ship motion

According to the short time ship motion modeling and prediction, the method of WNN is researched. The forward one step and the multi-step prediction algorithm are derived.

针对船舶运动极短期预报问题，研究了小波网模型的建模预报方法，推导出了向前一步和多步预报的递推算法。

Strongly non-linear hydrodynamics and ship motion performance under heavy sea has become a research hotspot in the world. Many countries pay special attention to the study of environmental adaptability of the ship in rough seas.

高海情下船舶强非线性水动力及运动性能研究已成为世界研究的热点，当今各国都特别注重舰船在复杂恶劣海洋环境中的环境适应性的研究。

This paper have built SWATH ship motion mathematical model.

而本文完成了这个任务的第一步，就是建立小水线面双体船的运动数学模型。

The second part describes simply research program on wave measurement system by ship motion in navigation.

第二部分简单介绍了船舶走航式波浪测量系统的研究方案。

This simulation environment provides manifold control algorithms to ship motion such as PID, intelligent PID, VAPID, neuron-PID, and fuzzy logic control and multi-mode controller with tuning parameters.

操作者可对PID、智能PID、变参数PID、变结构PID、神经PID、模糊控制和多模态控制算法的控制参数进行调整。

By using the approximate method, the solution to the nonlinear differential equation which governs the ship motion in regular beam sea is attained.

用近似方法求解描述船舶横摇运动的非线性微分方程，获得船舶运动的稳态解。

If people could predict the ship motion attitude or motive trend advancing several seconds, it was of great significance in the instruction and expiation of the taking off and landing of carrier plane, controlling of reduction swing and the launching of guided missile on a ship.

如果能提前几秒或十几秒预报出舰船或航母的运动趋势，将对舰载机起降作业指导和补偿、舰船减摇控制、舰载导弹发射等具有重大意义。

Research on ship motion attitude control based on slanting rudders

基于斜舵的船舶运动姿态控制研究

In order to reduce influence for carrier aircrafts landing to ship motion, people continually study and develop new methods.

为减小舰船运动对舰载机的影响，人们不断研究和发展新的方法。

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.

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DET NORSKE VERITAS航海模拟器标准对船舶运动数学模型的需要。

The prediction of ship motion is significant for ship navigation, but there is no effective solution to the ship pitching problem so far, and Time Series, Period Graph Method, Neural Networks and Grey System Theory were used to study the motion of a ship.

以往曾有人利用时间序列法、周期图法、神经网络法及灰色系统理论等方法来研究船的运动.目前还没有一种有效的方法解决船的纵摇。

Wavelet theory was exploringly used to investigate the nonlinear dynamic characteristics of ship roll motion in waves.

探索采用小波分析方法研究船舶在波浪中非线性摇摆运动的动力学特性。

A simulation system for ship motion control

船舶运动控制仿真平台

She could feel the rolling motion of the ship under her feet.

她能感觉到脚下船在晃动.

Then, rolling motion equation in long-crested wave, based on the linear rolling theory, is established. Secondly, the change of ship rolling motion in multiple conditions is analyzed.

然后，在此基础上，依据船舶线性横摇理论，建立船舶在长峰波海浪中的线性横摇运动方程。（二）分析多工况条件下船舶横摇运动的变化。

All of these both lay the foundation of further development of ship motion simulator also play a positive role for ship performance pre-study and evaluation.

为进一步开发舰船运动模拟器奠定了基础，同时对舰船性能的预研与评估也具有积极作用。

Ship motion control is very boring, especially for long distance shipping and the bad weather condition.

船舶操纵是一件枯燥乏味的事情，尤其在长距离航行和恶劣天气状况下。

The equation of ship motion with six freedoms is listed.

给出了船舶六个自由度的运动方程.

This formula provides valuable reference for studying the manoeuvring motions of a ship under varying accelerated motion.

该公式对研究在变加速情况下的船舶操纵运动有一定的参考价值。

Study on Guiding System of Carrier Aircrafts Landing Based on Ship Motion Prediction

基于舰船运动预报的舰载机着舰指导系统研究

In this paper, The stability of a ship with linear time variation and non-time variation motion system was discussed.

本文讨论了船舶线性非时变系统及线性时变系统运动的稳定。

The acquisition of ship motion and wave loading is based on the linear response of ship in harmonic wave and calculated by ship with no speed running beam sea, which is believed the most dangerous loading condition for SWATH ship according to the ship model testing results.

确定船体运动和波浪载荷的方法是以谐波中船舶的线性响应为基础，按零航速横浪来计算的。根据模型试验结果此种状态是SWATH最危险的载荷状态。

Using the concept of pseudo control variable, a simple state equation is constructed which describes the relative motion between an anti-ship missile and a target ship.

利用伪控制变量的概念，建立了简单的描述反舰导弹与目标舰艇相对运动的状态方程。

The swaying motion of the ship was making me feel seasick.

船身摇摆不定，让我觉得恶心。