Hw5_New - . Using (a) a graphical construction. (b) a...

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ME 3222 – Spring 2011 Name: Homework Set #5 Due March 4, 2011 1. Text Problem 3.2. Use Table 3.2 (Text Page 182) for parts (b) and (c). Draw the linkage to scale at each limit of motion for parts (b) and (c). Note 1: The last term in the numerator of the expression for angle 2 in Table 3.2 should read (Z +W) 2 , not (Z −W) 2 . Note 2: θ G = 180° when link 4 is the driver. 2. Consider the two positions given for each of two four-bar linkages described below. Link U is used as the driving link. For each mechanism: (a) Determine the Grashof type. (b) Determine the range of motion of the driving link. (Use Table 3.2 on page 182 of the text.) (c) Do each of the two positions fall on the same circuit? (d) Do each of the two positions fall on the same branch? (e) If the two positions represent design positions, will each mechanism provide a useful solution? Mechanism 1: Position 1: Possition 2 : Mechanism 2: Position 1: Position 2 : 3. The initial position of a linkage is defined below: Determine the location of the coupler point when the driver is moved to the position:
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Unformatted text preview: . Using (a) a graphical construction. (b) a complex number analysis. Initial position: ) ( 90 . 60 ) ( 9 . 167 . 20 ) ( 4 . 104 . 60 ) ( 170 . 35 ground mm G follower mm W coupler mm Z driver mm U 90 . 60 6 . 24 . 20 3 . 74 . 60 10 . 35 mm G mm W mm Z mm U ) ( 6 . 45 648 ) ( . 105 400 ) ( 150 200 ) ( . 45 250 ground mm G follower mm W coupler mm Z driver mm U 6 . 45 648 3 . 144 400 6 . 55 200 . 15 250 mm G mm W mm Z mm U 8 . 89 32 8 . 21 12 ) ( 1 . 144 27 ) ( 2 . 68 30 ) ( 90 12 ) ( 33 6 5 4 3 2 1 mm r mm r follower mm r coupler mm r driver mm r ground mm r 12 2 mm r...
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This note was uploaded on 01/29/2012 for the course ME 3222 taught by Professor Cui during the Spring '11 term at Minnesota State University, Mankato.

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