查询词典 empennage

Two methods are used in this paper to analysis the flight dynamic performance for UAV without empennage by qualitative and quantitative analysis. One is calculating two longitudinal modes by linearizing the basic motion equations. The other is three-dimensional flight simulation research with complete motion equations.

文章主要运用了基本运动方程线化进行基本模态计算分析和建立全量方程进行三维虚拟飞行仿真研究两种方法来定量与定性的分析与评估无尾式无人机的飞行动力学特性。

Keyword: coaxial parameters,empennage angle,Testing system

关 键词：同轴度；尾翼角；检测系统

The empennage of FMAV mimics birds. The pose control mode is research deeply with MATLAB. Results indicate that this pose control system is useful and efficient.

设计了仿鸟微扑翼飞行器气动布局结构来实现尾翼姿态控制，对姿态控制模型进行了研究，并用MATLAB进行仿真，结果显示仿鸟尾翼在理论上和实际应用中都有很大价值。

The paper concludes with a brief discussion of a case study through applying Design/PA into the product development process of aerofoil rib, an important product of airplane vertical empennage.

最后，采用Visual C〓6.0和Access97完成了系统的程序设计，开发了基于DMP/A的过程建模系统Design/PA，并结合航空工业中的重要产品-飞机垂尾翼肋，对所开发的建模方法和原型系统进行了应用研究。

Technologies such as DirectX, object oriented programming and database are used to realize visual three-dimensional flight simulation system. In the simulation system, operator controls UAV with flight rod. The system can display the change of position and track for UAV with the change of operational input. Flight simulation data can be also recorded. Then we can analysis the operation and stable performance of UAV without empennage with qualitative and quantitative methods.

运用 DirectX、面向对象编程与数据库等技术，实现了基于 PC 机的三维虚拟飞行仿真系统，通过人机交互飞行，可以比较直观地显示无人机的姿态与轨迹随操纵输入变化而变化，同时也可记录分析仿真飞行数据，从而对无尾式无人机的稳定性与操纵性能进行定性与定量的分析评估。

When the empennage of shield leaves the testing section, the values of surface uplift and sub-surface movement go up to the peak first and then descended.

地面隆起及深层土体移动则是在掘进机尾部离开测点时达到最大，随后总体上呈下降趋势。

The transonic flutter characteristics are investigated for several wings, empennage and wing-body configuration, flutter critical speeds are numerically simulated.

以ONERA M6机翼和无后掠矩形机翼为算例，分别对它们的跨音速定常和非定常粘性绕流进行了数值模拟，计算结果和有关文献的结果进行了比较，吻合较好。

Its figure exquisite is cabinet, elegance is handsome, empennage is longer than the body 2, 3 times, call long end heaven the bird again.

它身材玲珑小巧，典雅俏丽，尾翼比身体长二。三倍，又称长尾天堂鸟。

On the basis of simulating unsteady viscous flows, coupling the structure dynamics equations, the problem of flutter is investigated for wings, empennage and wing-body configuration.On the basis, many examples, simulating the steady and unsteady viscous flows around wings, are given in this paper.

在模拟非定常粘性绕流的基础上，与颤振运动方程相耦合，分别对机翼、尾翼和组合体流固耦合现象中颤振问题进行了研究，准确求解跨音速颤振临界速度，分析它们在跨音速范围的颤振规律，并研究分析了机翼剖面形状变化对颤振速度的影响。

The airship, which has push equipment, is made up of hull, empennage, pendant cabin, push equipment etc.

飞艇是具有推进装置的浮空器，由艇体、尾翼、吊舱和推进装置等部分组成。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。