The lengths of the links of a 4- bar linkage with revolute pairs only are p,q,r and s units. Given that p < q < r < s and s+p < q+r which of these links should be the fixed one, for obtaining a ‘double crank’ mechanism?
(a) ink of length p
(b) link of length q
(c) link of length r
(d) link of length s
This question was posed to me during an interview for a job.
Enquiry is from Velocities in a Slider Crank Mechanism and Motion of a Link in division Velocity in Mechanisms of Machine Kinematics