ANSYS 18.1 Topology Optimization

[@0mfgitzramzi]

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.

[@jamiemills954]

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!

[@drdalyo]

Thank you very much!! I will keep posting!

[@xavierdean376]

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!

[@theomaia1460]

You're an angel, thank you for showing us how to do this in a simple and straightforward manner.

[@payamnaseri9674]

best ansys teaching ever!!

[@JunaidAli-ws1li]

Your tutorials are exceptionally profound and concise. Good work!

[@eltemplodeezequiel]

indeed...

[@hassanujjaman6612]

Your explanations are best and easy to understand for beginners like me

[@GregN456]

This was extremely helpful. You did a good job of walking us through the steps

[@DiegoAndrade]

Great tutorial using it on my class next week, thank you.

[@drdalyo]

Thanks!

[@sanketchikalge6647]

i always wanted this tool. make life so much easier. thanks for this awesome tutorial.

[@drdalyo]

+Sanket Chikalge Thank you!

[@jimmyloluolajide7777]

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

[@ankitsrivastavaMV]

Very nice Clean and clear work with good example

[@drdalyo]

Thank you very much!

[@BassamBadran]

I like your tutorial, it is clear and easy to learn

[@NinhGhoster]

Really need a Topology Optimization tutorial for COMSOL

[@seaneyo]

Thanks for the section converting the STL to solid

[@drdalyo]

Np:)

[@asadabbas9829]

thanks for tutorial. as a beginner it helped me a lot.

[@drdalyo]

Welcome!

[@mohammadtaleghani5973]

Hi, Doctor. Thanks for the video!

[@drdalyo]

Thanks for watching!

[@forge91]

this is very good tutorial, so simple and effective thank you

[@mohitthakur6920]

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?

[@bobobopan2354]

Truly great video. Very concise and helpful.

[@javeedtech]

Super quick explanation.. I tried doing in parallel window.

[@abdellahielmechtaba5036]

thanks for this awesome work and waiting for you to upload new ones

[@skrv1508]

great work. we expect more videos from you

[@drdalyo]

Thank you!

[@rafaelv.2859]

LOVE your tuts!! MORE MORE MORE!!

[@Filip227o]

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?

[@CassianMarioJohn]

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.

[@muhammadarsalan9367]

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

[@mu35li]

What an awesome tutorial. Thank you very much.

[@medadrufus]

Fantastic tutorial. Very very clear. Thank you

[@adityayardi7433]

great work man loved it :)

[@drdalyo]

Thank you!

[@rezaafshar3832]

Excellent tutorial! thanks for sharing!

[@mbpsdn]

Very nice explained, thank you so much ... 😊

[@diptanshusharma9064]

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.

[@ggmaxoriginal]

Your video is helpful to me study designing Thank you

[@tescoprimark1299]

Will you upload a new Ansys tutorial soon? Been nearly 3 years from the last one.

[@gianmarcotassi3761]

Thank you for this great video. I have a problem, and I really hope you can help me: once done the topology optimization, I click on "Transfer to Design validation system" (8:41), I obtain another Structural system, I update the results of the topology optimization system, and the geometry of the new structural system, but in this moment I get the errors "(DP 0) Attach failed.", "(DP 0) Geometry Interface not found.", "(DP 0) No compatible interface found for this file type". Do you have any idea of what cause this problem?Thank you very much in advance!

[@basummat8930]

Thank you. Please make new videos also in ansys

[@aydayd7349]

thank you so much for this great tutorial.

[@ΑθανάσιοςΓιαννακόπουλος-ξ2ρ]

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?

[@emmanuelimajewonah8782]

hello, i need help finding the size function on version 19 r3. anyone that can help would be very greatful.

[@light3739]

There's no "Size Function" option in Ansys 19.2.. could u plz help

[@CurrencyPrime]

I am abit confused with the boundary conditions you set at 4:24. Why is there a msg telling you that there is rigid body movement? There is something else which just looks very wrong in the model, take a look at the stresses in the area in which the bolt connections are located. You have tensile stresses there, a bolt cannot pull on the body. I am not very familiar with Ansys but with many other FEM tools so I can only guess what happens here. Ansys automatically sets an independent master node in the center of the bolt and now connects ALL nodes on the cylindrical surface to that one master node. To model this correctly, one has to only connect 180° to the master nodes according to the force direction. I am certain that this structure would completely fail since you can see that there are almost no stresses on the outer parts of the bolt connection. This model would correspond to a glued/welded connection.

[@drdalyo]

Hi! Thanks for your question. Regarding the first point on BC, the message is being displayed because the geometry deforms slightly in the Y direction (out of plane) and there are no BCs to prevent this movement. If you would like the message to dissapear, you could easily insert a Frictionless Support on the large surface of the model to constrain it in the Y direction. Regarding your second question, there is nothing wrong with the model. You have to keep in mind that a bearing load is a simplification and if you want something more accurate you would need to model the bolt itself and apply contact. I think actually you dont understand the loading condition presented. Its a bit hard to explain, but have a look at the image here: apolloedgeblog.files.wordpress.com/2016/09/slide24.png In this case you would have tensile stresses on the bracket. Ansys does not set master nodes at the center of the bolt, and you do not need to connect 180deg. I suggest reading the help information regarding Bearing Loads. When selecting the full interior surface of the hole, the load will be distributed on the compressive side. The structure would not fail because the stresses remain below the yield stress of steel (80MPa < 250MPa).

[@CurrencyPrime]

Hello again, thank you for the first answer, that makes sense but I still have a problem with the second part. The picture actually shows why your boundary conditions are not correct. Take a look at this model: imgur.com/PY8ywD5 espeically the top left region. The stresses are way higher on the left side of the bolt, which is what you would expect from such a construction. In your model the stresses are 0 in that region. If you look at the picture you linked, the top bar is getting pulled to the left. Where would it fail? Ofc it would fail on the right side of the bolt while it should be able to displace freely on the left part which is not a given condition in your model due to the fixed constraint all around the bolt area.

[@matinkarimov2397]

​@@CurrencyPrime That is a really good point to mention. Stresses should be way more higher on the left side of the fixed points, since it is pulled to the right. But, in the model we do have a opposite... I think boundary conditions do not reflect the real case.

[@vishaldolas1506]

thank!! this tutorial was very helpful :)

[@TheDonghoonlee]

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 :)

[@manikandansrinivasan9816]

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?

[@chakradharreddy8458]

When i click on update in the third analysis , it says update failed for the geometry component in static structural

[@adhirajbillawaria745]

Hi could you please tell me how to make the circles in ansys22 because they aren't being pulled in the same way as in ansys18 from your video

[@kevinmenezes8386]

@10:08 i cannot select the edges

[@drdalyo]

did u try using the edge filter button

[@kevinmenezes8386]

@@drdalyo Yes Sir. I tried. First time it got selected and I was able to round edges. But after that I tried multiple times was unable to select any edge.

[@drdalyo]

@@kevinmenezes8386 Maybe you should restart the tutorial from the beginning and see?

[@realkanavdhawan]

Very well explanation

[@chingkfc]

Hello, I am facing an issue. When I start the solver, it is getting stuck at "Preparing for Optimization: Starting MAPDL solver", and no further progress. May you please help with troubleshooting? Thanks.

[@prakhars962]

In 2020 version there is no option for proximity and curvatures.

[@AJ-et3vf]

Awesome video! Thank you!

[@3DPRINTechnology]

Hello Dr. Daylo, I optimized a component but solver has also removed material between loads and boundry conditions. now some fixed BCs are not attached with load point. what I do now?

[@mangeshdeshmukh7633]

Hi, Doctor. Thanks for the Great video!

[@drdalyo]

+Mangesh Deshmukh Hi, thank you for watching!

[@chonghow1804]

very good tutorial. Love it

[@timescavenger69]

What about the option "manufacturing constraints"? Which are those and how do they work? Thx

[@rogerio6497]

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.

[@maximtumencev4719]

Your video is helpful! Thank you

[@ajith_nandan]

Thanks for the upload

[@drdalyo]

No problem!

[@haveanicetime]

Really thank you sir!

[@drdalyo]

+Have a nice time! Thanks!

[@BorkoPantic]

IF i have a part made in catia and i want to optimize it in ansys 18, i open geometry but i cant find the dimensions that i want to optimize its not like in the old versions where u just click on the box left of the dimensions. In ansys 18 i cant find those, please help any1?

[@ardhshukla9028]

Hello sir please made a tutorial on how to do fea analysis of knee joint

[@davidw91]

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 ;)

[@drdalyo]

would be a good idea. I will see if i have time.

[@AnuragGupta-op7uz]

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.

[@angrykidsangrykids7855]

By comparing previous model stress value increased..then what is the purpose of topology optimization?

[@drdalyo]

If i remember correctly the stress may have marginally increased. So the real savings is weight of material.

[@yang50015]

Can I ask a question? I did it according to the video, but why i have only one original model rather than 1 original and 1 optimization model in the Geometry of transfer to design validation system. I donot know if I state my question clearly.

[@dangminhphung3288]

Great video. Special thanks. Nice day !!!

[@erayilhan1878]

Teşekkür Ederim Ödevimde Bilgiler Yardımcı Oldu

[@franecalusic2281]

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.

[@drdalyo]

I have not looked at this for v2020. Did you figure out the issue?

[@raheemalnajar8918]

Can I ask? I have Ansys workbench V16.1 but don't has topology Optimization

[@drdalyo]

You need to upgrade to a newer version

[@sial78617]

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

[@Mivrox]

finally somebody who makes good quality Ansys FEM tutorials, unlike our loving cows and curry friends ;)

[@brijeshmishra4165]

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.

[@drdalyo]

Try adding a frictionless support on the two large faces of the bracket.

[@ConnerHowie]

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?

[@drdalyo]

+Conner Howie Not sure i fully understand, maybe send me a more detailed email.

[@gotadrajendra]

Hello Doctor, Nice video.

[@SohilShah_Melodyman]

Well explained...thanks!

[@ElMakk_Med]

great video , keep up the good work

[@drdalyo]

+El Makkaouy Mohamed Thank you!

[@anhvunguyen7024]

Why i can not find topology optimization in left menu in Ansys 17.0 ?

[@bastianjulich3267]

Ansys 17.0 does not have a module for Topo-Opt. ...

[@gotadrajendra]

How to change dimensions in space claim

[@kianoushtavassoli341]

Thank you very much. It is very helpfully Video.

[@maulikkanakhara3781]

hello doctor, i am performing topological optmization for 2d truss structure and am able to perform static structural analysis perfectly. But, for topological optimization, i am not able to use line body for optimization even though i have given a circular cross section area for the body. can you suggest any possible reason for the same?

[@danwin95]

Hi, excellent video. Do you know if is it possible to do a topology optimization from initial stresses calculated previously in Ansys APDL, instead of applying a pressure in Workbench? Thanks

[@emrekosar8651]

Great job ! Thank you a lot.

[@drdalyo]

Thanks!

[@studentsufian]

Good video, but which one is better, my mean Solid thinking vs Ansys topology

[@nicolehr5886]

Do I need a full license? I just have the free student license

[@MayurGujarathi-pn6uj]

What should one do for latest ansys version? There is no option for size function?

[@VitesKutusu1]

I have the latest version as well. Did you have any problems with closing down the geometry tab? My ansys student version doesnt recognize (?) my design and doesnt let me pass to the model tab.

[@berk3371]

Hello Doctor, can we export optimized desing as .stp or .igs or .xt file? So we can re-design by different cad softwares

[@naviddavanikabir]

great tutorial. I followed the procedure. but I get the following error when I add topology optimsation block. "Update failed for the Solution component in Topology Optimization. Error updating cell Solution in system Topology Optimization." the solution of optimisatino block has a red cross on it, others have a checked mark. no other error symbol anywhere. any idea what might have caused this?

[@naviddavanikabir]

going into the setup section of topology optimisation: I see this error before I do anything: "The optimization solution run was terminated. Check the Optimization Output on the Solution Information object for possible causes."

[@wasfiiwasfi]

amazing tutorial !! Thank you

[@drdalyo]

Thank you!

[@Tonystark-mw4xm]

After the topology optimization part I got a error in feeding the optimised result to the geometry. It mentions update failed topology optimization has not generated a smoothed model file to consume. Any ideas of this problem., By the way the tutorial is great 🔥🔥🔥🎉❤️❤️

[@prafullkhot2088]

awesome tutorial

[@drdalyo]

Thanks!

[@vishnunagappan9061]

Actually I tried this one but unfortunately I didn't get the same stress value as you got in this tutorial at final solution aroun 130 region.... Could you help me.. ??

[@Moviemanquangvuong]

I am running some topology optimisation on bicycle design, and I'm wondering if there is an option to remove material from the edges of the mesh only? The optimised shape I get is consists of a truss structure with many members which makes sense, but I would like to see what sort of monocoque shape would be formed, but I am unsure if there is an option for the optimisation to remove material from the outside in. Do you know if it is possible?

[@drdalyo]

+Quang Vuong Try looking into the other options when using optimization, there are features like manufacturing constraints which might be what your looking for. You can find more about it in the help menu!

[@yusufrabie8148]

Great details.. thank you sir

[@drdalyo]

Thanks!

[@sharanvirdi7988]

Can you do this in ntop as well ??

[@VaIrMp]

Continue making tutorials please

[@hotsharkchicks]

Hey i have some errors trying to get my topology optimization to transfers into a new static structural. Is there anyway i can email or talk to you about this, i really need help

[@rohanchaugule5049]

Hi Doc, Plz share the download link for ansys work bench for a lower configuration laptop.

[@profabrarahmad3452]

greatly done. thank you

[@drdalyo]

thanks!

[@ElMakk_Med]

i have a problem when i click on geometry i get design modeler instead of spaceclaim, what can i do to have spaceclaim directly

[@drdalyo]

+El Makkaouy Mohamed In the main ANSYS Workbench menu bar, click on "Tools" then "Options", then in the tree on the left, click on the last item called "Geometry Import", then under "General Options" change the "Preferred Geometry Editor" to "SpaceClaim Direct Modeler" then click on "Ok" at the bottom. Please let me know if this works and helped answer your question!! You can also always right click on the Geometry cell and choose to open with either DesignModeler or Spaceclaim.

[@ElMakk_Med]

i've tried everything you said , but it is not working , all i get is design modeler, every time i click on geometry cell

[@drdalyo]

do you have spaceclaim installed? valid license? maybe your running an older version of ansys