Purdue
ME 27400 -
exam01_samples
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February 06 2010 February 06 2010 February 06 2010 ME 274 Spring 2008 Examination No 1 PROBLEM NO 3 Name Instructor Given A robotic manipulator is made up of two links OA and ADB as shown in the figure below left Link OA has a fixed length of L 4 ft and the length link ADB is increasing at a constant rate of 6 ft sec The orientation angles of links OA and ADB are increasing at constant rates of d dt 2 rad sec and d dt 3 rad sec respectively Find For the position shown below right with b 3 ft 0 and 90 determine the acceleration of point B on the manipulator HINT In solving this problem use an observer that is attached to AD and with a set of coordinate axes also attached to AD x x B B b y D L O D A O 90 y A
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