Undergraduate Course: Mechanical Design Principles 3 (MECE09018)
Course Outline
| School | School of Engineering | 
College | College of Science and Engineering | 
 
| Credit level (Normal year taken) | SCQF Level 9 (Year 3 Undergraduate) | 
Availability | Available to all students | 
 
| SCQF Credits | 10 | 
ECTS Credits | 5 | 
 
 
| Summary | Engineering design is often regarded as the central creative activity of engineering, requiring the skills of analysis and synthesis to develop solutions to open-ended problems. This module consolidates and builds on students' existing design experiences. | 
 
| Course description | 
    
    Course Syllabus: 
Unit 1 - Course Overview 
Introduction; The Design Process; The Process model. 
Unit 2 - Design Requirements 
Identification of Design need; Product Life Cycle; Legislative constraints. 
Unit 3 - Design Definition 
Exploring the design requirement through the use of "Requirement Trees"; Product Design Specification. 
Unit 4 - Creativity 
Creative style; Divergent/Convergent Thinking; Brainstorming; Morphological Analysis; Creative Habits. 
Unit 5 - Problem Solving 
Engineering approximations and assumptions. 
Unit 6 - Embodiment and Detail design 
Preferred Number Series; Standard sizes; Guidelines for good embodiment design.  
Unit 7 - Design of Experiments  
Factorial Experiments; Limitations of Factorial DOE. 
Unit 8 - Taguchi Methods  
Fractional Factorial Experiments; Linear Graphs; Confounding. 
Unit 9 - Orthogonal Arrays  
Parameter selection; Interpretation of Results. 
Unit 10 - Material Properties and Failure 
Static Strength; Stiffness; Brittleness; Resilience; Toughness; Creep. 
Unit 11 - Stress Concentration  
Design for Static Strength. 
Unit 12 - Fatigue Failure 
Terminology; Measurement; Characteristic Curves; Miner's Rule; S-N Curves. 
Unit 13 - Reliability  
Reliability in the design specification; Cost of reliability. 
Unit 14 - Component Failure 
Reliability of an assembly. 
Unit 15 - Tools for Exploring Failure of a Design 
Fault tress; Failure Modes and Effects Analysis 
    
    
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Entry Requirements (not applicable to Visiting Students)
| Pre-requisites | 
 | 
Co-requisites |  | 
 
| Prohibited Combinations |  | 
Other requirements |  None | 
 
 
Information for Visiting Students 
| Pre-requisites | None | 
 
		| High Demand Course? | 
		Yes | 
     
 
Course Delivery Information
| Not being delivered |   
Learning Outcomes 
    On completion of this course, the student will be able to:
    
        - Describe: - The main stages of the design process within the context of commercial product design: from the recognition of 'need' through to production. Including the interaction between company functions such as marketing, production and maintenance etc. - Differences in creative 'styles' and some of the thought processes involved in design, including the notion of convergent-divergent thinking, and how these styles can be exploited through the use of creativity tools such as brainstorming and morphological analysis.
 - Demonstrate: - An awareness of some of the material properties associated with component failure. - How to select a suitably sized experimental matrix for use in the design of experiments and designate columns for main and combined effects using linear graphs.
 - Use: - Requirement trees to explore and define the constraints and requirements of a system given a simple design specification. - Simple statistical analysis on the results of full and partial factorial experimental designs and use this data to derive simple predictive models of multi-parameter systems. - Basic probability theory to predict the reliability of design systems where components may be deployed in series or parallel and the effects of redundant systems.
 - Calculate: - The fatigue life of simple component geometries subject to varying loads.
 - Interrogate: - Designs for likely causes of failure using both top-down fault tree analysis and bottom-up failure modes and effects analysis.
 
     
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Reading List 
Shigley, "Mechanical Engineering Design", McGraw Hill (1986) 
Pugh, "Total Design", Addison-Wesley (1991) 
These, and other texts, are available in the University Library. |   
 
Contacts 
| Course organiser | Dr Adam Robinson 
Tel: (0131 6)50 8689 
Email: Adam.Robinson@ed.ac.uk | 
Course secretary | Mrs Lynn Hughieson 
Tel: (0131 6)50 5687 
Email: Lynn.Hughieson@ed.ac.uk | 
   
 
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