An experimental technique and method for flutter research of helicopter blade model are proposed.
提出了直升机模型桨叶颤振试验技术及试验方法。
An iterative computation method for nonlinear forced vibration equation on helicopter blade aerodynamic load is given.
介绍用迭代方法求解直升机桨叶气动载荷中的非线性强迫振动方程。
In the static strength analysis of helicopter blade, the traditional analysis method may lead to the uncertainty of the strength conclusion due to the inaccuracy of load calculation.
在直升机桨叶的静强度分析中，传统的分析方法可能会由于载荷计算的不准确，给强度结论带来不确定性。
But when flying forward the air passing over the blade that is advancing to the front of the helicopter (and so into oncoming air) provides more lift than the one that is retreating to the back.
但是当向前飞行时，它的旋翼将转向直升飞机的前方(如此一来，就变成朝向迎面而来的空气)，经过叶片上方的气流将比经过叶片背面的气流产生更大的升力。
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.
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。
Moshier, a former Navy-pilot-turned-entrepreneur, has spent the last five years of his life working secretly on a tiny twin blade strap helicopter called The Solotrek.
莫舍以前是一名海军的飞行员，如今他成了一名企业家。他用了5年时间，一直在秘密研究一种小型的双叶直升机。
Connection apparatus for a helicopter rotor blade, comprising.
连接装置的直升机转子叶片，其中包括。
The strange craft appears to have legs or blade-like parts similar to that of a helicopter.
这个神奇的飞行物看上去似乎是有腿的，或者是类似于直升机的桨叶。
The airfoil member according to claim 1, configured as a rotor blade for a helicopter.
翼型会员根据权利要求1 ，配置为转子叶片为直升机。
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.
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。
The helicopter rotor blade deicing technique is greatly important to ensure the flight safe - ty.
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。
As to the selection of rotor blade number for light and medium helicopter, 4 blade and 5 blade rotor are typical.
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。
The aeroelastic analysis of a helicopter rotor blade with the controlled oscillating trailing edge flap is presented by building an aeroelastic model of the new concept rotor blade.
通过建立带受控振荡附翼的新概念旋翼气动弹性分析模型，研究了采用受控振荡附翼的直升机旋翼气动弹性特性及其在降低旋翼振动载荷方面的有效性。
As a critical part of helicopter, rotor blade anti-fatigue design technique is one of the key to improving safety life and decreasing cost.
作为直升机的关键动部件，桨叶的抗疲劳设计技术是提高桨叶安全寿命，降低桨叶使用成本的关键。
The result shows that the model of neural network can predict the effect of blade negative-twist on helicopter vortex-ring state.
计算结果表明，神经网络模型能够准确预测桨叶负扭度对直升机涡环状态的影响。
Main rotor is the key part of helicopter modeling, the associated modeling methods of aerofoil aerodynamic loads, rotor inflow dynamics and blade flap motion are discussed in detail.
主旋翼是直升机建模的关键，详细讨论了与其相关的翼型气动力模型、 诱导速度模型和挥舞运动模型的建模方法。
The helicopter has a five-blade main rotor and a four-blade tail rotor.
直升飞机有一个五浆叶主旋翼和一个四浆叶尾旋翼。
A refined aeroelastic model of a helicopter rotor blade with swept tips is established based on model matching.
以动力学模型和气动模型相匹配为原则，建立了后掠桨尖旋翼的细致气弹模型。
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 rotor blade, specially for a helicopter rotor, which blade is made of reinforced plastics and a process for making this blade in a single molding operation.
一转子叶片，特别是为直升机旋翼，叶片制成的增强塑料和一个过程，使这种刀片在一个单一成型的运作。
Number 7. BELL AH-1 COBRA is a two-blade, single engine attack helicopter manufactured by Bell Helicopter.
第七名：贝尔的AH-1眼镜蛇是由贝尔直升机公司制造的双叶片，单发动机攻击直升机。
A new way to solve dynamical response of rotor blade in helicopter.
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。
The "Sepcial for Fix Pitch(FP) R/C Helicopter Wood Blade" developed by our company improve the performance of 4channel heli a lot, which fit the need of international customers.
公司自主研发的“固定桨距直升机专用木桨”极大提高了4通道小电直的稳定性和操控性，填补了这类产品的国际空白。
The "Sepcial for Fix Pitch(FP) R/C Helicopter Wood Blade" developed by our company improve the performance of 4channel heli a lot, which fit the need of international customers.
公司自主研发的“固定桨距直升机专用木桨”极大提高了4通道小电直的稳定性和操控性，填补了这类产品的国际空白。
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