## ENGINEERING DESIGN AND ANALYSIS 2

 SHE Level 2 SCQF Credit Points 20.00 ECTS Credit Points 10.00 Module Code M2H724807 Module Leader Martin MacDonald School School of Computing, Engineering and Built Environment Subject Mechanical Engineering Trimester B (January start)

### Pre-Requisite Knowledge

Mechanical Principles A (SD1) or equivalent

### Summary of Content

The aim of this module is to develop an understanding of the formal design process and expand the knowledge of engineering principles and analysis introduced in the first year, with application of these principles to the design of components and systems and machine elements. The percentage of Work Based Learning for this module, as represented by the Independent Learning "Activity Type", is 55%. The percentage of Work Based Assessment for this module is 15%, which is represented by Coursework 2.

### Syllabus

The teaching syllabus will cover the following areas: Design Process: Introduction to the Design Process for the solution of engineering systems and components. Design specifications. Design protection. Safety and economy of design, fail-safe principles, influence of strength/weight ratio. Aesthetic and ergonomic factors. Sources of Information. Mechanical Integrity: Torsion of circular solid and hollow shafts. Shear force, bending moment & torque diagrams for 2D and 3D applications. Complex loaded beams: lateral and axial loading, SF, thrust and BM diagrams, significant values. Analysis of Stress and Strain: 3-D stress/strain systems, Mohr's circle of stress and strain, 3-D stress systems identified. Combined bending torsion and axial loading. Thin cylinders and spheres. Deflection of beams: simply-supported, cantilevers; standard cases - point loads and uniformally distributed loads. Dynamics: Concept of free vibration of one degree of freedom systems; determination of natural frequencies in rectilinear, torsional and transverse modes; Vibration with viscous damping. Application to mechanical, electrical and electro-mechanical systems. Power Transmission System Design: Gear systems - terminology; British Standards; basic gear geometry; design rules for spur and epicyclic gears; transmission of gear tooth forces and resultant forces at shaft bearings; gear tooth stresses based on the Lewis formulae; typical gear/shaft assemblies; methods of locating and securing gears on shafts. Design of shafts, clutches, belt drives, brake systems and power screws. Design of Bearings: General overview of bearing types; parameters involved in design and selection of ball and roller bearings; lubrication and seals; assembling and securing bearings on shafts; selection of ball/roller bearings using manufacturer's data/catalogues. Design of Spring Systems: Design and select appropriate springs for specified applications.

### Learning Outcomes

On completion of this module the student should be able to:--Determine component stresses due to torsion bending, axial and combined loading.-Analyse complex loaded beams with regard to shear, thrust and bending moment diagrams.-Calculate the deflection of standard beams loaded laterally.-Perform analyses of 2D stress/strain systems and determine principal strains/stresses.-Perform the vibration analyses of one-degree of freedom systems with and without damping.-Solve design problems of gear tooth force generation and resultant forces produced in shaft support bearings, with reference to current codes of practice.-Design spring, shaft, clutch, belt drive, brake and power screw systems.

### Teaching / Learning Strategy

The material covered during lectures will be reinforced and consolidated through tutorials, seminars and practical laboratory work. Students will study and solve real world engineering problems encouraging divergent thinking and broader, deeper learning. Students will take part in practical laboratory work which will enhance data acquisition and manipulation skills, individual and group working skills, technical report writing skills and communication skills in general. Through the study of national and international engineering codes of practice, students will be global learners. Through the use of the managed learning environment GCU Learn, students will become more engaged, flexible and independent in their learning as there will be a wide range of learning resources available on line. In addition to the core module content, links to relevant databases for the sourcing of additional reading material from the current research in the subject area from around the world, and notices regarding relevant professional body talks in the local area will be made available. The students will be encouraged to reflect upon the theoretical learning within the work place and the application of newly learned concepts to the work environment. The assessment of the students will incorporate laboratory and design and analysis work based on real world engineering problems through group and individual coursework, and an examination. Students will receive individualised feedback on their performance through one-to-one contact with tutors at tutorials and seminars and marked coursework, which will reinforce the students' learning, and examination results. Work Based Education aims to maximise the direct and digitally mediated contact time with students by practicing teaching and learning strategies that use authentic work based scenarios and encourage action learning, enquiry based learning, problem based learning and peer learning. All these approaches aim to directly involve the students in the process of learning and to encourage sharing of learning between students. The module team will determine the level and accuracy of knowledge acquisition at key points in the delivery, inputting when necessary either directly or with the support of external experts who will add to the authenticity, the credibility and application of the education and learning to the workplace.

"Engineering Design", Dieter,5th Ed. 2012 McGraw Hill "Theory of Vibrations with Applications"; W T Thomson 5th Ed. 1997; Chapman & Hall "Mechanics of Materials, Vol 1 & 2", E J Hearn, 3rd Edition 1997,Butterworth Heinmann "Shigley's Mechanical Engineering Design"; R. Budynas and K. Nisbett 9th Ed. J.Shigley; McGraw-Hill; 2010. "Mechanical Design of Machine Elements and Machines", Collins, Busby and Staab, 2nd Ed., Wiley. 2010. "Formulae for Stress and Strain"; R.J.Roark and W.C.Young 8th Ed.; McGraw-Hill; 2012.

### Transferrable Skills

Manage and present data in a variety of ways and be proficient in generic IT skills. Creative and innovative approaches, combined with scientific and engineering evidence to real world engineering problem solving. Time management skills, professional behaviours, reflective approach to learning, communication skills including oral, written and visual, and team working .

### Module Structure

Activity Total Hours
Seminars (FT) 8.00
Practicals (FT) 10.00
Tutorials (FT) 18.00
Independent Learning (FT) 110.00
Assessment (FT) 18.00
Lectures (FT) 36.00

### Assessment Methods

Component Duration Weighting Threshold Description
Exam (Exams Office) 2.00 70.00 35% Exam related to Learning Outcomes
Coursework 2 n/a 15.00 35% Report
Coursework 1 n/a 15.00 35% Numerical Analysis and Report