Handbook 1996 : Faculty of Engineering (Volume 4 page 114)
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Credit points: 44.00
Coordinator: Assoc. Prof. H. C. Watson
Contact: 186-187 lectures and 53-54 tutorials and laboratory sessions (depending on course choices)
Timetable: Double semester.
Objectives:
Students should learn how to apply theory of mechanics and process behaviour to the analysis and design of engineering systems. Control Systems (Core) On completion, students should be able to: 1) design continuous and discrete controls for single-input, single-output systems employing "classical" (root locus and frequency response) and "modern" (pole placement augmented by observer) techniques; 2) demonstrate familiarity with the structure, components and programming of practical controllers, and the effects of sampling rate and amplitude quantization. Control Systems (Advanced) On completion, students should be able to: 3) design controls for multivariable systems using frequency response and linear quadratic Gaussian techniques; 4) demonstrate a knowledge and understanding of several advanced control theory topics. Dynamics of Machines (Core) On completion, students should be able to: 1) formulate physical and mathematical models of mechanical systems for vibration analysis. 2) obtain solutions from the mathematical model using analytical and/or numerical methods. 3)make effective use of above solutions for system identification, vibration isolation, predictions etc. Dynamics of Machines (Advanced) Upon completion, students should: have extended skill in selected vibration problems, chosen from advanced topics listed in the syllabus. Fluids (Core) On completion, students should have gained the ability to analyse and design a wide range of aerodynamic devices and comprehend several fundamental engineering problems through analyzing and studying low Reynolds number boundary layers and turbulence. Fluids (Advanced) On completion, students should be able to understand and apply theories and techniques which are at the forefront of fluid mechanics research. Mechanics of Solids (Core) On completion, students should have increased understanding of stress analysis of components such as non-circular shafts, comprehend the basics of fracture mechanics, fatigue and computational methods, be able to apply the principles of current techniques for the solution of complex stress analysis, fatigue and fracture mechanics problems. Mechanics of Solids (Advanced) Students completing the course should have a deeper understanding of the principles of elasticity, fatigue and fracture mechanics as applied to anisotropic and inhomogeneous materials. Thermodynamics (Core) Students on completion should understand the principles of operation and optimisation of combustion and air conditioning equipment for improved performance, including the quality of the air environment or work place. Thermodynamics (Advanced) On completion students should be able to analyse and design a range of energy processes or utilisation equipment and to appreciate the directions in which the technology will evolve for improved performance and/or operating economics.
Content:
Students must take core courses in all five sections, and advanced courses in three sections. Control Systems (Core) Control design methodology and implementation technology. Digital control theory: sampling theory, z-transforms, time and z-domain analysis; bilinear transformation and frequency domain analysis; stability; compensator design. Digital control technology: microprocessor structure, IO structure, interrupts and polling; digital interface components and systems; ADC and DAC; control implementation; PLCs. Control Systems (Advanced) Selection of topics from: Nonlinear systems; multivariable systems; linear systems theory; optimal control; adaptive control; knowledge-based systems. Dynamics of Machines (Core) Dynamic interaction. Forced and unstable vibrations. System modelling. Vibration of reciprocating and rotating machines. Vibration isolation: Eigenvalue problems. Response to initial excitation. Response to harmonic excitation. Torsional and bending vibrations. Vibration absorbers. Balancing of elastic rotors. Continuous models for machine elements and systems: Natural modes. Free and forced vibrations. Approximate methods. Dynamic system composition and design. Receptance matrices. Hydrodynamic lubrication: Reynold's equations. Linearise stiffness and damping coefficients. Bearings and their dynamic influence in rotating machines. Finite elements method: Element stiffness matrix. Application to machine and structure dynamics. Dynamics of Machines (Advanced) Selected from: 1) Non-linear vibrations: Free vibration of a single degree of freedom system. Forced vibration. Self-excited vibration. Limit cycles for friction induced vibrations. 2) Advance bearing dynamics: Application to stability problems of rotating machinery. 3) Dynamics of rotors: internal and external damping. Free and forced vibration. Influence of gyroscopic effects. Influence of supporting structures. Causes of instability. 4) Dynamic system composition: Principle of synthesis and analysis of complex systems. Analysis of pumping systems, robots and mechanisms. 5) Parametric vibrations. Asymmetry related stability problems in machines: Multi-degree of freedom systems. Simple and combined instability regions. 6) Random vibration. Vehicle dynamics: Stationary random processes. Ergodic random processes. Response of linear system to random excitation. Fluid Mechanics (Core) Wing theory: Prandtl lifting line; three-dimensional effects; aircraft performance; propellers, jets and fans and pumps. Waves, ship resistance; model testing; wave resistance; ocean waves. Boundary layers: Navier-Stokes equations; Prandtl's assumptions; Laminar solutions; Von Karman's momentum integral equation; transition; turbulence; turbulent boundary layers; turbulent flow in pipes and ducts. Fluid Mechanics (Advanced) Theories of turbulence; flow pattern topology; critical point theory; vortex dynamics. Mechanics of Solids (Core) Numerical methods - Finite differences, finite elements, displacement and force methods, element and structure stiffness matrices. Torsion - boundary conditions, shear stress trajectories, solutions by semi-inverse, Rayleigh-Ritz, Treffitz methods, thin tubes, thin open sections, multi-cell tubes. Engineering plasticity - instability, elasto-plastic deformation, bending of beams, residual stress, ultimate strength of plane structures, plastic collapse. Linear fracture mechanics - residual strength, safe-life, damage tolerance, brittle/ductile concepts, energy methods, system energy release rate, stress intensity factor, mixed mode cracking. Mechanics of Solids (Advanced) Bending and buckling of thin plates - laterally loaded rectangular plates, twisting, energy methods, structural instability, beams under axial and transverse loads, buckling of plates, buckling of shells, cured panels. Non-linear fracture mechanics and fatigue - crack opening displacement, energy methods, J and T* integrals, R-curve; fatigue mechanisms, low cycle fatigue, crack closure, life estimation, fatigue spectra. Composite materials - anisotrophy, matrix representation, coordinate transformation, symmetry, stiffness and compliance matrices, plies with arbitrary directions, anisotropic plate theory, laminations, maximum stress and strain theories, failure theories, edge stress and delamination Thermodynamics (Core) 1) Mass transfer, air-conditioning and refrigeration. Application to heating, cooling, humidification and dehumidification. 2) Combustion. Equilibrium and rate controlled reactions. Ignition, stability and flammability limits; detonation, premixed and diffusion flames. Radiation heat transfer. Pollution control. Thermodynamics (Advanced) Selected from 1) Steam turbines, boiler design and control characteristics. Cycle optimisation. Economics of plant operation. 2) Gas turbines. Cycle performance. Stationary and aircraft gas turbines. Working fluids in open and closed cycles. Component matching and off design. 3) I Engines. Ideal air and fuel-air cycles. Effect of fuel composition, dissociation and heat transfer on efficiency. Characteristics of spark ignition and diesel engines. Advanced engine simulation. Abnormal combustion. 4) Solar Energy. Absorptivity and transmissivity, selective surfaces and surface treatments. Thermal performance of collectors. Cost analyses. 5) Unsteady gas dynamics. Isentropic and non-isentropic wave propagation. One-dimensional unsteady compressible flow. Pressure exchangers and exhaust systems. 6) Generalized thermodynamic property relations. Maxwell's equations, Gibbs free energy and fugacity. Estimation of plant performance using rare working fluids. 7) Turbocharging. Compressor and turbine characteristics. Turbine performance. Turbo-charger/engine matching.
Assessment:
Laboratory, tutorial work, assignments and tests to a maximum of 30,000 words or equivalent; eight 90-minute papers at the end of second semester.
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Handbook 1996 : Faculty of Engineering (Volume 4 page 114)
Status: Official 1996 Date created: Oct 9 1995 Last modified: Oct 9 1995 Authorised by: Academic Registrar Email enquiries: Course_Information@registrar.unimelb.edu.au
Maintained by: Dept. of Mechanical and Manufacturing Engineering, Faculty of Engineering.
Copyright © University of Melbourne 1995,1996.