Formulae in attached word file... I don't have the energy to go through the derivation or make pretty diagrams, but those of you with your own copy of "The Internal Combustion Engine in Theory and Practice" by Charles Fayette Taylor goes through the derivation of the formulae for Piston velocity and acceleration. Therefore, to siimplify, at what angles between 0 and 360 would cosine be nearest or at the value of one? This is indeed, our friends, where the greatest acceleration values are reached. Oh yeah, almost forgot: as any engineer, one must assume rigid bodies. ;^) Jouko Haapanen Pori, Finland
Inertia Forces and Moments.doc