Unformatted text preview: ME 352 - Machine Design I Name
Spring 2012 Lab. Div. Number Homework No. 5
Due: Friday, February 24, 2012 For the mechanism shown below (refer to problem 3.45 on p. 164 of the ME 352 text), input link 2
is moving vertically upward with a velocity of 0.15 m/s and decelerating at 0.10 m/sz. Pinion 4 has a radius of 20 mm and is rolling without slipping on rack 3 at point B. The distance from O4 to pin
A is 40 mm, and the distance AB is equal to the distance BE. Determine the following: (a) Vector loop equation including the unknowns. (b) Position solution using trigonometry. (c) First and second order kinematic coefﬁcients. (d) Angular velocity and acceleration of the rack 3 and the pinion 4. (e) Velocity and acceleration along rack 3 of the point of contact between links 3 and 4 (i.e., point B).
(t) Velocity and acceleration of point E.
(g) Radius of curvature and center of curvature of the path of point E. ...
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- Spring '08