For the 2D casting model I map rod characteristics, so rod stiffness (non linear) measured for normal deflection is calculated along the pull angle of the line and is used to derive the elastic energy within the rod with the normal deflection of the rod as a parameter.How are you calculating the elastic energy in the rod? Is it based on the perpendicular tip deflection and the spring constant of the rod (i.e. k1*x.^2/2 + k3*x.^4/4) or on the curved shape of the rod along with its variable stiffness characteristics?
None of them, maximum elastic energy occurs about 20 ms before MCL and 25 before MRD (which is 33 ms after MAV in the run I use). This is why I chose the elastic energy in the rod as a characteristic of its loading state.Does the maximum elastic energy correspond with the maximum perpendicular tip deflection and thus it is a bit less at MCL?
And the 2D model says it should be above 50 ms or something like that after MAV, IMHO it is consistent with Ulrik’s observations.His curve shows that the max haul velocity (based on the separation speed of the hands) was around 75 ms after MAV when false casting and a shorter 60 ms difference on the delivery cast.
Merlin