P0346 - Kinematics and Dynamics of Machinery SOLUTION...

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Kinematics and Dynamics of Machinery SOLUTION MANUAL 3-46-1 PROBLEM 3-46 Statement: Design a fourbar linkage to move the object in Figure P3-13 from position 1 to 2 using points A and B for attachment. Add a driver dyad to limit its motion to the range of positions shown, making it a sixbar. All fixed pivots should be on the base. Given: Length of coupler link: L 3 52.000  Solution: See Figure P3-13 and Mathcad file P0346. Design choices: Length of link 2 L 2 130  Length of link 4 L 4 110  Length of link 2b L 2b 40  1. Connect the end points of the two given positions of the line AB with construction limes, i.e., lines from A 1 to A 2 and B 1 to B 2 . 2. Bisect these lines and extend their perpendicular bisectors into the base. 3. Select one point on each bisector and label them O 2 and O 4 , respectively. In the solution below the distances O 2 A was selected to be L 2 130.000 and O 4 B to be L 4 110.000 . This resulted in a ground-link-length O 2 O 4 for the fourbar of 27.080.
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