ANSYS 18.1 Topology Optimization
Vložit
- čas přidán 3. 06. 2017
- ANSYS v18.1 Workbench Tutorial video on how to use the topology optimization feature in order to reduce the total mass of a mechanical metal bracket.
DOWNLOAD:
SpaceClaim v18.1 Final Geometry File: cutt.ly/DrDaly...
Mirror Link: goo.gl/Nj57Ns
Long Description:
We will begin by opening ANSYS v18.1 Workbench interface. Check the engineering data to ensure the proper material is selected (in our case it will be the default material). Open up SpaceClaim to create our geometry (note, you can always right click on the geometry cell and click to open in DesignModeler instead if you are more comfortable using it). Once in SpaceClaim, we will use the line tool and pull tool to create our metal bracket. Once created, we exit SpaceClaim and head into Mechanical to set up our loads and boundary conditions. Create a mesh using the sizing "Proximity and Curvature" to better capture the round corner details. Add two cylindrical supports, choose to make the tangential component free. Add one bearing load with 50KN in the X-dir and 100KN in the Z-dir. Add Equivalent Stress results and Solve to view the stress results.
Exit Mechanical and go back to the project schematic window. Drag Topology Optimization onto cell 7 "Results" of the first analysis. This will link the static structural analysis to the topology optimization analysis. Leave most of the settings default. Change the Response Constraint to retain 60% of the mass. Solve the system.
Exit out of Mechanical and right click on cell 7 Results on the topology optimization analysis and click on "Transfer to Design Validation System" in order to export the STL file generated into a new static structural analysis automatically. Open up SpaceClaim in the new analysis to view the STL import results. Create a new sketch plane and copy the edges of the STL file to a new sketch. Under the Repair tab, use the option Fit Curves to simplify the rough curve geometry from the import. Choose to Correct Tangency and keep the default distance 0.1mm. Simpify the rest of the geometry as needed using the Trim Away tool and Create Corner tool. Should you want to reduce the amount of faces for mesh generation, use the Merge Faces tool under the repair tab to merge selected faces into one face. In order to not export all product structure files into the analysis, we must right click on the products in the structure tree and choose "Suppress for Physics" in order to remove these items from the analysis. Keep only the Solid file.
Exit SpaceClaim and open Mechanical by double clicking on the Model cell. Say yes when prompted to read upstream data. Regenerate mesh and reapply boundary conditions and loads. Finally solve the model to view the final results.
---Please subscribe to my channel DrDalyo for more videos! Enjoy!
You are literally a king. I'm sick and tired of these ansys videos recorded in 360p with shitty royalty free music playing and no audio commentary. You made this very straight forward.
Dr. DalyO, I really appreciate the time that you have spent to put these ANSYS tutorials together. They are by far the most informative, concise, and interesting modeling/FEA videos that I have seen. Most videos are either technical or interesting, but not both - you have an excellent method of presenting. Thank you! I see that most of your videos are from 5 and 6 years ago. I am really looking forward to you releasing more tutorials based on ANSYS 2020. Please keep the great work coming!
Thank you very much!! I will keep posting!
This is by far the best ANSYS video out! Great work DrDalyO!
Please continue creating content for the latest versions of ANSYS - you are helping so many people. Thank you!
best ansys teaching ever!!
You're an angel, thank you for showing us how to do this in a simple and straightforward manner.
Your tutorials are exceptionally profound and concise. Good work!
indeed...
Great tutorial using it on my class next week, thank you.
Thanks!
i always wanted this tool. make life so much easier. thanks for this awesome tutorial.
+Sanket Chikalge Thank you!
Your explanations are best and easy to understand for beginners like me
This was extremely helpful. You did a good job of walking us through the steps
Hi, Doctor. Thanks for the video!
Thanks for watching!
Thanks for the section converting the STL to solid
Np:)
Very nice Clean and clear work with good example
Thank you very much!
Thank you for putting out the best Ansys tutorials on youtube, DrDaylo. That being said, please, I need assistance on acoustics simulation (impedance tube experiment) and was hoping you would be able to assist as I've been trying for months now with no significant progress. Thanks
I like your tutorial, it is clear and easy to learn
Super quick explanation.. I tried doing in parallel window.
thanks for tutorial. as a beginner it helped me a lot.
Welcome!
great work man loved it :)
Thanks!
thanks for this awesome work and waiting for you to upload new ones
this is very good tutorial, so simple and effective thank you
What an awesome tutorial. Thank you very much.
great work. we expect more videos from you
Thank you!
Truly great video. Very concise and helpful.
Your video is helpful to me study designing
Thank you
LOVE your tuts!! MORE MORE MORE!!
Hi DrDalyo, thanks for the awesome tutorial. However, i did face a problem while transferring the optimized results to a new static, structural system. When i update the geometry in block 'c' it gives me this error "Update failed for Geometry component in Model,static, structural . Update of the geometry component in Model, static, structural did not mark the component as updated due to a change made to the Results component during the update". This may be a noob error on my part but I would really appreciate any comments from you on this.
Hi, in Ansys 2021, I'm not able to extract the results of Topology optimization to a new solution, if I do that, I'm not getting the "geometry" part of the static stuctural process.
My requirement is to extract the topology optimized result to parametric software so I can edit it on my own. Can someone please help?
Excellent tutorial! thanks for sharing!
thank you so much for this great tutorial.
Fantastic tutorial. Very very clear. Thank you
Your videos are really helpful. Please do a tutorial on concrete beam mid point loading using drucker-prager in ansys workbench. I will be really thankful
Really need a Topology Optimization tutorial for COMSOL
Thank you. Please make new videos also in ansys
Thanks! It was really helpful.
Hey Doc!! Good tutorial....i hope that you'll keep uploading. I'm gonna get you some subscribers. You're really doing a solid favour for the engineers in India.
Hi, Doctor. Thanks for the Great video!
+Mangesh Deshmukh Hi, thank you for watching!
Thank you very much!
finally somebody who makes good quality Ansys FEM tutorials, unlike our loving cows and curry friends ;)
thank!! this tutorial was very helpful :)
Your video is helpful!
Thank you
Great video. Special thanks. Nice day !!!
Very well explanation
hello, i need help finding the size function on version 19 r3. anyone that can help would be very greatful.
Well explained...thanks!
Hi thank you for great video. I have a question when comparing with tabular data. before applying topology Stress.Max is 83.5 but it grows 137.49!! I wanna know of purpose of Topology Optimization! Thanks :)
Very nice explained, thank you so much ... 😊
Extremely helpful tutorial, thank you so much! Just wanted to ask, when tapping Transfer to Design Validation System (Ansys 2022 R2) , has anyone else faced the problem that there was no geometry in the cells to edit?
Teşekkür Ederim Ödevimde Bilgiler Yardımcı Oldu
Thanks for the upload
No problem!
great video , keep up the good work
+El Makkaouy Mohamed Thank you!
Awesome video! Thank you!
Great job ! Thank you a lot.
Thanks!
amazing tutorial !! Thank you
Thank you!
For some reason I don't have Size Function Option, I only have Use Adaptive Sizing. Yes/No Great video!
Will you upload a new Ansys tutorial soon? Been nearly 3 years from the last one.
Hello sir please made a tutorial on how to do fea analysis of knee joint
very good tutorial. Love it
very helpful
Gracas Totales Mister Doctor
Here's my problem. I have given transfer to Design validation(geometry) after Structural optimization in ANSYS 2022R2 student version
What happens is my geometry which is only 90mm in Structural optimization module is showing as 90m in Spaceclaim. What is the problem behind this? How can i get the optimized geometry with the same units?
Isnt the ring around upper hole a bit too thin? If it was connected wirh bolts or something most of contact would be around the side of ring that is the thinnest?
sir plz help
thiz kind of error comes in ansys 14
You have a bearing load that has an axial component. This is not allowed. If an axial component is desired, create a separate force load in order to apply the axial component.
One or more bodies may be underconstrained and experiencing rigid body motion. Weak springs have been added to attain a solution. Refer to Troubleshooting in the Help System for more details.
Try adding a frictionless support on the two large faces of the bracket.
By comparing previous model stress value increased..then what is the purpose of topology optimization?
If i remember correctly the stress may have marginally increased. So the real savings is weight of material.
thank you sir
Really thank you sir!
+Have a nice time! Thanks!
Great video! Could you think of doing some similar video explaining the topology optimization with a modal analysis instead of the static structural? I would be very interested ;)
would be a good idea. I will see if i have time.
Wish this feature was available in earlier versions :P
+vijay jangid It was available, but they improved it a lot in this version
greatly done. thank you
thanks!
Respected sir i am tryin this from a week but still facing a problem while adding cylinderical and bearing support on hole sir i dont not whats the reason behind that it cannot select that cylinderical hole for both bearing laod and cylendrical support sir kinldy gauide me how i solve this problem.actullay when i slect that hole it would turn into green shaded line but when i press apply that agian it remain deselected and no conditon applied on that hole .Sir i know you are professional and you have more knowledge than me kindly help me to solve this issue
Continue making tutorials please
SO AWESOME
There's no "Size Function" option in Ansys 19.2.. could u plz help
This is amazing
You are amazing man :)
Great details.. thank you sir
Thanks!
awesome tutorial
Thanks!
Hello Doctor, Nice video.
this looks very much like DesignSpark Mechanical!
awsome thanks!
welcome!
Thank you very much. It is very helpfully Video.
very useful... thanks
WELL EXPLAINED!!
Well done.
Thanks bro
thank youuu for this video
Welcomeee!
can somebody please help me out with the geometry part? im using ansys 22 and its just not extruding and this methods not solving from a solidworks cad design. please help me out. thank you
In 2020 version there is no option for proximity and curvatures.
quite helpful! thx
I don't think the validation showed that this topology optimization is not good, am I right?. There was 83MPa before and there is 137 after. Can you somehow make an if condition, that says to move as much weight as possible, but to keep the stress at max +5% (87MPa in this case)? I think cutting down strictly 60% of the weight is not very practical. Anyway for learning and education it is enough. I appreciate the video description, really good job. Wish you a future success with this channel.
+Lukáš Kratochvila you could also add a maximum stress condition. Actually the first time I ran the model the max stress stayed the same while cutting 60%. I think during recording, i cleaned up the model differently and the stress increased. But as you can see its very local in the bolt hole.
Test it out for yourself and see.
Thanks for the comment!
Sir can you please do a tutorial on "how to find heat dissipation of a brake disc" for optimising the vents on the disc for better heat loss
well done, thank you
+Abbas Kasim Mohammed Thank you!
Hello there,
I'm using Ansys 2020 version. When I clicked on the results to choose "Transfer to Design Validation System", in the new window I didn't get the option "Geometry", just the other ones (Model, Setup, etc.). What could be the problem?
Thanks.
I have not looked at this for v2020. Did you figure out the issue?
Thanks for the video sir,
How to topology optimization without reducing material thickness? Are there any steps to do this?
Great video!
Could you do some more tutorial videos with Ansys 18? Or do you know of any websites that is good?
I'm trying to learn the software for the first time, but videos of older version like 17 or lower have quite a different user interface which makes it difficult to follow when using version 18.
Which method of topology optimisation is used here like SIMP, BESO , level set or ESO? Actually i want to know at the backend of Ansys, which algorithm is used. Basically, i want to perform topology optimisation in a coding environment especially in python, so some information is required regarding this. Also, can we check the backend algorithm used in Ansys? Hope to hear from you soon.
Great , thanks
nice job, thank you
Thanks!
Amazing !!! really thanks
Np Thanks!
Great Job!!
Great video man. I am however struggling on how to an optimization for the displacement and mass. The displacement response convergence graph shows that the displacement stays zero which results in a non-convergence error. The mass criterion converges fine. Any ideas?
+Conner Howie Not sure i fully understand, maybe send me a more detailed email.
Good afternoon, is it possible to estimate the heat flow (wm ^ -2) versus the time (s) entering the experimental temperatures in Celsis versus the time (inverse problem) using ANSYS and Direct Optimization? My 3D domain is a solid one.
The following are the required information.
Properties of solid (3D):
Thermal conductivity k: 43.1 W/(m.K)
Density rho: 14900 kg/m^3
Heat capacity at constant pressure Cp: 332.94 J/(kg.K)
The files "Termocouple 1.txt" and "Termocouple 2.txt" contain the temperatures measured experimentally, in Celsius, versus the time in seconds.
The "Measured Heat flux for comparison.txt" file contains the experimental measured heat flow and can be used for comparison with the numerical inverse technique that will estimate the heat flow (W m^-2) versus time (s).
The files "solid_domain.igs" or "solid_domain.x_b" show the drawing made in SolidWorks for use in numerical simulation, drawn in mm.
The "Results using COMSOL.bmp" file presents the comparison of the heat flows estimated by the Nelder-Mead optimization technique and the heat flow measured experimentally.
Domain Point Probe 1:
Coordinates of thermocouple 1:
x: 0.0043 m; y: 0.0035 m; z: 0.0047 m
Domain Point Probe 2:
Coordinates of thermocouple 2:
x: 0.0035 m; y: 0.0089 m; z: 0.0047 m
Total sample size (x, y, z):
0.0127 x 0.0127 x 0.0047 (m) = 1.27 x 1.27 x 0.47 (cm) =
12.7 x 12.7 x 4.7 (mm)
Data acquisition interval = 0.222000 seconds
Initial sample temperature = 29.2 (ºC) = 302.35 K
Number of thermocouples = 2
Coordinate (s) of the thermocouple (s):
x = 0.0043 (m) y = 0.0035 (m) z = 0.0047 (m)
x = 4.3 (mm) y = 3.5 (mm) z = 4.7 (mm)
x = 0.0035 (m) y = 0.0089 (m) z = 0.0047 (m)
x = 3.5 (mm) y = 8.9 (mm) z = 4.7 (mm)
Area (s) occupied by the heat flow (s)
xo = 0 x = 0.0104 m
yo = 0 y = 0.0104 m
zo = 0.0 z = 0.0
Consider the convection boundary conditions with h = 20 ºC and Tinfinite = 29.221823 ºC. Ie:
heat transfer coefficient h: 20 W/(m^2.K)
External temperature Text: 29.221823 ºC
I appreciate it.