Results 31 to 40 of about 33,063 (224)

Estimation of Cumulative Noise Reduction at Certification Points for Supersonic Civil Aeroplane Using the Programmed Thrust Management at Take-off and Approach

Propulsion - New Perspectives and Applications [Working Title], 2021
The reduction of the cumulative noise level at certification points applying to the supersonic civil aeroplane is estimated in the paper. The reduction is obtained by using an programmed thrust management with Programmed Lapse Rate based on the variation
Mirzoyan Artur, Khaletskii Iurii
semanticscholar   +1 more source

Multidisciplinary Design Optimization for the Conceptual Design of Supersonic Civil Aircraft Based on Full-Carpet Sonic Boom/Aerodynamic Characteristics Employing Differential Evolution

Aerospace
Reducing the sonic boom intensity and increasing the cruise lift-to-drag ratio are pivotal technologies for the successful development of supersonic civil aircraft.
Yuyu Duan, Chonweng Wan, Runze Li, Haixin Chen   +3 more
doaj   +1 more source

Development of a robust solver to model the flow inside the engines for high-speed propulsion [PDF]

MATEC Web of Conferences, 2019
The demand for discovering new commercial routes as well as the possibility to shortening civilian long-haul flights boosted the interest of civil hypersonic vehicle designs.
Nista Ludovico, Saracoglu Bayindir H.
doaj   +1 more source

Jet Noise Prediction Benchmark for Landing and Takeoff Noise of Supersonic Aircraft

INTER-NOISE and NOISE-CON Congress and Conference Proceedings, 2023
This paper presents a brief overview of the EU-Project SENECA (LTO noiSe and EmissioNs of supErsoniC Aircraft) aiming to support certification authorities and the International Civil Aviation Organization's Committee on Aviation Environmental Protection (
Robert Jaron, Matti Gräbert, Remco Habing, Mark-Jan van der Meulen, Maxime Huet, I. LeGriffon, F. Petrosino, M. Barbarino, Katharina Lefarth, Oleksandr Zaporozhets   +9 more
semanticscholar   +1 more source

PROBLEMS OF CREATION OF AIRCRAFT CATEGORY PLANES ACCORDING TO ENVIRONMENTAL LIMITATIONS

Авіаційно-космічна техніка та технологія, 2020
With the growth of air transportation on airplanes of the transport category, their negative impact on the environment and humans increases. The environmental impact of civil aviation began to be addressed in the early 70s of the 20th century. There are
Александр Васильевич Лось, Виктор Иванович Рябков, Татьяна Николаевна Середа   +2 more
doaj   +1 more source

Additive Manufacturing of Cobalt Iron Oxide‐Based Photopolymer Resin Magnetoactive Polymer Composites Through Stereolithography

Macromolecular Materials and Engineering, EarlyView.
In this study, novel resin/cobalt iron oxide magnetic actuation polymer composites (MAPCs) are synthesized and optimized for stereolithography (SLA)‐based 3D printing. Printing parameters are tuned for dimensional accuracy and print quality. Comprehensive physicochemical, mechanical, and magnetic characterization identifies the optimal formulation ...
Ambreen Afridi, Ans Al Rashid, Muammer Koç   +2 more
wiley   +1 more source

Wing platforms of supersonic aircraft

Práce a štúdie, 2023
Goal of the paper is to describe various wing designs used in supersonic aircraft and their impact on lift, drag and stability with emphasis on high speed civil transport.
Richard Tabernaus, M. Bugaj, Michal Hrúz   +2 more
semanticscholar   +1 more source

Friction Shock Absorbers and Reverse Thrust for Fast Multirotor Landing on High‐Speed Vehicles

Journal of Field Robotics, Volume 43, Issue 2, Page 1068-1090, March 2026.
ABSTRACT Typical landing gears of small uninhabited aerial vehicles (UAV) limit their capability to land on vehicles moving at more than 20–50 km/h due to high drag forces, high pitch angles and potentially high relative horizontal velocities. To enable landing at higher speeds, a combination of lightweight friction shock absorbers and reverse thrust ...
Isaac Tunney, John Bass, Alexis Lussier Desbiens   +2 more
wiley   +1 more source

Spatial Variability of Sea State in the German Bight and Influence of Offshore Wind Farms

Wind Energy, Volume 29, Issue 3, March 2026.
ABSTRACT Offshore wind farms are growing worldwide and increase the source of renewable energy. However, as the extent and density of offshore wind farms increase, there is growing importance to understand the interactions with physical systems and the marine environment, in particular, the sea state.
Lea Schmitt, Konrad B. Bärfuss, Xiaoli Guo Larsén, Jana Fischereit, Astrid Lampert   +4 more
wiley   +1 more source

Discrete Adjoint Optimization Method for Low-Boom Aircraft Design Using Equivalent Area Distribution

Aerospace
This paper introduces a low-boom aircraft optimization design method guided by equivalent area distribution, which effectively improves the intuitiveness and refinement of inverse design. A gradient optimization method based on discrete adjoint equations
Chuang Ma, Jiangtao Huang, Daochun Li, Jun Deng, Gang Liu, Lin Zhou, Cheng Chen   +6 more
doaj   +1 more source