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  1. 3 likes
    Oh, are you consuming your time to fiddle with tkconsole? change cursor color: .tkcon.tab1 configure -insertbackground red
  2. 3 likes
    Please try to do this process and add your systems and add your data from data sets MotionView>Models>Assembly Wizard>Front end of Vehicle. Select your assembly and try to create your model
  3. 3 likes
    Hi Nithish, This error shows that the dependent DOF has been selected in the independent DOF too. Delete the dependent DOF from the independent DOF list and run the analysis. UseTools-> check elems->1-D rigid loops and dependency (check including independent nodes). This will help to figure the 1-D elements that share a node (dependent or independent)are considered to fail the check.
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    Figured it out! #Prompt user to pick node *createmarkpanel nodes 1 "Please select Node" set BNode [hm_getmark nodes 1] set Z_Node [hm_getentityvalue NODE $BNode "z" 0]
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    Hi Richard, For the part sets created, create configurations and group part sets in the configurations and enable the configuration. Then all of the parts, part assemblies, components, and part sets not associated with that configuration become inactive. A tutorial on the same is available in Help Menu and the same is attached for reference. HM-3440.pdf
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    Press O keyboar to go to option panel, then choose mesh panel, choose node tolerance = 0.1.
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    Try this code: *createentity comps cardimage=HM_COMP name=NewComp hm_createmark elems 1 "by comp name" "OldComp" *copymark elements 1 "NewComp"
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    If your requirement is to define stiffness in more than one direction. 1. By creating as many CELAS elements as the desired number of directional stiffness 2. By simply creating CBUSH elements where you can define 6 directional stiffness The model with CBUSH should be simpler and work properly.
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    Hi, regarding to OS reference guide: - Dof (C1, C2) : dof in disp coordinate system (CD field of GRID) normally CD=0 so dof3 means stiffness follows z-direction of basic coord system to set celas follows an optional direction, create a system and assign it as "disp system" of nodes of celas
  11. 2 likes
    The languages used by Sl are Javascript and Python. After starting the recording process, you are asked which language you want to use. While recording the process, please select groups of entities so that you can re-run the process on other models using the same groups (and body) names. Check the section SCRIPTING in the SimLab Help for more information.
  12. 2 likes
    A revolute joint is a one-degree-of-freedom kinematic pair used in mechanisms. Revolute joints provide single-axis rotation function used in many places such as door hinges, folding mechanisms, and other uni-axial rotation devices.
  13. 2 likes
    Rithvik, it is easy to change these parameters just follow the steps and refer attached images(images are example to explain, you can do similar process with your model) go to Project browser> system of suspension > Data Sets > Vehicle Input parameters. And Enter your calculated or measured values.
  14. 2 likes
    Dear All, You can refer to attached document which contains Tutorials ( Model Files + Process PDF ) for 1. Hyper Mesh for FE Modelling 2. OptiStruct as solver for a. Analysis b. Optimization 3. Radioss as solver for NL Analysis Students can solve these tutorials & can ask their query on the forum itself. AOC_2017_Practise Models.zip
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    Please Check your dimensions i found some problems in your dimension. Can you share your CAD file?
  17. 2 likes
    Hi, Internal energy is the energy absorbed by the elements during deformation. This is also referred to as strain energy. Hourglass energy is the energy associated with the hourglass mode of element where the element stiffness become zero and tries to come out of simulation. In such scenarios, a force is applied to that particular element to displacement and the work done by that force gives the hourglass energy. This should be not more than 10-15 % of the total energy. This is purely based on shell element formulation. Like if you go to property and edit it you will see, IShell which defines the element formulation. More details for the same is also given in help.
  18. 2 likes
    Hi, In pull down menu or menu bar> Preferences>Mesh option. See attached thumbnail for reference. Regards Rahul R
  19. 1 like
    Hi Narasimhamurthy, I just recreated the Type 2 interface and updated the load. Please try with the model attached. model.zip
  20. 1 like
    Hi, This reply is on behalf of Prakash & Expert. SN curve in OS is based on the stress range. Stress range = 2*amplitude. Looks like Ansys is using amplitude instead of stress range.In future version we will have option to choose between amplitude and range.
  21. 1 like
    Hi Tiago, Select the part from model browser, right click on it, select cross reference. From the cross reference menu, select the part, right click and select edit and uncheck the box for the part is unresolved.
  22. 1 like
    Hi, I see, there is no direct command. but you can do like this: - open ...\hm\bin\win64\globalpage.mac to edit - looking for macro definition " *beginmacro(macroSetActivePage) ", and add a command inside it: *beginmacro(macroSetActivePage) //Purpose: Sets the active page in the macro meu to passed argument. *setactivepage($1) //add below command to customize your own page by tcl: *evaltclstring("p_ShowMyUserPage $1",0) *endmacro() - define tcl procedure "p_ShowMyUserPage" in a tcl file and source it first or define it in ...\hm\bin\win64\hmcustom.tcl (will be sourced whenever opening hm) proc p_ShowMyUserPage {Page} { if {$Page!=5} {catch {place forget .frmUserPage}; return} if {![winfo exists .frmUserPage]} { frame .frmUserPage pack [::ttk::button .frmUserPage.btnDemo -text Demo \ -command {tk_messageBox -message "This is a demo"}] #add your buttons here\ ..... } set frmUserMac [winfo children [hm_winfo utilitywindow]] set y [expr [winfo height $frmUserMac]-200] place .frmUserPage -in $frmUserMac -x 0 -y $y } - now click Utility>User button, it will invoke p_ShowMyUserPage with Page=5 and show your buttons
  23. 1 like
    Hi Yousif, I see element id 1 was the reason for patchy and unclear results(it was through from one end to another end).Just delete & rerun.PFA displacement plot for FYR.
  24. 1 like
    Hi, variables in tcl script seem to be not available in macro file I think you don't need to use macro file, because all of its functions can be (and will be) done by tcl example buttongroup, button in macro file => are tk buttons macro commands in macro file => are same as hypermesh tcl commands you can use tcl script to retrieve / add / remove buttons with your own procs to utility tab example set frmUtilTab [hm_winfo utilitywindow] set frmMacros [winfo children $frmUtilTab] set WMgr [winfo manager $frmMacros] set WMgrOptions [$WMgr info $frmMacros] set frmMyUtils [frame .frmMyUtils] pack $frmMyUtils -in $frmUtilTab -fill both -expand 1 set btnDemo [::ttk::button $frmMyUtils.btnDemo -text Hello -command {tk_messageBox -message "This is a demo"}] pack $btnDemo -anchor center #if you want to restore original utility functions as in macro file: pack forget $frmMyUtils eval $WMgr $WMgrOptions
  25. 1 like
    Hello dhaval, please Check the below steps for cylindrical joint Step : 1 Create point> Create Body> Create joints > Create Motion Step : 2 In motion option select joint and go to property and give proper expression for motion and try to run your model.
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    The certificate will be provided as downloadable pdf, it can be used in profiles or resumes We cannot guarantee the skill level of a certificate holder, however we can confirm if a certificate is genuine or not and also if it was actually received by the holder after taking the course using the alphanumeric key in the certificate,
  28. 1 like
    Download Training materials for AOC 2017 for CAE/CFD/MBD Link: http://www.altair-india.com/aoc/training-material And Let us Know if you have any Technical Query
  29. 1 like
    Hello Ankit, For Baja-Supra event we have separate Templates. There are specific Vehicle (Formula one and ATV-baja) so we have given flexibility to change specific parameters based on student's requirements, but from assembly wizard you can simulate many combinations. So you have to edit manually into points,body and Joints values to edit specific parameters.
  30. 1 like
    Hi Hanif, Many benchmarks were done in RADIOSS and has shown the consistency of results. If the model set up is correct the results will remain consistent. Please check and ensure that the material parameters, boundary conditions, load cases...etc are all same.
  31. 1 like
    Hi Umang, You can use PBUSH elements to model joints and can include stiffness and damping for PBUSH elements. Please note: if you are a commercial customer, you can contact your local support @ http://www.altairhyp...ortProduct.aspx
  32. 1 like
    Thanks @alpha . node tolerance seems to be a very sensitive setting, once it affects to @vectorlookup, too
  33. 1 like
    Dear bobo44 In the image you attached the top and bottom cubes appear to be orange which is the colour of PEC in FEKO. If these cubes have their Regions set to be a dielectric with the permittivity of free space, then please ensure that the bounding Faces are set to be "Dielectric boundary" and not PEC. Additionally, if you only have dielectric layers in your model, you might consider using the (2D infinite) "planar multilayer substrate" option for modeling this. Regards, Johan H
  34. 1 like
    Hi Tyler, Related scripts for finding the centroid of a hole are also available in the Resource Library. You can access them at https://connect.altair.com/CP/script-list.html Please sign up in the webpage mentioned and download the script.
  35. 1 like
    The RBE2 element defines a rigid body with independent degrees-of-freedom that are specified at a single grid point and with dependent degrees-of-freedom that are specified at an arbitrary number of grid points. The first grid listed on the RBE2 is the independent grid point and all 6 degrees of freedom are used. The CM field is used to specify the components of the following dependent grids. For RBE2 the constraint DOF’s will be transferred from independent node(Master) to dependent node/s (Slave).
  36. 1 like
    Hello tinh, sorry for the late reply. Your tip was spot on, thank you very much. best regards
  37. 1 like
    @GonPer Do you have Ply balance constraint on your laminate? If yes can you remove the same and try again?
  38. 1 like
    Hello Bobo, I think there is a misunderstanding with respect to what you want to calculate vs. what you are requesting from FEKO. The TR (transmission reflection) coefficients are for calculating reflections from surfaces. That means that you either need to define a 2D periodic structure (PBC) or have an infinite ground definition in your model. What you are trying to calculate is probably monostatic or bistatic RCS, correct? To calculate that, you simply need a plane wave source and a far field request. If you are interested in the scattered near field, you can add near field requests to your model [it is possible to calculate either the total field (default) or just the scattered part]. I hope this helps!
  39. 1 like
    That means your script has bug Actually, I don't know how to assign property to a node. If you have problem with your script then show it here. We will debug it easily
  40. 1 like
    Hello Bobo, the error that you should be seeing is: Reflection/transmission can only be computed for 2D periodic boundaries or planar Green's function This is a limitation on the Reflection/transmission request: either you must use periodic boundary conditions or the planar Green's function. However, it is does not support general 3D structures without either of these 2 options. Regards, Peter
  41. 1 like
    Hi tinh, All these information is usefull for me. Thank you again.
  42. 1 like
    Hi, how is the command: press F10 - 3D - "length <" ? you can find it in ...\documents\command.tcl
  43. 1 like
    Hi, if a list is not existing, generate it: set ListConfigType {} foreach Config {tria3 quad4 tetra4 penta6 hex8} { set TypeIDs [hm_entityinfo configtypeids elems $Config] puts "$Config:\t$TypeIDs" dict set ListConfigType $Config $TypeIDs }
  44. 1 like
    Hi, You can control the timestep in RADIOSS using /DT/NODA/CST card in the engine file. The user has to specify Tmin, which is the target time step. And Tsca, which is 0.9. Please refer the video for timestep control in Radioss Explicit: https://altair-2.wistia.com/medias/o0bfml9ah5
  45. 1 like
    I did not see the problem in v14.0 after ticking checkbox "export in extended format" , turn to model browser, did you see a card named "EXTENDED" ? If you don't see it, enter panel Analysis>control cards => click on "extended" card
  46. 1 like
    Thanks George. Basically my purpose is to aware the designer about CAE not to make them learn how CAE works.I mean I have to tell them why we carry out CAE and basic things a designer should know before putting request to CAE, what he will get through CAE. In simple if I will ask you why one should buy Hypersuite then what would be your answer?
  47. 1 like
    Hi, Yes if the model barrier is rigid, it will have zero internal energy as deformation is not possible. Contact energy is not a physical energy of the system, it is the basically the energy spent by enabling a contact force to avoid penetration. Contact energy = contact force*distance moved to avoid penetration. This should be minimal and can be around 0-5 % of total energy. Any springs also modelled in simulation, if yes how the spring energy varies? Also is the internal energy became equal to the input energy or it is less?
  48. 1 like
    what material you are using? Enter yield strength of material in Limit1 of MATS1 card.
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  50. 1 like
    Yes, ofcourse Linear Static does not take into account the contact - it is nonlinear, generally all nonlinearity affects including: - material nonlinearity: stress is above yield point - geometric nonlinearity: stiffness matrix sensitive with geometry deformation - boundary nonlinearity: contact And also "static" means no dynamic affect can be captured, so every loads must be applied slowly