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Found 30 results

  1. Hello, I have a 2D surface meshed using tria-shell elements (Img 1) which I would like to use as a reference and mesh it onto the solid object (Img 2). Presently I need to define equivalence between both components which results in element distortion due mis-matched element's position and size. How can I use the shell elements of the surface component to "project/map" 3D elements in to the solid component? The solid component was created using the base surface and 3 addition surfaces as bounding surface. Regards
  2. In a Transient Magnetic 2D Axisymmetric simulation, a solid movable piece of steel is attracted upwards by the combined forces of permanent magnets and a coil. The coil is represented in the associated electrical circuit as a coil conductor with one turn, and its resistance is equal to that for one turn as well. Current through the coil conductor is imposed by a current source. Now, once the mover has moved half of the required distance, the magnetic circuit should start to act as a brake (or damper), rather than an actuator. Hence, by passive means, the speed of the mover should be reduced. I would like to achieve this by short-circuiting the coil, and using it as a solid conductor. However, this requires to switch from one electrical circuit implementation, to another one. In the second electrical circuit, there is no current source anymore, and the coil is represented as a solid conductor (to act like a solid piece of copper). Can someone explain how I can implement both of these situations in the same Flux simulation? @Flux support @lombard
  3. Hi All, I am selecting component using *createmarkpanel comps 1 " " ; Now i want to know selected component contains 2d 0r 3d element; Regards, PD
  4. Hi, I am new Hypermesh and Alatir. I need to create a mesh for simulation. I just started using ANSYS and Hypermesh and i cannot figure out how to create a solid from .stl file. I need to assign inlet outlet, wall and mesh the entire volume. I have to figure out but i couldn't find any sources to create a mesh from .stl file. Thank you Volkan 449099_B_fixed.stl
  5. All three solid (visualization) laminates are overlapping each other. Is that a problem if we do analysis as per below laminates design? please tell me the possible step to make it good? below model is a metal composite sandwich......... what connection we have to made to join it?
  6. Hello, I’ve the task to build a ply-based solid composite model. The tricky part is, I have to build the model out of plies, which are drawn in Catia Shape Design (see picture 1). Why do I want to model each layer as a solid (ply-based solid composite model)? First reason, the composite part is used in a load introduction area. From the literature, a solid design is recommended. Second reason, I want to make use of Altair MultiScale Designer (MSD). In Optistruct only solid elements are currently supported with user materials. Therefore I use MAT9ORT as material. In the last step I replace the material information with an user defined material (woven 5 harness satin), which I get from the MultiScale Designer (MSD). Why is the composite part drawn in Catia Shape Design? Since the design of the composite part is complex at many points, Catia Composite Design (CPD) couldn’t be used for that. Instead the whole composite part is drawn in Catia Shape Design. Each layer (=ply) is drawn individually. So the geometrical informations I get from the CAD model are correct. But I have to work with this model and cannot rebuild it in CPD. What I've tried so far: I loaded each layer into Hypermesh and meshed the components (automesh, quads only). Then I created the materials (MAT9ORT), the plies (PLY01, ...), a laminat stacking and properties. Last I would do a shell to solid conversion. (see picture 2) Problems and questions: The layers don’t know each other. So the mesh of each layer is different. (see picture 3) Moreover in the thickness direction of the plies, they are not really connected. (see picture 3) Can you help me to find a strategy to build up the laminate out of the shapes I have from Catia? Since I’m an unexperianced HM user, I kindly ask you to explain your help and instructions in detail. Thanks a lot! My software: Hypermesh 2017.2 OptiStruct as Solver Multiscale Desinger 3.4 for the user material Catia V5
  7. Hi Guys, Im doing frontal collision using radioss, spot weld and adhesives were provided using connectors. Since there were interferences between spot weld and adhesives as shown in the figure. Both spot and adhesives will be there in model, is it advisable to continue with this. Since my major interferences and penetrations is between spot and adhesives. Can you provide me a better solution. Also while providing type7 contact, Case1 In my model both shell and solid part persists i have directly selected those parts in Master Entity and Case2 In my model , i have created skin for all solid parts with a thickness of 0.01mm and updated those in Master entity along with shell parts in this which one is advisable, how to establish contact for those solid components.
  8. ソリッドジオメトリの穴を埋める方法です。  ◎Geomページ ⇒ autocleanupパネルを選択  ◎edit parametersボタンをクリックし、Parameters File Editorを開きます。  ◎ Solid hole recognition に半径の値を入力します。ここで入力した半径未満の穴を削除します。      ◎ ソリッドを構成するサーフェスをすべて選択してクリーンアップを実行します。   
  9. I'm planning to use PSOLID element for a 3D composite model, but I'm stuck with how to put thickness, orientation and Failure theory. Please tell me how to go about this. Thanks.
  10. Hi, can anyone tell me how to create shells on all solid faces including interior ones? There used to be a plugin to be downloaded for that purpose. Is that still the case and where would I find that? Thanks in advance.
  11. Hello everyone. I would like to simulate a solid body interacting with a fluid body. As you can see in the model below, the solid body enters, through an interface, inside the fluid body. I assigned to the solid a vertical translation motion. Now, in the results, the two meshes interpenetrate, but the solid doesn't interact with the fluid. Can you help me please? picture1.bmp
  12. Hi, is it possible to give a solid a defined eigenfrequenzy. The Problem is i had to do a modal Analysis of a satellite structure and the first eigenmode had to be above 40Hz, but my tank had a eigenmode at 30Hz. But i know that the frequqnzy of the real tank is 45Hz. So can i give the solid a eigenfrequency with 45Hz? Thanks for your help
  13. Hi All I know that in shell structures, when we have the midsurface, we verify that there are no free edges, what about two solid bodies, specially if I have had to trim the solid, since a part is revolutio and the other part is an extrusion, so they might need different meshing techniques ? how can I assure the mesh in continuous ?
  14. Hello everybody, my name is Thomas from Germany and I am working on my Bachelor Thesis, which is about the topic CFD, at the moment. I am at the beginning of my Thesis and at first i want to create a simple model validation. My topic is about an easy Venturipipe, which gets passes through water. So there are only two variables, which are important: The pressure and the velocity, which i estimate with an analytical calculation, too. The Venturipipe has got a rejuvenation. And if you think about the Bernoulli´s equation, the velocity gets higher and the pressure goes down near the rejuvenation. When the fluid leaves the rejuvenation, the values supposed to be retransform back to the input values. And the model gets unrealistic at this point: When the fluid leaves the rejuvenation, is does not get slower. I create the model data with HyperMesh 13.0. Unfortunately i am not able to find any mistake in the input file, which is computed with AcuSolve. I hope that someone will hear my problem and is able to solve it. Probably there is only a little mistake, which destroys the complete model in the end. Thank you for your support in advance! Best regards, Thomas PS: There is a zip.file enclosed, which includes all the important data and some results, too. Venturi_Pipe_Problem.zip
  15. Hello guys, I wanna know how to create solid bodies in evolve using loft feature between curves. Actually I want to create spoke of wheel rim using loft command but I'm unable to make it a solid body. Do we get solid body if we loft between all the curves? Please help me regarding this. If you have any evolve model of rim spoke that will be very appreciable. Thank you in advance
  16. Hi guys, I'm currently developing a complex composite structure und simulated it already with optistruct with shell elements (Mat8, PCOMPP). In order to distuguish different failure mechanisms I need analyse the stress in thickness direction of the structre. For that I used the "shell-to-solid conversion" within the aerospace menu. Now that I have a solid mesh, I'm not sure how to proceed. What property do I assign to the solid mesh ? What material card do I use for it ? Do I need to assign the material orientation to the new mesh again and if yes, how do I do that ? Thanks in advance
  17. I have a full vehicle with Body, Chassis, Suspension, Axle, Cabin, Floor, Roof, Glass, Windshield, Tyre, etc.. in actual manner as in complete assembly. 2D components are present. Now I want to create 3D in a single component for all the 2D components for my analysis. I don't have enough time to mesh all components in 3D & connect. I want to transform the 2D comp to 3D, the may be I can connect all the solids together into 1 component. Please suggest an option. Is there any Batchmesh available or may be tcl script? The Sample 3D model pic is shared for reference. I want the same thing.
  18. Guest

    Display turns black

    Hello, I am currently facing the following issue related to optistruct. For some reason when click on solid edit the display blackens. May I know the reason for this? I am mistaken at any point? Best, Saurabh Apte
  19. Hi all, I have a model comprised of several components. Each time I worked with Hypermesh I had only components that were surfaces inclosed volumes. Now I have solids. First question, how does that come ? And what is the difference ? I always use the same way to import geometry : import -> geometry -> *.igs. Now my problem is when I want to edit que geometries and among all, delete surfaces. I get this error : "All 16 selected [surfaces] were attached to solids; deletion ignored". How come ? And what to do ? Thank you in advance, Alice
  20. Hello, I'm working with a model that contains 2 components. 1. Comp contains surfaces, solids and elements 2. Comp contains lines, surfaces and Elements. A solid can not be created from the surfaces. I used another way though to create Tetraeder Elements to fill the volume contained by the surfaces. The 2nd component is placed within the 1st component. Now I want to cut out the space of the 1st comp, so that the 2nd comp fits in without having the elements of both components overlap. Basically I want to use a boolean function for elements, like the "solid edit>boolean>A-B (del B )" function for solids. But as I can't create a solid from the surfaces of the 2nd comp. I need to go another way than the traditional boolean. Is there something like boolean for elements? Kind regards, Niclas_emi
  21. Hi, Is it possible to export from inspire to Creo with a solid? I used a stp file from creo to Inspire to get a solid, how can I do it the oposite way? Thanks David
  22. Hello sir Good morning, I was running the full vehicle model for crash and i am facing the problem in time step for which run is being terminated. Please Help me, thank you.
  23. Hi all I have a Solid ( the exhaust manifold) cylinder, where it seems like to be only shells but when I go to features like delete feature, it can be chosen as Solid. the adjacent pipes connected to this cylinder are already surfaces so I could extract the midsurface. how can I convert this middle solid cylinder to surface?
  24. Hello. I am trying add a pressure force on the inside of the cylindrical elements. According to the topic as follows, I extracted the inside of the solid element and add a pressure on it. However, the result showed that there is no displacement or stress caused by inner pressure. 1. Is there any further setting to link solid element and extracted element ? 2. The property of "^faces" is blank. is it ok? 3. In HyperView, the extracted elements (named ^faces automatically) is disappeared. Is this right? Following is model (half of cylinder), load and constraint setting. Thank you for your answer. P.S about question no.2, I added the property of solid element to the extracted component, but the result did not change.
  25. Hi all, My model was built with tetra solid elements, and a structural analysis was solved. In the test, the strain of some points on the solid structure surface were gotten by strain gauges. I want to compare the strain component from my simulation with the test result. However, my problem is how to extract the strain result on the surface of a tetra solid model in optistruct? Thank you
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