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  • Users: jslat
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  1. jslat

    What happened to ADAMS/Engine

    I think FEV renamed ADAMS/Engine to Virtual Engine. See http://www.fev.com/content/public/default.aspx?id=1544 But FEV does not distribute this themselves, that is handled by VI-grade. http://www.vi-grade.com/index.php?pagid=fev_vengine_updates_patches Jesper Slattengren www.prattmiller.com
  2. jslat

    attack angle variation

    If you are using 3D contact you get the surface normal vector reported as a result for each contact track. So if you model your blade with several small spheres and let them contact your windshield you have well defined contact points/tracks and can use the surface normal in post processing to...
  3. jslat

    ADAMS View Target

    Did you change the target for the shortcut on your desktop? If you have installed ADAMS in it's default directory, teh target should be C:\MSC.Software\MSC.ADAMS\2007r1\common\mdi.bat aview ru-st i Jesper Slattengren www.prattmiller.com
  4. jslat

    spline tutorial

    Yes, I know how to do it. Create the spline. Use the syntax: AKISPL(indep_var,0,spline_name) Why not simply use the function builder? That creates the correct syntax for you. Jesper Slattengren www.prattmiller.com
  5. jslat

    Spherical joint problem

    That is an excellent and necessary way to master the art of ADAMS modeling. One warning though: Marker coordinates in the adm-file are written relative to the part coordinate system (LPRF as it used to be called). So remember to check the part. In this case, it is likely that you moved the part...
  6. jslat

    Spherical joint problem

    This is easy happening while working on the model. Instead of double-clicking a marker, you might have clicked, dragged and released one of the markers or the part it is belonging to. It's not really a solver problem. During the assembly phase of the solution ADAMS will move parts so that all...
  7. jslat

    Ordinate extrapolation from an abscissa

    Run-time or design-time? Run-time it is not possible, directly at least. Using ADAMS/View it is very easy to create a second spline which references the first one: data_element create spline & spline_name = .model_1.SPLINE_2 & x = (.model_1.SPLINE_1.ys) & y = (.model_1.SPLINE_1.xs)...
  8. jslat

    SPILNE DATA

    for var=ii start=1 end=(DB_COUNT("SplineRodTorqueX011")) var set var=X_val real=(eval(SplineRodTorqueX011.xs[ii])) end Jesper Slattengren www.prattmiller.com
  9. jslat

    AKISPL function

    If memory doesn't fail me: SplineRodTorqueX011.xs[i] Use the function builder "Getting Object Data" -> "Get Data Owned By Object" to find out how to reference other data in View. BTW, you missed a " in your name. It also seems like a snippet from a macro? Wouldn't it be better to use...
  10. jslat

    solving diferential equations with adams view

    I'm sorry for not noticing this post earlier, but I only browse the forum occasionally. You probably have found the solution by now. The element you are looking for is an Linear State Equation (LSE). Look that up in the documentation. It is relatively easy to use. You need to define the A,B,C,D...
  11. jslat

    AKISPL function

    Data element is a solver element. variable is a View element (that is evaluated before the simulation start). AKISPL is a solver function, only gets evaluated during simulations. What are you trying to accomplish? Where is X going to be used? It seems like a local (to a macro or dbox) variable...
  12. jslat

    impact problem in conjunction with gears

    Depends on the level of detail you want. Most advanced would be to use parasolid geometry for the wheels and use 3D contact. Doable, but slow and lots of disturbances from the faceting. Almost as good is to constrain the motions to one plane. Then you can use curve-curve contact. Much faster...
  13. jslat

    help for variable mastery

    If youa re familar with the SPRINF function in c, thsi si trivial, Create your design variable var cre var=DV_2 int=3 then use it as STR_SPRINTF( "%02d" , {DV_2} ) This will return the string as you want it. Jesper Slattengren www.prattmiller.com
  14. jslat

    How to make Spring's icon smaller?

    I assume that you are talking about the AView spring-damper element. This is a composite element, a so called user-defined-entity UDE that is composed of a number of basic building blocks. A SForce supplies the force description for the solver, a spring_damper_graphic provides the graphic...
  15. jslat

    Part Appearance Control

    Greg is right, as usual. The solver does not know much or can affect the color, transparency or other graphical phenomenas. And it really doesn't matter anyway, what would you use it for? What I think you are after is a way to affect the animation based on simulation results. And that is...
  16. jslat

    rolling without slip

    Actually, a GCON is more generic than the coupler. And way cooler. But it needs the C++solver. Here is a small testmodel (that I already posted on the MSC forum): ADAMS/View model name: model_1 ! !-------------------------------- SYSTEM UNITS --------------------------------- ! UNITS/ , FORCE =...
  17. jslat

    rolling without slip

    A GCON is the easiest/most generic way to implement this. Jesper Slattengren www.prattmiller.com
  18. jslat

    AVIEW:Error:the matrix is numerically singular

    Most likely that part has zero mass and/or inertia. If you have parts without mass/inertia, they must be locked with a fixed joint to a part that has it. Considering that it is PART/1, it might be that this part should be the ground part, but by some reason it is not. Right click ont he part...
  19. jslat

    animation movie file

    Note that the filesize is directly dependent on the number of timesteps, but also on the size of the window. Make your animationwindow smaller, and the filesize will be smaller as well. You also have the option to affect the compression of the avi. Lowering the quality will obviously make the...
  20. jslat

    Wheel moment of inertia estimate

    If you have the possibility to hang the wheel as a pendulum, in two cables, knowing the length from the wheel axis to the attachment point, you can easily derive the inertia from the small angle pendulum oscillation time. The problem is to hang the tire so the pendelum point is the wheel axis...

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