MODULE SPECIFICATION FORM

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MODULE SPECIFICATION FORM


Module Title:

Electrical and Mechanical
Science

B

Level:

4

(Deg L1)

Credit Value:

2
0


Module code:

(if known)

ENG440

Semester(s) in which to
be offered:

1

With effect from:


Oct 20
10


Existing/New:

New


Title of
module being
replaced (if any):

E
NG423 (10cr) Mechanical and Electrical
Science

ENG425 (10cr) Electrical Circuit Theory


Originating Subject:

Engineering


Module Leader:

S Basford
/R Holme


Module duration (contact
hours/ directed/ private
study:

60 hrs
contact

30 hrs
d
irected study


110

hrs private study

Status: core/option/elective
(identify programme where
appropriate):

Core


Percentage taught by Subjects other than originating Subject
(please name other Subjects):

0%




Prog
ramme(s) in which to be
offered:


B
Eng (Hons) and BEng Ordinary:



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Aeronautical and Electronic Eng’g (Avionics)



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E湧i湥敲e湧



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P敲e潲m慮c攠䍡r⁅l散瑲潮ics⁡ 搠d散桮潬潧y



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䵥ch慮ic慬 E湧in敥ring



A敲潮慵tic慬 慮d⁍ ch慮ic慬⁍慮畦慣瑵物湧



P敲e潲m慮c攠䍡r⁔散桮潬ogy



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BSc
䡯湳)⁡ 搠BSc⁏r摩n慲y⁩渺
-



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Pre
-
r敱uisi瑥t 灥r
灲潧p慭m攠
(扥tw敥渠lev敬s):


.


Co
-
requisites per
programme (within
a level):


None


Module Aims:




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Expected Learning
Outcomes


Knowledge and Understanding:

At the completion of this module, the student should be able to:


Mechanical Science

(of Materials)

1.

Define and explain the

basic principles of stress and strain analysis.

2.

To apply

the standard
analysis
techniques to

beam analysis

in
practical situations.

3.

To apply dc and ac circuit theory to a chosen electro
-
mechanical engineering context.


Electrical Circuit Theory

4
.

define fundamental electrical variables in dc and ac circuits;

5
.

select and
use app
ropriate methods to analyse electrical circuit behaviou
r
;

6
.

apply the theoretical principles to practical circuit conditions;

7
.

use appropriate software packages to simulate and predict circuit performance.


Transferable/Key Skills and other attributes:

Mathematical manipulation; Problem solving; Application of software.



Assessment:


Please indicate the type(s) of assessment (eg examination, oral, coursework, project) and the
weighting of each (%).

Details of indicative assessment should also be
included
.


Mechanical Science

(of Materials)

Assessment 1

is by a portfolio of coursework and laboratory exercises testing all outcomes.

A typical laboratory exercise is the analysis of a thick cylinder subjected to pressure.

Readings are taken from stra
in gauges resulting in Principal Stress values which are also calculated by
classical thick cylinder theory (Lame’s equations). The student then produces a report of their findings.


Electrical Circuit Theory

Assessment 2

is by means of in
-
course investiga
tive exercises including laboratory work, which tests
all outcomes. These are developed throughout the module with feedback being given after each
activity.

An example is to predict resonance conditions in a parallel ‘tank’ circuit, to measure the circuit
practically to verify the calculations, additionally to quantify and account for errors. The circuit can also
be simulated and evaluated using appropriate software to predict the circuit behaviour.


Assessment
number (use as
appropriate)

Type of
assessment

Weighting

Duration (if
exam)

Word count (if
coursework)


Assessment One:

Mechanical Science (of
Materials)

Continuous: series of
coursework and lab
exercises.

(Outcomes 1,2
, 3
)


50%




1500


Assessment Two:

Electrical Circuit
Theory

Portfolio
of exercises
and laboratory based
activities.

(Outcomes 4, 5, 6, 7)


50%




1500


Learning and Teaching Strategies:


Mechanical Science

(of Materials)

and
Electrical Circuit Theory


The module will be presented to the students through a specified series
of lectures
, supported by
problem
-
solving practice carried out in interactive tutorials. About one
-
third of contact time will be
devoted to practical laboratory
-
based exercises.


Learning materials including computer tools will be used together with
demonstrations and directed
learning opportunities.



Syllabus outline:


Mechanical Science

(of Materials)

Stress and Strain:

material classification: isotropic, orthotropic, anisotropic. Poisson’s ratio. Two
dimensional problems. Volumetric strain. Bulk
modulus. Elastic constants.

Thin Cylinder and Thick Cylinder Theory:
Thin cylinder
: Stresses, i
ncrease in volume due to internal
pressure. Lame’s equations for thick cylinders. Lame’s equations to solve engineering problems.

Complex Stress and Strain:
Complimentary shear stress.
C
omplex stress situation
/
formulae.
Principal stresses
, maximum shear stress and associated planes. Mohr’s circle.
Principal
strains
.
D
irect strain measurements. Relationship
and c
alculation of principal stresses from
principal s
train values.

Theorem of parallel axes
. Second moment of area about the neutral axis for common sections.
Stress distribution diagrams for combinations of direct and bending
stress

B
eam Analysis:
Differential equation of bending. Application
s to

beams.
F
or
mulae for slope and
deflection. Macaulay’s method for de
termining slope and deflection,
various loading conditions.

Electrical applications:

electromagnetic principles and applications in transformer, ignition coil, motor
and generator (chosen to suit coho
rt specialism).



Electrical Circuit Theory

AC Circuit Analysis
:
impedance, admittance, cond
uctance, susceptance; Circuit analysis

using
complex notation
:
Thevenin and Norton’s theorems, mesh current
analysis,

nodal analysis
,

power dissipation in circuits
-

real/apparent/reactive.

Series, parallel and series/parallel circuits.
C
omputer tools for AC circuit analysis.

Resonance:

Series resonance, Quality factor. Phasor and mathematical analysis of parallel RL, RC,
RLC circuits;

parallel resonance, Q
-
factor, effective Q
-
factor, bandwidth; Imperfect capacitors
-

equivalent circuits, loss angle, power loss.

Polyphase Voltages:
G
eneration of 3 phase voltages; balanced star and delta systems; phasor
diagrams; calculation of line and

phase variables; use of complex numbers in the solution of
problems.

Complex Waveforms:
Nature of complex

waves; synthesis of complex waves
; general equation for a
complex wave; harmonic analysis: numerical methods, Fourier analysis; instantaneous value
s
in vario
us R
-
L
-
C circuits; selective re
sonance; power dissipation, power factor; RMS value;
generation of harmonics by non
-
linear devices; effects of complex waveforms on circuit
performance; problems involving harmonics



Bibliography


Essential Readi
ng

Mechanical Science

(of Materials)

Hearne, EJ

(2004)
;
Mechanics of Materials, vol 1
; (Butterworth Heinemann)



Electrical Circuit Theory

Bird, J.O. (2003) Electrical

Circuit Theory and Technology.
(2
nd

Edn.), London, Newnes











Recommended

Reading

Schaum Series

(2000)
;
Theory and Problems of Dynamics
; (McGraw
-
Hill)

Bolton, W (2006); Mechanical Science; (Blackwell Publishing)

Hughes E

(2005)
;
Electrical & Electronic Technology

(8
th

Ed); (Prentice Hall)

Bird J

(
200
6)
;
Electrical Circuit Theory and Te
chnology
(2
nd

Ed); (Newnes)

Antonakos J,
(
1999
)
;
Simulations for Electric Circuits using Electronic Workbench
; (Prentice Hall)

Hughes, E.; Hiley, J.; Brown, K.C.; Smith, I.M. (2004)
Electrical and Electronic Technology

(9
th

Edn.),
London, Prentice Hall

Bird, J.O. (2003)
Electrical and Electronic Principles and Technology

(2
nd

Edn.), London, Newnes.

Berube, R. (2003)
Computer Simulated Experiments for Electric Circuits Using Electronics Workbench
Multisim

(3
rd

Edn), London,
Prentice
-
Hall


Software title:
Eptsoft.com (2006)
Electronics Mechanics Maths and Computing

(V9.2)