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Filtering 1D results in contour plot of fringe.

AKeim
Dear all,
After accessing resultfiles I would like to add a filter in which I delete the 1D results for showing in my contourplot.
In general bolts are modelled but I would like to filter these results in my fringe plot.
Can you help me with this?
 
Thanks.
  • 0
    FIRSTLY
    When you create your fringe plot
    fringe
     
    the second icon (highlighted) specifies the target entities for drawing the fringe plot on.
    By default the Target it is "Current Viewport", you can change this so that you are only using the desired elements. This maybe through use of groups or specific numbering sets. A Useful trick is to use Elements and then type in the specific types you want with syntax like " Quad 1:# Tria1:# Hex 1:# " etc. Note that the id list 1:# is interpreted as ALL the ids of that type.
     
    SECONDLY set the Averaging definition using the control under the 4th icon:
    fringe2
    Set this to the relevant value, so that the nodal values produced are only using the results for the elements that you are drawing the fringe on. An averaging Domain of "None" is always the most informative(and correct) but the least pretty, but choose as appropriate.
     
    Hopefully this will give you sufficient to get what you want. Certainly lots of options, so ask if this is not quite what you wanted.
    cheers
    Arthur
  • 0
    Hello Arthur,
    Thanks for your reply.
    At the moment I am using Patran 2017.0.3, probably we will switch to 2018 in near future.
    So I don`t have this setting at the 4th icon.
    Can you coment on this?
    Thanks.
  • 0
    You can skip my last remark, it works also for my version.
    An additional question on this topic. With the function 1:# one select the quantities which one wants to highlight. In addition to unselect the 1D elements I would also like to delete some surrounding elements of the 1D elements (i.e. boltholes). How is this possible to implement in this section?
    Thanks
  • 0
    In addition to my last remark:
    In fact the 1D elements and the elements directly attached to these elements (i.e. RBE3) should be excluded from the results.
    thanks.
     
  • 0
    Hi,
    using Groups to define the part of the model you want to post process maybe your easiest route. These can be defined under the "Group" application. Then you can use these as your target for the post processing.
    Note that referencing items using their labels like "EL 1:#", "QUAD8 5:50" or "MPC 1:#" is sometimes very convenient but does require understanding the syntax. This can be learnt by watching how Patran creates lists of items as you select them graphically - or of course reading the manual, open the docs and then search for "syntax" and look at the section "Basic Functions" / "Understanding the list Processor". This section contains far more information than you will want but does provide lots of examples of how things can be referenced. In many cases using the picking selection filters allows you to filter and graphically select the type of thing you want and put it into a group etc.
  • 0
    Thanks Arthur.
    This last remark seems to work, however if I create a new group of elements and these elements are already part of another group, does Patran duplicate the elements? Or at least for the postprocessing? Because in my file I have added a new group, and in the postselection I can indeed select this new group as a result (the bolthole itself) however in the "old" part the hole is not removed, so also these elements are still in this group.
    I only want to shift the element to another group, not copying them.
     
    Thanks.
  • 0
    Hi,
    Groups in Patran do not have exclusive "ownership" of items. They are not a hierarchical structure. A Patran group "references" items and an item can be referenced by as many groups as you like. You may wish to have mutually exclusive content in some groups but you need to build this. The basic Group Modify form enables you to click on a line in the "member list" and it is copied into the "Add/Remove" box, as this data box retains its content as you change the "target" group that the form is operating on, it is easy to use this to remove items from one group and add to another. Using the Move/Copy Action is another way of doing similar things.
     
    Groups are so useful that quite a lot of utilities have been written for specific purposes. Check out the Utilities / Group functions. I make extensive use of the Group/Reorganize and the Group/Extend functions. This reorganize function is good for adding in things like the nodes belonging to the elements in the group. It is speeding up the process of querying the data using the "Tools" "List" "Create" which allow you to query the db to find items with specific attributes or associations(relationships).
    Lots of ideas to explore in this lot - I'm trying to keep it quite general as there are many ways of achieving what you want and I don't want to give you a very narrow specific method as your still establishing generic ways of doing what you want.
     
     
  • 0
    Hello Arthur,
    Regarding these groups. Is it also possible to highlight in the model browser a group, by just selecting by mouse an element or node in your FEM-model. This can be handy when one has a lot of groups and doesn`t know exactly the name for the group.
    In fact just as is done by a CAD-program.
     
    Thanks in advance.
    regards,
  • 0
    Hi,
    No. this is not possible as far as I am aware. There can be multiple groups associated with an element so it is not so simple as a CAD hierarchy.
    However you might like to do the opposite. Darrel wrote some extensions to the Right Mouse Button (RMB) for the model browser so you can easily highlight a group.
    refer to:
    or look at the ppt file:  $P3_HOME/shareware/msc/unsupported/utilities/MBT_Extensions.pdf
    other things you may find useful to look at:
     
  • 0
    You can also use the Search Tool in Utilities to find what group(s) something belongs to. Utilities/List/Search Tool:
    ScreenShot1998
    ScreenShot1999
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