Browsing Department of Mechanical and Mechatronic Engineering by Title

Now showing items 1-20 of 323

  • Accounting for proof test data in Reliability Based Design Optimization 

    Ndashimye, Maurice (Stellenbosch : Stellenbosch University, 2015-03)
    ENGLISH ABSTRACT: Recent studies have shown that considering proof test data in a Reliability Based Design Optimization (RBDO) environment can result in design improvement. Proof testing involves the physical testing of ...

  • Aerodynamic characteristics of a mission-adaptive stealthy air inlet 

    Marais, Louwrens (Stellenbosch : Stellenbosch University, 2003-12)
    ENGLISH ABSTRACT: The aerodynamic performance of a mission-adaptive air inlet for a stealthy unmanned aircraft was examined using CFX 5.5, a commercial Computational Fluid Dynamics package. In order to ensure that the ...

  • Aerodynamic development of a contra-rotating shrouded rotor system for a UAV 

    Geldenhuys, Heinrich Jacques (Stellenbosch : Stellenbosch University, 2015-03)
    ENGLISH ABSTRACT: Unmanned aerial vehicles with vertical take-off and landing capabilities have received extensive attention worldwide in the last decade. Their low detectability, high manoeuvrability in confined spaces, ...

  • Aerodynamic optimisation of a small-scale wind turbine blade for low windspeed conditions 

    Cencelli, Nicolette Arnalda; Von Bakstrom, T.W.; Denton, T.S.A. (Stellenbosch : Stellenbosch University, 2006-12)
    ENGLISH ABSTRACT: Wind conditions in South Africa determine the need for a small-scale wind turbine to produce useable power at windspeeds below 7m/s. In this project, a range of windspeeds, within which optimal performance ...

  • Aiming strategies for small central receiver systems 

    Grobler, Annemarie (Stellenbosch : Stellenbosch University, 2015-03)
    ENGLISH ABSTRACT: Concentrating solar power as a sustainable energy technology is considered favourable in South Africa due to the high solar resource and the integration possibilities with the current electricity grid. ...

  • Air turbine design study for a wave energy conversion system 

    Ackerman, Paul Henry (Stellenbosch : University of Stellenbosch, 2010-03)

  • Air-cooled condenser steam flow distribution and related dephlegmator design considerations 

    Owen, Michael Trevor Foxwell (Stellenbosch : Stellenbosch University, 2013-12)
    ENGLISH ABSTRACT: The steam-side side operation of a practical air-cooled steam condenser is investigated using a combination of CFD, numerical, analytical and experimental methods. Particular attention is directed towards ...

  • An algorithm for fast optimal Latin hypercube design of experiments 

    Viana, Felipe A. C.; Venter, Gerhard; Balabanov, Vladimir (Wiley-Blackwell, 2010-04)
    This paper presents the translational propagation algorithm, a new method for obtaining optimal or near optimal Latin hypercube designs (LHDs) without using formal optimization. The procedure requires minimal computational ...

  • Analysis of evaporative coolers and condensers 

    Dreyer, Andre Alexis (Stellenbosch : Stellenbosch University, 1988)
    ENGLISH ABSTRACT: In this report various mathematical models for the thermal evaluation of evaporative coolers and condensers are presented. These models range from the exact model based on the work by Poppe [84P01] to ...

  • Analytical and a numerical ground resonance analysis of a conventionally articulated main rotor helicopter 

    Eckert, Bernd (Stellenbosch : University of Stellenbosch, 2007-03)
    The helicopter is a prime example of a nonlinear multi-body dynamic system that is subjected to numerous forces and motions to which the system must react. When a helicopter, with a conventionally articulated rotor head, ...

  • Analytical modelling and optimization of a thermal convective microfluidic gyroscope 

    Vosloo, Surika (Stellenbosch : University of Stellenbosch, 2010-03)
    ENGLISH ABSTRACT: This thesis deals with the mathematical optimization of the detecting chamber of a thermal convective microfluidic gyroscope and the comparison of several different optimization strategies. An analytical ...

  • Application of commingled thermoplastic composites on an airline seat backrest 

    Mattheyse, Richard (Stellenbosch : University of Stellenbosch, 2009-12)
    ENGLISH ABSTRACT: Thermoplastic composites (TPCs) have shown significant advantages over thermosetting composites. They have only been put into use recently and global knowledge in TPCs is often proprietary, therefore a ...

  • Application of laser doppler vibrocardiography for human heart auscultation 

    Koegelenberg, Suretha (Stellenbosch : Stellenbosch University, 2014-04)
    ENGLISH ABSTRACT: This thesis investigates the feasibility of the laser Doppler vibrometer (LDV) for use in the autonomous auscultation of the human heart. As a non-contact measurement device, the LDV could become a very ...

  • Application of turbochargers in spark ignition passenger vehicles 

    Bester, Wallace William (Stellenbosch : University of Stellenbosch, 2006-03)
    The quest for higher efficiency of the internal combustion engine will always be pursued. Increasingly stringent emission regulations are forcing manufacturers to downsize on engine displacement and increase specific power. ...

  • Aspects of distributed conceptual design support 

    Schueller, Andreas (Stellenbosch : Stellenbosch University, 2002-04)
    ENGLISH ABSTRACT: The findings of an investigation into the requirements of a support system for distributed conceptual design in small and medium enterprises are presented. Distributed conceptual design refers to the ...

  • Aspects of waste heat recovery and utilisation (WHR&U) in pebble bed modular reactor (PBMR) technology 

    Senda, Franck Mulumba (Stellenbosch : Stellenbosch University, 2012-03)
    ENGLISH ABSTRACT: The focus of this project was on the potential application of waste heat recovery and utilisation (WHR&U) systems in pebble bed modular reactor (PBMR) technology. The background theory provided in the ...

  • Automatic positioner and control system for a motorized parabolic solar reflector 

    Prinsloo, Gerhardus Johannes (Stellenbosch : Stellenbosch University, 2014-12)
    ENGLISH ABSTRACT: Most rural African villages enjoy high levels of sunlight, but rolling out solar power generation technology to tap into this renewable energy resource at remote rural sites in Africa pose a number of ...

  • Autonomous auscultation of the human heart 

    Botha, J. S. F. (Stellenbosch : University of Stellenbosch, 2010-03)
    ENGLISH ABSTRACT: The research presented in this thesis serves to provide a tool to autonomously screen for cardiovascular disease in the rural areas of Africa. Vital information thus obtained from patients can be ...

  • Benchmarking full-body inertial motion capture for clinical gait analysis 

    Cloete, Teunis (Stellenbosch : University of Stellenbosch, 2009-03)
    Clinical gait analysis has been proven to greatly improve treatment planning and monitoring of patients suffering from neuromuscular disorders. Despite this fact, it was found that gait analysis is still largely underutilised ...

  • Blade row and blockage modelling in an axial compressor throughflow code 

    Thomas, Keegan D. (Stellenbosch : University of Stellenbosch, 2005-03)
    The objective of the thesis is to improve the performance prediction of axial compressors, using a streamline throughflow method (STFM) code by modelling the hub and casing wall boundary layers, and additional flow ...