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Re: Computer Software - Pressure Analysis

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  • Re: Computer Software - Pressure Analysis

    Hi Kimberly,

    Whats the exact nature of your simulation ? Is it transient ( time
    dependent) or steady state. Examples of transient could be a
    human dummy on seat subjected to a crash pulse as in a
    frontal crash in a vehicle the complete operation occurs in
    70 -150 milliseconds , thats transient and also nonlinear.
    The reason i ask this is ... there are different classes of Finite
    Element Solvers which address transient / steady state.

    In terms of software tools , in any Finite Element Analysis whether
    transient or otherwise , there three broad steps that are followed ,
    Preprocessing , Solution, Postprocessing , In the preprocessing stage
    the Finite Element (FE) model is built , the model is solved in the
    solution stage and the results are Post processed in the post processing
    stage .

    FEMB, PATRAN, would fall mainly in the preprocessing category , I feel
    Hypermesh definitely scores over them ......

    ANSYS, LS-Dyna, Nastran are the typical solvers , depends on what you
    are solving, LS-Dyna is an explicit solver which addresses mainly the
    transient non-linear domain. and because of its superior contact definition
    is used both transient and quasi static mode .... my guess is this would
    be a better choice for you as a 'solver'

    LS-Post and Hyperview are good post processors ..... Patran also has post
    processing features.

    Hope this helps, Feel free to ask if you want more information.

    Axiom Consulting

    At 11:03 PM 7/23/2002 -0400, Kimberly Miller wrote:
    >I am a graduate student in the Mechanical Engineering department at the
    >University of Cincinnati. I am looking into doing some computer simulated
    >pressure analyses on the human body. I looked at software programs that could
    >determine the pressure between a finite element model of a human body and
    >varying surfaces, such as a chair. Some of the programs I have looked at
    >include FEMB (Finite Element Model Builder) by ETA and MSC.Patran by MSC.
    >There is also a group of design engineers, ARUP, that do similar analyses
    >on LS-DYNA. I am wondering if there is any other programs available that
    >people know about that may help.
    >Kimberly Miller
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