acceleration studies on 6 bar linkages
a)Determine all possible positions of links and joints by graphical position analysis. Draw to scale all positions of joints for sixteen subsequent positions of link 2 and determine the limits of motion where appropriate. Identify and outline the paths of each moving joint.
b)Determine linear and angular velocities by graphical velocity analysis for the given position 2 = 60 of the mechanism, as shown above. Draw to scale the velocity vector diagram encompassing all linear velocities to scale and present the results in a tabular form.
c)Determine all linear and angular accelerations by graphical acceleration analysis for the given position 2 = 60 of the mechanism. Draw to scale the acceleration vector diagram encompassing all linear accelerations to scale and present the results in tabular form.
d)Determine all instantaneous centres of velocity for the given mechanism using Kennedy’s rule, and velocities of joints A, B, C and D using identified instantaneous centres. Draw all instantaneous centres and velocities to scale on a separate diagram of the mechanism.
e)Obtain analytic solutions for positions, velocities and accelerations by vector loop equations and complex number notation and present the results in a tabular form. Compare these results with those obtained using the graphical approach. You should have good correlation.
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