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Unformatted text preview: MASSACHUSETTS INSTITUTE OF TECHNOLOGY Department of Mechanical Engineering 2.004 Dynamics and Control II Fall 2007 Problem Set #1 Posted: Friday, Sept. 7, ’07 Due: Friday, Sept. 14, ’07 1. For each one of the following systems, argue if in your opinion it is open–loop or closed–loop. In your argument, include your definitions of the system’s inputs and outputs. Brieﬂy describe how feedback is effected in the systems which you decide are closed–loop. a) Washing machine. b) T Green line subway car. c) Audio speaker. d) Air conditioner. e) Manual gear train in an automobile. f) Automatic gear train in an automobile. 2. Rework the solution to the motor–shaft system of Lecture 2 with viscous friction to include non–zero initial conditions ω (0) = ω = 0. Express your result analyt- ically in terms of ω ; then plot substituting numerical values identical to those in Lecture 2 and a) ω = 0 . 5 rad / sec; b) ω = 2 . rad / sec....
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This note was uploaded on 02/23/2012 for the course MECHANICAL 2.004 taught by Professor Derekrowell during the Fall '08 term at MIT.
- Fall '08
- Mechanical Engineering