螺旋桨

And then according to the chose engine checks screw propeller dimension and calculates the maximum speed of the ship.

进行匹配设计后螺旋桨空泡校核、船舶航行特性分析及主机性能分析。

The results obtained from the simulation testing by double digital signal processing system confirm that the DTC system fits for synchronous motor with screw propeller by three level inverter and the system operation performance is perfect.

采用双DSP系统对电动机带螺旋桨负载的推进系统进行了半实物仿真，结果表明文中提出的控制策略能对三电平逆变器供电的同步电动机实施高性能的调速控制。

The paper has a modularization analysis of ship electrical propulsion system. The paper develops the simulating mathematical model of every subsystem. It includes the thrust and torque of screw propeller, the resistance and re-torque in the movement of ship.

本文对船舶电力推进系统进行了模块化分析，建立了船舶运动中螺旋桨推力、扭矩，船舶运动的阻力，偏转的阻转矩等不同功能子模块的数学模型。

And at this basement, analyzes the matching design between screw propeller and diesel engine, according design theory of screw propeller chart.

目前常用的螺旋桨图谱匹配设计涉及大量图、表及繁多复杂的计算公式，并且各图表有特定的适用范围，不利于设计应用和推广；船舶冷却系统中冷却水流量、水泵排量等主要依据主机标定点设计，而船舶在实际航行过程中主机主要运行在部分负荷状态，这样就造成了冷却能力过剩，冷却水温度过低，影响主机性能的发挥。

With the fund item sponsored by the National Laboratory of Hydrodynamics, the study on measurement method of propeller-induced pressure with using self-propulsion model has been carried out in depressurized towing tank.

在脉动压力的模型测试研究方面，本文在水动力学国家重点实验室基金项目的资助下，对在减压拖曳水池中利用自航模进行空泡螺旋桨诱导的脉动压力的测试方法进行了研究。

Focusing on the interaction among the screws,the paper analyzed the current method of determining propulsive factor based on ship s self-propulsion test with three-screw and presented a new method to test and analyzed propulsive factor of ship with multi-screw.

针对多桨船螺旋桨间互相干扰的影响，通过对三桨船自航试验推进因子分析方法进行分析探讨，提出新的三桨及以上的多桨船船模自航试验方法和其推进因子分析方法。

It is a hard alloy,not easily corroded,and is used for making such things as ships' propellers and shafting.

它是一个难的合金，不容易地使腐蚀，和是二手的为制造如船的螺旋桨的事物和桥系。

A maneuvering mathematical model for controllable pitch propeller ships with three degrees of freedom was established according to separate modeling theory to simulate ships' maneuvering motion in ship-handling simulator.

0引言为获得良好的船舶操纵性能，大多数客船、拖网渔船、军舰等都采用可调螺距螺旋桨作为其推进方式。

The vessel to be propelled by a single-acting two stroke supercharged cross head Diesel engine, acting to a fixed pitch propeller.

该船的主机为单作用，二冲程，带涡轮增压器的十字头柴油发动机，并且螺旋桨为定距桨。

Obviously this is only possible if the engine is still running and the propeller slipstream blows over the horizontal tail.

显然，这是唯一可行的，如果发动机仍然在运行和螺旋桨汇集的冲击超过平尾。

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。