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felipeds

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About felipeds

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  1. Hi guys, I need open a .modfem file in hypermesh, however the nastran profile not open the file. Somebody can help me? Thanks
  2. Hy guys I need to calculate the structural stiffness of a component. Which type of analysis can find the answers I seek? maybe frequency resp. (modal)? Thanks
  3. Hy guys I need to calculate the structural stiffness of a component. Which type of analysis can find the answers I seek? maybe frequency resp. (modal)? Thanks
  4. Hi guys, Its build a force versus displacement graph in RADIOSS to an impact analysis? Thanks
  5. It's very easy. Thanks Q.NGUYEN-DAI
  6. Hi folks, I need to create holes in my shell geometry in hypermesh. It is possible? thanks
  7. Hi guys I'm doing an impact assessment and I'm using spotweld to join the bodies. But do not know how to fix this error unless rebuilding the whole model again. Can anyone help me? Thank you ERROR id : 47 ** ERROR IN RIVET DEFINITION (MASS) ONE OR BOTH OF THE TWO NODES OF RIVET 55039 HAVE A NULL MASS (MAY BE SLAVE NODE(S) OF A RIGID BODY) modo_16_5_0000.txt
  8. Hi guys, I need to export .stl geometry file from hypermesh for a new drawing in catia v5. The stl file was generated from a topology optimization. Thanks
  9. Hi Prakash Pagadala The way you gave me to solve the problem resolved. But I changed the card to Inact = 2, (deactivation of stiffness on elements) because the tool penetration indicated that the component elements were who were suffering penetration. Thanks Additionally, I wanted to take advantage and ask you for help on this error that I had not realized: ERROR id : 47 ** ERROR IN RIVET DEFINITION (MASS) ONE OR BOTH OF THE TWO NODES OF RIVET 183138 HAVE A NULL MASS (MAY BE SLAVE NODE(S) OF A RIGID BODY)
  10. Hy guys I am performing an analysis of impact in RADIOSS and this error appears: ERROR IN INITIAL PENETRATION IN INTERFACE The .out file is attached. Somebody can help me? Thanks m45-3_0000.txt
  11. I'm doing an optimization where I put the response as DRESP1 massfrac. In dconstraints, selected lower bound = 0,6 and upper bound = 0,7 and the following error appears in the solver: *** ERROR # 2150 *** Invalid Volume or Mass Constraint. The response type is the total MASSFRAC the upper bound value = 7.000000E-01 the total volume = 1.805255E+05 the design volume = 1.660834E+04 the total mass = 1.426151E-03 the design mass = 1.312059E-04 The design material fraction (percent) should be at least 3 times the DOPTPRM MINDENS (default 0.01) Solver FAILED optistruct:: Solver run finished. Could anyone help me? Thanks
  12. I'm doing an optimization where I put the response as DRESP1 massfrac. In dconstraints, selected lower bound = 0,6 and upper bound = 0,7 and the following error appears in the solver: *** ERROR # 2150 *** Invalid Volume or Mass Constraint. The response type is the total MASSFRAC the upper bound value = 7.000000E-01 the total volume = 1.805255E+05 the design volume = 1.660834E+04 the total mass = 1.426151E-03 the design mass = 1.312059E-04 The design material fraction (percent) should be at least 3 times the DOPTPRM MINDENS (default 0.01) Solver FAILED optistruct:: Solver run finished. Could anyone help me? Thanks
  13. Thank you Prakash Pagadala I made the second path that you indicated and it worked.
  14. Hi guys, This error appears when I run a simulation of the impact RADIOSS. I am sending herewith the .out file Could anyone help me? Thank you ** ERROR SURFACE BUILD FROM SOLIDS PART NON AVAILABLE OPTION /SURF/PART/Surf_ID FOR CREATING SURFACE 6 FROM A PART OF SOLIDS ; USE /SURF/PART/EXT/Surf_ID or /SURF/PART/ALL/Surf_ID crash_box_M45_0000.txt
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