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Results Units

User: "Santiago LondoƱo"
Altair Community Member
Updated by Santiago LondoƱo

Hello
I would like to know where I can see the units of the values I get in the results, since nowhere can I see them. Thank you very much.

 

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    User: "Ben Buchanan"
    Altair Employee
    Updated by Ben Buchanan

    It does not show units because the software does not track units.  It is up to the user to keep track of the model units.  In this case your displacement units will be the same units in which the model was run. For example if the model was built in mm the units of displacement will be mm.

    User: "Santiago LondoƱo"
    Altair Community Member
    OP
    Updated by Santiago LondoƱo

    It does not show units because the software does not track units.  It is up to the user to keep track of the model units.  In this case your displacement units will be the same units in which the model was run. For example if the model was built in mm the units of displacement will be mm.

    Hi Ben

    Thank you very much for your answer, I made the model in meters, but it is not logical that it is deformed 1326 m, because the longest length of the element is 10 meters, there what can I do? or is it wrong modeled?

    User: "Ben Buchanan"
    Altair Employee
    Updated by Ben Buchanan

    Hi Ben

    Thank you very much for your answer, I made the model in meters, but it is not logical that it is deformed 1326 m, because the longest length of the element is 10 meters, there what can I do? or is it wrong modeled?

    Yes that definitely suggests a problem.  Are you sure your units a consistent for all material properties and loads too?  What does the animation look like?  Have you done a normal modes analysis?

    User: "Santiago LondoƱo"
    Altair Community Member
    OP
    Updated by Santiago LondoƱo

    Yes that definitely suggests a problem.  Are you sure your units a consistent for all material properties and loads too?  What does the animation look like?  Have you done a normal modes analysis?

    Las unidades las trabajĆ© como estĆ”n en la pĆ”gina, https://2022.help.altair.com/2022/hwsolvers/os/topics/solvers/os/unit_systems_consistent_system_r.htm   

    Las fuerzas las trabajƩ como N y el modulo de Young y elasticidad en MPa, Deberƭa trabajar la fuerzas como MN o KN?

    image

    User: "PaulAltair"
    Altair Employee
    Accepted Answer
    Updated by PaulAltair

    Las unidades las trabajĆ© como estĆ”n en la pĆ”gina, https://2022.help.altair.com/2022/hwsolvers/os/topics/solvers/os/unit_systems_consistent_system_r.htm   

    Las fuerzas las trabajƩ como N y el modulo de Young y elasticidad en MPa, Deberƭa trabajar la fuerzas como MN o KN?

    image

    if your model dimensions are in meters, then Youngs Modulus should be in Pa (not MPa) and force should be in N, if you have defined Youngs modulus in MPa then it is 1000000x  too soft

    i.e. if you have defined 210000 (2.1e5) in MPa for steel, it instead ought to be 210000000000 (2.1e11) in Pa

    Because the analysis is linear, you should find the change will reduce your displacement by a factor of 1000000 too, so your max disp result should change from 1326m to 0.001326m (1.326mm)

     

    User: "Santiago LondoƱo"
    Altair Community Member
    OP
    Updated by Santiago LondoƱo

    if your model dimensions are in meters, then Youngs Modulus should be in Pa (not MPa) and force should be in N, if you have defined Youngs modulus in MPa then it is 1000000x  too soft

    i.e. if you have defined 210000 (2.1e5) in MPa for steel, it instead ought to be 210000000000 (2.1e11) in Pa

    Because the analysis is linear, you should find the change will reduce your displacement by a factor of 1000000 too, so your max disp result should change from 1326m to 0.001326m (1.326mm)

     

    Hi Paul

    Thank you very much.