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  1. JVAero

    Bi directional motor generator

    I have a cable that is under oscillatory load. I would like a motor generator to generate electricity when the cable is under tension, and run as a motor when the cable goes slack. I would also like to able to prescribe the range of tension, so that plays cable in/out to maintain a prescribe...
  2. JVAero

    Parts shifting unexpectedly

    Brad: I will try deleting all the constraints before next iteration with draftsman (today or tomorrow). Jack: Thanks for the lead. Is there a way to quickly use parameterization analysis on an assembly. Maybe a vba macro that loops through all the parts. I'm doing all the modeling. The...
  3. JVAero

    Parts shifting unexpectedly

    Hi, I'm using v5 r15, and am having trouble with parts changing. The assembly has about 400 parts, and I need to convert to step file to transfer to the draftsman for detail drawings. The problem is that the parts keep shifting slightly, with the result that the bolt holes don't line up, or...
  4. JVAero

    Model a shaft / bearing

    I'm running femap with nx nastran.
  5. JVAero

    Model a shaft / bearing

    I should have mentioned that the "bearing supported node" remains in the center of the bearing. The offset displacement occurs in the element that that connects the shaft node to the bearing node, and I've tried cbrush, rigid, and beam with tx pin released.
  6. JVAero

    Model a shaft / bearing

    I am trying to analyze the misalignment under load, but am having trouble with the shaft / bearing modeling. I have the bearing center connected to the bearing housing with beam elements. Also, the shaft is modeled with beam elements. To connect the shaft with the bearing center, elements...

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