查询词典 propeller

The powerplant of propeller aircraft is composed of two main parts, piston engine and propeller.

小型螺旋桨飞机的动力装置一般由活塞式发动机和螺旋桨两个主要部分组成。

The real propeller geometry is considered in the computation. The calculated K〓 and K〓 are in good agreement with test results. The simulated velocity field near propeller plane and pressure distribution on hull also shows similar tendencies as the measured data.

本文对螺旋桨/船体的整体流场进行了计算，将螺旋桨和船体作为一个整体来进行流场分析研究，以揭示真实螺旋桨与船体之间相互影响的内在规律。

In response to the relationship between cavitations and wake gradient, this paper puts forward 3 kinds of calculating model of propeller exciting force , then puts the actual exciting force into pattern formula, and then obtains a new formula to predict propeller-induced hull surface pressure fluctuations by analyzing and calculating some actual ships.

在深入研究国内外螺旋桨激振力计算方法以及综合分析影响螺旋桨激振力的各种要素的基础上，根据空泡数和伴流梯度的关系，本文提出三种螺旋桨脉动压力的计算模型，将反推得到的实际激振力分别代入模型公式，应用数学统计方法对几条实船进行计算分析，得到用于预报螺旋桨表面力的新公式。

Hurricane propeller company was established in 2000, is committed to general aviation propeller research.

飓风螺旋桨公司成立于2000年，致力于通用航空螺旋桨的研究。

In this paper we use the method of the neural network to build the hydrodynamic model of the rotatable propeller according to experimental data. On the basis of it, the maneuverability of the rotatable propeller is studied.

本文根据实验数据，用神经网络辨识方法建立了船后可回转桨的水动力模型，并在此基础上研究了可回转桨的操纵性能。

In the past, cycloidal propellers have not been well applied because their construction costs were higher than that of screw propeller, and the progress of investigation on the hydrodynamic characteristics about cycloidal propeller was slow.

在过去的年代里，由于摆线推进器的造价要比一般螺旋桨高得多，一直没能得到很好的应用，有关摆线推进器水动力性能的研究也一直进展缓慢。

We have established following unique intellectual property positions :"contra-rotating propeller in nozzle"、"shafting anti-twist labyrinth contra-rotating propeller"、"hydrofoil podded propulsion with contra-rotating propeller"and so on.

公司拥有多项自主知识产权，&全回转对转桨前后置导管推进装置&；&迷宫切割式轴系防缠绕推进装置&；&吊舱型对转桨牵引式水翼组合推进装置&等专利技术。

Aiming at the disadvantages of the present machining method of the propeller, such as lower machining precision and efficiency, needing more time of clamping and limited machining scope, a new machining method the second-order osculating machining method has been presented and used in the manufacture of the propeller by analyzing the curve surface characteristics of the marine propeller blade.

针对目前螺旋桨加工中存在的加工精度和效率较低、需多次装夹、适用范围有限等缺点，在分析螺旋桨桨叶曲面特征的基础上，提出了基于圆柱形刀具二阶密切加工螺旋桨的方法。

The usage technique of radar for high-speed ship s to prevent collision in Three Gorges reservoir;2. Research on Modeling and Simulation of High-speed Ship CPP Propulsion System;3. Based on three typical high-speed ship (high-speed monohull ship,planning hydrofoil craft,wave-piercing Catamaran),a mathematic models of high-speed ship ′s propulsion system(common screw propeller,adjustable-pitch propeller, water-jet propeller) and intelligent control system are established the simulation with the help of Matlab/Simulink is realized.

以三种典型的高速船(高速单体船、翼滑艇和穿浪艇)为例，建立了其推进(普通螺旋桨、可调螺距螺旋桨及喷水推进)系统及智能控制的数学模型，并在Matlab/Simulink上实现仿真；建立了推进系统的优化数学模型，编制了优化算法(混沌算法、遗传算法和粒子群算法)程序，实现了智能推进系统的优化设计；最后，运用Matlab/GUIDE进行界面设计，编制了高速船智能推进系统仿真与优化软件，实现了良好的人机互动。

History propeller aircraft, including piston propeller aircraft and turboprop aircraft, piston aircraft engines for propeller-type, which is the most primitive form of power.

螺旋桨史飞机，包括活塞螺旋桨式飞机和涡轮螺旋桨式飞机，飞机引擎为活塞螺旋桨式，这是最原始的动力形式。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了