Aerowerx
Well-Known Member
What I mean is a Cub style landing gear, pinned at the fuselage with bungee cords. Many planes use this, or something similar.
I tried modeling it in Lisa, but it gives ridiculous results, like the displacement under load is several million miles!
It seems that the combination of the pinned joints and bungee-type springs results in no constraints on the wheels, even though I put a fixed support on the fuselage and the legs are hinged at the fuselage.
Am I missing some important point, or is this something that can't be done in FEA?
I tried modeling it in Lisa, but it gives ridiculous results, like the displacement under load is several million miles!
It seems that the combination of the pinned joints and bungee-type springs results in no constraints on the wheels, even though I put a fixed support on the fuselage and the legs are hinged at the fuselage.
Am I missing some important point, or is this something that can't be done in FEA?
