Problem Statement
In a four-bar chain ABCD, AD is fixed and is 150 mm long. The crank AB is 40 mm long and rotates at 120 r.p.m. clockwise, while the link CD = 80 mm oscillates about point D.
Given that links AB and BC are of equal length and angle ∠BAD = 60°, find the angular velocity of link CD.
Solution : Given Data
NAB= 120 r.p.m (clockwise)
AD = 150 mm (fixed)
AB = 40 mm (crank)
CD = 80 mm (oscillating link)
AB = BC
∠BAD = 60°
