Felix Radisch

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Felix Radisch last won the day on June 14

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About Felix Radisch

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    Cologne, Germany

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  1. Felix Radisch

    Lattice type used by Inspire

    Hi Tjansari, Inspire 2018.1 is using a tetra mesh to form Lattice. Regards, Felix
  2. Felix Radisch

    Study comparation

    Hi Gojosema, Welcome to the Forum! For structural analysis and optimization we use Altair Optistruct in Inspire. In case you are going for a solver comparison, you might also check Altair Hyperworks to ensure you are not limited by Inspire which is just using very few options/capabilities of the core Optistruct. Regards, Felix
  3. Felix Radisch

    Installing Local Help in 2018.1

    Hi Yosef, What exactly do you mean with "still does not work"? Can you describe more in detail? Thanks! Felix
  4. Dear Lala, Please be aware this is a user support forum where noone has to answer your questions. Additionally, please immediately stick to the common rules of communication. Kind Regards, Felix Radisch
  5. Felix Radisch


    Hi Ravinder, Take a look here: https://solidthinking.com/training/2018/inspire/introduction.htm https://solidthinking.com/help/Inspire/2018/win/en_us/ Regards, Felix
  6. Hi Lala, Have you tried to turn type of the optimization to "max. stiffness"? It seems to me, your min. safety factor isn't achievable with your BCs and loads. Regards, Felix
  7. Felix Radisch

    Optimisation gets close to converging but then diverges

    Inspire is not allowing to set the max. amount of Iterations or any other values regarding the optimization process itself. Optistruct for sure is allowing this through Hypermesh - if there is a need for you to do it - please refere to HyperWorks user forum. Again - if there is no convergency within 80 Iterations, there is propably something wrong with the setup (maybe missing supports, large deformations...). -Felix
  8. Felix Radisch

    Optimisation gets close to converging but then diverges

    Hi Jerome, Welcome to the forum! I don't think your result will be better if we could increase the amount of iterations within Inspire. If your Optimization takes more than 50-60 Iterations, there is usually something wrong with your setup - or - at least we can tweak it to force a convergence. If you like to share your model wide, please upload it here - or - PM, so I can send you an upload link. Regards, Felix
  9. Felix Radisch

    Loads are insufficient to produce a shape

    Hi Rahul, Well - I think the issue is quite clear isn't? You are trying to run an optimization, which can't be achieved with the Boundary conditions you applied. You could play around with them to find out which it is - and change it. If I would have to guess: Your min. elementsize is too large or there is no solution possible with the direction of your draw-direction. -Felix
  10. Felix Radisch

    Lattice Design & NonDesign Space

    Hi Guys, I'd like to share "Tips and Tricks" regarding Lattice Design and the NonDesign Space. First to mention: Please keep Inspire updated - we introduced Lattice in 2017.3 but the last few months, we put a lot of effort to increase performance and stability! ATM (April 2018), 2018.1 is best to work with! If you are unhappy with the "resolution" of your nonDesign spaces after a lattice optimization - you can manually force the nondesignspace (per part) to use smaller elementsize inside the model configuration: Comparison: Before: After: Furthermore, you can create a smoothed lattice before you export it as an STL: Regards, Felix
  11. Felix Radisch

    Unable to run Optimization

    Just got the results for my optimization I started - it seems like your boundary conditions (stamping) isn't suitable for your designspace - or you have to decrease the "min. feature thickness". Felix
  12. Felix Radisch

    Optimisation still running, CPU usage 0%

    Hi Caleb, Glad to hear this was helpful! If you are changing your PC, you have to request another license through our website: https://solidthinking.com/Buy.aspx?category=Buy&item=Students Educators You can do mesh refinement with 2018.1, but it will not be helpful for the optimization - but the analysis: Click on this tiny triangle next to "Setup": Then choose "Mesh Control": You can use it to increase or decrease the elementsize by selecting surfaces of your model. But again - this isn't helpful for an optimization. Regards, Felix
  13. Felix Radisch

    Unable to run Optimization

    Hi Rahul, That's an impressive model! A few things I would suggest: 1. Delete all parts inside the model Browser which are not needed 2. Run the optimization for "max. stiffness" first - to find out what is an achievable SF with the "min. feature" thickness you are using 3. Take this info back into account for the "min. mass" optimization Regards, Felix
  14. Felix Radisch

    Unable to run Optimization

    Hi Rahul, Welcome to the sT Forum! Feel free to share your *.stmod with us, so we can have a look whats wrong there. Regards, Felix
  15. Felix Radisch

    Optimisation still running, CPU usage 0%

    Hi Caleb, I guess you are runing "out of core" with your optimization: You can easily check if you are running "in core" or "out of core", by taking a look at the topoOpt.out file, which is located in your scratch directory (by default in the user directory). Inside you will find information regarding the recent Iteration (easy to see if your computation is still runing). Furthermore the info regarding your Memory usage: Within the Iteration 0 you will get the infomation if it is running "in core" or not: In case it isn't running incore, you might decrease the amount of elements by increasing the "Minimum Thickness constraint" inside the "Run Optimization" window: Out of Core Simulations are working usually, but they are way slower as the RAM isn't large enouth to fit the computation. Instead, data is shifted between your HDD, RAM and the Processor. As a result 90% of the time, no computation is going on - but data is read and written to your HDD. You might also should think about upgrading your RAM - 8GB RAM is really not much for optimizations. To put things into perspective: I'm working with 32GB of RAM. Highend Customers, usuallly got 128GB and even more. Regards, Felix