Moorings need to be initialized with linear density equivalent to a line of length norm(fairlead_coordinates - anchor_coordinates) instead of its actual length. This is because of the way CableANCF are behaving in Chrono.
Cables here are initialized as straight cables between anchor and fairlead and their length are slowly increased dynamically as a pre-setup step for the simulation (in order to slowly reach equilibrium), but mass matrices and other internal variables are not updated when changing the element rest length (and changing element density after initializing the element does not seem to have an effect).
This is flagged as a bug although it is not actually one with the current workflow, leaving this issue as a warning. To actually fix the issue would need to modify Chrono source.
Moorings need to be initialized with linear density equivalent to a line of length norm(fairlead_coordinates - anchor_coordinates) instead of its actual length. This is because of the way CableANCF are behaving in Chrono.
Cables here are initialized as straight cables between anchor and fairlead and their length are slowly increased dynamically as a pre-setup step for the simulation (in order to slowly reach equilibrium), but mass matrices and other internal variables are not updated when changing the element rest length (and changing element density after initializing the element does not seem to have an effect).
This is flagged as a bug although it is not actually one with the current workflow, leaving this issue as a warning. To actually fix the issue would need to modify Chrono source.