e2_02m - YES NO 4. (20 Points) Determine the velocity...

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ME 364 - Kinematics NAME . Summer Term, 2002 Exam 2, 100 Points, Open Book 1. (25 Points) The mechanism is shown half of full size. Link 2 rotates with an angular velocity of is 1.00 radians per second clockwise and is slowing down at the rate of 0.50 radians per second per second. Determine the angular acceleration of link 3, and the acceleration of point B . α 3 = __________ a B = __________ Work Here: 2 A B 4 3 C O v (1" = 1 in/sec or 1 mm = 1 mm/sec) O a (1" = 1 in/sec 2 or 1mm = 1 mm/sec ) 2
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MAE 364 - Kinematics Exam 2 - Summer, 2002 Page 2 of 3 2. (5 Points) Sketch the equivalent mechanism (using just lower pair joints) to the shown mechanism. Clearly indicate all of the joints and do the sketch on top ot the shown mechanism. Rolling Follower 2 rad/sec
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MAE 364 - Kinematics Exam 2 - Summer, 2002 Page 3 of 3 3. (20 Points) Determine the exact speed and direction of the output gear. Input #1 is exactly 1140 rpm in the direction shown and Input #2 is exactly 285 rpm in the direction shown. ϖ out = _____________ Is shown direction correct?
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Unformatted text preview: YES NO 4. (20 Points) Determine the velocity (magnitude and direction) of the weight W in the mechanical drive system shown below. The electric motor is rotating at 1800 rpm clockwise. V W = _________ B C Input #1 Input #2 Output H A G D E 1140 rpm F 285 rpm A 24T E 50 T B 42 T F 35 T C 44 T G 36 T D 110 T H 28 T 25 T 15 inch diameter drum Double Threaded Worm 35 T 40 tooth sprocket 15 tooth sprocket 42 T 45 tooth W Electric Motor 64T worm gear Chain MAE 364 - Kinematics Exam 2 - Summer, 2002 Page 4 of 3 5. (30 Points) Link 4 is rotating counterclockwise at a constant rate of 1.25 radian per second. The mechanism is shown full size. Determine the angular velocity and angular acceleration of link 2. 2 = ________ 2 = ________ ______________________________________________________________________ Work Here: 2 4 3 A B O v 1" = 1 in/sec or 1 mm = 1 mm/sec O a 1" = 1 in/sec/sec or 1 mm = 1 mm/sec/sec...
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e2_02m - YES NO 4. (20 Points) Determine the velocity...

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