Altair Hyperworks 2022.1 Inertia Relief Analysis with Optistruct (OST-1030)

[@mesun1289]

Loss of lift :stall

[@nguyenminhvo8820]

hi, how can i check the unit of load of a model I imported but already set it up, thank you

[@ManuelRamsaier]

The thing is, Hyperworks will not require you to pick any unit for loads. Just the units should be consistent if you want to have any reasonable output. So, the best opiton is to check if the model has material cards, because if you know how the Young's Module and the density is specified, you can guess the units. Take for example: 210000 an E for steel - you know then the unit for force is quite likely Newton and the length unit is mm. But if you don't know about the lenght scale, the force unit cannot be extracted as N/mm and kN/m are the same values for E.

[@nguyenminhvo8820]

@@ManuelRamsaier thank you very much