| 1. | Both the sideslip angl e and the rudder angle are seen to be very much dependent on the angle of climb . 人们可以看到,侧滑角和方向舵偏角都在很大程度上依赖于爬升角。 |
| 2. | Shipbuilding - electric rudder angle indicators 造船.电气舵角指示器 |
| 3. | A design of four - channel signal generator for rudder angle adjustment 四通道舵偏信号发生器设计 |
| 4. | Turning ability with large rudder angle 大舵角回转性能 |
| 5. | Test should be proceed under good meteorologic conditions and sea condition , keep the cruise 、 ship speed and main engine revolution of the vessel stable before trial , rudder angle should keep at center position 试验应在良好的气象条件和海况下进行,试验前,应保持航行、航速以及主机转速的稳定,试验期间,舵角应保持在正中位置。 |
| 6. | With the help of simulink , fuzzy logic box provided by matlab , s - functions are written in c and m files . the output plots of heading and rudder angle can be obtained . the experiments are performed to test the disturbance rejection properties of the fuzzy model reference adaptive control compared with fuzzy control 利用matlab提供的simulink动态仿真环境,模糊逻辑工具箱及s -函数,将模型参考模糊自适应控制运用于船舶操舵系统,观察航向及舵角输出曲线,然后考虑风、浪及其它随机干扰,分析系统的抗干扰性。 |
| 7. | In the aspect of ship maneuvering hydrodynamics , taking bulk carriers and oil tankers for an example , the prediction was done ; in the turning circle , different ships under different rudder angles were studied and predicted ; in the zigzag curve , different ships under constant rudder angle were studied to predict another two ships 在操纵运动水动力方面,以散货船和油船为例探讨应用bp网络完成水动力的学习和预报;在回转圈方面,完成了不同船舶在不同舵角下的学习和预报;在z形曲线方面,对不同的船舶在同一舵角下进行学习,预报了另外两艘船舶的z形曲线。 |
| 8. | Firstly , while the nominal model is used , the filtering effect is very good . secondly , when the system model is n ' t definite , the filtered heading angle and rudder angle are steady in the error range . finally , when the complicated nonlinear wave model replaces the linear wave model , the filtering effect is also steady , and the estimate precision is high 首先,仿真是在名义模型的情况下进行的,此时h _滤波器的滤波效果很好;其次,我们在系统模型具有摄动的情况下进行仿真,此时经h _滤波器滤波后的航向输出和舵令输出基本能够达到稳定;最后,我们采用较复杂的非线性海浪模型代替线性海浪模型进行仿真, h _滤波器的滤波效果也是比较稳定的,并且估计精度较高。 |
| 9. | Compared to an ordinary rudder , the value of lift coefficient of ichthyoid rudder is about 30 % higher and the maximum rudder angle of it nearly reaches 45 degrees . ichthyoid rudder is a design under such a conception as to effectively utilize the propellers slipstream for rudder action , and featured by having a fish - shaped one - piece construction that is to say - no part of ichthyoid rudder can move in the water 其研究的鱼形舵是一个没有在水下移动的鱼尾形剖面单片结构,增加了全舵的剖面拱度,使螺旋桨尾流的折射水量增强,进而增大了水动力的作用,使之比普通流线形舵的升力提高30左右。 |