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    • Rahul Ponginan

      Please click here for a short but important announcement   03/26/17

      Dear Users Our Commercial and Academic users around the world can use these same forums here as before i.e. the Altair Support Forum , Commercial users from India with solver queries can go to the Solver Forum for India Commercial Users , Academic Users from India and AOC India Participants are requested to go to the Forum for India Academic Users and AOC India Participants , We will be tending to all queries in all the forums promptly as before, thank you for your understanding. 

Naveen Raj

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About Naveen Raj

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  1. Acusolve query

    Thank you for the reply. Model is equivalenced. No duplicate elements/surfaces No free edges too. Still getting duplicate surfaces in acu-console
  2. Acusolve query

    Hi all, I am Naveen Raj. I am facing some problems when doing flow analysis for wheels in Acu-solve I am getting duplicate surfaces when model is imported into acu-console Imported file type is .nas type
  3. Radioss 140

    Hi Mr.Johnson, In the attached image, floor mass of 6ton is applied on the tire Spring properties were given for tire, stiffness value calculated from load vs displacement curve Imposed displacement of 212 mm applied to the floor Analysis is done for no inflation. Stress is not being transformed from tire to disc same done for tire inflated condition getting stress distribution from tire to rim (ex - 4barsi inflation pressure) Is any changed required in tire stiffness property? Floor to tyre contact is given type 7 contact Should any change to be done for floor - tyre contact stiffness Regards, Naveen
  4. Tyre Assembly Analysis

    Hi, Any clarification on this query?
  5. Tyre Assembly Analysis

    Hi Mr.Gopal, Thank you for the reply Can be done in transient. We are planning to do in optistruct. Steel property defined for wheel. Rubber property to be defined for tire What material card can be defined for rubber property in optistruct (Suggest us in material card and basic properties) Load is given using rigid element at disc centre Contact between ground and tyre defined(need clarification on defining contacts) Image attached for your reference
  6. Tyre Assembly Analysis

    Any update on the above query?
  7. Tyre Assembly Analysis

    Hi Johnson, Kindly find the image sent to you in drop box Wheel with tyre assembly is given load at center by using rigid element Ground defined as shown in the image. Contact defined between tyre & Ground How this type of analysis can be done in optistruct
  8. Radioss 140

    Hi Johnson, Thanks for the clarification provided How imposed displacement can be given in RADIOSS Is there any tutorial/example for giving imposed displacement
  9. Radioss 140

    Hi Johnson, Thanks for clarification. Will carry out analysis as per your suggestion and will revertt
  10. Radioss 140

    Hi Mr.Johnson, Sure file has been shared. Control volume defined to introduce inflation pressure effect (Control volume created as "SURF") Pressure load given by creating contact surface Getting error as "Rupture of shell element"
  11. Radioss 140

    Hi Mr.Johnson, Yes for steel M36 plas john material i defined (Eps_max) 1e30. Default value fore that card
  12. Radioss 140

    Hi Mr.Johnson, I have not defined any interface. I created equivalence between nodes. Gave pressure by creating contact surface. Getting elenet rupture though sigma max is set @ 500 MPa. why this occurs?
  13. Radioss 140

    Hi johnson, Thanks for the clarification When giving pressure load in block 140 getting error as "rupture of shell element" How pressure load can be given in block 140 & how the error can be avoided?
  14. Radioss 140

    Hi Johnson, Tried with element type to quad4N. radioss file which i sent you is with quad4N element type Error i am getting is Error in input consistency" "Quad are not compatible with N2D3D=0" Kindly assist in solving this issue
  15. Radioss 140

    Hi Johnson, Analysis flags not defined. Attached radioss files for your reference Refer the file and clarify my query pls
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