Engineering Is

Engineering Is

Mechanical and Aeronautical Engineering at the University of Pretoria www.me.up.ac.za TE-E/1 Mechanical and Aeronautical Engineering The application of maths and science to design, develop, manufacture and maintain mechanical equipment to meet the needs of society Types of Mechanical Engineers Theoretician

Researcher Design Engineer Development Engineer Industrial/Process Engineer Manufacturing Engineer Maintenance Engineer Project Engineer

Other (financial) Management TE-E/2 Where do Mechanical Engineers Work? Private Industry Amplats, BMW, Panasonic, Aerosud, Boeing SA, Toyota, SAFAIR, Bosch, Kumba, Mittal, Columbus Stainless, Aerosud, IST, Carrier, Siemens, GEA Aircooled Systems, Bell Equipment, BHP Billiton, Anglo-Platinum, Ansys Fluent, Oracle, Vodacom, Steinmuller, AMT Composites, etc. Government Services and Corporations Denel, Eskom, SAA, SAAF, Telkom, Sasol, CSIR, NECSA, PBMR, etc.

Consulting Engineers LTA, DRA, MMS Technologies, Hatch Africa, Babcock, IST, etc. Almost all sectors of economy: Chemical, Mining, Manufacturing, Process, Car/Aircraft Manufacturing, Defence, Aeronautical Industry, Corporate, Banking, Stock Exchange, Tertiary Education / Research (University of Pretoria, CSIR, etc.) Own Business (Entrepreneur) TE-E/3 Who Becomes a Mechanical Engineer? Comfortable with mathematics and science Creative ability, Critical thinker Enjoy a challenge

Hard working Perseverance Organisational abilities and good inter-personal relationships TE-E/4 Women as Engineers? Why not? You work with you brain not physical strength At present 20 to 40% are women Better communicators Better project leaders/managers Doing just as well and even better than men

Some of our best students are women We want 50% (and more) of our students to be women TE-E/5 Disciplines in Mechanical Engineering Structural mechanics Thermodynamics

Fluid mechanics Dynamics and control Design Specialisation at the UP: Aeronautical Engineering Maintenance Engineering Automotive Engineering Nuclear Engineering (from July 2009) TE-E/6 Structural Mechanics Structural mechanics deals with the analysis of the influence of forces on structures and includes the deformation and failure of

mechanical structures. Simple as well as very sophisticated computer based finite element methods are used. TE-E/7 Thermodynamics Electronics cooling Gas turbine blade cooling (2008 - ) Thermodynamics is the study of energy, heat and work. It also deals with the conversion of energy from one form

(e.g. coal) to another (e.g. heat, steam, electricity). Air-cooled heat exchanger (2008 / 9) Dr Mahmood - Compressed air inside airfoil & surface film cover - Vortex flow: aerodynamic loss reduction TE-E/8 Fluid Mechanics Fluid mechanics is applied wherever the behaviour of fluids is of engineering interest. Examples include flow over aircraft wings,

vehicle aerodynamics, vehicle engine flow processes, building ventilation, flow boiling inside pipes, etc. Refrigerant R-134a condensing inside a tube-in-tube heat exchanger (2008 - ) Air flow over a SA Navy corvette (2007) TE-E/9 Dynamics and Control Dynamics deals with the motion of structures under the influence of forces. Where a particular dynamic response is desired, control algorithms may be employed to get the system response in accordance with what is desired.

Conversion of Land Rover to fully-autonomous vehicle (2008/9) Dynamic road-load simulation TE-E/10 Design Design is the activity that draws on the knowledge gained in the rest of the engineering disciplines with the aim to create new products, machines, technologies and services. Mine roof support system

Chute design for open-cast mining operation TE-E/11 Aeronautical Engineering The aeronautical engineer is able to predict the aerodynamic forces on bodies such as wings, rotor blades, car bodies, etc. He/she is involved in aerodynamics, airframe structures, aircraft propulsion and control during the development of aircraft. Development of glider for

deployment of special forces (2006) TE-E/12 Maintenance Engineering Maintenance Engineering is the study of machines and systems with the purpose to increase the availability and reliability of these machines and or systems. It is also involved with the study of failure and how to best devise a corrective strategy if failure occurs. TE-E/13

Automotive Engineering In Automotive Engineering, basic Mechanical Engineering principles are applied to design and improve cars, trucks and almost everything else that move on wheels. Diesel research Special fluids cargo carrier (2004) Computerised hydropneumatic suspension system (2007 - ) TE-E/14 Typical Mechanical/Aeronautical Projects

Pebble bed nuclear reactor Conventional (steam, hydro, gas turbine) power stations Air- and water conditioning systems Bio-medical equipment Mining equipment Military equipment Design and development of land, sea, and air vehicles (Airbus A400M, Boeing 777, Bell heavy vehicles, catamarans, unmanned aerial vehicles) Petrochemical processes and equipment TE-E/15 Structures

Mobile bridge that is able to carry military equipment of mass up to 70 ton (tank with ammunition) over obstacles. This equipment can also be used for disaster relief: Role of mechanical engineer Design Manufacturing Testing Maintenance TE-E/16 Medical equipment / implants All medical devices,

equipment or implants, involve mechanical engineering TE-E/17 Medical equipment / implants Design and manufacturing of tools and equipment used by medical profession. Here is an example where special equipment was manufactured to repair the broken tusk of an elephant (2005)

TE-E/18 Biomedical equipment Bio-artificial liver support system (2006 - ) Specialised surgery tools TE-E/19 Construction equipment The role of the mechanical engineer with this type of equipment is as follows

Design of equipment Manufacturing of equipment Testing Maintenance of equipment Management of equipment These photographs depict the largest mobile feed-mixer in the world. Designed, built, used and maintained in South Africa TE-E/20 Mining equipment Shown is a monster of the

mining industry, namely a dragline. This machine is capable of moving 120 m3 (2.5 big domestic swimming pools) or 360 tons ( 400 VW Polos) of gravel in a single scoop. The role of the mechanical engineer: Design Manufacture Testing Maintain Manage

TE-E/21 Analysis of systems or structures A major part of the work of a mechanical engineer is analysis of systems and or structures. Shown is an example of an analysis done on an underground mining machine, tested for the effect falling rock (2007 - )

TE-E/22 Analysis of complex systems Analysis of flow around bats wings, for application in mini- and micro unmanned aerial vehicles (2008 - ) TE-E/23 Aeronautics Design and development of a human-powered vehicle moving on a railway track, at 135 km/h, (2009 - )

TE-E/24 Aeronautics Shown is the turbinecompressor section of a small-scale (5 kW) gas turbine, developed by the UP, (2008). Role of mechanical/aeronautical engineer Design of components various systems and subsystems Design of manufacturing

tooling and equipment Simulation and Testing TE-E/25 Aeronautics Low-speed aerodynamics: The role of mechanical/ aeronautical engineers Design of small aircraft Manufacturing of components and systems Simulation and testing Management of

programme UP Mini-UAV (2007 - ) TE-E/26 Aeronautics Shown is the Seeker II unmanned aerial vehicle (UAV) where the mechanical/aeronautical engineer will be responsible for: Design Manufacturing

Testing Maintenance UP-Quiet Propeller designed for Denel Dynamics, for Seeker II UAV TE-E/27 Opportunities for mechanical & aeronautical engineers Overwhelming demand for engineers (Business Times Careers 29 Jan 2008). Third of all positions advertised in the Sunday Times over the past 6 months were for engineers All industries (mechanical, chemical, mining, manufacturing,

motorcar, aeronautics, defence, banking, stock exchange, consulting, construction, etc.) Lots of advertisements for local talent from various countries: Saudi Arabia, Australia, New Zealand, Canada, etc. Companies: Rolls-Royce, Airbus, Boeing, NASA, TE-E/28

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