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  1. 2 points
    tinh

    Solid face selection panel

    Hi Vipin try ::hwtk::pa::Area::multiCollectorEditor12 OnYellow
  2. 1 point
    reinerh

    Antenna Pattern from CST to WinProp

    CST can export the antenna pattern in the WinProp ASCII .apa format.
  3. 1 point
    Hi @samus970 Please use the Summary option in Post Page to get details of Center of Gravity.
  4. 1 point
    Prakash Pagadala

    Error 402 FRF analysis

    Hi @Tachs77 Can you share an image of FREQ1 card you have in your model? Looks like the number of increments you have is zero on the card.
  5. 1 point
    Ivan

    ERROR ID : 611 on radioss solver

    Hi, you should remove all penetrations and intersections before running the simulation, otherwise the model could show unphysical behaviour. Check and remove manually or automatically any initial penetration in your model by using Tool>> Penetration or in Hypercrash by Quality>>Check all solver interfaces. You can go through HM-3320: Penetration tutorial in Help Menu which shows fixing penetrations. If penetrations and intersections are not resolved completely , you can use Inacti= 5 or 6.
  6. 1 point
    tinh

    Page Height and width setting

    Hello Vikas below last line will return original size, so you can remember them and restore graphic size later proc p_SetGraphicArea {Width Height} { set gframe .mainFrame.center.f3.center_frm.graphicfrm set pinfo [pack info $gframe] set pmaster [dict get $pinfo -in] set pmasterH [winfo height $pmaster] set pmasterW [winfo width $pmaster] set padX [expr ($pmasterW-$Width)/2] set padY [expr ($pmasterH-$Height)/2] set padX [expr $padX<0?0:$padX] set padY [expr $padY<0?0:$padY] pack configure $gframe -padx $padX -pady $padY list $pmasterW $pmasterH } example: # change graphic size to (200,100) set OriginalSize [p_SetGraphicArea 200 100] # do something with graphic image... ... ... #change graphic size to original: eval p_SetGraphicArea $OriginalSize
  7. 1 point
    tinh

    Page Height and width setting

    Hi, we will add paddings to its frame: proc p_SetGraphicArea {Width Height} { set gframe .mainFrame.center.f3.center_frm.graphicfrm set pinfo [pack info $gframe] set pmaster [dict get $pinfo -in] set pmasterH [winfo height $pmaster] set pmasterW [winfo width $pmaster] set padX [expr ($pmasterW-$Width)/2] set padY [expr ($pmasterH-$Height)/2] set padX [expr $padX<0?0:$padX] set padY [expr $padY<0?0:$padY] pack configure $gframe -padx $padX -pady $padY }
  8. 1 point
    etrud011

    Optimization with stress constraint?

    For topology optimization the stress constraint is considered to be a global constraint that only takes into account elements with relative density equal to one. When elements have densities lower than one, the constraint is turned off for those elements. This is because you cannot calculate the stress for elements that have had their local stiffness matrices penalized (SIMP). If a a single stress constraint is imposed on your model, the end result may have only a few elements that have a relative density equal to one. Because of the nature of gradient descent methods used in hypermesh/optistruct, this will lead you to poor results. If you want to do a stress constrained optimization with mass minimization you will need to consider a different optimization algorithm. Stress constraint in combination with other constraints such as displacements, volume fraction or member size control is a suggested practice (in hypermesh). Hope this helps, -Eric
  9. 1 point
    mvogel

    MIMO Mode Settings

    I believe MIMO is used for Spatial Multiplexing. The details of the diversity are captured in a parameter you define for interference between MIMO streams. This can be found under Project / Edit Project Parameter / Network tab --> MIMO Technology --> Settings. You had already found this parameter and others. You also define the number of MIMO streams and you define explicitly the individual transmitting antennas and their patterns (including polarization). At the receiver side, it is assumed that {number of receiver antennas} = {number of MIMO streams}. I hope this helps a bit.
  10. 1 point
    MvdM

    Fem buffer space

    Hi Kartik I had a quick look at your model. Adding airboxes should resolve these errors. You have both FEM and MoM regions in the model. The horn is excited by a FEM modal port, the waveguide part is set to FEM and meshed into FEM tetrahedra. No solution is set on the horn flare, so this is solved by the default MoM solver (surface mesh). The MoM region on the inside of the chamber connects directly to the absorber FEM regions of the absorbers and lacks an airbox. There are also metallic (Iron) faces on the boundary of a FEM region. This is not allowed on the boundary (the outside of) a FEM region. These faces can be modelled when inside a FEM region (could be air). Here is an example of an airbox from the FEKO Example Guide (example A12, DRA_Finite_Modal.cfx): The pink shows a layer of air (free space) that is added around the dark blue FEM region (not free space). A union is created to ensure connectivity and correct meshing of these layers.
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