6) (mean )camber of a wing section 翼切面中弧曲度补充资料:气动力中心 机翼剖面上的一个点,绕该点俯仰气动力矩不随攻角α改变;又称焦点。 理论证明,作亚声速运动的翼型,其气动力中心位于离翼型前缘四分之一弦长处,作超声速运动则位于弦线的中点。实测所得的气动力中心位置与此稍有出入。机翼的气动力...
4) moment with respeet to aerodynamic center 气动中心力矩 5) AC Aerodynamic Center 空气动力中心 6) aerodynamic center of a wing section 翼切面气动力中心补充资料:QF-60型准轨气动自翻车 QF-60型准轨气动自翻车 QF一60型准轨气动自翻车 说明:补充资料仅用于学习参考,请勿用于其它任何用途。参考...
The data at the wing root is correlated and fit to an equation that can be used to predict the location of the section aerodynamic center at the root of a swept, elliptic wing as a function of aspect ratio and sweep. The results can be used in low-order modeling methods which rely ...
The aerodynamic center is a point on the wing chord that results in a constant moment when the wing angle of attack is changed. An AC lies approximately at the quarter-chord position at subsonic speeds and at approximately the half-chord position at supersonic speeds. ...
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1) wing aerodynamic center 机翼焦点2) aerodynamic centre 翼型焦点3) Focus message distribution mechanism 焦点机制4) neutral point of airplane; aerodynamic center of airplane 飞机焦点5) Wing jack points 机翼千斤顶点6) Pterion 翼点 1. Anatomy and Clinical Application of the Improved Pterional ...
In order to research the change regulation of aerodynamic center based on a variable forwardswept wing(VFSW)configuration with a slide way sweeping,by adopting a format of N-S control equations with the method of finite volume method,the aerodynamic center on the VFSW configuration under different...
The results showed that the wing corrugations of hovering insects at typical travel amplitudes and angles of attack reduce the average lift by approximately 5%, increase the average drag by approximately 3% and barely change the location of the center of pressure. Experiments and calculations [ 13,...
The center of pressure of a projectile is caused to move upon the occurrence of an event that changes the static margin, such as the jettisoning of a body previously attached to the projectile, as noted above. In particular embodiments, this is achieved by a flare disposed toward the rear ...
A tilt-rotor aircraft () comprising a pair of contra-rotating co-axial tiltable rotors () on the longitudinal center line of the aircraft. The rotors () may be tiltable sequentially and independently. They may be moveable between a lift ... RG Burrage - US 被引量: 55发表: 2005年 Pro...