Applying wind pressure on 1d line elements

Altair Forum User
Altair Forum User
Altair Employee
edited October 2020 in Community Q&A

Dear hyperworks users,

 

Currently I am working on a size optimization of a truss structure. I would like to investigate if it is possible to apply a wind pressure onto this structure.

I have defined a line model which is modeled with Cbeam elements in Hypermesh. Now I would like to apply a pressure force at one side of the structure, which would be the wind pressure.

On the internet I have found the description in the picture below, does this mean that I would have to convert my wind pressure into a force which then must be applied as a distributed force on the elements. This would then be an approximation due to the fact that the lateral surface area of the truss structure depends on the outcome of the size optimization. Can someone confirm me if this is the right procedure to solve this problem? Thanks in advance!
 

pressure.jpg.ba9a50835c5877de9d6aa630d0851cd7.jpg

 

Regards, Mike

 

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Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited June 2018

    Hi mike0172,

     

    You can apply the pressure load as it is on all the elements. No need to convert it into force.

     

     

    Thank you

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited June 2018

    Dear Premanand

     

    Thanks, That was all I need to know.


    Regards, Mike

  • tinh
    tinh Altair Community Member
    edited June 2018

    PLOAD1 is load per unit length

    but you want to describe wind pressure (load per unit area), this pressure is constant

    so I think PLOAD1 should vary with beam width (which is changed by optimizer)

    please try running and inform us your results

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