MANE-4030: Elements of Mechanical Design: Worksheet #1
8/27/07: Topic: reliability A supplier of 4340 steel has shipped enough material to fabricate 100 fatigue-critical tension links for an aircraft
Professor Bharat Bagepalli
Fluctuating Loads
Cycle Counting, Cumulative Damage
Rainflow Method
1
Last Lecture on Fatigue
Professor Bharat Bagepalli
We were given a few cycles of Loading/Stresses
W
Professor Bharat Bagepalli
Shaft Couplings
1
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Shaft Couplings
Page 364
Rigid Couplings: between two perfectly aligned shafts
Typically assembled together on single platfor
Professor Bharat Bagepalli
Spring 2015
Gears and Gear Trains
Overview
Terminology
Kinematics Gear Trains
Down to Gear Tooth assessment
1
Gears and Gear Trains
They are in many everyday products!
Cha
Professor Bharat Bagepalli
Fatigue Life under Fully Reversed Zero Mean Stress
Miner-Palmgren Rule of Cumalative damage
1
Recap S-N Curve with Completely Reversed Stress Cycling
Alternating Stress, MP
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Multi-Axial Fatigue
1
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Power Transmission Shafts
1. Strength Based Design: Combined Bending and Torsional Fatigue,
Stress Analysis
Resolve Force
Professor Bharat Bagepalli
Answers & Homework-11
1
Homework-11: Use Classroom Example Problem Computer Hard Drive, add a Third Disk in The Middle
A simplified schematic of a two-disc Hard drive unit
MANE-4030: Elements of Mechanical Design: Worksheet #24
12/3/07: Topic: Brakes A differential band brake is to be used on a horse-drawn cart as shown in the sketch below. The cart with driver and pass
Worksheet #2 solutions
Aug. 30, 2007 (a) The elongation at 0.2% strain is f = 0.002 200mm = 0.4mm Draw a line parallel to the elastic loading line, starting from point (0.4mm,0kN). Measure the y cord
MANE-4030: Elements of Mechanical Design: Worksheet #2
8/30/07: Ductile material behavior In a tension test of a steel specimen having a 7-mm radius circular cross section and using a gage length of 2
Worksheet #1 solutions
Aug. 27, 2007 (a) To determine the stress, we need the force and cross-sectional area. The force is not too accurate, with a standard deviation of 15% of the mean. The cross-sec