DOF = 3(n-1) - 2f - h
W = ΔKE
m × x'' + c × x' + k × x = F0 × sin(ωt)
G = ωo / ωi
1.1 A link is a part of a machine that has motion relative to another part. A mechanism is a system of links connected together to transmit motion or perform work.
ωn = √(k/m)
where x is the displacement of the machine, c is the damping coefficient, and F0 is the amplitude of the external force.