Unit Title: Further Mechanics

frontdotardΠολεοδομικά Έργα

15 Νοε 2013 (πριν από 3 χρόνια και 9 μήνες)

84 εμφανίσεις

Unit Title:
Further Mechanics

Credit Points: 10

Unit Code:

WEM013

FHEQ Level: 5

Delivering Faculty: MarTec

Unit Designation: Traditional

School: Professional Studies

Date validated:
March
201
2


Date last modified: N/A

Unit delivery model: PC

Max &

Min Student No: N/A


TOTAL STUDENT WORKLOAD


Students are required to attend and participate in all the formal timetabled sessions for
the unit. Students are also expected to manage their directed learning and independent
study in support of the unit.


PRE
-
REQUISITES AND CO
-
REQUISITES


None.


UNIT DESCRIPTION


This unit further develops the concepts and principles of engineering mechanics
introduced in the Level 4 unit Mechanics and applies

these to the analysis of a range of
complex marine engineering
-
based problems. The unit allows the student to achieve all
the underpinning knowledge that is required to meet the MCA Applied Mechanics syllabus
at STCW III/2
nd

& Chief Engineer level.


Major themes within the unit will be the effects of bending and torsional forces on
engineering components, the effects and uses of dynamic loading and forces on systems
and the losses and forces caused with flowing fluids.


LEARNING OUTCOMES


On success
ful completion of the unit, students should be able to:


Knowledge and Understanding


K1.

Define, explain and justify key principles and concepts in mechanical engineering
and how they are applied in the marine environment.



Cognitive Skills


C1.

Use appr
opriate formulae and methodology to investigate and solve complex
problems of engineering mechanics as applied to the marine engineering field.


C2.

Apply developed understanding of engineering mechanics principles and concepts
to analyse the performance a
nd effectiveness of aspects of mechanical engineering
systems.




Transferable and Key Skills


T1.

Interpret and communicate ideas and essential data effectively.


T2.

Implement an analytical and diagnostic approach to problem solving.


AREAS OF STUDY


Statics:
Beams & Bending, Columns: Shear force and bending moment diagrams,
relationship between SF & BM, points of maximum BM, points of contraflexure, slope &
deflection of loaded beams, Engineer’s Theory of Bending, bending stresses &
distributions, sy
mmetrical & non symmetrical sections, eccentric and inclined loading,
buckling of columns, end conditions, Euler’s formulae.


Torsion:

Theory of torsion, power transmission in shafts, solid & hollow shafts, shear in
coupling bolts, compound shafts, torsion

in helical springs.


Strain Energy:

Elastic strain energy, resilience, gradual & sudden loadings, strain energy
in springs.


Stresses on Oblique Planes:

direct & shear stress on oblique planes, complementary
shear, seams on thin walled cylinders.


Kinem
atics:

linear, angular & relative velocities, closest approach, relative velocities in
mechanisms.


Simple Harmonic Motion:

SHM equations, frequency & period, mass & spring systems,
pendulums, liquid in U tube, simply supported beam, Scotch yoke mechanis
m,
crank/connecting rod & piston as modified SHM, friction at crosshead, crank torque &
piston effort, cam profiles & forces.


Rotational Dynamics:

combined linear & rotational motion, thrust bearing torque, torque
& power in flat plate & cone clutches, c
entripetal acceleration & force, balancing, bearing
forces, conical pendulums, centrifugal governors, vehicles on curved paths, overturning vs
skidding, super

elevation, dynamic loading from swinging masses.


Hydrodynamics:

Volume & mass flow rates, conti
nuity, sharp edged orifice flow, energies
in a flow & as equivalent head, Bernoulli, friction losses in flow, venturi meters, Darcy’s
formula, equivalent pipe lengths for losses, fluid momentum, rapid valve closure &
instantaneous pressure rise, forces in
pipe bends, forces at nozzles, impact of jets on
stationary & moving plates, curved vanes, centrifugal pump performance.

Control Systems
: pneumatic & hydraulic control systems, equations of motion.


LEARNING AND TEACHING STRATEGY


This mathematically
-
base
d unit will be delivered as a series of lectures interspersed with
limited tutorial sessions. Students will be expected to read up on topics in advance to
prepare themselves for the lectures. During the tutorial sessions students, with lecturer
guidance
and assistance, will work on tutorial worksheets covering the relevant topic.
These worksheets will provide mathematical questions to allow students to put the lecture
material into practice and students will be expected to finish the worksheets during
in
dependent study time, seeking additional guidance as required. The worksheets will be
available on the unit myCourse page and worked answers will be made available after a
suitable time period. Students will be responsible for their own learning and main
taining
their progress through the worksheets.


ASSESSMENT STRATEGY


In order to assist learning, the tutorial worksheets are designed to enable students to
recognise their individual understanding and level of ability in a formative manner; this
will be a
chieved through access to solutions to tutorial sheets via myCourse. The end of
unit examination will be a summative assessment of all the learning outcomes.


ASSESSMENT


AE1

weighting:



100%

assessment type:


Closed book written examination.

length/duration:


2 hours

on
-
line submission


no

grade marking



no

anonymous marking:


Yes


Aggregation


N/a.


Re
-
assessment
arrangements


Referral will consist of a resit paper.




Unit Author: Toby Bishop

Date of version: April 2012