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 application. As required in the purchase contract,

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
With non-zero Mean + Alternating
But how does one get t

Professor Bharat Bagepalli
Shaft Couplings
1
Professor Bharat Bagepalli
Shaft Couplings
Page 364
Rigid Couplings: between two perfectly aligned shafts
Typically assembled together on single platform or
base
Flexible Couplings: between shafts with misal

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!
Chapter 15
Professor Bharat Bagepalli
Compound Planetary

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, MPa to Failure SN
or SN
Professor Bharat Bagepalli
Prist

Shapes, Configurations and Design for Manufacturability/Cost
Textbook Chapters 6 & 7
1
Shapes, Configurations and Design for Manufacturability/Cost
Textbook Chapters 6 & 7
Professor Bharat Bagepalli
Reading Exercise: Please go through Chapters 6 & 7. The

Professor Bharat Bagepalli
Multi-Axial Fatigue
1
Professor Bharat Bagepalli
Power Transmission Shafts
1. Strength Based Design: Combined Bending and Torsional Fatigue,
Stress Analysis
Resolve Forces & Moments via Beam Bending Moment Analysis
into :
X-

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 is shown
below.
Though the high-strength steel alloy Sp

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 passenger is expected to have a mass of 280 kg. A hors

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 cordinate of the intersection point of this line and t

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 20 cm, the data shown below was recorded. Using thi

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-sectional area is related to the square of the diamet