Hey Manuel, what if, the error showing *** ERROR # 312 *** In static load case 1 the compliance is negative or large 8.71101e+17. Optimization/buckling analysis cannot be performed. due to possible rigid body mode. FEASIBLE DESIGN (ALL CONSTRAINTS SATISFIED).
*** SOME ERRORS WERE REPORTED DURING THE RUN, *** PLEASE VERIFY RESULTS AS THEY MAY BE INVALID. what might be the issue here, i followed all the steps, still getting the same error. Can you help me with that?
Thats one of the classic errors - should make a video about it. It means your model is not constraint sufficiently or has loose parts which "fly away" under load.
Hey Manuel, thanks for all the great videos they are a really fantastic resource to learn. Do you know if it is possible to use non-linear analysis for topology optimization in HyperWorks? I am asking cause it would be a useful feature for displacement driven designs with big deflections. I personally didn't manage to figure out if it is possible so I thought you might know:) Thanks in advance!
Hey :) As far as I know there is no easy way to do a non linear topology optimization as for those topology optimization you need to have derivatives which would be very computationally costly if you would have it in a non linear subcase (each derivative would cause multiple function calls and the validity is limited as it is a linerization) It depends on which non-linearity you are referring to. But the basic saying is - optimization of topology with optistruct - only linear (to my knowledge)
@@ManuelRamsaier Yes, I thought that would not be easy. Thank you for replying, I really appreciate it. Good luck with all of your projects and I am looking forward to watching more of your videos. Cheers
Brilliant video. Do you have a video that details optimisation for a frequency response or modal run in addition to multiple static design cases? Also, do you have a video on geometry export of the optimised structure shape?
both are good topics. There is a video about a frequency response optimization. Geometry export there are multiple options so its difficult to squeze them into one video. But I think I covered OSSmooth in one video. Best regards
Good stuff. Thanks for the video! A small correction, in the opening slide, below the heading, it reads "Part 3: Topology Optimization". I believe it should be part 2, no?
Part 2 was Hyperview which was included in the "Hypermesh FEM Model and Hyperview Tutorial" Video at around 17:29. So my intention was: - Part1: Preprocessing in Hypermesh - Part2: First Run and Post Processing the Analysis - Part3: Topology Optimization Hope this helps :)
![Free Shape Optimization using Hypermesh [Optistruct Tutorial]](http://i.ytimg.com/vi/Kmao6y3Sew8/mqdefault.jpg)
thank you sir for great help.
Thank you for the positive feedback :)
@@ManuelRamsaier it would be great if you can make video of lattice optimization in this model. thank you for your reply
Hey Manuel, what if, the error showing
*** ERROR # 312 ***
In static load case 1
the compliance is negative or large 8.71101e+17.
Optimization/buckling analysis cannot be performed.
due to possible rigid body mode.
FEASIBLE DESIGN (ALL CONSTRAINTS SATISFIED).
*** SOME ERRORS WERE REPORTED DURING THE RUN,
*** PLEASE VERIFY RESULTS AS THEY MAY BE INVALID.
what might be the issue here, i followed all the steps, still getting the same error. Can you help me with that?
Thats one of the classic errors - should make a video about it. It means your model is not constraint sufficiently or has loose parts which "fly away" under load.
Thank you sir.
You're welcome
Hey Manuel, thanks for all the great videos they are a really fantastic resource to learn.
Do you know if it is possible to use non-linear analysis for topology optimization in HyperWorks? I am asking cause it would be a useful feature for displacement driven designs with big deflections. I personally didn't manage to figure out if it is possible so I thought you might know:) Thanks in advance!
Hey :) As far as I know there is no easy way to do a non linear topology optimization as for those topology optimization you need to have derivatives which would be very computationally costly if you would have it in a non linear subcase (each derivative would cause multiple function calls and the validity is limited as it is a linerization)
It depends on which non-linearity you are referring to. But the basic saying is - optimization of topology with optistruct - only linear (to my knowledge)
@@ManuelRamsaier Yes, I thought that would not be easy. Thank you for replying, I really appreciate it. Good luck with all of your projects and I am looking forward to watching more of your videos.
Cheers
Brilliant video. Do you have a video that details optimisation for a frequency response or modal run in addition to multiple static design cases?
Also, do you have a video on geometry export of the optimised structure shape?
both are good topics. There is a video about a frequency response optimization. Geometry export there are multiple options so its difficult to squeze them into one video. But I think I covered OSSmooth in one video.
Best regards
@@ManuelRamsaier thanks alot. I will check out you videos. Thanks again for sharing this great content
@@beefybeef1326 Thank you :)
@@ManuelRamsaier i found your video... but its in German. Im sure its good content, but i dont speak German 😂
Thanks again for your help
Good stuff. Thanks for the video!
A small correction, in the opening slide, below the heading, it reads "Part 3: Topology Optimization". I believe it should be part 2, no?
Part 2 was Hyperview which was included in the "Hypermesh FEM Model and Hyperview Tutorial" Video at around 17:29.
So my intention was:
- Part1: Preprocessing in Hypermesh
- Part2: First Run and Post Processing the Analysis
- Part3: Topology Optimization
Hope this helps :)
I have been using a lot of alt air softwares and I need a assistance as i frequently face errors, is there a way we can contact you for help
sure, just write me an email to ramsaier@rwu.de 😀