منابع مشابه
Integration of Propulsion-Airframe-Aeroacoustic Technologies and Design Concepts for a Quiet Blended- Wing-Body Transport
This paper summarizes the results of studies undertaken to investigate revolutionary propulsion-airframe configurations that have the potential to achieve significant noise reductions over present-day commercial transport aircraft. Using a 300 passenger BlendedWing-Body (BWB) as a baseline, several alternative low-noise propulsion-airframeaeroacoustic (PAA) technologies and design concepts were...
متن کاملSystem Noise Assessment of Blended-Wing-Body Aircraft with Open Rotor Propulsion
An aircraft system noise study is presented for the Blended-Wing-Body (BWB) aircraft concept with three open rotor engines mounted on the upper surface of the airframe. It is shown that for such an aircraft, the cumulative Effective Perceived Noise Level (EPNL) is about 24 dB below the current aircraft noise regulations of Stage 4. While this makes the design acoustically viable in meeting the ...
متن کاملAerodynamic Design Optimization Studies of a Blended-Wing-Body Aircraft
Abstract The blended-wing body is an aircraft configuration that has the potential to be more efficient than conventional large transport aircraft configurations with the same capability. However, the design of the blended-wing is challenging due to the tight coupling between aerodynamic performance, trim, and stability. Other design challenges include the nature and number of the design variab...
متن کاملPreliminary Design of a Blended Wing Body Configuration using the Design Tool PrADO
New, unconventional aircraft configurations like the blended wing-body (BWB) are expected to significantly improve the economic efficiency of future air-transport. In order to investigate potential improvements and to predict major design challenges of this new class of aircraft the modelling and analysis capabilities of the in-house aircraft design tool of the IFL, PrADO, have been adapted to ...
متن کاملDistributed Turboelectric Propulsion for Hybrid Wing Body Aircraft
Meeting future goals for aircraft and air traffic system performance will require new airframes with more highly integrated propulsion. Previous studies have evaluated hybrid wing body (HWB) configurations with various numbers of engines and with increasing degrees of propulsion-airframe integration. A recently published configuration with 12 small engines partially embedded in a HWB aircraft, ...
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ژورنال
عنوان ژورنال: International Journal of Aviation, Aeronautics, and Aerospace
سال: 2017
ISSN: 2374-6793
DOI: 10.15394/ijaaa.2017.1187