General Mechanical

General Mechanical

Can not figure out why the radiation boundaries are not working.

    • Quantumfreak
      Subscriber
      Hello, I have been working on the start of my senior design project in designing a full thermal analsys of a cubesat in LEO. I have built an enclosure which simulates the conditions of the inner solar system up to the earth. I have put in temperature and radiation boundaries into the model but I cannot figure out why im getting an issue with the space node. I am working in APDL from the ground up. Heres a macro for my enclosure and thermal boundaries, both can be opened in notepad. Thanks to anyone who can help out in any way!nenclosure: n/PREP7 n!* nET,1,SOLID90n!*n!* n!* n!* nMPTEMP,,,,,,,, nMPTEMP,1,0 nMPDATA,KXX,1,,1e12 nMPTEMP,,,,,,,, nMPTEMP,1,0 nMPDATA,EMIS,1,,1nMPTEMP,,,,,,,, nMPTEMP,1,0 nMPDATA,KXX,2,,1e-12 nMPTEMP,,,,,,,, nMPTEMP,1,0 nMPDATA,EMIS,2,,1nMPTEMP,,,,,,,, nMPTEMP,1,0 nMPDATA,KXX,3,,138 nMPTEMP,,,,,,,, nMPTEMP,1,0 nMPDATA,EMIS,3,,.77 nBLOCK,-214.937,214.937,-214.937,214.937,-214.937,214.937, nBLOCK,-214.837,214.837,-214.837,214.837,-214.837,214.837, nVSBV, 1, 2 nnumcmp,all nCYL4,0,0,1.05, , , ,.1 nFLST,3,1,6,ORDE,1 nFITEM,3,2 nVGEN, ,P51X, , ,0,0,214.837, , ,1 nVSBV, 1, 2 nnumcmp,all nCYL4,0,0,1.05, ,1, ,.1 nFLST,3,1,6,ORDE,1 nFITEM,3,2 nVGEN, ,P51X, , ,0,0,214.837, , ,1 n/USER, 1 nCYL4,0,0,1, , , ,.1 nFLST,3,1,6,ORDE,1 nFITEM,3,3 nVGEN, ,P51X, , ,0,0,214.837, , ,1 nn!VERIFICATION 2 PLATES HEREnBLOCK,-.0985,.0985,-.0485,.0485,0,.0016,nBLOCK,-0.0985,0.0985,-0.0485,0.0485,-.0016,-0.0032,nn!MATERIAL PROPERTIES TO VOLUMESnFLST,5,2,6,ORDE,2 nFITEM,5,1 nFITEM,5,3 nCM,_Y,VOLU nVSEL, , , ,P51X nCM,_Y1,VOLU nCMSEL,S,_Y n!* nCMSEL,S,_Y1 nVATT, 1, , 1, 0 nCMSEL,S,_Y nCMDELE,_Y nCMDELE,_Y1 n!* nCM,_Y,VOLU nVSEL, , , , 2 nCM,_Y1,VOLU nCMSEL,S,_Y n!* nCMSEL,S,_Y1 nVATT, 2, , 1, 0 nCMSEL,S,_Y nCMDELE,_Y nCMDELE,_Y1 n!* nFLST,5,2,6,ORDE,2 nFITEM,5,4 nFITEM,5,-5 nCM,_Y,VOLU nVSEL, , , ,P51X nCM,_Y1,VOLU nCMSEL,S,_Y n!* nCMSEL,S,_Y1 nVATT, 3, , 1, 0 nCMSEL,S,_Y nCMDELE,_Y nCMDELE,_Y1 n!* !JAGSAT BUILDING MACRO GOES HERE!MESHINGnnFLST,5,16,4,ORDE,10 nFITEM,5,27 nFITEM,5,-30 nFITEM,5,37 nFITEM,5,-40 nFITEM,5,43 nFITEM,5,-44 nFITEM,5,49 nFITEM,5,-50 nFITEM,5,57 nFITEM,5,-60 nCM,_Y,LINE nLSEL, , , ,P51X nCM,_Y1,LINE nCMSEL,,_Y n!* nLESIZE,_Y1, , ,15, , , , ,0 n!* nFLST,5,16,4,ORDE,14 nFITEM,5,25 nFITEM,5,-26 nFITEM,5,31 nFITEM,5,-32 nFITEM,5,35 nFITEM,5,-36 nFITEM,5,41 nFITEM,5,-42 nFITEM,5,45 nFITEM,5,-48 nFITEM,5,55 nFITEM,5,-56 nFITEM,5,61 nFITEM,5,-62 nCM,_Y,LINE nLSEL, , , ,P51X nCM,_Y1,LINE nCMSEL,,_Y n!* nLESIZE,_Y1, , ,15, , , , ,0 n!* nnFLST,5,8,4,ORDE,8 nFITEM,5,65 nFITEM,5,67 nFITEM,5,70 nFITEM,5,72 nFITEM,5,77 nFITEM,5,79 nFITEM,5,82 nFITEM,5,84 nCM,_Y,LINE nLSEL, , , ,P51X nCM,_Y1,LINE nCMSEL,,_Y n!* nLESIZE,_Y1, , ,5, , , , ,0 n!* nFLST,5,8,4,ORDE,8 nFITEM,5,66 nFITEM,5,68 nFITEM,5,-69 nFITEM,5,71 nFITEM,5,78 nFITEM,5,80 nFITEM,5,-81 nFITEM,5,83 nCM,_Y,LINE nLSEL, , , ,P51X nCM,_Y1,LINE nCMSEL,,_Y n!* nLESIZE,_Y1, , ,10, , , , ,0 n!* nFLST,5,4,4,ORDE,2 nFITEM,5,73 nFITEM,5,-76 nCM,_Y,LINE nLSEL, , , ,P51X nCM,_Y1,LINE nCMSEL,,_Y n!* nLESIZE,_Y1, , ,1, , , , ,0 n!* nFLST,5,4,4,ORDE,2 nFITEM,5,85 nFITEM,5,-88 nCM,_Y,LINE nLSEL, , , ,P51X nCM,_Y1,LINE nCMSEL,,_Y n!* nLESIZE,_Y1, , ,1, , , , ,0 n!* nFLST,5,24,4,ORDE,2 nFITEM,5,1 nFITEM,5,-24 nCM,_Y,LINE nLSEL, , , ,P51X nCM,_Y1,LINE nCMSEL,,_Y n!* nLESIZE,_Y1, , ,7, , , , ,0 n!* nMSHKEY,0nMSHAPE,1,3d nFLST,5,3,6,ORDE,2 nFITEM,5,1 nFITEM,5,-3 nCM,_Y,VOLU nVSEL, , , ,P51X nCM,_Y1,VOLU nnCHKMSH,'VOLU' nCMSEL,S,_Y n!* nVMESH,_Y1 n!* nCMDELE,_Y nCMDELE,_Y1 nCMDELE,_Y2 n!*nFLST,5,2,6,ORDE,2 nFITEM,5,4 nFITEM,5,-5 nCM,_Y,VOLU nVSEL, , , ,P51X nCM,_Y1,VOLU nCHKMSH,'VOLU' nCMSEL,S,_Y n!* n!* nVCLEAR,_Y1 nMSHAPE,0,3d nMSHKEY,1nVMESH,_Y1 nMSHKEY,0n!* nCMDELE,_Y nCMDELE,_Y1 nCMDELE,_Y2 n!* nn!PUT THERMAL/RADIATION BOUNDARY CONDITIONS HERE WHEN THE NEXT MACRO IS BUILTnn
    • Quantumfreak
      Subscriber
      n
    • Kai
      Ansys Employee
      Ansys employees are not allowed to download or run your model. What error message did you get when running the script?n
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