For the industrial robot in Problem P8.4, assume that the robot arm stops rotating about base A.

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For the industrial robot in Problem P8.4, assume that the robot arm stops rotating about base A. However, the link BC begins to rotate about joint B. If link BC rotates 90° in 0.2 s, calculate the velocity of point C.


Problem P8.4

The lengths of the two links in the industrial robot are AB = 22 in. and BC = 18 in. (Figure P8.4). The angle between the two links is held constant at 40° as the robot’s arm rotates about base A at 300°/s. Calculate the velocity of the center C of the robot’s gripper.


Figure P8.4

C. 40° B

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An Introduction To Mechanical Engineering

ISBN: 9781111576820

3rd Edition

Authors: Jonathan Wickert, Kemper Lewis

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