提出了一种全新的计算旋翼桨叶动力响应的方法。
A new way to solve dynamical response of rotor blade in helicopter.
提出了一种全新的计算旋翼桨叶动力响应的方法。
A design oriented method for the dynamic design optimization of composite rotor blades is presented.
旋翼的尾迹流强烈地影响旋翼桨叶的空气动力分布。
A rotor discrete free wake geometries and the blade airloads at each instant are presented.
提出一种面向设计的复合材料旋翼桨叶结构动力优化方法。
A design oriented method for the dynamic design optimization of composite rotor blades is presented.
提出一种面向设计的复合材料旋翼桨叶结构动力优化方法。
A new way to solve dynamical response of rotor blade in helicopter.
直升机旋翼桨叶除冰技术对保证直升机飞行安全是十分重要的。
The helicopter rotor blade deicing technique is greatly important to ensure the flight safe - ty.
要降低噪音，最简单的方法是增大旋翼桨叶的夹角，也叫“节距”，或是降低转速。
The simplest way to dampen a helicopter's noise is to increase the Angle of the rotor's blades, also called the pitch, and slow them down.
该装置的两个关键测量分系统是天平测量系统及旋翼桨叶应变测量系统。
Two of them are the balance measurement subsystem and the blade strain gauges measurement subsystem which are very important to the facility.
增加旋翼桨叶数量也是一种方法，这使得每片桨叶负载的直升机重量降低了，因此产生的噪音更小。
Then there's increasing the number of rotor blades. This helps because each additional blade carries less of the weight of the helicopter, and thus produces less noise.
而旋翼桨叶片数的选择，对轻型和中型直升机来讲，4片桨叶旋翼和5片桨叶旋翼具有典型意义。
As to the selection of rotor blade number for light and medium helicopter, 4 blade and 5 blade rotor are typical.
旋翼设计包括桨毂构型、旋翼桨叶片数、旋翼直径、旋翼实度、翼型剖面等一系列影响直升机性能的因素。
Rotor design is comprised of some factors such as hub configuration, blade number, rotor diameter, rotor solidity and airfoil which have effects on helicopter performances.
复合材料桨叶剖面特性是旋翼桨叶设计的最基本原始参数，也是桨叶结构设计、动力学设计和结构分析的基础。
The design of structure and dynamics of a rotor blade is based on its section characteristic of composite blade.
但是安装到旋翼驱动轴上的桨叶数量是有限制的，而且飞机的重量同样需要考虑。
But there are limits to how many blades can be tacked onto the rotor's drive shaft, and once again weight becomes a consideration.
提高高旁通飞机引擎的方法之一就是把风扇变成开放式旋翼，有点回归于螺旋桨的味道，但要使用两圈粗短的反旋桨叶。
One way to increase the efficiency of a high-bypass jet engine is to turn the fan into an open rotor, a bit like returning to propellers, but using two rings of stubby counter-rotating blades.
机翼承受垂向弯曲、弦向弯曲和扭转变形，螺旋桨旋翼的桨叶认为是刚性的并承受一阶挥舞和摆振。
The wing withstands vertical bending, chordwise bending and torsional deformations, and the rotor blade is considered to be capable of rigidly withstanding one order flap and lag motions.
试验证明该理论可行并能用于研究无铰旋翼结构参数对桨叶气弹稳定性的影响，也能用于直升机旋翼的型号设计。
The experimental results verify that the feasible theory can be used to investigate the effects of structural parameters of hingeless rotor on aeroelastic stability.
结合动量理论和涡流理论，推导了桨叶环量方程，用广义尾流模型计算了旋翼下洗流场。
Combining momentum theory and vortex theory, rotor circulation equation was deduced. The rotor down-wash flow field was calculated using generalized down-wash flow model.
旋翼阻抗由旋翼在固定坐标系中的运动方程得到，这个运动方程由旋翼旋转坐标系中的桨叶模态方程导出。
The rotor impedance is calculated from the rotor equations of motion in the fixed- coordinate system derived from the modal equations of blade in the rotating-coordinate system.
首先根据电控旋翼的刚体桨叶变距运动方程，推导了襟翼操纵量与桨叶桨距的显式关系式。
First, relationship between flap input and blade pitch was deduced based on the pitch kinetic equation of rigid blade.
桨叶变距拉杆操纵载荷是旋翼设计的重要参数之一。
The pitch link loads of blade is one of the most important parameters in rotor design.
在随桨叶旋转的坐标系中，建立了悬停旋翼自由尾迹计算的迭代方法和模型。
A computational method based on rotor free-wake is developed for predictig flow field between the twin rotors of coaxial helicopters.
虽然与直升机外观相似，但自转旋翼机必须依靠向上流过桨叶地气流维持旋翼地旋转，产生将飞行器维持在空中地升力以及向前飞行地推力。
While similar to a helicopter rotor in appearance, the autogyro's rotor must have air flowing up and through the rotor disk in order to generate rotation.
旋翼阻抗由旋翼在固定价值标系中的运动方程得到，这个运动方程由旋翼旋转坐标系中的桨叶模态方程导出。
The rotor impedance is calculated from the rotor equations of motion in the fixed-coordinate system derived from the modal equations of blade in the rotating-coordinate system.
悬停旋翼的流场由于具有对称性，只需要对一片桨叶进行计算。
Because of the symmetry of the flow field of hovering rotor, one blade is needed to be calculated.
悬停旋翼的流场由于具有对称性，只需要对一片桨叶进行计算。
Because of the symmetry of the flow field of hovering rotor, one blade is needed to be calculated.
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