (which includes the earthquake record) can be downloaded from the link in the description.

@ucseven6518

Жыл бұрын

@@AElkady thank you so much sir. love you

Hello sir, Thank you so much for this life saving video on wind turbine, can you please help me with this . Preselected output requests are ignored in sim-based modal superposition procedures (except complex eigenvalue extraction). You must always specify output requests to the output database (.odb) file; otherwise, the analysis will not be performed. A user odb or sim output request is required in a sim-based procedure. Analysis Input File Processor exited with an error.

can you please give email id