Abstract:
This experiment was conducted to identify the lathe machine and its
functionality and identify the axes of the lather machine.
Introduction:
A lathe is made up of multiple parts that function together to achieve the
desired objective of removing
Abstract
In this report the two categories of tools are explained. Hand tools and power tools. Hand tools
use the manual labor of the person operating the tool to function. While power tools require
electricity to function. Also the process of manufacturi
Abstract
The students were given the task of manufacturing a part from a wooding block
using the milling machine. The milling machine is a tool that is designed to
machine metal, wood and other solid materials. It uses rotary cutters to remove
materials f
Some of the important properties of solid materials
depend on geometrical atomic arrangements, and
also the interactions that exist among constituent
atoms or molecules.
This chapter considers several fundamental and
important concepts namely:
atomic str
With the categories of engineering materials firmly
established, we can now begin characterizing these
materials.
We will begin with atomic-scale structure, which for most
engineering materials is crystalline; that is, the atoms of
the material are arran
ISSUES TO ADDRESS.
When we combine two elements.
what is the resulting equilibrium state?
In particular, if we specify.
- the composition (e.g., wt% Cu - wt% Ni), and
- the temperature (T )
then.
How many phases form?
What is the composition of each pha
Dr. Mohammad S. Khan
[email protected]
Department of Mechanical Engineering
Office D2F-235 Phone# 5357
1
Upon successful completion of this course, a student will be able to:
1. Differentiate between different classes of materials based on
their str
In Chapter 4, we looked at a wide variety of atomic-scale
structures characteristic of important engineering
materials, but with perfectly repetitive crystalline structures.
No crystalline material exists that does not have at least a few
structural flaw
ISSUES TO ADDRESS.
Stress and strain: What are they and why are they used instead of
load and deformation?
Elastic behavior: When loads are small, how much deformation
occurs? What materials deform least?
Plastic behavior: At what point does permanent
Materials of all types are often heat treated to improve
their properties.
The phenomena that occur during a heat treatment almost
always involve atomic diffusion.
Often an enhancement of diffusion rate is desired; on
occasion measures are taken to reduc
Example 6.1. In a pin jointed four bar mecha-
nism, as shown in Fig. 6.9, AB = 300mm, BC = CD = 360
mm, andAD = 600 mm. The angle BAD = 60. The crank
AB rotates ung'ert'y at i 00 rpm. Locate all the instanta-
neous centres andnd the angular vetocz' ty of
200
DESIGN OF MACHINERY CHAPIE v3.
The Geared Fivebar Linkage
Another example, which can be reduced to two equations in two unknowns, is the gea
vebar linkage, which was introduced in Section 2.14 (p. 62) and is shown in Ft.
4-14a and program LINKAGES d
Example 7.1. In a four bar chain ABCD, AD is xed and is i 50 mm long. T he crankAB is 40
mm long and rotates at 120 rpm. clockwise, while the link CD = 80 mm oscillates about D. BC and
AD are of equal length. Find the angular velocity of link CD when angl
Kinematics & Dynamics of Machinery
MEC 411 Section 1
Test #2 (Time is 60 Minutes)
April 21, 2014
Question 1 (30 Points):
1. List all the steps for drawing the velocity diagram for the Pin joint Fourbar Linkage?
2. List the steps for finding the instantane
Kinematics & Dynamics of Machinery
MEC 411 Section 1
Test #3 (Time is 60 Minutes)
May 21, 2014
Question 1 (25 Points):
1. In what situation should we account for the Coriolis component of acceleration? And
what is the general direction of it?
In the situa
Kinematics & Dynamics of Machinery
MEC 411 Section 1
Test #1 (Time is 60 Minutes)
March 10, 2014
Question 1 (40 Points):
1. List the 10 steps of the design process?
2. List the 4 steps of the creative process?
3. Define what is analysis?
The techniques th
MEC 411 Kinematics & Dynamics of Machinery
Quiz #2
1. Sketch a kinematic diagram of the scissors jack shown in Figure P2-8 and
determine its mobility. Describe how it works.
2. Calculate the Grashof condition of the fourbar mechanisms defined below.
Descr
MEC 411 Kinematics & Dynamics of Machinery
Quiz #8
1. Use the equations below to calculate and plot the S V A J diagrams for a
cycloidal displacement cam function for a lift of 20 mm over an interval of
60o at 1 rad/sec. Multiply the equation of by , a by
MEC 411 Kinematics & Dynamics of Machinery
Quiz #5
1. The offset slider-crank linkage in Figure below has the dimensions and
crank angle given below. Find VA, and VB for the position shown if 2 = 25
rad/sec CW. a) Use the velocity difference graphical met
MEC 411 Kinematics & Dynamics of Machinery
Quiz #4
1. The link lengths, offset, and value of d for some fourbar slider-crank
linkages are defined are a= 1.4 in, b= 4 in, offset = 1 in and d =2.5 in. The
linkage configuration and terminology are shown in F
MEC 411 Kinematics & Dynamics of Machinery
Quiz #7
1. The linkage in Figure below has link 1 at -36 and link 2 at 57 in the global
XY coordinate system. Find 4, AA, and AB in the global coordinate system
for the position shown if 2 = 20 rad/sec ccw, const
MEC 411 Kinematics & Dynamics of Machinery
Quiz #6
1. The linkage in Figure P6-8b has link 1 at -36 and link 2 at 57 in the global
XY coordinate system. Find 4, VA, and VB in the global coordinate system
for the position shown if 2 = 20 rad/sec ccw. Use a
MEC 411 Kinematics & Dynamics of Machinery
Quiz #1
Calculate the mobility of the linkages assigned from Figures below. Also identify the items in
Figures as mechanisms, structures, or preloaded structures.
Mechanism
Mechanism
Thermodynamics I MEC 320 / P a g e | 1
Useful formula
Ch.1-Basic Concepts
Basic Properties
Density: = (3 ).
Specific weight = (3 ), = .
Specific Gravity: =
=
.
Definition of pressure: = (2 ) () .
Hydrostatic pressure at depth h: ph = patm + h.
Rule: p2 =
Chapter 2
A river is flowing at a specified velocity, flow rate, and elevation. The total mechanical
energy of the river water per unit mass, and the power generation potential of the entire
river are to be determined.
Assumptions 1 The elevation given is