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Your model is not fully constrained/pinned within the FEA Frame Analysis module. It could be as missing a missing joint or you don't have any base/grounded constraints.
Inventor 2020, In-Cad, Simulation Mechanical
Just insert the picture rather than attaching it as a file
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Delta Tau Chi ΔΤΧ
I would place a Grounded constraint on the top of the frame at your lifting lug. You will need to apply gravity in the proper direction.
All your joints are proper constrained within the F-A module.
This will give you a static position. You will need to increase gravity by the rate of acceleration of your lift.
The problem my be that your model will want to rotate on the hook. You may need to adjust your direction of gravity to run through the center of your lift lug and through your CoG. I suspect this might be the problem with the first run. If you use a grounded constraint on the lift lug with gravity being correctly applied from the lift lug though CoG this should work.
Inventor 2020, In-Cad, Simulation Mechanical
Just insert the picture rather than attaching it as a file
Did you find this reply helpful ? If so please use the Accept as Solution or Kudos button below.
Delta Tau Chi ΔΤΧ
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