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FlexPro 6 – RainFlow Counting Procedure

Page d'accueil ' Communauté ' Généralités ' FlexPro 6 – RainFlow Counting Procedure

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  • #33817
    Brad Burkholder
    Participant

    We recently purchased the counting procedure add-on for Flexpro 6. I have tried to produce the attached picture results. Top left corner is the graph from Flexpro. Right side is a practical rainflow analysis (from a technical write up). Bottom left is the outcome of the data (from a technical write up). Can someone please explain how to use the rainflow count? I found out that Flexpro 8 automatically insert the Count matrix where as FP6 you have to do it manually. Is there more technical referance books other than the FP Help…?

    #33819
    Brad Burkholder
    Participant

    We recently purchased the counting procedure add-on for Flexpro 6. I have tried to produce the attached picture results. Top left corner is the graph from Flexpro. Right side is a practical rainflow analysis (from a technical write up). Bottom left is the outcome of the data (from a technical write up). Can someone please explain how to use the rainflow count? I found out that Flexpro 8 automatically insert the Count matrix where as FP6 you have to do it manually. Is there more technical referance books other than the FP Help…?

    #33818
    Bernhard Kantz
    Participant

    [b]Technical references for Counting Procedures Option are:[/b]
    [1] DIN 45667 (1970). Klassierverfahren für das Erfassen regelloser Schwingungen (Counting procedures for determining random oscillations). Beuth Verlag
    [2] de Jonge, J.B. (1980). Counting Methods for the Analysis of Load Time Histories. NLR Memorandum SB-80-106 U
    [3] Fraunhofer-Institut für Betriebsfestigkeit LBF (Fraunhofer-Institute for Structural Durability LBF), Darmstadt. Hinweise zur Anwendung von Zählverfahren im Rahmen von Betriebsfestigkeitsuntersuchungen (Tips on using counting procedures as part of structural durability testing). http://www.simtop.fhg.de/cgi-bin/rmcat?1000kl03

    [b]New features in FlexPro8[/b]
    The Rainflow matrix can now also be calculated in asymmetric form.
    You can exclude the residue from the matrix, include a closed hysteresis “a-b-a” in the center of the residue only, or fully include the residue into the matrix.
    If you create a Rainflow Count directly for a data set, then FlexPro 8 automatically creates the required Count Matrix analysis object as an intermediate step.

    support@weisang.com

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