Zobrazeno 1 - 10
of 174
pro vyhledávání: '"Yihua Cao"'
Publikováno v:
Applied Sciences, Vol 13, Iss 12, p 7214 (2023)
In this article, a degeneration method of inverse simulation is proposed for a helicopter system flying pull-up and slalom maneuvers. This inverse simulation method has been successfully applied, and here, the results are compared with the flight tes
Externí odkaz:
https://doaj.org/article/be289a98409c46b89e95382eadfd514a
Publikováno v:
Journal of Marine Science and Engineering, Vol 10, Iss 10, p 1455 (2022)
Landing a helicopter to the ship flight deck is most demanding even for the most experienced pilots and modeling and simulation of the ship-helicopter dynamic interface is a substantially challenging technical problem. In this paper, a coupling numer
Externí odkaz:
https://doaj.org/article/b36ebb1f322a458f9df45cb983f67b85
Publikováno v:
International Journal of Aerospace Engineering, Vol 2021 (2021)
Sustained flight operation in the rain conditions is still a challenge to a pilot. This problem can be mainly attributed to the aerodynamic performance degradation of aircraft. In this article, in order to quickly understand the influence of rainfall
Externí odkaz:
https://doaj.org/article/295a2cdcb5f949a4b6444dc5e519ca0c
Publikováno v:
Applied Sciences, Vol 12, Iss 1, p 126 (2021)
The gas-solid two-phase flow model is constructed based on the Euler-Lagrangian framework. The SST k−ω two-equation turbulence model and the soft ball model are coupled by computational fluid dynamics (CFD) and a discrete element model (DEM). Brow
Externí odkaz:
https://doaj.org/article/fa20e05d36944fbaa8903f405265d517
Publikováno v:
International Journal of Aerospace Engineering, Vol 2020 (2020)
In this paper, the multibody parachute-payload system is simplified and analyzed. A six-degree-of-freedom rigid body flight dynamic model is established to calculate the flight trajectory, attitude, velocity, and drop point of the parachute-payload s
Externí odkaz:
https://doaj.org/article/51ecb16375de4edeb03295898af9694b
Publikováno v:
Applied Sciences, Vol 11, Iss 11, p 5109 (2021)
This article describes the results of modeling and analysis of a generic internal cargo system using a discretization method of the vector mechanics. The model can be easily incorporated into a tandem helicopter model and is intended for use of simul
Externí odkaz:
https://doaj.org/article/4ab08b2ffe6845aa8d6ee3f4da971a0a
Publikováno v:
Mathematics, Vol 8, Iss 7, p 1171 (2020)
To study the effects of ice accretion on the longitudinal aerodynamic characteristics of an aircraft, a two-part method for predicting longitudinal aerodynamic derivatives of iced aircraft is proposed. For the aircraft with a flight test, a parameter
Externí odkaz:
https://doaj.org/article/8f0c56156c9549ef9ba762a6f3a1a9e6
Autor:
Zhenlong Wu, Yihua Cao
Publikováno v:
PLoS ONE, Vol 12, Iss 5, p e0177390 (2017)
We simulate the onset and evolution of the earliest splashing of an infinite cylindrical liquid drop on a smooth dry solid surface. A tiny splash is observed to be emitted out of the rim of the lamella in the early stage of the impact. We find that t
Externí odkaz:
https://doaj.org/article/a21a6d8667ff40eebd094a88acd912fc
Autor:
Zhenlong Wu, Yihua Cao
Publikováno v:
Advances in Mechanical Engineering, Vol 8 (2016)
It has been widely investigated before that both heavy rain and icing conditions can cause severe aerodynamic performance penalties to aircraft in flight; however, aircraft aerodynamics in the presence of both heavy rain and ice accretion has been li
Externí odkaz:
https://doaj.org/article/4c25c0cfa7304a4f99a44b5e26e64ee4
Publikováno v:
Mathematics, Vol 7, Iss 2, p 116 (2019)
Tiltrotor aerodynamic interaction, especially in the transition mode, is a necessary consideration for tiltrotor aerodynamics, and structural design and optimization. Previous studies have paid much attention to the helicopter mode. However, due to t
Externí odkaz:
https://doaj.org/article/53fc66d7b92c4bc4ba61073e823f060c