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

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Found 374 results

  1. Delayed Convection

    Hi All, I have a question involving the HyperMesh preprocessor. I'm trying to run a transient thermal analysis, where there is a consistent base boundary condition, and convection is applied, but only after a delay. I'm having a hard time figuring out how to apply convection partway through the analysis. For example, I'm allowing the part to heat for 25 seconds, and then turning a fan on and blowing on it for the last 25. I have my TLOAD1, TABLED1, SPCD, and SPC collectors for convection, but I can't figure out how to apply this delay. I tried setting the TABLED1 value to 0 for the first 25 seconds, but that just sets temperature to zero I believe. I imagine the DELAY_OPTION would be helpful, but I don't know how. Thanks very much for any help you can provide.
  2. Where are these nodes from?

    Hello, When I selected nodes,more nodes are selected,but I didn't create them.I am curious that where are they from?How can I select the nodes I wanted only?thank you.
  3. Hello Everybody, I'm trying to use SPH Method with Radioss. I would like to determinate the deformation of a box full of water. I've modeled SPH Particles of water as simple cubic and I've used interface type 7 between water and box. Loads: lock of the base of box and gravity load to water particles. The simulation run without error but results are different than expected: pressure is not uniformly distributed becuase particles don't mantain the initial pitch. What is the error? In attach the .hm file. Could someone help me, please? Thanks in advance. prova_acqua.hm
  4. Hello, i just start to use Tcl script on hypermesh. I've a script who create a simple geometry and mesh on hypermesh. And i need to create boundary conditions. with the commande file I've : *startnotehistorystate {Created Force } *createmark nodes 1 1-19 1920-1945 4553-4559 *loadcreateonentity_curve nodes 1 1 1 -0 -0 50 0 0 50 0 0 0 0 0 *endnotehistorystate {Created Force } The problem is that the nodes are not always the ame (depend on my geometry). Can I create boundary conditions without the number of the nodes ? Like with lines ? Something like : *startnotehistorystate {Created Force } *createmark nodes 1 Line 3 *loadcreateonentity_curve nodes 1 1 1 -0 -0 50 0 0 50 0 0 0 0 0 *endnotehistorystate {Created Force } Thanks Sorry i'm really a beginner with TCL.
  5. plot of force for tensile test simulaion

    Hi, I am doing tensile test simulation in hyperworks using imposed velocity load collector, can anyone explain how to get forces in output results.
  6. Hello every body . Do you have experience about seam welding for optistruct . I need some help for tutorial or example how to use seam welding function . Could you please help me ?
  7. Meshing Error

    Hello, I am working on setting up a model for a simple topology optimization and I am consistently running into the same error when trying to form a mesh. I have meshed the entire design space and part of the non-design space but the final solid always results in an error of "1 edges failed nodal setup. Meshing failed". I have not been able to find any information about this error online so far. I have attached a photo of the error message and a photo of my model prior to meshing. The attached model includes the failed mesh as a "tmp" component. Is there an error in my geometry? How would I be able to mesh this final solid? Thanks ComparisonStudyModel.hm
  8. Importing Systems Include File

    Hi, i am working in Hypermesh with Abaqus Standard 3D Template. I try to import a Input file with a reference to a include file with coordinate systems. Incule File looks like: **HMNAME SYSTEMCOL Orient1, 1, 3 *ORIENTATION, NAME = Orient1, DEFINITION = NODES, SYSTEM = RECTANGULAR 3, 1, 2 3,-45.0 I get the following warning: Warning: *ORIENTATION card with DEFINITION= OFFSET TO NODES is not supported in Hypermesh-ABAQUS Resolution: This card would not have read in correctly into Hypermesh. My Question: How can I change the Orientation defintion to get it work in Hypermesh without loosing information about the systems? Thank you.
  9. The tcl command *set_meshedgeparams 0 1 0 does not seem to work in HM 2017 however it works just fine in 14. Is there any reason this could be happening and any way to correct it ? I am trying to use *set_meshedgeparams as a precursor command to *hmmeshspline Are any of the above commands deprecated in HM 2017 ? Thanks. Any help is appreciated.
  10. Skateboard Tutorial

    Hello I'm new to Hyperworks and would like to learn via tutorials, especially Optistuct and Hypermesh for ply and composite analysis and optimisation. I've found a .pdf file and heard about a skateboard tutorial but I can't find the tutorial files anywhere. I'm using Hyperworks 14 (non student edition, I believe). I would be happy if someone could help me with this. Pascal
  11. Hi , I have large amount of nodal temperature loads applied on the model. Is there any way to visualize the temperature load using contour plots in hypermesh. Also , incase of PLOAD cards applied on the elements. Can we visualize applied pressure in hypermesh using contour plots? Thanks in advance. Girish
  12. Hi, i am working on my bachelor thesis at the moment, in which i need to simulate the heat transfer absorbed by a laser. Therefore i want to apply different heat fluxes which overlap and run only for 1 second. After 1 second i want the second heat flux to start and also run for only 1 second. How can i do this? Thanks, Erdinc
  13. Query Node Based on LoadCollector

    Hi, How to export node id based on LoadCollector in .txt file? Thank you Regards, Iron_Man59
  14. Delete sub-layer element

    Dear all: I don't know the reason why there are two layers elements generated in this area. I want to delete the small sub-layer one (The element in Figure 2 is what I want to delete). How can I do that? Thanks~ BR, Yuchi Kang
  15. Exporting Assemblies to Abaqus

    Hi, I am meshing some CAD files, containing different parts, and what I need to do is export these in the Abaqus file format. In order to perform simulations, I need to export from HyperMesh the geometry grouped in parts and instanced in one Assembly, but unfortunately HyperMesh doesn't seem to allow this. In fact, everytime I try, I get Abaqus files that contains only the nodes and the connectivity matrix without the description of parts and assemblies. Help anyone? Thanks in advance
  16. Dear all, I am working as NVH engineer. in our case , we use terta solid mesh. my process : first we will make tria mesh and then we will convert into tetra mesh using ( 3D--> Tetramesh--> tetra mesh --> fixed trais/quads to tetra mesh --> simple pyramid --> create per-volume comps --> create. Then the tetramesh will create in a component vol001 ( name of the newly created component). so i need to delete the 2d mesh component and also again i have to rename the component . so i want to simplify my process. i want to create TETRA MESH (3D) in same component where the TRIA elements (2D) are present. but by deleting the 2D tria elements (automatically) during the tetra-mesh conversation process. ??? IS THIS POSSIBLE ? please give your suggestion. so that i can save some time. becoz for every item i need to rename for more than 50 components. thank you.
  17. Hi All There's an option to change BC icon size in Hypermesh, but nothing like that for load. Where should I change the load vector size with respect to my model?
  18. Solid Mapping

    I would like to request your help to solidmap this ''hm'', i tried to trim it but in the last volume allways appears non-mappable. Can you help me? And explain me why appears this error? V0.hm
  19. Hello everybody, i followed the guide OS-1090 for linear transient heat transfer but instead of using a constant value for the heat flux i want to use a gaussian distribution. How can i apply that in optistruct? Regards, Erdinc
  20. applying a distributed flux

    Hello everybody, i followed the guide OS-1090 for linear transient heat transfer but instead of using a constant value for the heat flux i want to use a gaussian distribution. How can i apply that in optistruct? Regards, Erdinc
  21. Contact Force in HyperMesh

    Hello, I'm using HyperMesh and Abacus 3D Contact Solver in my project. This is a FEA Contact Simulations of two mating terminals, as shown below. Basically, terminal 1 will insert and withdraw during the mating process and terminal 2 was fixed at the right surfaces. I would like to plot the contact force between the two terminals during the insert/withdraw process. However, it is not available in HyperView. Can anyone help?
  22. How to apply time varying pressure load in radioss ?I wanted to apply a load on a surface which is time varying in nature.For the same i am applying in the form of pressure how to apply and what points need to take care ?
  23. How should i get these X1, X2 and X3 values for a selected node in the image. If i use hm_nodevalue $node_id It returns me X,Y,Z values as per WCS. But what i want is to get as shown in this window. Or may be if i can get local CSYS reference axis.
  24. Application of MBDEACT

    Hi All what is the application of MBDEACT ? it's not clear from the explanation : Deactivate an Entity/set in the Multi-body System what does it do exactly ? where is the application?
  25. Hi, I am getting the following error in RADIOSS ERROR ID : 534 ** ERROR IN ELEMENT GROUP DESCRIPTION : -- SHELL GROUP ID : 959850376 -- SHELL GROUP TITLE : GROUP IS EMPTY When I see the set, there are no elements in that set. The reason is the old model had SHELL4N elements and I deleted the elements and created SHELL3N elements in the same component. Should I delete this empty set or add SHELL3N elements to this group again? Can someone pls explain what exactly the 'Sets' mean?
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