Download Advanced Aircraft Design: Conceptual Design, Technology and by Egbert Torenbeek PDF

By Egbert Torenbeek

Although the final visual appeal of recent airliners has no longer replaced much because the advent of jetliners within the Nineteen Fifties, their safeguard, potency and environmental friendliness have greater significantly. major members to this were fuel turbine engine expertise, complicated fabrics, computational aerodynamics, complex structural research and on-board platforms. due to the fact airplane layout turned a hugely multidisciplinary task, the improvement of multidisciplinary optimization (MDO) has turn into a favored new self-discipline. regardless of this, the appliance of MDO in the course of the conceptual layout part isn't really but widespread.

Advanced plane layout: Conceptual layout, research and Optimization of Subsonic Civil Airplanes offers a quasi-analytical optimization strategy in keeping with a concise set of sizing equations. goals are aerodynamic potency, challenge gas, empty weight and greatest takeoff weight. autonomous layout variables studied contain layout cruise altitude, wing sector and span and thrust or strength loading. Principal  good points of built-in recommendations comparable to the mixed wing and physique and hugely non-planar wings also are covered. 

The quasi-analytical technique allows designers to check the result of high-fidelity MDO optimization with lower-fidelity equipment which desire a long way much less computational attempt. one other virtue to this process is that it could actually offer solutions to “what if” questions swiftly and with little computational cost.

Key features:
• provides a brand new basic imaginative and prescient on conceptual plane layout optimization
• presents an outline of complex applied sciences for propulsion and lowering aerodynamic drag
• deals perception into the derivation of layout sensitivity information
• Emphasizes layout in accordance with first principles
• Considers execs and cons  of cutting edge configurations
• Reconsiders optimal cruise functionality at transonic Mach numbers

Advanced airplane layout: Conceptual layout, research and Optimization of Subsonic Civil Airplanes advances knowing of the preliminary optimization of civil airplanes and is a must have reference for aerospace engineering scholars, utilized researchers, plane layout engineers and analysts.

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Additional info for Advanced Aircraft Design: Conceptual Design, Technology and Optimization of Subsonic Civil Airplanes (Aerospace Series)

Example text

Wing loading and engine thrust are design variables, MTOW is the figure of merit If the overall concept is within the designer’s experience, parametric investigations may be helpful in optimization work although this pragmatic approach may not be entirely satisfactory for the following reasons. • Due to the restricted number of selection variables, there is no guarantee that the solution represents the ‘real optimum’. • The method is practical for a small number of selection variables. The designer may resist increasing the design space since the addition of more variables will increase the amount of computation by an order of magnitude.

The objective is to explore a preferred configuration3 to determine a layout which is technically superior and economically viable. This involves preliminary performance predictions and provision of three-dimensional electronic drawings with several cross-sections, an inboard profile showing the approximate placement and size of the major vehicle components. A weight and balance diagram provides another essential proof of concept. There is an intimate relationship between the design objectives of an aircraft and the configuration concept capable of fulfilling these objectives.

10 Overview of disciplines and enabling technologies In general, this requires the introduction of an advanced but sufficiently mature technology standard in several design disciplines. Accordingly, conceptual design studies are frequently initiated to assess how the application of new technology will affect future designs rather than to develop a new aircraft development project. Disregarding the appearance of a new engine generation, the largest impact on operating economics is due to the accumulative effect of several relatively small advancements.

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