Maintaining design intent for aircraft manufacture (original) (raw)
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Methodology to Aircraft Design – Market Study & Design Optimization
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Adapting Systems Engineering to the Development of Commercial Aircraft
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Towards Thinking Manufacturing and Design Together: An Aeronautical Case Study
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The construction of complex objects, such as an aircraft, requires the creation of a dedicated industrial system. By industrial system, we mean all the material and immaterial means used to manufacture the object (labour, machines, factories, etc.). Classically, the industrial system is specified when the aircraft design is already engaged. In other words, the specifications of the product are the requirements of the industrial system. This approach presents two major drawbacks: firstly, the industrial system can inherit blocking constraints that could be easily removed by changing the aircraft design, and secondly, both continue to evolve during the lifetime of the aircraft programme. In this paper, we address the problem of having a global view of design and manufacturing. Starting from an industrial case study, the Airbus A320 aircraft manufacturing, we proposed a model-based approach, firsts steps towards tools for specifying together and consistently the design of an aircraft and its manufacturing system.
Adapting Systems Engineering to the Development of Regional Jets
This paper presents some alternative ways that the systems engineering process can be adapted for the commercial aviation domain. In particular the paper addresses some of the more onerous tasks normally performed in the military and aerospace domains. Among these processes are the requirements process and the design review process. The unique aspects of regional jets are explained. Other areas addressed are the organizational responsibilities in the commercial domain in which many organizations traditionally perceived to be managerial and non-technical have important roles in the systems engineering process. A final area addressed is supply chain management in which systems engineering is seen to have an important roll in helping to reduce the risks often seen in this process. The paper also suggests that these reforms could also result in higher quality products in the military and aerospace domains. This paper is adapted from selected parts of the book Systems Engineering for Commercial Aircraft by Scott Jackson (Farnham: Ashgate, 2015) by permission of the publishers (Farnham: Ashgate, 2015). Copyright © 2015.
Aircraft Design explores the conceptual phase of a fixed-wing aircraft design project. Designing an aircraft is a complex, multifaceted process that embraces many technical challenges in a multidisciplinary environment. By definition, the topic requires intelligent use of aerodynamic knowledge to configure aircraft geometry suited specifically to a customer's demands. It involves configuring aircraft shape, estimating its weight and drag, and computing the available thrust from the matched engine. The methodology includes formal sizing of the aircraft, engine matching, and substantiating performance to comply with a customer's demands and government regulatory standards. Associated topics include safety issues; environmental issues; material choice; structural layout; and understanding the flight deck, avionics, and systems (for both civil and military aircraft). Cost estimation and manufacturing considerations also are discussed. The chapters are arranged to optimize understanding of industrial approaches to aircraft-design methodology. Example exercises based on the author's industrial experience with typical aircraft design are included. Additional sections specific to military aircraft highlighted with an asterisk are available on the Web at www.cambridge.org/Kundu
On Aircraft Conceptual Design A Framework for Knowledge Based Engineering and Design Optimization
HIS THESIS PRESENTS a design framework where analytical tools are linked together and operated from an efficient system level interface. The application field is aircraft conceptual design. Particular attention has been paid to CAD system integration and design optimization. T Aircraft design is an inherently multidisciplinary process. The goal is to search for the design that, in the best of possible ways, fulfills the requirements. It is therefore desirable to be able to effectively investigate and analyze solutions from a variety of points of view, weighting together the results and gathering a general figure of merit. At the same time, increasing competition on a global market forces to shorten the design process and to reduce costs. Thus a system that allows a tight and efficient integration of different disciplines and improving data flow and storage plays a key role. Integrating a CAD system to the framework is of central relevance. The geometrical model includes most of the information; specific data, required to carry out particular analysis, can be extracted from it. This is possible adopting parametric associative models that are controlled from a spreadsheet user interface. Strategies for building CAD models with a very high degree of flexibility are presented. Not only the external shape can be changed, but also the internal structure can be completely modified. Structural elements can be added or removed, and their position and shaping changed.
Aircraft design; Ajoy Kumar Kundu
Aircraft Design explores the conceptual phase of a fixed-wing aircraft design project. Designing an aircraft is a complex, multifaceted process that embraces many technical challenges in a multidisciplinary environment. By definition, the topic requires intelligent use of aerodynamic knowledge to configure aircraft geometry suited specifically to a customer's demands. It involves configuring aircraft shape, estimating its weight and drag, and computing the available thrust from the matched engine. The methodology includes formal sizing of the aircraft, engine matching, and substantiating performance to comply with a customer's demands and government regulatory standards. Associated topics include safety issues; environmental issues; material choice; structural layout; and understanding the flight deck, avionics, and systems (for both civil and military aircraft). Cost estimation and manufacturing considerations also are discussed. The chapters are arranged to optimize understanding of industrial approaches to aircraft-design methodology. Example exercises based on the author's industrial experience with typical aircraft design are included. Additional sections specific to military aircraft highlighted with an asterisk are available on the Web at www.cambridge.org/Kundu
The aircraft design process is the engineering design process by which aircraft are designed. These depend on many factors such as customer and manufacturer demand, safety protocols, physical and economic constraints etc. For some types of aircraft the design process is regulated by national airworthiness authorities. This article deals with powered aircraft such as airplanes and helicopter designs. Aircraft design is a compromise between many competing factors and constraints and accounts for existing designs and market requirements to produce the best aircraft.