Name ME 350 Mechanical Design and Manufacturing II Exam 1: Closed Book Problems Winter 2004 This portion of the exam is closed book you may not use any books, notes or problems. Please mark the answers on this exam. When you are done give the proctor this
Problem 1 The 18 tooth pinion is driven 5000 rpm by a motor that delivers 20 lb in of torque. The gears provide a double reduction in speed, with the output taken from the 36 tooth gear. Both the 6-pitch and 9-pitch gears have a 25o pressure angle. Neglec
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ME 350 Mechanical Design and Manufacturing II Exam 1: Closed Book Problems Practice Fall 2008 This portion of the exam is closed book you may not use any books, notes or problems. Please mark the answers on this exam. When you are done give the proct
Problem 3 The 18 tooth pinion is driven 5000 rpm by a motor that delivers 20 lb in of torque. The gears provide a double reduction in speed, with the output taken from the 36 tooth gear. Both the 6-pitch and 9-pitch gears have a 25o pressure angle. Neglec
2nd Midterm Review
Monday, December 8
Problem 1
Givens?
Gear 1: T = 20lb*in N = 18T; P = 9T/in Gear 2: N = 64T; P = 9T/in Gear 3: N = 24T; P = 6T/in Gear 4: N = 36T; P = 6T/in
Pit Di Pitch Diameter
Find all of the pitch diameters
d1 = d2 = d3 = d4 =
N1 P
ME 350 Design and Manufacturing II: Motor Homework Due Date: October 6, 2005 This homework should be completed and submitted by each design team. To get partial credit you need to show all your work.
Problem 1: Disassemble the DC motor supplied to your Te
Mechanism Homework Solutions
ME 350: Fall 200 Problem 1: Slides will differ between students. One typical example will be a piston. System should be a closed loop system.
Grashof? Is S + L # P + Q? 41.88 + 10.7 > 24.5 + 19.2 ` Non - grashof i2, toggle = a
Problem 1
Problem 2
Problem 2
Problem 3
K i 32M d 3 4C 2 C 1 ( 2) K i = 4C(C 1) ( 3) C = D / d (1) = d 4E M = ( 4) k = 64DN a ( 5) 64MDN a = d 4E
180 Spring .75in r 1.4 lb
Max Bending Stress (psi) Ki Stress Augmentation Factor M Max Torque (in-lb) D Coil
Problem 3 The gear train below has a sun gear =#5, ring gear=#2 and arm=#6. There are two inputs- sun gear #5 revolves at 5 = 300 rpm and the ring gear #2 revolves at 2 = 500 rpm, both counterclockwise. Find the resulting rotation and direction of the rot