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MBE2003 Homework 0 (Framework)
Due Date: 21st Jan. 2016 (Thurs)
Name: _ Student Number:_
1. Fill in the third column (symbol) of the following tables.
2. Write down the following figures with their SI base units in the third column.
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3.
T
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MBE2003 Homework 1 (Stress & Strain)
Due Date: 30st Jan. 2016 (Sun)
Name: _ Student Number:_
1. A straight aluminum wire 30 m long is subject to a tensile stress of 70 MPa.
(a) Determine the total elongation of the wire.
(b) What temperature chan
City University of Hong Kong
Course code & title: MEEM 2029 Electrical and Electronic Principles I
Session:
Semester B 2006-2007
Time allowed:
Two and half hours
This paper has THREE Pages (including this page)
Instructions to candidate:
1.
2.
This paper
City University of Hong Kong
Course code & title: MEEM 2029 Electrical and Electronic Principles I
Session:
Semester B 2007-2008
Time allowed:
Two and half hours
This paper has THREE Pages (including this page)
Instructions to candidate:
1.
2.
This paper
City University of Hong Kong
Course code & title: MEEM 2029 Electrical and Electronic Principles I
Session: Semester B 2005-2006
Time allowed: Two and half hours
This paper has THREE Pages (including this page)
Instructions to Candidate:
1. This paper con
City University of Hong Kong
Course code & title: MEEM 2029 Electrical and Electronic Principles 1
Session: Semester B 2006-2007
Time allowed: Two and half hours
This paper has THREE Pages (including this page)
Instructions to candidate:
1. This paper con
Chapter 11: Amplifiers: Specifications
and External Characteristics
Outline
Basic amplifier concepts
Various amplifier models and analysis
Importance of input and output impedances of amplifiers
Amplifier impedances in various applications
Ideal ampl
MEEM 2029 Electrical Engineering: Fundamentals and
Applications
Instructor: Zuankai Wang
Bachelor Degree in Mechanical Engineering, Jilin University
Master Degree in Microelectronics, Chinese Academy of Sciences
PHD in Nanotechnology, Rensselaer Polytechn
Field Effect Transistor (FET)
Outline:
NMOS, PMOS, CMOS (12.1, 12.7)
MOS FET I-V characteristics(12.1)
Applications (12.5, 12.6)
Reading
Chapter 12.1-12.7
What We Have Learned
The Bipolar Junction Transistor (BJT) is an active device. In simple
terms, it
Bipolar Junction Transistors
Outline
Bipolar junction transistor (BJT) and its three operation regions (13.1 )
Transistor as amplifier: Common Emitter + Bias circuit (13.2)
Circuit analysis of amplifiers
(1) Large signal model (13.5, 13.6)
(3) Small si
BJT
Reservoir
Three openings, B, C,
E.
Black plunger
DC
DB
When water in B is less, only a small amount of water flows from B
to E. Cutoff state.
Ie~0
When water in B becomes more enough, large amount of water
flows from C to E ( lift the plunger) . Ampli
Overview of Diode, BJT, FET
Device+ Characterization
Diode, BJT, FET,
Amplifier
Processing
Materials+ Property
Such as
doping,
photolithograp
hy
Silicon.
1
Overview of Diode, BJT and FET
We follow the parallel treatment of diode, BJT
and FET.
Working pri
Chapter 15: Modern Devices Fabrication
Fabrication
MEMS/NEMS
Photolithography
1: Spin coating
2: Exposure
2-1: Exposure
3: Development
4: Deposition
Deposition
Depositions that happen because of a chemical reaction:
Chemical Vapor Deposition (CVD)
Elect
MBE 2029: Chapter One Homework
1.13
The charge of an electron is -1.60x10-19 C. A current of 1 A flows in a wire carried by
electrons. How many electrons pass through a cross section of the wire each second?
1.21
Consider the circuit shown. Find the power
MBE 2029 Chapter One
A. Class Exercise (~25 min)
Key concepts:
(i) Explanation, (ii) Analysis/Discussion, and (iii) Comments
(Implication, Expanded idea, Deep understanding, .)
Problem-solving skills
Clearly understand the following?
Charge
passive sig
Chapter 14: Operational Amplifiers
Outline
Negative feedback in op-amp circuits
Summing-point constraint
Analysis of various op-amp circuits
Practical op-amp limitations
Differential and instrumentation amplifiers
Reading
Chapter 14.1-14.10
1
What We
Version: 20115A
Tu
utorial 2: Plaane Stress Analysis
A
(M
Mohrs Circlle)
1.
The figuure depicts an
a element subjected too direct streesses
and sheaar stresses. Calculate thhe principall stresses annd
principaal planes. Prrove with Mohrs
M
circlee method.
Version: 2015A
Tutorial 0 : Framework
1. A simple framework consists of a horizontal bar
AC, a supporting link BD, and three pin joints, as
shown in the figure. The vertical downward force
F is 10 kN.
(i) Draw the Free-Body-Diagrams for (a) the
rigid supp
Version: 2015A
Tutorial 1: STRESS AND STRAIN
A: Direct and shear stress
1.
A tubular member in a truss is required to transmit an axial compressive force 200 kN. The thickness of the
wall of the tube is to be 10 mm. What is the minimum required outer diam
ProblemSetfor
KineticsofParticles
Dr. Yong Yang
Department of Mechanical and Biomedical Engineering
City University of Hong Kong
Tat Chee Avenue, Kowloon Tong, Kowloon, Hong Kong
1
Problem 1
2
3
Problem 2
4
5
Problem 3
6
7
Problem 4
8
9
Problem 4 (continu
Problem Set for
Kinematics of Particles
Part II Curvilinear Motion
Dr. Yong Yang
Department of Mechanical and Biomedical Engineering
City University of Hong Kong
Tat Chee Avenue, Kowloon Tong, Kowloon, Hong Kong
1
Problem #1
2
3
Problem #2
4
5
Problem #3
Problem Set for
Kinematics of Particles
Part I Rectilinear Motion
Dr. Yong Yang
Department of Mechanical and Biomedical
Engineering
Tat Chee Avenue, Kowloon Tong, Kowloon, Hong
Kong
Problem #1
Problem #2
Problem #3
Problem #4
Problem #5
Problem #6
Problem
CLA WORK 3: Mohrs Circle
ASS
C
Nam
me:_
_ Stu
udent no.:_
_
_
Const
truct a Mohrs circle for the given stress el
s
lement and find d:
a
a)
Principle stresses and the max. shear str
e
ress;
A-A
10
b Normal an shear stress on plane A-A;
b)
nd
o
c
c)
Directi
CLASS WORK 4: SFD & BM
C
K
MD
A simply suppo
orted beam is sh
hown.
Name: _ Student No.:_
_
_
_
(i) Find the reactions a the two suppo
d
at
orts;
(ii) Draw the shearing f
w
force and bendi moment diagrams.
ing
RA = _
_ ;
_
RB = _
_
_ ;
FB
BDs
For 0 < x <
(a) A beam is of rectangular cross section of 200 mm wide and 175 mm deep. Calculate its
second moment of area about its horizontal neutral axis.
Iwa a +7: (23°) y (-l-ISDs
= X IDa mm“
:5“
(b) The cross section of the beam is reshaped by
removing material
CLASS WORK 4: SFD & BMD
A simply supported beam is shown.
Name:
Student No.:
(ii) Draw the shearing force and bending moment diagrams.
~-
2 ktS
;
TRs= .
t
: . ;,~1.;, ._. .
(i) Find the reactions at the two supports;
2. k~
;]
~
z\<r-i
-A~=2.s 41 ~i'. . ~-
CLASS WORK 5: I & BStress
Name:
Student no.:
~
~
Question (1 ): Calculate the coordinates of the centre of area of the following shape.
x:
'Ax.
=
~f\
x
d=
'iA'd
2.A
:
:.
-+
(_1.l(?.).J(\
s
C 2.-XS)X
c_~J(:!.)+(_2-XS')
2. 4-3.
l2.X. '2- )
;'%
x\ +
(_ 2-X S
CLASS WORK 3: Mohr's Circle
Name:- - - - - - - Student no.:
-~
Construct a Mohr's circle for the given stress element and find: a)
b)
Normal and shear stress on plane A-A;
c)
Direction of the planes on which these stress cri, cr2 and
10
Principle stresses