MAE 3191- Lecture 2
Fundamental Principles and
Design Process
Zidong Yang
Jan 16, 2013
Todays Topic
Fundamental Principles
Deterministic Design Process
Fundamental Principles
Natural Laws
Newtons Laws
Conservation Laws
Thermodynamics Laws
Ockhams Ra
MAE 3191
Project Design Kit
Zidong Yang
Feb 26, 2012
Parts Included in the Design Kit
MABUCHI RS 555PH-3255 12V DC MOTOR
Manufacturer:
Model Number:
Speed@rated Torque:
Voltage:
Nominal Voltage:
Motor Size:
Shaft Size:
Motor Connection:
No load speed:
To
MAE 3191 - Lecture 12
Elastic Strain, Deflection and
Buckling - 2
Zidong Yang
Mar 18, 2013
House keeping
Midterm exam is on Wednesday
Send me a note if you have special need
Office hour for the week
Today: till 4pm
No office hour on Wednesday
Project
MAE 3191 - Lecture 6
Load Analysis - 2
Zidong Yang
Feb 4, 2013
Tips on Design Project
Design Notebook
You are highly recommended to keep an up-todate design notebook throughout the term. this
is an essential design practice that documents the
history of
MAE 3191 - Lecture 9
Stress Analysis - 3
Zidong Yang
Feb 13, 2013
Todays Topic
Principal Stress and Principal Axes
Mohrs Circle Representation of Stresses
Application of Mohrs Circle to Find Combined
Stress
Stress Concentration
Stress Tensor
Transform
MAE 3191 - Lecture 11
Elastic Strain, Deflection and
Buckling - 1
Zidong Yang
Mar 4, 2013
Office hour for the week
Today: till 3pm
12 2pm on Tuesday
10am 12pm on Wednesday
Homework Solutions
All homework solutions are on Blackboard
Blackboard -> Home
MAE 3191 - Lecture 7
Stress Analysis
Zidong Yang
Feb 6, 2013
Homeworks
HW1 (100) HW2 (100)
Highest
Average
Mean
Lowest
98
89
90
65
100
84
86
34
Beam Theory
(Euler-Bernoulli Beam Theory or Classical Beam Theory)
A simplification of the linear theory of el
MAE 3191 - Lecture 8
Stress Analysis - 2
Zidong Yang
Feb 11, 2013
Beam Theory
(Euler-Bernoulli Beam Theory or Classical Beam Theory)
A simplification of the linear theory of elasticity which
provides a means of calculating the load-carrying and
deflectio
MAE 3191 - Lecture 5
Load Analysis
Zidong Yang
Jan 30, 2013
Todays Topic
Equilibrium and Free-Body Diagram
Beam Theory and Calculation
Quantities
Sign Convention
Singularity Function
Mechanics Analysis of A System
Isolating a portion of the total sy
Instructor: Zidong Yang
Corcoran 111
12:30-1:45pm Mondays & Wednesdays
Spring 2013
The George Washington University
Washington, DC
Zidong Yang
yangzd@gwu.edu
Staughton Hall, Room 216
Office hours: Monday & Wednesday, 10:00 11:00am, or by appointment
Mark
MAE 3191 Lecture 3
Motors
Zidong Yang
Jan 23, 2012
Review of Last Class
Fundamental Principles
Natural Laws
Structured Deterministic Design Process
Strategy, Concept, Module, Component
FRDPARRC Table
Pugh Chart
Fundamental Principles
Natural Laws
MAE 3191 - Lecture 16
Spur Gears - 1
Zidong Yang
April 8, 2013
Review of last class
Fatigue
Fatigue strength and failure prediction
S-N curve
Constant-life fatigue diagram
Fatigue strength & Fatigue life
Mean stress + alternating stress
vs.
Maximum st