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iwinphilip

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About iwinphilip

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    Beginner

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  • Country
    Australia
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    Yes
  1. Hi, I do have a doubt why does it show " No closed volume found " even though i checked everything and all lines are intact. Iwin2.iges
  2. Hi Ivan, Thanks, Now I understood how the volume optimization works. I tried out and i get the result all the parameters have been satisfied but when I look at the iterations its all the same. I have attached a photo of it and also the file named "spanner1". Could you let me know why i don't get an optimized model. spanner1.hm
  3. Hi Ivan Thanks I will try it out and let you know and any other error in the model and optimization you found out. Plus does the .fem file open in hyper works.
  4. Hi Ivan I created another model and tried to run but when i run i still get the same error. (all units are in N, mm, tonne, MPa.) *** ERROR # 2150 *** Invalid Volume or Mass Constraint. The response type is the total VOLUME. the upper bound value = 3.6295e+004 the total volume = 1.2098e+005 the design volume = 8.6894e+004 the total mass = 9.0737e-004 the design mass = 6.5171e-004 The design material fraction (percent) should be at least 3 times the DOPTPRM MINDENS (default 0.01). So I did calculate manually Non-Design Value = the total volume - the design volume = 1.2098e+005 - 8.6894e+004 = 34086 which is less than the the upper bound value = 3.6295e+004. Formulation for volume fraction: Volume fraction = (total volume at current iteration – initial non-design volume)/initial design volume I took 30% of volume as upper bound Volume fraction = (3.6295e+004 - 34086)/1.2098e+005 = 0.01825 Could you correct me if i am wrong in my calculation with an example and point out where I had made the mistake and if such mistake occurs in the future how to resolve the issue. I have attached the model along with this file. Kindly let me know if I have done any other mistakes. please note this is what I considered moment = 50000n/mm length = 240mm force = moment/length force = 208N Kind Iwin Philip Iwin2.fem Iwin2.iges Sapnner2.hm
  5. how did you edit the volume of the model by using scale (1/10th) depending on load and force. Could you provide the steps and whether this has to be done at the very beginning or later stage. Thanks
  6. Thanks, I am completely new to this software and probably may need a lot of guidance from you.
  7. Hi Ivan Is there any other way i could contact you directly if I need any help Kind regards Iwin
  8. Hi Ivan I guess the file "spanner2_edit.hm" file has not been attached since i cant download it.
  9. Hi Ivan Thanks for the help. Would it be possible if you can share the steps you used for future reference. kind Regards
  10. Hi, I tried optimizing but i am getting an error *** ERROR # 2150 *** Invalid Volume or Mass Constraint. The response type is the total VOLUME. the upper bound value = 2.6100e+006 the total volume = 8.7003e+006 the design volume = 5.1900e+006 the total mass = 6.5252e-002 the design mass = 3.8925e-002 The design material fraction (percent) should be at least 3 times the DOPTPRM MINDENS (default 0.01). Could someone help me solve this error.
  11. Hi, I am a new user to Hypermesh, I am wondering if it is possible to optimize a spanner/wrench in hypermesh software (optistruct) and what would the constraints look like or how to apply one (normally there are no constraints acting on a spanner). I have attached the file along with this post. Any valuable feedback would be welcome. thanks spanner1.hm
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