Hi Manuel,manuelkrause wrote: ↑Wed Jul 18, 2018 7:34 pm@Turro75:
What I haven't understood so far is, what do you mean with "arrows are constraints with weight"? Is the weight determined by the sum of constraints, the sum of reduced DOF (by all current constraints for a part) or something of both mixed, when dealing with father-> son <- father (etc.) relationships. For me, I'd admit, I don't get it ATM.
each arrows is a constraints in Your assembly, direction of the arrow is from father to son and the weigth is the number of DOF lost (or locked) in the son after the constraint.
Who is father and who is son? it depends on Your assembly, let's say You want move piston by an handle connected to the crankshaft
this is the chart: cranckshaft (B) is locked in position by the frame (A) so the arrow goes from A to B and it locks 5 DOF (circular edge) on the shaft.
rods are constrained to shaft by circular edge (5 DOF)
pistons are constrained by cylinder (which are part of A) and rods
it makes sense?
let's try to analyze how it should be as in an engine the piston move the shaft:
This time the arrows are inverted and even the values of DOF on each son are different.