Buoyancy term in SimMechancis

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Arthur
Arthur 2014-3-19
回答： Steve Miller 2022-11-20
Hey,
I am new to SimMechancis, so the solution is probably very straight-forward...
I am modelling a mooring system for a wave energy converter (e.g. Weptos, check: https://www.youtube.com/watch?v=2_JSZaAgCUw) and so I would need the whole system to be submerged => to have buoyancy.
I don't think that it is possibly to submit the whole system to a buoyancy term (as it is in function of the volume of the members), so I could do it individually for each main item. However, this force needs to stay vertical, which I don't manage to do. So far, the force is always in line with the object... I have left the subsystem "open" from the buoy in the illustration, any idea how it should be done?
Thank you in advance!
Arthur

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回答（1 个）

Steve Miller
Steve Miller 2022-11-20
The External Force and Torque block has a setting, "Force Resolution Frame". Set it to "World" to always apply the force along the world axes. The buoyancy term would normally be applied along the z-axis.
--Steve

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