How to plot Hourglass percentage increase and % added mass increase of Radioss run in HyperGraph?

Girish Kulkarni
Girish Kulkarni Altair Community Member
edited May 2022 in Community Q&A

Hello,

I completed crash run in Radioss solver.

I want to plot % mass increase for crash run and % hourglass energy increase with respect to total energy in HyperGraph.

Thank you

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Answers

  • PaulAltair
    PaulAltair
    Altair Employee
    edited May 2022

    In your jobnameT01 file, (you will have one, but if you did not specify /TFILE frequency in engine it may have only 1 point in it) You can plot Mass (absolute) this includes added mass and lumped mass and structural mass, and Hourglass Energy and Internal Energy

    image

    Then you can define a curve as 'delta mass' and subtract from it your structural mass (reported in your 0000.out): as a math curve (in my case this is .709 Tonnes)

     

    image

    Then you can create another curve which is your (Delta Mass / Original Mass) * 100 to get percentage

    image

    In my case, just over 3% at the end which agrees with my 0001.out file

    For Hourglass as a percentage of Internal: you can divide one by the other and multiply by 100 (I can't show the curve in my case as my hourglass is 0 (I'm using QEPH elements), you may need to tweak it slightly as if internal energy starts at 0, this would create a div/0 at the start of the curve (you could trim the first few points)

    image

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