I just come to a numerical application. For this kind of mechanism we have decided to maximise the angular speed of the camshaft, while we constrained the flash temperature, the specific work of friction forces, the continuity of contact between cam and follower, the technological feasibility of the cam which refers to the profile curvature. The curvature of the profile has to be obtained by grinding so the surface like the one I am showing you can be obtained. Also the strength and the flexural stiffness of the camshaft has to be limited in order to guarantee the contact of the cam with the rocket. So we can see that this is actually a Multi-objective Programming problem.

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