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Exam1-2008 (Position Analysis)

# Exam1-2008 (Position Analysis) - ME3212 Mechanisms Exam 1...

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Unformatted text preview: ME3212: Mechanisms Exam 1: Fall 2008 Name 1. (20 pts) Calculate the number of degrees of freedom for each of the following mechanisms. Number the links on each mechanism and indicate the degrees of freedom of each joint with a “(1)” or “(2)-,’ Page 1 of4 ME3212: Mechanisms Exam 1: Fall 2008 Name 2. (30 pts) Consider the mechanism with the conﬁguration shown below'and the given dimensions. a) Determine whether or not link a2 can make a complete revolution with respect to the other links. b)What kind of mechanisms is this? double rocker, double crank, crank-rocker c) Write the Loop Closure equations. (1) Determine 93 and 64. 6) Determine the x and y positions of point P in the X-y coordinate system shown above. Page 2 of4 ME3212: Mechanisms Exam 1: Fall 2008 Name 3. (30 pts) Consider the offset Slider-Crank mechanism shown below. a) Write the loop closure equations. b) Determine the angle 63 in the position shown. Is this angle at a maximum or minimum? 0) Determine the rocking angle (e3,max - 61ml) of link #3. Page 3 of4 ME3212: Mechanisms Exam 1: Fall 2008 ‘t 4. (20 pts) Given the mechanism below: a) When the top of the slider is at x=0, the angle 03 = 90 degrees, determine the angle of 02. b) Write the loop closure equations for this mechanism 0) Reduce the loop closure equations to one equation in terms of the given variables, x, and 03 by eliminating 62, (1) Using the Newton—Rahpson Method, determine 03 to the nearest 0.5 degree when the top of the slider is moved to x = 2” Page 4 of4 ...
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Exam1-2008 (Position Analysis) - ME3212 Mechanisms Exam 1...

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