Kinematic Design Project Spring09

Kinematic Design Project Spring09 - Crank-Rocker Mechanism...

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Crank-Rocker Mechanism Gregory Cox Kinematic Design (MCEG 3053) Professor: Dr. Grewal May 4, 2009
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Objective Design a crank-and-rocker mechanism shown in the figure. Crank 2 is the driver and is to completely rotate, while link 4 is to oscillate through an angle of 80 degrees. Link 4 is to be 36mm in length and when it is farthest to the right it is to slope 60 degrees, upward to the right. Assume r1=60mm (1) Determine the values of r 2 and r 3. (2) Make a full size drawing of the linkage using solid lines when link 4 is farthest to the right and dashed lines when it is farthest to the left. Label the transmission angles for these positions on the drawing and determine their values. (3) If crank rotates at constant speed, determine the time ratio for the two swings of link 4. Designing the crank-rocker 1. Draw the output link O A to O B in both extreme positions, B 1 and B 2. 2. Draw the chord B 1 and B 2 and extend it in 1.375 inches. 3.
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This note was uploaded on 11/16/2009 for the course CVEG 3013 taught by Professor Mike during the Spring '09 term at Baylor.

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Kinematic Design Project Spring09 - Crank-Rocker Mechanism...

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