Dear Recherchers
Iam Dealing with optimization of smart FGM structures for active vibration control purpose. i finished my model which is FGM plate with bounded piezoelectric actuators and sensors, now iam trying to perform the optimization task. and since I 've never done that before iam looking for any guidance or tutorial on the subject. also, I have heard that it is also possible to do the optimization by linking ansys with matlab if it is please tell me how ?
Regards
Dear Bendine,
I have done some optimisation of material parameters using APDL code and Ansys Workbench Design Exploration Tool. If you are interested I can provide you more details.
Kind Regards,
Marzena Pawlik
Dear Bendine,
Maybe this video can help you:
https://www.youtube.com/watch?v=w7D-81PTk4M
Thank you Jersson leon for the reply and for the interesting video. I will try it and maybe use ga toolbox for my case
Thank you Claudia for the interest you show about the subject .
I can summary my optimization requirements in the following
My model is an fgm plate which means that it's material properties is gradually in the thickness direcation according to a power law formula P=(Pm-Pc)*(0.5+z/h)^k+Pc
The fgm plate is occupied by piezoelectric patches act as sensors and actuators
The purpose of the analyse is to actively reduce the vibration of the fgm plate by means piezo actuators so for the optimization what I need to find is the optimal of
1 the power low index
2 the piezo and the fgm thickness
3 the piezo location
4 the piezo electromechanical properties
And regarding how I do that I completely agree with ure comment . I need to do iteration and save the response of each one then compare it with the previous there is no other solution in my knowledge at least
Any other ideas will bensure very welcome
Thank u again
Regards
By the way if I succeed to do the optimization will add a failure criteria as a constrain for my optimisation that's the whole plan
Dear Bendine,
I have done some optimisation of material parameters using APDL code and Ansys Workbench Design Exploration Tool. If you are interested I can provide you more details.
Kind Regards,
Marzena Pawlik
Dear Marzena Pawlik
hank you for the reply , i am interested in ansys apdl so any guidance regarding that will be very welcome
regards
Dear Bendine,
Attached is the screenshot of Workbench Project Schematic. I used Mechanical APDL component system to upload my APDL code (saved as the .inp file). Then by clicking analysis tab, input and output parameters for optimization can be selected. This will create Parameter Set window.
Using Design Exploration tool you can perform various types of optimization (screening, multi-objective, sensitivity analysis etc.).
More information can be found in Ansys help.
Initially, I was planning to interface Matlab and Ansys to perform my optimization. However, this Design Exploration tool turns out to be sufficient for my application.
I hope you find this helpful.
Good Luck,
Marzena
Dear Marzena
thank you for the help you provided
it is not what iam looking for, i am more interested in doing the whole optimization using Mechanical ansys APDl .
Regards
Kouider
Dear all
I tried with ansys apdl and found alot difficulties so in my opinion coupling ansys with matlab is the best way to perform optimization
Regards
K
Dear All,
In my opinion, dealing with APDL code should be the last choice if there is a possibility for finding an easier method. For performing optimization, we need to manipulate ANSYS (e.g. changing material properties, mesh, BC and etc.) and read the result after each iteration. In addition, if it is not required that a difficult equation be solved in the process, then Excel can be used in conjunction with IronPython programming instead of using MATLAB since this method is a lot more convenient. The only requirement is having a basic knowledge of scripting which most of you guys do. There is a folder in ANSYS files with all the sample files required for learning this method. I have used MATLAB in conjunction with ANSYS for performing optimization and for that reason I suggested this method which is a lot easier. I put the link to get access to this folder. You need to work on "Excel_Parameter_Scripting".
C:\Program Files\ANSYS Inc\v190\commonfiles\examples\Scripting
As always recommend if the answer worked for you.
Thank you for all your suggestions
I finaly found out how to link ansys with matlab , the process can be done using the following line
!SET KMP_STACKSIZE=15000k & !SET KMP_STACKSIZE=15000k & "C:\Program Files\ANSYS Inc\v145\ansys\bin\winx64\ANSYS145.exe" -b -p ANSYS -i C:\Users\kouider\Desktop\Ansys_INSIC_article\Curved_plate\Curved_opti_PSO\curve.txt -o C:\Users\kouider\Desktop\Ansys_INSIC_article\Curved_plate\Curved_opti_PSO\ansys_out.txt
Regards
Dear @claudio
Thank you so much for your guidness The paper is in the writing process. I will definitely share it once i finish it
Have a bice day
Kouider
- Badges
- Science topic