Homework4_machinecomponentsandsystems

Homework4_machinecomponentsandsystems - 2.000 Homework # 4:...

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Unformatted text preview: 2.000 Homework # 4: Machine components Name:______________________________________ Weight: 100 pts Due: Day 10 at beginning of lecture (date differs from original syllabus) You must return your screwdriver in working condition! 1. Screw driver stall torque a). [10] Perform an experiment to determine if the stall torque listed by the manufacturer is correct. Provide a sketch of your experimental set up, the details of your calculation and the reasoning you used to make your decision about the manufacturers claim. b). [5] Perform an experiment to determine if the no-load speed listed by the manufacturer is correct. Provide a sketch of your experimental set up, the details of your calculation and the reasoning you used to make your decision about the manufacturers claim. 2.000 How and Why Machines Work 2002 Martin L. Culpepper 1 2.000 Homework # 4: Machine components 2. Train ratio of combined planetary gear trains a.). [5] Find T r of the cordless screw driver. NOTE: in = motor and out = screw driver shaft . 1. Begin by solving for the speed of the arm in the first gear train as function of s1 2. a1 = s2 and a2 = screw driver shaft . 3. ring = 0!!! + + + (Integral sun gear-2) + Motor Gear GT-1 GEAR TRAIN # 1 (Sun gear-1) = Arm 1 Gear GEAR TRAIN # 2 = GT-2 b). [5] Perform an experiment to verify your calculation. Provide 1-2 sentence explanation of b)....
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This note was uploaded on 02/23/2012 for the course MECHANICAL 2.000 taught by Professor Martinculpepper during the Spring '02 term at MIT.

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Homework4_machinecomponentsandsystems - 2.000 Homework # 4:...

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