第一部分，进行了减摇鳍设计工作。
探讨各个参数对水舱减摇效果的影响。
这是传统减摇鳍的主要缺陷。
This is the main disadvantage of traditional fin stabilizers.
故障诊断技术及其在减摇鳍系统中的应用。
The application of fault diagnosis in fin stabilizer control system.
并用实验结果验证了水舱模型的减摇效果。
The damping effect of the tank model is verified by the experiments.
船舶减摇是船舶与海洋工程的重要课题之一。
The ship stabilization is one of an important topic about ship and ocean structure .
分析减摇鳍的作用。
该算法应用于减摇鳍系统也获得了良好的控制性能。
This algorithm also gains favorable performance in control of ship anti-rolling fin.
同时，简化电路，提高减摇鳍的可靠性和抗干扰能力。
Besides, simplify the circuit, improve dependability of the stabilizer and interference-free ability.
槽型减摇水舱尺度的变化对船横摇运动有一定的影响。
The influence of flume tank parameters on ship rolling are discussed.
本文主要就船舶减摇技术的以下三个方面进行了研究。
The paper mainly studies following three problems of shipping anti-rolling technology.
最后依据试验数据分析了船舶在低航速下的减摇能力。
主要原因是减摇鳍，升力的产生源于水流流过鳍的速度。
The main reason is that the lift on the fins depends on the velocity of flow around them.
主动式减摇水舱是一个相当复杂的系统，控制器的设计是关键。
The initiative antirolling tank is a complex system in which the key design is the controller.
该装置的使用可有效提高船舶稳性、抗沉性、减摇性和防倾覆能力。
The use of this device can effectively improve the steadiness, sink-resistibility, roll-weakening and overturn-preventing.
本文结合具体船型介绍了这两种装置的选型依据及减摇效能估算方法。
The paper introduces the gist for choosing the two instruments and the means for estimating the efficiency of stabilizator.
结果表明，减摇鳍模糊控制器与传统PID控制器相比具有更好的控制效果。
Results show that compared with the conventional PID controller, the fuzzy controller has better effect.
船舶减摇鳍是船舶与海洋工程中的一种重要系统，目前已在多种船舶中广泛应用。
As an important system of Marine engineering, ship stabilizing fins have been widely used in many different kinds of ships.
目前使用的绝大多数减摇鳍都是角度反馈系统，它通过鳍的转角来计算控制力矩。
Most of the fin stabilizers we use now are angle-feedback system, whose control torque is gotten by the calculation of fin Angle.
目前使用的绝大多数减摇鳍都是鳍角控制系统，它通过鳍的转角来计算控制力矩。
Most of the fin stabilizers we use now are angle-control system, whose control torque is gotten by the calculation of fin Angle.
简单介绍了几种典型的减摇鳍装置转鳍油缸的组成和结构，分析了它们的优缺点。
The paper gives a simple introduction of the components and structure of several typical fin rotation cylinders for fin stabilizers and analyzes their advantages and disadvantages.
主要研究内容是探索一种能使减摇鳍在零航速或低航速条件下产生升力的解决方案。
The main content is to explore a scheme that makes fin stabilizers produce lift at zero speed.
减摇鳍是目前最常用且应用最成功的船舶主动式减摇装置，减摇效果可达90%以上。
Fin stabilizers are most frequently and successfully used active anti-roll equipments. The effectiveness of roll reduction can be more than 90 percent.
利用文中的方法和结果，可以计算船舶横向LQG控制在一定概率意义下的减摇效果。
Applying the given method in this study, LQG control effect of a ship lateral motion can be calculated in probabilistic meaning.
本文针对研究减摇水舱性能的船舶试验台位置系统，设计了基于DSP芯片的数字控制器。
A digital controller based on DSP is designed for position system of the test bed of ship, which is used for testing the anti-rolling tank.
减摇鳍是一种非常重要的船舶减摇装置，但传统的鳍角反馈减摇鳍在设计中存在着很多问题。
Fin stabilizer is one of the most important effective ship roll reducing equipments, which has many defects in the classical Angle feedback system.
在原来角度反馈减摇鳍系统的基础上，通过适当的改造建立升力反馈减摇鳍系统的实验台架。
Properly rebuild the experiment formwork of lift-feedback fin stabilizer system on the base of original angle-feedback fin stabilizer system.
分析了水舱阻尼产生的机理，研究计算水舱阻尼的算法；探讨各个参数对水舱减摇效果的影响。
The mechanism of tank damping and the calculation method of tank damping are analyzed. The effect of each parameter on anti-roll tank is studied.
根据上海交大船舶流体力学研究室槽型减摇水舱模型试验的结果，给出jd槽型水舱的阻尼系数值。
Based on the model experimental results from the Ship Hydrodynamics Laboratory of Shanghai Jiao Tong University, the damping coefficient of the JD flume tank are given.
根据上海交大船舶流体力学研究室槽型减摇水舱模型试验的结果，给出jd槽型水舱的阻尼系数值。
Based on the model experimental results from the Ship Hydrodynamics Laboratory of Shanghai Jiao Tong University, the damping coefficient of the JD flume tank are given.
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