The thesis is about analysing the capability of the civil aircraft industry in contributing towards improved national technological competitiveness. The South African government recognises the potential for the country’s aircraft industry to contribute to the growth of the national economy. However, it is not known if the current support mechanisms are adequate for developing the appropriate technological base and for promoting the innovative capabilities of the industry. Countries with successful aircraft industries were studied: South Korea and Brazil were used to represent emerging economies and France was used to represent developed economies. This was done to analyse existing models or frameworks and/or commonalities that led to the successful development of technologically competitive civil aircraft industries internationally. The South African civil aircraft industry was also studied, and its technology development competence was compared to that of successful countries. How the local technology development framework could be structured or improved, using lessons from successful countries, was considered. Local participants were representatives of the South African government departments or ministries (DTI; and DST), academia (The University of the Witwatersrand – Wits; and the University of Cape Town – UCT), research institutions (CSIR and NRF), and firms (Aerosud, Denel, and Aerospace Monitoring and Systems – AMS). Based on the analysis of the findings, frameworks aimed at improving the technological base of the South African civil aircraft industry were proposed as follows: </ul> <li> The development of technology capability building through government interventions. This emphasises aggressive government interventions that encourage collaboration between firms in the industry, and with research and higher education institutions, followed by major investment in research and development.</li> <li> An institutional structure for the development of national aircraft technology. This is aimed at strengthening the technology development arena of the South African aircraft industry, through acquired projects, but with less emphasis on business acquisition.</li> <li> The establishment of the South African Aircraft Industry Corporation (SAAIC), a technology development and skills-transfer programme.</li> </ul> Copyright / Thesis (PhD)--University of Pretoria, 2009. / Graduate School of Technology Management (GSTM) / unrestricted

This graduation thesis is about Boeing and Airbus in the International Business. The first part of this thesis describes history, corporate structure of Airbus and Boeing. After that follows the most important target about Project A380 and B 787. In this part there is also analysis of financial performance and Swot analysis.

A broad and poorly focused debate has, for quite some time, raged across the range of social science disciplines and policy related professions. This debate has dealt, in different ways, with the question of the proper role of the government in a mixed economy. Current debates over the appropriate role of government in a mixed economy are largely constrained by a basic set of 'market failure' concepts developed in economics. This dissertation interrogates the histories of the automobile, electrical and aircraft industries in the six decades spanning the turn of the 20th century with a theoretical framework that draws on recent theorizing on the co-evolution of technologies, industrial structure, and supporting institutions. In highlighting institutional and technological aspects of industrial development, this dissertation informs a basis for science and technology policy making that moves beyond 'market failure' analysis.

An approach to multidisciplinary optimization is presented which combines the Global Sensitivity Equation method, parametric optimization, and analytic technology models. The result is a powerful yet simple procedure for identifying key design issues. It can be used both to investigate technology integration issues very early in the design cycle, and to establish the information flow framework between disciplines for use in multidisciplinary optimization projects using much more computationally intense representations of each technology. To illustrate the approach, an examination of the optimization of a short takeoff heavy transport aircraft is presented for numerous combinations of performance and technology constraints. / Master of Science

No description available.

A data reduction method has been developed and tested for a high frequency angle probe. The angle probe is designed for unsteady aerodynamic measurements in transonic cryogenic wind tunnels. The probe measures time-resolved total pressure, static pressure, angle of attack, and yaw angle from readings of four pressure transducers. The unique feature of this probe, as compared to a conventional multi-hole directional probe, is that the four high frequency response silicon pressure transducers are mounted flush on the probe tip. The data reduction method is basically an interpolation routine of calibration curves. The calibration curves consist of experimentally determined non-dimensional flow coefficients. Two experiments were conducted to test the probe and the data reduction method. The first experiment tested the angle probe in a Karman vortex street shed from a cylinder. In the second experiment, the angle probe was placed in an open air jet with an exit Mach number of 0.42. Plots of the time-resolved measurements and the Fast Fourier Transform analysis were made for each test. / Master of Science

The purpose of this study was to develop a simple one- dimensional finite element for the nonlinear analysis of symmetrically and unsymmetrically laminated composite beams including shear deformation. There is a need for a simple and efficient method for analyzing unsymmetrically laminated beams since no other study on this topic is currently available. The beam element has ten degrees of p freedom at each of the two nodes: the axial displacement, the transverse deflection due to bending and shear, the twisting angle, the inplane shear rotation, and their derivatives along the axial direction. The formulation, solution procedure, and the computer program have been evaluated by solving a series of examples on the static response, free vibration, buckling, and nonlinear vibrations of isotropic and laminated beams. For unsymmetrically laminated beams, the nonlinear vibrations were found to have a soft spring behavior for certain boundary conditions as opposed to a hard spring behavior observed in isotropic and symmetrically laminated beams. The inplane boundary conditions were found to have a significant effect on nonlinear responses. / Master of Science

Thesis (Ph. D.)--Miami University, Dept. of Political Science, 2008. / Title from first page of PDF document. Includes bibliographical references (p.112-118).

Thesis is submitted in partial fulfilment for the degree of Master of Science (Development Planning) to the Faculty of Engineering and the Built Environment, School of Architecture and Planning at the University of the Witwatersrand, Johannesburg, 2017 / O.R Tambo International Airport (ORTIA) holds strong prominence as Africa’s biggest airport. Additionally, the anticipated growth of aviation within Africa will further enhance its relevance. Airports in their own right are becoming city cores of which its surrounding environments (aerotropolis) attract special industries which result to a transformation of the urban fabric. Ekurhuleni has followed global trends by asserting its decision to transform ORTIA into an Aerotropolis. The legitimacy of the aerotropolis model however is being questioned for the effects on the natural environment, displacement effects and its heavy dependence on government incentives required that tend to have a bias focus on foreign investment. Ekurhuleni is confronted by unique contextual factors of inequality and spatial racial-segregation that are the result of the historical South African apartheid system. Additionally, Ekurhuleni comes from a unique premise that it is a relatively newly established city that has been formed by amalgamating nine previous towns. Irrespective of this incomparable situation of being a non-traditional metropolis, Ekurhuleni not having a traditional metropolis, notably relying on the adjacent City of Johannesburg for its identity, it has sought punch above its weight and thrive to become an airport city. This research explores the spatial impacts of O.R Tambo International Airport on Ekurhuleni Area through qualitative research methods and a review of key theories that are born from neo-liberal policies and airport orientated developments. It explores current developments with O.R Tambo International Airport and Ekurhuleni focusing on physical, economic and social spaces that are owed to the existence of the airport. O.R Tambo International Airport has had significant spatial impact on Ekurhuleni area. The spatial impacts undeniably led to positives through the conception of competitive, economically thriving and innovative environments which align to global, competitive cities. As part of the Gauteng City Region (GCR), Ekurhuleni is placing strong leverage on the existence of the airport to shape the city spatially. There is a strong focus on increasing scale and density within the immediate surrounds of the airport through development infill and replacement of single dwellings with apartments and hotels. The corridors and spines developed place focus on links to the airport as the key central point in which its development stems. The environment reveals industrial clusters which gain economically through the agglomeration effects. It is also stimulating focus on the presence of social facilities such as tourism, retail and hotels which would serve the airport. The traditionally manufacturing based economy of Ekurhuleni is integrating with knowledge economy industries which are aligned to global cities. The city is focusing on compaction with new development being mixed- use spaces connected by a multi modal transport network. These Integrated Transport Networks are concretised by recent investments into the Gautrain and the Bus Rapid Transitsystem (BRT). The previous far reaching edge cities that were the black traditional townships are being connected to the metro core through increasing available modes of public transport. There still remains the threat that airports become contributory factor to the creation of exclusionary spaces faced with environmental threats. It is noted that in an unequal society such as South Africa, areas surrounding airports may exacerbate the challenges of crime and further displacement of residents. The spatial formation process within Ekurhuleni involved multi-disciplinary actors from various industries and decision making cuts across the various spheres of government. Non-robust community engagements coupled by their lack of knowledge on the aerotropolis initiative has reflected that there needs to be a focus on the empowerment of citizens. Branding has been recognized as critical for city competitiveness. The resultant effects of Ekurhuleni being formed from a combination of towns has left it with meek and ambiguous identity. The formulation of robust branding policies and building on the strength of ORTIA brand has the potential to give Ekurhuleni’s vague character significant leverage. Overall, ORTIA’s spatial contribution has both a positive and negative spatial impacts on Ekurhuleni. ORTIA gives competitive advantage to the Gauteng City Region (GCR) and it acts as an urban development stimuli to Ekurhuleni as the GCR gateway airport. Planning can however be instrumental in remedial actions on addressing the negative corollaries caused by airports to their surrounds. Hence it is recommended that a communicative and collaborative planner; who encourages equitable capacity development practices, would be effective in managing the spatial formation process within Ekurhuleni. / MT2018

A indústria aeronáutica está constantemente à procura de materiais que ofereçam benefícios em termos de redução de peso, desempenho e custo. Corrosão e fadiga em ligas de alumínio são questões importantes na avaliação da vida útil em estruturas de aeronaves e na gestão de frotas. O objetivo deste trabalho foi avaliar os processos de corrosão e corrosão-fadiga nas ligas 2198-T851 e 7081-T73511, que são promissoras substitutas das ligas 2524-T3 e 7050-T7451 normalmente utilizada pela indústria aeronáutica. As técnicas de potencial de circuito aberto (PCA), polarização potenciodinâmica, polarização potenciodinâmica em eletrodo cilíndrico rotatório, espectroscopia de impedância eletroquímica (EIE), eletrodo vibratório de alta resolução (SVET) e mapeamento de potencial (SKP) foram utilizadas para esclarecer e quantificar os mecanismos de corrosão destas ligas de alumínio. Os ensaios de fadiga e corrosão-fadiga foram realizados com uma razão de carga (R) de 0,1 e frequência de 15 Hz em ar e 0,1 Hz em meio de névoa salina. As amostras, antes e após os testes de corrosão e corrosão-fadiga foram analisadas usando microscopia eletrônica de varredura (MEV). As características localizadas das quatro ligas estão essencialmente relacionadas com a existência de compostos intermetálicos que, devido à sua natureza diferente, podem ser catódicos ou anódicos em relação à matriz de alumínio. Os resultados de corrosão-fadiga mostraram uma ligeira redução no limite de fadiga para as ligas da série 2XXX e 7XXX. Essa redução pode ser atribuída à formação de cavidades de corrosão (pites). Considerando o estágio de propagação de trinca, o ambiente salino aumentou a taxa de crescimento de trinca para um mesmo intervalo de fator de intensidade de tensão. / The aircraft industry is constantly looking for improved materials which offer benefits in terms of performance, weight and cost savings. Corrosion and fatigue of aluminium alloys are major issues in the service life assessment of aircraft structures and in the management of aging air fleets. The aim of this study was to evaluate the corrosion and corrosion fatigue processes of 2198-T851 and 7081-T73511 aluminium alloys, which are promising substitutes for the base line 2524-T3 and 7050-T7451 aluminium alloys normally used in aircraft fabrication. Open circuit potential monitoring (OCP), potentiodynamic polarization, potentiodynamic polarization in rotating cylindrical electrode, eletrochemical impedance spectroscopy (EIS), Scanning vibrating electrode technique (SVET) and Scanning Kelvin Probe (SKP) techniques have been used to clarify and quantify the corrosion mechanisms of these Al alloys. Fatigue and corrosion fatigue tests were carried out an applied stress ratio (R) of 0.1, 15 Hz frequency for air and 0.1 Hz frequency for salt spray using a sinusoidal wave form in all cases. The specimens, before and after corrosion and corrosion-fatigue testing were analyzed using scanning electron microscope (SEM). The localised features of all the four alloys are essentially related to the existence of intermetallics that, due to their different nature, may be cathodic or anodic sites in relation to the Al matrix. SEM and EDS analysis allowed to identify the intermetallics that are more active in determining the corrosion behavior of the specimens. The fatigue corrosion results show a slightly reduction in the fatigue life limit by chloride environment for the 2XXX and 7XXX aluminium alloys in each aged condition might be partially attributed to the formation of corrosion pits. Considering the crack propagation stage, the saline environment increased the fatigue crack growth rate for the same range of stress intensity factor.