Results 11 to 20 of about 147,531 (294)

Safety Analysis of Aircraft Icing Detection System Based on Fault Tree

open access: yesHangkong gongcheng jinzhan, 2018
Aircraft icing detection system is very important to guarantee flight safety. It is also a new problem to assess safety of the aircraft icing detection system.
Wang Xiaohui   +3 more
doaj   +1 more source

Numerical Investigation on Aerodynamic Drag and Noise of Pantographs with Modified Structures [PDF]

open access: yesJournal of Applied Fluid Mechanics, 2022
It is well known that the pantograph, which works as a complex component of high-speed trains, is an important source of aerodynamic drag and aerodynamic noise of a high-speed train (HST) that can affect HST performance, comfort for passengers, and ...
Y. Yao   +5 more
doaj   +1 more source

Study on Interior Aerodynamic Noise Characteristics of the High-Speed Maglev Train in the Low Vacuum Tube

open access: yesApplied Sciences, 2022
As the next-generation high-speed transportation system, the low vacuum tube high-speed maglev system combines the tube with a certain degree of vacuum with the high-speed maglev train, which can realize high-speed operation under low aerodynamic ...
Jiali Liu   +3 more
doaj   +1 more source

X-34 vehicle aerodynamic characteristics [PDF]

open access: yes16th AIAA Applied Aerodynamics Conference, 1998
The X-34, being designed and built by the Orbital Sciences Corporation, is an unmanned sub-orbital vehicle designed to be used as a flying test bed to demonstrate key vehicle and operational technologies applicable to future reusable launch vehicles. The X-34 will be air-launched from an L-1011 carrier aircraft at approximately Mach 0.7 and altitudes ...
openaire   +1 more source

Calculation and analysis of aerodynamic characteristics for airfoils immersed in two-dimensional jet flow

open access: yesXibei Gongye Daxue Xuebao, 2022
In order to study the aerodynamic interaction of the airfoil and jet flow, the free streamline model and the panel method are combined to establish a calculation method for the aerodynamic characteristics of the airfoil in a two-dimensional inviscid jet ...
LI Xu, ZHOU Zhou, GUO Jiahao, XUE Chen
doaj   +1 more source

Assessment of Impact of Aerodynamic Loads on the Stability and Control of the Gyrocopter Model

open access: yesCommunications, 2020
Aerodynamic modelling currently relates to development of mathematical models to describe the aerodynamic forces and moments acting on the aircraft.
Tomasz Lusiak   +3 more
doaj   +1 more source

New Aerodynamic Studies of an Adaptive Winglet Application on the Regional Jet CRJ700

open access: yesBiomimetics, 2021
This study aims to evaluates how an adaptive winglet during flight can improve aircraft aerodynamic characteristics of the CRJ700. The aircraft geometry was slightly modified to integrate a one-rotation axis adaptive winglet.
Marine Segui   +3 more
doaj   +1 more source

An Improved Nonlinear Aerodynamic Derivative Model of Aircraft at High Angles of Attack

open access: yesInternational Journal of Aerospace Engineering, 2021
The classical aerodynamic derivative model is widely used in flight dynamics, but its application is extremely limited in cases with complicated nonlinear flows, especially at high angles of attack.
Mi Baigang, Yu Jingyi
doaj   +1 more source

Numerical investigation on aerodynamic characteristics of a high-speed train travelling through a bridge–tunnel section under non-uniform airflows caused by mountain terrain effect

open access: yesEngineering Applications of Computational Fluid Mechanics, 2023
A thorough understanding of aerodynamic characteristics of a high-speed train in a bridge–tunnel section is of extremely importance to ensure the vehicle safety of driving. This study presents a numerical investigation on aerodynamic characteristics of a
Hao Hu   +4 more
doaj   +1 more source

Study on Nonlinear Aerodynamic Characteristics of a Semi-Closed Box Bridge Deck Based on Coupled Amplitude Variation

open access: yesApplied Sciences, 2022
This paper explores the nonlinear characteristics of the self-excited aerodynamic forces of a semi-closed box deck section to perfect the theory of aeroelastic response analysis.
Haoyang Lu   +3 more
doaj   +1 more source

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