Buoyancy force_Hypermesh-Abaqus

Milton Steam Dias_22009
Milton Steam Dias_22009 New Altair Community Member
edited November 2020 in Community Q&A

I am simulating a floating structure. I want to know how to apply buoyancy force in Hypermesh-Abaqus profile. If anyone has any material related to it please do share it. Thank you

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Answers

  • tinh
    tinh Altair Community Member
    edited November 2020

    Hi,

    I think it is similar to pressure,

    example a boat has dipped area with z <= 0, will cause a pressure p = RHO * g * (-z)

    to apply pressure depends on z coordinate, switch "magnitude" to "equation" and input an equation:

    image

  • Milton Steam Dias_22009
    Milton Steam Dias_22009 New Altair Community Member
    edited November 2020

    Thank You Tinh for answering my query. As u explained in the query we can input the buoyancy force on node as equation depending on the depth. But how to apply it as a function of depth. Buoyancy force increases as the float displaces the water and it depends on the varied force applied on the float.

     

    So my question is how to apply force as a function of depth that keeps changing at every time the load on the float changes.

  • tinh
    tinh Altair Community Member
    edited November 2020

    Hi,

    Can you do it in Abaqus? if Abaqus has relevant keywords to apply that kind of force, we can search their definition in hypermesh.

     

    have a look at

    http://130.149.89.49:2080/v6.13/books/key/default.htm?startat=ch03abk21.html

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