Zobrazeno 1 - 10
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Autor:
Miaomiao Wang, Ziniu Wu
Publikováno v:
Chinese Journal of Aeronautics, Vol 34, Iss 5, Pp 399-403 (2021)
The reflection of a moving shock wave over a wedge immersed in a still gas and the reflection of a wedge induced steady shock wave over symmetrical and asymmetrical reflecting surfaces have received intensive considerations since more than 70 years a
Publikováno v:
Chinese Journal of Aeronautics, Vol 34, Iss 3, Pp 50-60 (2021)
The dynamic performance of a nozzle-flapper servo valve can be affected by several factors such as the disturbance of the input signal, the motion of the armature assembly and the oscillation of the jet force. As the part of vibrating at high frequen
Publikováno v:
Chinese Journal of Aeronautics, Vol 34, Iss 1, Pp 380-396 (2021)
A theoretical formulation for time-domain nonlinear aeroelastic analysis of a flexible wing model is presented and validated by wind tunnel tests. A strain-based beam model for nonlinear structural analysis is combined with the Unsteady Vortex Lattic
Publikováno v:
Chinese Journal of Aeronautics, Vol 33, Iss 12, Pp 3331-3343 (2020)
The solar rotation causes the solar Doppler difference bias, which leads to the decline of the velocity measurement accuracy. Modeling and compensation are an effective solution. The limited model with specific geometric direction, where the solar ro
Publikováno v:
Chinese Journal of Aeronautics, Vol 33, Iss 2, Pp 493-500 (2020)
Morphing wings can improve aircraft performance during different flight phases. Recently research has focused on steady aerodynamic characteristics of the morphing wing with a flexible trailing-edge, and the unsteady aerodynamic and stall characteris
Publikováno v:
Chinese Journal of Aeronautics, Vol 32, Iss 11, Pp 2526-2537 (2019)
Beam flexure hinges can achieve accurate motion and force control through the elastic deformation. This paper presents a nonlinear model for uniform and circular cross-section spatial beam flexure hinges which are commonly employed in compliant paral
Publikováno v:
Chinese Journal of Aeronautics, Vol 32, Iss 3, Pp 568-576 (2019)
Focusing on aerodynamic characteristics of rigid coaxial rotor of a high-speed helicopter in hover and forward flight, a wind tunnel test is conducted in the 8 m × 6 m low-speed straight-flow wind tunnel of China Aerodynamics Research and Developmen
Publikováno v:
Chinese Journal of Aeronautics, Vol 31, Iss 10, Pp 2013-2022 (2018)
Low-Earth-Orbit (LEO) formation-flying satellites have been widely applied in many kinds of space geodesy. Precise Relative Orbit Determination (PROD) is an essential prerequisite for the LEO formation-flying satellites to complete their mission in s
Publikováno v:
Chinese Journal of Aeronautics, Vol 31, Iss 5, Pp 1085-1094 (2018)
Bulk flow model with perturbation simplification has been used to calculate rotordynamic coefficients in annular seals which have significant influences on the dynamic behavior of rotors in turbomachinery. In this work, a transient bulk flow model wi
Publikováno v:
Chinese Journal of Aeronautics, Vol 31, Iss 3, Pp 490-497 (2018)
The present paper aims to reveal the significance of rigid-body motions for the flutter mechanism of a span-morphing wing model. The inclusion of rigid-body motions into aeroelastic formulation and flutter analysis is presented. A state-space aeroela