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三维带操纵面机翼欧拉方程数值模拟
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作者 李伟 徐显 《气动研究与实验》 1996年第1期21-30,共10页
本文给出了用欧拉方程求解带操纵面机翼的数值结果,采用有限体积法,四步Ronge-Kutta时间推进,结合不连续面通量守恒传递技术,对有操纵面偏转的三维机翼流场进行求解,计算结果与实验符合较好。
关键词 飞机 欧拉方程 有限体积法 操纵面 机翼气体力学
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MULTI-BODY AEROELASTIC STABILITY ANALYSIS OF TILTROTOR AIRCRAFT IN HELICOPTER MODE 被引量:4
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作者 董凌华 杨卫东 夏品奇 《Transactions of Nanjing University of Aeronautics and Astronautics》 EI 2006年第3期161-167,共7页
The muhi-body analysis of the aeroelastic stability of the tiltrotor aircraft is presented. Muhi-body dynamic differential equations are combined with the equations of the unsteady dynamic inflow model to establish th... The muhi-body analysis of the aeroelastic stability of the tiltrotor aircraft is presented. Muhi-body dynamic differential equations are combined with the equations of the unsteady dynamic inflow model to establish the complete unsteadily aeroelastic coupling analytical model of the tiltrotor. The stability of the tiltrotor in the helicopter mode is analyzed aiming at a semi span soft-inplane tihrotor model with an elastic wing. Parametric effects of the lag stiffness of blades and the flight speed are analyzed. Numerical simulations demonstrate that the multibody analytical model can analyze the aeroelastic stability of the tiltrotor aircraft in the helicopter mode. 展开更多
关键词 TILTROTOR HELICOPTER aeroelastic stability multi body dynamics dynamic inflow
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