MEE 321 THEORY OF MACHINES
Homework 2
Find the ratio of
Name:
in the configurations shown and then estimate the plot over 1 full rotation of
body A by drawing the curve on the graph on the next page. (The cam is shown at 45o increments of
rotation)
= 90
MEE 321 THEORY OF MACHINES
Homework 19 Key
Problem 1:
Set up the complete position analysis (that is, show all step in the general process for modeling
mechanisms with vectors) of the heavy machinery. Be sure that your process can determine
all angles and
MEE 321 THEORY OF MACHINES
HW3
Homework 3 Key
Problem #1
Find the pitch diameter and the circular pitch of a 72-tooth gear, which has a diametral pitch of
32 T/in.
Given:
Find:
N = 72 T, Pd = 32 T/in
dp,
Solutions:
T = teeth
is the pitch diameter.
Circula
MEE 321 THEORY OF MACHINES
Homework 6
Name:
Problem 1
Figure 1 shows part of a gear train for a vertical milling machine. Compound gears 2 and 3 can slide so
that either gear 3 meshes with gear 4 or gear 2 meshes with gear 6. In the same manner, gear 14
m
MEE 321 THEORY OF MACHINES
Homework 6 Key
Problem 1
Figure 1 shows part of a gear train for a vertical milling machine. Compound gears 2 and 3 can slide
so that either gear 3meshes with gear 4 or gear 2 meshes with gear 6. In the same manner, gear 14
mesh
Business Planning:
The Nexus of Venture
Development and Product
Realization
Diane M. Sullivan, Ph.D.
Management and Marketing Department
[email protected]
(Presented by Phil Doepker with permission of Dr. Sullivan)
Identify Need
Iterations
Concep
Chapter 2:
The Mystery of Light
Suppose you shine a laser on 2 narrow slits. What do you expect to see on the
viewing screen?
Interference Youngs Double-Slit
Experiment
If light is a wave,
there should be
an interference
pattern.
The Nature of Light: Part
Chapter 5
Interference and Diffraction
Suppose you shine a laser on 2 narrow slits. What do you expect to see on the
viewing screen?
Interference Youngs Double-Slit
Experiment
If light is a wave,
there should be
an interference
pattern.
Interference
Const
Chapter 1
Our World of Light and Color
Dispersion
White light breaks into different colors
Visible Spectrum
Spectral Colors Wavelengths:
400nm(blue) 700nm(red)
Dispersion
Visible light is actually made up of different colors. Each color bends by a
differe
Chapter 3
Reflection, Mirrors,
and Kaleidoscopes
How do we see objects?
We see objects in two ways:
1. The object may be a source of
light like the sun
2. The light is reflected
from the object
Reflection
Two kinds of Reflection: Diffuse
Specular
Diffuse
Chapter.4
Refraction of Light
The Visible Spectrum and Dispersion
This variation of speed of colors in a prism will split
visible light into a rainbow of colors.
Dispersion
CHECK YOUR NEIGHBOR
When white light passes through a prism, green light is
bent m
Chapter 6:
Light Sources
What is Temperature?
Temperature is a measure of how hot or cold an object is
relative to some standard.
It can be measured in different scales: celsius,
fahrenheit, kelvin
Celsius is the most commonly used scale.
0 oC (32 oF): fr
IDEATION,
INNOVATION AND
ENTREPRENEURS
HIP
OVERVIEW
The importance of Ideation, Innovation and Entrepreneurship to
Engineers
Define and discuss:
Ideation
Innovation
Entrepreneurship
How are they connected?
Discuss the KEEN Philosophy and the KEEN Pyram
MEE 321 THEORY OF MACHINES
Homework 6
Problem 1: For = 22, = 1 (full depth, involute teeth), what is the largest gear a 13 tooth
pinion could mate with?
Solution:
=
2 sin2 4 2
132 sin2 22 4
=
56.1 56
4 2 sin2
4 2(13) sin2 22
Problem 2: Will a = 16, =
MEE 321 THEORY OF MACHINES
Homework 4
Problem 1: Rigid body B rotates at a constant angular velocity counterclockwise causing rigid
body A to rotate. Contact between the two bodies is maintained. Draw all lines necessary to
justify your answer and then ci
MEE 321 THEORY OF MACHINES
Homework 3
in the configurations shown and then estimate the plot over 1 full
rotation of body A by drawing the curve on the graph on the next page. Note the line inscribed on body
A that is used to measure its current orientat
MEE 321 Theory of Machines
HW18
Homework 18 Key
Use the figure below to find all physical parameters. Work in millimeters, where rounding to the
nearest millimeter is acceptable. Observe that the smaller disk has a circular protrusion that fits snugly
int
Problem 1:
(2)
(1)
handle
handles
tip of bucket
(4)
(3)
clamp head (the
rubber coating does
(6)
not provide
compliance, so it is
handle
part of the rigid
body)
(5)
(7)
(8)
mount with bed
Problem 2:
mount with
car hood
MEE 321 THEORY OF MACHINES
Homework 5 Key
Problem 1: A 24-tooth pinion mates with a 45-tooth gear. The gears are full depth, have diametral
pitch of 12 teeth/in, and are cut with a 20 pressure angle. Find the contact ratio.
1
24
=
= 1
2 2(12)
2
45
2 =
=
MEE 321 Theory of Machines
Homework 2
Problem 1: Given the velocities shown at the two points, verify they are consistent by finding
the component along the line through the two points and measuring to show they are the same
length.
l
l
1
MEE 321 Theory o
% MEE 308 - Homework 4 Solution
% Publish the m-file in MatLab to see the solution typeset.
% Question 1 - Viscous Stresses in a Flow
%
% * EOS - fluid 1: $\mu_1=0.1$ and fluid 2: $\mu_2=0.15\ Pa\cdot s$
% * viscous shear stress: $\tau_cfw_yx = \mu \fracc
MEE 321 THEORY OF MAACHINES
Homework10
Problem 1:
MEE 321 THEORY OF MAACHINES
MEE 321 THEORY OF MAACHINES
Problem 2:
MEE 321 THEORY OF MAACHINES
Problem 3:
Volvo
Bobca
t
MEE 321 Theory of Machines
HW 11 Keys
Problem 1:
Use Kutzbach's Modification of Gruebler's Equation (KMoGE) to calculate the degrees-offreedom of the following. Show your values for L, J1 and J2 in your calculation.
(a) L = 6
J1 = 7
J2 = 0
M=1
(b) L = 10
MEE 321 THEORY OF MACHINES
Problem 1:
B 72
Determine the number of
teeth on sprocket D if the
cable speed needs to be as
close as possible to 2.5 ft/s.
Identify which arrow indicates
the rotation of worm gear A.
Chain
C 35
46 in
Cable
LH Double
250 RPM
2.
MEE 321 THEORY OF MACHINES
Homework 4 Key
Problem 1
Find all possible 12-pitch, 20pressure angle simple gear trains with a reduction of 7:4. The input
and output gears should rotate in the opposite direction. The gear train should not include any
idlers.
