Q4. Graphical Synthesis (25 points) a) Design a fourbar mechanism to move member PQ (on its coupler) through the three positions shown below. Specify the length of each member. b) Design and attach a dyad to the link which connects point
Pto the ground
(O_(_())(2))to limit the motion between position 1 and 3 . The dyad must guarantee that the forward motion takes 1.2 times longer than the return motion. The dyad ground position is labeled as
O_(6). You can use the following equations for the dyad length calculations and linkage synthesis: