直升机

An experiment system is setup for the blade flapping motion measurement, a model of micro helicopter rotor manipulation mechanism is designed and completed, in order to obtain continuously changing angular velocity, a angular velocity control unit is also designed which consists of a power supplier and a voltage distributing circuit.

建立了微型直升机旋翼桨叶挥舞振动实验系统，研制了微型直升机旋翼操纵机构实验台和旋翼转速控制单元，提出了微型直升机旋翼桨叶挥舞振动的非接触式测量方法。

K-32A in accordance with the views of the captain, the water point at the fire scene about 8km from the Department of the Yalong, M-26TC helicopter flew Mianning come on the scene of the fire after the fire bucket implementation, a total of 7 barrels of sprinkler. M-26TC helicopter back to the market after the 9289 and 9475 No. K-32A helicopter sorties second take-off on the implementation of the fire bucket fire, the fire sprinkler total of 10 barrels, from the ground commander of the first-line feedback, the effect of a good fire-fighting bucket.

根据K-32A机长的意见，将取水点定在离火场约8KM处的雅砻江，M-26TC直升机加油后飞赴冕宁火场实施吊桶灭火，共洒水7桶。M-26TC直升机返场后，9289号和9475号K-32A直升机第二架次起飞对火场实施吊桶灭火，共对火场洒水10桶，从地面一线指挥员反馈情况，吊桶灭火效果很好。

The nonuniform induced velocity distribution on the rotor disk is derived from the fixed vortex theory.A sample calculation of a typical...

本文以其典型直升机为算例，计算了直升机对大气紊流的响应，并分析各紊流分量对直升机响应值的影响。

According to the characteristics presented by armed helicopters during cruising or searching for ground targets, this paper has established the mean-square deviation stationary random model of helicopter tracks. It is an important method to decorrelate the measure noise by estimating the parameters of the color noise online. Kalman filtering and forecasting have been made with helicopter tracks. The simulated study has been carried out on helicopter tracks under the condition of color noise. It is very difficult to get an accurate and reliable prediction when the data is very limited. The paper make use of the theory of grey system to resolve the problem of prediction of helicopter tracks, establishing the GM model of grey systems and the cumulative residual error model of n degree, then correcting the GM forecast model. In the period of sampling, GM model and residual error model have been established on line to improve prediction precision.

结合武装直升机在巡航或搜索地面目标的特点，给出直升机航迹模型为协方差平稳随机模型，在线估计有色噪声参数，对测量噪声去相关，对直升机航迹进行卡尔曼滤波与预估，最后对有色噪声条件下的航迹进行了仿真研究；在数据非常有限的情况下，准确地预测又很困难，本文提出了用灰色系统理论解决直升机航迹预测问题，建立了灰色系统GM预测模型和n次累加残差模型并对GM预测模型进行修正，在每个采样期间内，实时在线建立GM预测模型和残差模型以提高预测精度。

Aviation products: for domestic Yun-7 turboprop airliner matching 5 A -Ⅰ-type engine, turboprop engines 5E and direct 9 helicopter transmission system, Direct 8 helicopter reducer, direct transmission of 11 helicopters, as well as m 8 helicopter engine repair, as well as domestic and international aero-engine crankshaft, connecting rod, casing, such as subcontracting production projects, as well as aircraft landing with 3000kw gas turbine generator sets and so on the ground.

航空产品：为国产运7客机配套的涡桨5甲－Ⅰ型发动机、涡桨5E型发动机和直9直升机传动系统、直8直升机减速器、直11直升机传动系统等，还有米8直升机发动机修理以及国内外航空发动机曲轴、连杆、机匣等转包生产项目，以及航机陆用3000kw地面燃气轮机发电机组等。

Which the helicopter is a Eurocopter EC-135 produced by the latest series is a high performance light twin-engined multi-purpose helicopters, widely used around the world. In 1996 produced the first aircraft to enter the German air rescue helicopter companies use has more than 300 EC135 in 27 countries, more than 100 units of the flight.

该款直升机是欧洲直升机公司生产的EC-135系列中的最新型，是一种性能优异的轻型双发动机多用途直升机，在全世界广泛使用。1996年首架生产型直升机进入德国空中援救公司使用，至今超过300架EC135在27个国家的一百多个单位飞行。

CASTING A SHADOW \ 直升机的影子 A Brazilian Air Force helicopter cast a shadow in Maranhao, Brazil, Wednesday.

周三在巴西的马拉尼昂，巴西空军的直升机在空中飞行，飞机的影子投影在地面。

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China's AVIC Helicopter Co is breaking away from Eurocopter, its partner in the joint EC 175/Z-15 medium helicopter programme, following a decision to re-engine the Chinese Z-15 variant with an indigenous powerplant.

中国中航直升机有限责任公司（AVIC Helicopter Co。，又称中航工业直升机公司，英文为Avicopter）摆脱EC-175/Z-15中型直升机项目的联合研发方——欧洲直升机公司，做出决定：为中国方面的直-15系列直升机（即Z-15）配备国产动力装置。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。