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Machine Design 2
Main Description
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Department:
Manufacturing Engineering
Module Code:
Level:
Level 7
Contact Hours:
Duration:
1 Semester
Directed Study Hours: 18
2010/11
Indep. Study Hours:
Effective Term: Credits:
MACH71001 60 22
5
Prerequisite Knowledge: A mechanics mechanics module module at level 6 Module Description/Aims: The student should develop a more more advanced knowledge of the factors affecting machine component design, with particular reference to situations involving complex stress and strain and more advanced Kinematic problems. This knowledge should aid in the technical analysis and sizing of components that may be required in level 7 final projects.
Contact Hours
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Conta ct Type
Hours
Lecture
3 Pe r W e e k
Tutori al
1 Pe r W e e k
Practical/Workshop 2 Every 2 Weeks
Learning Outcomes
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On successful completion of the module, the learner will be able to: No. 1
Desc ription/Lea rning Outcomes Interpr Interpret et data data from from a complex complex stress stress analysis and apply this this information information to other similar problems.
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2
Differentiate between the various strains measured in a two dimensional system.
3
Recognise the importance of whirling speeds in rotating machinery.
4
Identify the maximum principle stresses and strains found in a system under complex loading and discuss their significance.
5
Use information gained by applying theories of slope and deflection to select beams of appropriate dimensions.
6
Describe the conditions, which might lead to the failure of a strut under a compressive load and employ suitable theoretical analysis to predict this.
Learning Strategies
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Learning Strategies The student will examine fundemental engineering concepts through material delivered at lectures and through tutorial work. The student will participate in lab work that actively demonstrates the fundemental principles covered at lectures. Students will be encouraged to solve problems, both practical and analytical through a structured tutorial program. Visits to industrial plants and guest lectures from relevent personnel will help integrate theory with real world opperations
Indicative Syllabus Content Content
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Detail
Complex Stresses
Stresses on oblique planes, material subjected to; pure shear, to two mutually perpendicular direct stresses, to combined direct and shear stresses; principle planes and associated principle stresses.
Slope and deflection of beams
Relationship between loading, Shear Force, Bending Moment and deflection. Macaulays method for determination of slope and deflection in beams with point loads,uniformly distributed loads and applied couples.
Slope and deflection of beams
Relationship between loading, Shear Force, Bending Moment and deflection. Macaulays method for determination of slope and deflection in beams with point loads, uniformly distributed loads and applied couples.
Kinematics Analysis of velocity, acceleration and inertia forces in common of mechanism & linkages found in production machinery. Mechanisms Strain
Determination of the maximum and minimum principle strains and
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analysis
shear strains in a 2 dimensional stress system. Mohr strain circle and principal strains; principle strains in terms of stresses, bulk modulus and volumetric strain. McClintock's method of strain gauge rosette analysis. Measurement of strain with strain gauges, brittle lacquers, photo-elasticity and reflective coating techniques. Strain gauge application techniques. Interpretation of results in sizing of simple machine members and selection of materials.
Struts
Eulers theory, Equivalent strut length, struts with initial curvature, struts with eccentric loads, Rankine-Gordon formula, British Standard procedure (BS 449)
Assessment Strategies
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Assessment Strategies Knowledge and comprehension of module concepts will be assessed by written examination at the end of the semester. Laboratory practical learning outcomes will be assesed regularly through formally written reports. A minimum attendance at practicals of 75% coupled with achieving a minimum of 40% overall in laboratory assessment will be required. A written continual assessment written test will be conducted mid semester.
Indicative Assessments
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Learning Assessment Assessment Outcome Category Method
% alloc
Additional Information
2, 3, 4, 5, 6
Final Exam (Scheduled)
Final Written Exam
Exam will be a 2 hour written paper
70
2, 3, 4, 5, 6
Continuous Assessment
Class Exam
To be given mid wat through the semester
10
1, 2, 3, 4, 5, 6
Continuous Assessment
Laboratory 5 or 6 practical lab work classes will Experiments take place at regular intervals during the semester.
Reading List
Type Essential
20
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ISBN 071313254X
Title Author Publisher Mechanics of machines Hannah J, Stephens R C.
Year Edition 1991 2nd
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Library Link view 3/4
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Edward Arnold Essential
0080311318
Mechanics of Materials Volume 1 Hearn. E J Pergamon Press
1989 2nd
-
Essential
0080311512
Mechanics of Materials volume 2 Hearn. E J Pergamon Press
1992 2nd
-
Recommended
0333568273
Introduction to Engineering Materials John. V Macmillan
1992 3d
Journals and Websites Type
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Description
Course Material Mechanical Engineers Data Book, Carvill Butterworth -Heinemann, ISBN 0750619600
Curricular information is subject to change
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