Functional Design of Mechanical Systems - 39054-ENG1

introduction to the course, basic concept of functional design
main characteristics of mechanical systems used for motion transformation. Analysis of the typology
transmission quality, synthesis parameters related to the typology of mechanisms
introduction to the motion laws
adimensional form of the motion laws
kinematic coefficients of the motion laws
motion laws families: constant acceleration motion laws, symmetric and asymmetric motion laws, cubic motion laws
motion laws related to vibrating load: motion laws that reduce the overload on the vibrating load
jerk profile, jerk coefficient, influence of the motion law discontinuity on the vibrating load overload
cycloidal motion law, polynomial motion law, seven parameters motion law

Planar Cams
general design problems
influence of the pressure angle and of the profile radius on the cam's design
typology of planar cams
analytical synthesis of planar cams

synthesis of four bar linkages for fast return solutions
synthesis of delay mechanisms
criterion for press design
mechanism for force multiplication
introduction to the analytical synthesis of mechanism
analytical synthesis of four bar linkages for the generation of path or planar rigid motion

Planar and spatial mechanical systems with more than one degree of freedom

introduction to mechanical system with more than one degree of freedom
transmission quality
Jacobian calculation and methodologies for the evaluation of transmission quality
force and velocity ellipsoid

Gears

correction of the gear profile
criterion of gear correction
introduction to planar epicycloidal gear train, Willis's formula
efficiency and transmission ratio of epicycloidal reduction gear