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  1. automechanicar

    Reaction forces in a solid model in FEMAP/NX Nastran

    Hoi, How can I retreive reaction forces in a solid model at a specific location? I know that there is a quanitity called COnstraint Forces in FEMAP 9.2 but when I use this, I get a fringe plot where the legend denotes only nodal reaction forces. However, I am interested in the sum of nodal...
  2. automechanicar

    Hexmesh in Femap

    Hi, Almost everytime I try to hexmesh solids in Femap I get this massege: "Solid can not be meshed. Either Meshes on lateral surfaces are not fully mapped or base and top surface meshes do not match." This also happens often when I try to mesh relatively simple goemtries, like cylinders. The...
  3. automechanicar

    Nonlinear transient impact analysis with contact

    Hi, How can I simulate an object impacting a another object at certain speed or just a drop test. Starting with a sphere which impacts a simply shaped object (like a cube) seems the easiest way to begin with, but I simply can't start off. I know that it should be modeled as a nonlinear...
  4. automechanicar

    Gear analysis and other nontrivial modeling with NX Nastran/Femap

    Hi, Does somebody know how to perform a contact analysis between two gears, where the one gear drives the other one, thus both rotating with a certain rotation speed? Both gears are flexible so it should be possible to recover the stresses and displacements in the gears (including in the...
  5. automechanicar

    Flexible body dynamics with ABAQUS

    Hi, Does anyone has any experience with modeling of dynamics of multiple flexible bodies in contact. Take for example an engine block with it's pistons moving up and down. In this case you may wonder what are the stress induced in pistons, engine blosk casing and other components like the crank...
  6. automechanicar

    Interaction of gears (contact analysis)

    Hi, Is it possible to perform a stress analysis of two gears in contact, that is one gear is driving the other one. I mean a motion analysis, including (contact) stresses and displacements of both gears. Thus, actually a flexible body dynamics analysis, something which can be performed using...
  7. automechanicar

    Importing CAD Assemblies in Abaqus/CAE

    Hi, I am quite new to Abaqus but I want to import an assembly in Abaqus/CAE which has been created in Pro/Engineer. I'm a little bit confused as I can not import the assembly as STEP file (.stp). It seems that it is only possible to import it as a parasolid (.x_t). What is the most used way...
  8. automechanicar

    Using slide line contact

    Hi Does anybody know where to find some background information on slide line contact from Nastran, or especially how to use it within (NX) Nastran. I have an example of slide line functionality which is included within the install of FEMAP, but this works only in this particular example, at...

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