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Found 5 results

  1. I have a requirement where I want to create an assembly and associated certain components ( whose ids are known ). The list of components to go in assembly is stored in an excel sheet. How can I do this? I'm very new to hypermesh automation. Can I create an application ( in C++ or Python ) 1. which reads the excel sheet to get the components. 2, This application should invoke the Hypermesh in batchmode and issue an command to create an assembly 3. Then associate the list of components to that assembly.
  2. Hi all, If I export an assembly which contains two components; Comp_A, Comp_B, but NOT Comp_C, and I also export a *CONTACT_SINGLE_SURFACE card which includes all three components (Comp_A, Comp_B, and Comp_C) as slaves: will this be issues with a solver such as LS DYNA? Will Comp_C automatically be exported because the Contact card includes it or will Comp_C simply be ignored in the card?
  3. Hi, According to the Hypermesh User's Guide: while it is possible to organize components into more than one assembly, it is not recommended. Shown below is the direct quote from the guide. Can anyone go into depth why it would not be recommended? What are the drawbacks? It seems like a good way to create iterations of a design by including/excluding one or two components between assemblies.
  4. Good Afternoon all. I'm looking for some guidance. I would like to run a simulation in which I can determine the contact pressure and the stress between two 3-dimensional parts. I'm not familiar with contact mechanic simulation and I am not interested in transient forces. I would like to know stresses and deflections of both parts, post-assembly. I presume I can do this with the Optistruct implicit solver but I'm not sure how to setup the contact card. Can someone walk me through the pre-processing part of doing a press-fit analysis with Optistruct? I can provide geometry and boundary conditions, but I'm lost when it comes to contact and Optistruct capabilities. Thanks.
  5. Dear Members, my problem is the following: I want to calculate the frequency modes of a gearbox-housing that consists of two parts screwed with a flange, using OptiStruct as solver. A validated approach that I want to try is modelling the screws as a bar-element that connects two mpc-rigids, one in the thread-area an the other in the area of the screw-head. The problem that I have is the connection of the two meshes (3D-parabolic with tetra-elements) of the parts in the flange-area. Simply connecting the whole flange leads to unsatisfactory results so that I just want to connect the flange areas in a certain radius auround the axis of the screw. My first idea was using the area-connector to create rigid-elements, but I still have problems to understand, how it works and if its even possible to do it in that manner. When I select "elems" in the location-botton of the area-panel and "rigid" as type no area-connectors are created independent of every other option chosen. Using "node list" leads to really strange connections and its hardly possible to even achieve a creation of some connections. Does anyone have an indea of a different approach connecting the flange-areas? As far as I know defining a contact is not possible for a modal analysis due to linearity. Thank you very much in advance!!
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