Module Delivered in
| Short Title: | Design 2 |
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| Full Title: | Design 2 |
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| Reviewed By: | FIONA CRANLEY |
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| Description: | Design 2 builds on knowledge of the engineering design process, encompassing specification, analysis and selection from alternative designs. Students will be equipped with the knowledge to write basic design specifications for a product or task. Students will undertake analytical calculations to design and/or select machine elements from a stand aone and system wide peerspective, and apply selection methodologies to compare different design proposals. Students will also be tutored in the requirements for safety, ergonomic and environmental issues. They will expand their concurrent engineering knowledge into the areas of design for manufacturing, and assembly etc. |
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| Learning Outcomes: |
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| On successful completion of this module the learner will be able to | - Produce formal design specifications for simple devices. [POb, POc, POf, POg]
- Compare alternative design proposals using decision analysis techniques. [POb, POc, POf,POg]
- Design and/or select machine elements using analytical techniques. [POb, POc, POf]
- Analyse a simple system to produce specification requirements for elements of that system and specify components of the system.
- Identify safety hazards based on international standards and directives. [POa, POe]
- List and describe the ergonomic and environmental factors affecting a particular design. [POe]
- Describe how design for manufacture and assembly (DFM/A) methodologies are applied in the design of a product. [POa, POb, POc]
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Module Content & Assessment| Content |
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Design process review: (6 hrs) General structure of design specifications. Statement of problem, “must requirements”, “want” requirements, criteria for excellence.
Setting target and final specifications, needs-metrics matrix. Concept selection: (8 hrs) Concept screening, selection matrices, concept rating, concept ranking. Engineering Machine Element DesignSelection:(18 hrs) Requirements for engineering design calculations, safety factors, sizing structural elements, sizing welded joints. Component selection: threaded fasteners, locking devices, bearings, seals, springs. Using web based supplier data Specification and selection of system elements: (8 hrs) Analysis of electro-mechanical or electro-hydraulic systems. Effects of element efficiencies. System component selection and specification. Safety requirement: (4 hrs) Protection of personnel, mechanical hazards, non-mechanical hazards, risk assessment. Protection of equipment, mechanical safety devices, thermal and electrical safety devices. Irish Factories Act, EU machinery directive, US OSHA requirements, safety standards and compliance. Ergonomics:(4 hrs) Deifinition of ergonomics, the human-machine relationship, human factors, instrumentation and control layouts, machine construction, anthropometric data. Design for manufacturing and assembly. (4 hrs) The DFM method, minimising costs, use of standard components, redesign to minimise processing, integration of parts, minimisation of assembly directions, self-aligning and self locating parts, minimising complexity. Design for Environment (DFE).
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| Assessment Breakdown | % |
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| Course Work | 30% | | End of Semester Formal Examination | 70% |
| | Outcome addressed | % of total | Assessment Date |
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| Formal End-of-Semester Examination | 1,2,3,4,5,6,7 | 70% | Semester End |
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| Coursework Breakdown |
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| Type | Description | Outcome addressed | % of total | Assessment Date |
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| Written Report | Concept screening and selection exercise using Pugh concept selection methodology. (Group report) | 1,2 | 10 | Week 6 | | Written Report | Analysis of a system, in order to specify requirements for component design or selection. (Group report.) | 1,3 | 10 | Week 8 | | Written Report | Analysis of engineering factors contributing to accidents/failures. (Individual lab assessment in class) | | 5 | Week 11 | | Written Report | Analysis of ergonomic factors contributing to faults/failures. (Individual lab assessment in class) | | 5 | Week 12 |
IT Tallaght reserves the right to alter the nature and timings of assessment Module Workload & Resources| Workload | Full-time |
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| Type | Description | Hours | Frequency | Average Weekly Learner Workload |
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| Lecture | No Description | 4 | Every Week | 4.00 | | Independent Learning | No Description | 4 | Every Week | 4.00 | | Total Weekly Learner Workload | 8.00 | | Total Weekly Contact Hours | 4.00 |
| Resources |
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| Required Book Resources |
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- K.T. Ulrich, S.D. Eppinger 2007, Product Design and Development, 4th Ed., McGraw-Hill
- R.L. Mott, 2005, Machine Elements in Mechanical Design,, 4th Ed., Prentice Hall
- P.R.N. Childs 2003, Mechanical Design, 2nd Ed., Buttewrworth-Heinemann
| | Recommended Book Resources |
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- R. Budynas J. K. Nesbit, Int. Std. Ed 2007, Shigley’s Mechanical Engineering Design, R. Budynas
- R.C. Juvinall, K. M. Marshek 2008, Fundamentals of Machine Component Design,, 4th Ed., Wiley
- P. Mucci 1994, Handbook for Engineering Design, BSI
- R.M Black 1996, Design and Manufacture, Macmillan
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