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yehoo

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About yehoo

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    Germany
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  1. i have use other method.. which is: i use the displacement produce due to the force applied on the 1d model, and apply it in a 3d model which have the biggest deformation from the 1d model
  2. Hello, i am trying to calculate von Mises stress for a beam. The beam has a weird cross section and i already defined the section in hyperbeam. for properties i use PBEAM, since there is no cross section that is the same in optisctruct library. i have gave the value for continuation line 2, 5 and 6. in Output, i have requested stress for all type. There is no problem during the calculation and in the result type(Hyperview), it only shows Displacement, Element strain(1D) and Element stress(1D). Under Stress, i can only choose axial and long. stress, but i need von Mises Stress. How can i obtain the von MIses stress? thanks in advance
  3. 3d contact is one of the easiest way, but i received an assignment to try different method available. the problem that i have by 2d and advance joints is curve. In my model there is a lobe(camshaft) and i need to create a curve based on the contour. i create alot of points on the curve but the graph is still not smooth. is there a way to smoothened out a curve so that there is no 'interference' in the force-time graph?
  4. Hi, I have two main questions (for now) 1) I have define an advance joints between two bodies and is there a way to define the contact force between these two bodies without using the 3D or 2D contact simulation? 2) what does it mean when i define output-force-body and how can i see the result in hypergraph or hyperview? thanks for the help!
  5. Hi, What's the difference between the contact properties (Normal force) in Motionview. i have tested Impact and Volume model and the contact force between the two are different. Which should i take/use for the Simulation. thanks in advance.
  6. if i did an advance Joints, can i know the stress? or is it only possible to know the stress through flexbody?
  7. yehoo

    curve

    does anybody know how to solve this? i planning on knowing the eqution of a surface of a cam lobes, so that i can create a curve in motionview.
  8. i'm trying to Analyse the stress and behaviour of the 2 components in the picture. the green part is a Flexbody. i have defined a contact between the lobe(Grey) and cylinder(red). From what i know, Stress Analysis can only be performed on a flexbody(correct me if im wrong). if i define the lobe as a flexbody, then the contact error Pop up when i run the model. i think if i add an advanced Joint, it could solve the Problem. But i'm not sure how i can create a curve on the lobe surface.
  9. yehoo

    curve

    hi, is there a way to create a curve equation from a surface of a solid or component? either Hypermesh or Motionview.. thanks in advance
  10. Hi, i have two questions/problems for now 1) Is there a way to perform Stress Analysis without using a flexbody? 2) when i create a flexbody and define a contact at the Body, an error was shown when i tried to run the model. (Entity Model-PartBody.2 is turned off but is referenced by Model-Contact 3-jg_1. [General]) thanks in advance.
  11. i Change the Input and initial condition of the Motion and ist Joint to Velocity and it seems to be working. the Motion is like i imagined. i'm not sure where was the problem
  12. Hi, sorry, i don't thik i can share the model publicly since it is a working Project. i have tried to work using geometry from cad, and the message log did not Show anymore when i run the model, but the model did not move at all. (This is actually my first time working with Motionview)
  13. hi, i have meshed the geometry first in HM, then Export it to MotionView. Is it better to use the geometry from CAD than HM? thanks for the info though. I'll try to use the geometry from CAD instead of HM. Is the mesh Quality will be about the same, if it´s automaticly meshed by Motionview and will it effects the results?
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