Relation between Mechanical Advantage (MA), Velocity ratio (VR), Efficiency(η) - Explained
What is Mechanical Advantage?
Mechanical Advantage is defined as the ratio between Load( L) and Effort(E)
MA = L / E
What is Velocity ratio?
Velocity ratio is defined as the ratio between distance moved by effort (x) and distance moved by load (y)
VR = x / y
What is Efficiency?
Efficiency is defined as the ratio between Output and Input
η = Output / Input
Relation:
Work done by effort = Input
= E x x
Work done by load = Output
= L x y
η = Output / Input
= L x y / E x x
= ( L / E) / ( x / y)
= L / E is MA and ( x / y) is VR
= MA / VR
η = MA / VR
