横摇

该公式可用于设计阶段渔船横摇周期的估算，亦可在渔船营运中用作检验GM值之用。

This formula can be used to calculate rolling period of fishing vessels and check GM of fishing vessels in operation .

本文根据DeltaLinda拖轮自由横摇衰减曲线，利用能量法确定了阻尼力矩系数。

According to the free rolling decay curve of Delta Linda tug , the damping moment is determined by energy method .

深V型滑行艇横摇阻尼的实验确定

Experimental determination of roll damping of deep-Vee planing craft

基于ANFIS的船舶横摇运动预报及智能控制研究

Research on Prediction and Intelligent Control for Ship Roll Motion Based on ANFIS

基于斜舵船舶减横摇LQG控制研究

Study on Slanting Rudder Of Ship Rolling Stabilization Based on LQG Control Method

在研究大量参考文献的基础上，本文提出了船舶横摇运动基于二进小波神经网络整定的智能PID控制算法。

On the base of a great deal of reference literatures , intelligent PID control algorithm of ship roll motion based on dyadic wavelet neural network has been proposed .

本文以Taylor级数展开法表示非线性横摇阻尼模型的一般表达式，依据船模强制横摇的实验结果，提出了一套较完整的非线性阻尼模型辨识技术。

In this paper , the general expression of nonlinear damping model cansed by roll motion is described by taylor series expension method .

本文针对船舶横摇运动的非线性模型，基于BP神经网络设计了一种船舶横摇减摇自适应PID控制器。

In this paper , the author has designed the adaptive control system for fin stabilizer based on the BP neural network , according to nonlinear rolling model of ship .

针对不同的海情进行了仿真，得到未减摇、用传统PID和模糊自适应PID的横摇角。

Then , it carries out simulations for different conditions on the sea , and gets the rolling angles at rolling , using the traditional PID and fuzzy self-adaptive PID .

由于船舶横摇运动的复杂性、非线性、时变性和海况的不确定性，经典PID控制难以获得满意的控制效果。

Because of complexity , non-linearity , time-varying of ship roll motion and uncertainty of sea condition , satisfied control effect is very difficult to be obtained with conventional PID controller .

测试分为两个方面：第一方面是DeltaLinda拖轮在不同海况及航向、航速下的横摇运动仿真。

Simulation test is classified into two categories . One is to analyze the rolling motion of Delta Linda tug in different sea states , course and speed .

通过详细分析了水下基准安装柱扰曲形变、GPS定位误差、罗经测向误差、纵倾横摇角测量误差对高精度定位标定系统水下基准位置的影响。

We make in-depth analysis of the positioning errors of the underwater benchmark due to cylinder deformation , positioning error of GPS , angular error of compass , and measurement error of the dynamic motion sensor .

DRNN神经网络用于船舶横摇运动的时间序列预报

Time Series Prediction of Ship Roll Using Diagonal Recurrent Neural Networks

在船舶作大幅横摇运动假定下，采用压力积分方法，利用Taylor展开，导出其他自由度运动对横摇的非线性耦合运动方程。

The nonlinear rolling equation coupled with other motions is derived on the basis of large amplitude rolling motion , and using an integrated pressure and Taylor expansion method .

本文对自适应神经模糊推理系统（ANFIS）在非线性船舶舵阻横摇中的应用进行了仿真研究。

Adaptive neural-fuzzy inference ( ANFIS ) and its application on the nonlinear ship rudder damping system are studied in this thesis .

通过船舶横摇运动数学模型获取船舶横摇运动时间序列，利用所得时间序列建立船舶横摇运动RBF神经网络预报模型，并对船舶横摇运动进行预报。

The time series of ship rolling obtained from the mathematical model are used to establish the forecast model of RBF neural network , and the ship rolling can be forecasted .

本文介绍了解决浅水波非线性系统的近似计算方法&Randomchoice方法，并应用这一方法计算了强迫横摇水槽内水的流动状态，又将一部分结果与文献[4]提供的试验数据相比较。

This paper explains the random-choice method , an approximate calculation method to solve the nonlinear system of long wave in shallow water . By using the random-choice method , this paper calculates the flowing state of water in a forced-rolling tank .

对深V型滑行艇模型进行了静水横摇衰减实验和零速正横浪规则波中横摇运动实验，讨论了在处理试验数据时所面临的一些问题；

The roll decay test in still water and roll tests in regular waves at zero speed on model of a deep-Vee planing craft are conducted , and problems arising from the data processing are discussed .

本文还采用了参数自整定模糊PID控制策略来实现船舶的航向舵减横摇控制，也得到了比较好的控制效果。

This method is called optimum stochastic control . In this text fuzzy PID controller which parameters are self-adapting is adopted to realize the purpose of reducing the roll of shipping by rudders and the control results are relative good .

对装备减摇鳍系统的舰船横摇运动的准最小方差控制、加权准最小方差控制进行了研究，在计算机上进行了数字仿真，并与目前工程上使用的PID控制进行了比较。

Quasi-minimal variance control and weighted-quasi-minimal variance control for roll attitude of ship with stabiliser fin are studied in this paper . Digital simulation is carried out with computer , and it is compared with PID control used now in engineering .

横摇运动振幅渐近分布属于指数型分布，根据应用Markov过程理论得到的极值分布推导了最大值分布公式，同时提出了最大值预报方法。

This paper discusses the prediction method for the extreme values of nonlinear ship rolling motion . According to the probability distribution function on the theory of Markov processes , the formula of predicting extreme values is obtained .

Spar的纵摇和横摇运动响应与低频随机波浪的峰值周期下的张力腿平台相比更加完美。

However , the roll and pitch response of Spar is perfect and comparable with that of the TLP when the peak period of random waves is low .

利用H∞控制理论对船舶减摇鳍横摇姿态控制系统进行了混合灵敏度设计，并针对船舶减摇鳍系统的特殊性，解决了H∞控制器设计中与该系统不匹配的有关问题。

By using the H ∞ control theory , a mixture sensibility design was made for a fin stabilizer system . The mismatch problem in the design of H ∞ controller associated with the system was solved in accordance with the features of the ship roll damping .

最后，将处理算法从MATLAB平台移植到VisioBasic平台，进行了实时的船舶模拟升沉运动和横摇运动及相应的补偿试验，获得实时补偿的运动数据并进行了相关的分析研究。

Finally , the algorithm is transplanted from MATLAB platform to Visio Basic platform since the former system was built on VB platform . And the tests are carried out to compensate the displacement of the heave and roll motions in real time .

采用坐标变换技术在雷达天线的方位和俯仰轴上对船摇姿态角（横摇角R、纵摇角P和航向角H）进行角度实时补偿以达到稳定雷达天线的作用。

The coordinate transformation technology is adopted to compensate with real time the attitude angles ( rolling angle R , pitch angle P and course angle H ) of the swinging ship on the azimuth and elevating axis of the radar antenna in order to stabilize the radar antenna .

应用随机平均法和FPK方程，求出了随机纵浪中船舶的随机横摇幅值的概率密度函数。

Probability density function of random roll amplitudes is derived in random longitudinal sea state , by using stochastic averaging method and FPK equation .

本文应用矩函数法分析船舶在随机横浪中的非线性横摇运动，以及用Hermite矩闭合法来闭合矩微分方程组，求得随机横摇运动获得平稳时的响应统计矩与外扰力的关系。

Presents the method to analysis the nonlinear ship roll motion in random transverse waves by using the moment function . The results of stochastic roll response statistics are obtained from the moment differential equations enveloped by the Hermite Moments .

由于船舶航行的实际海洋环境是不规则波，所以对不规则波中船舶横摇运动模型进行研究是满足DETNORSKEVERITAS航海模拟器标准对船舶运动数学模型的需要。

Essentially , ship sails in irregular waves . Studying the mathematical of ship rolling motion in irregular waves satisfies the DET NORSKE VERITAS standard about shiphandling simulator .

采用摄动法和Floquet理论，求出了不同参数激励幅值和强迫激励幅值下的分岔曲面，确定了发生参数激励大幅横摇和船舶倾覆的航行参数。

The bifurcation surface is obtained by using perturbation method and Floquet theory , in different parametric excitation amplitudes and forcedly excitation amplitudes . The real navigation condition for primary parametric rolling and capsizing is found .

研究一个具有拟周期参数激励的船舶横摇模型的混沌解.应用一种改进的Melnikov方法，我们获得了该模型存在混沌解的参数条件。

In this paper , a ship-rolling model with quasi-periodic parametric exciting force is studied . By using a modified Melnikov method , we obtain parametric conditions under which rolling motion of the ship is chaotic .