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.
而船舶的各种摇荡运动中,横摇运动对船舶的危害最大。
In various ship swing motion, roll motion is the most serious and destructive.
应用安全池思想研究随机海浪中倾斜船舶大幅横摇运动及倾覆概率问题。
Large amplitude rolling motion and survival probability of biased ships are investigated using safe basin theory.
本文给出了参激横摇运动非线性方程的频域解析解,分析了解的若干特性。
In this paper, analytical solutions of a nonlinear equation of parametric excited roll motion are given, and some features of the solutions are analysed.
建立了大型浮体结构考虑风浪和爆炸载荷作用的大幅横摇运动随机微分方程;
The large-amplitude rolling random differential equation has been founded of floating structure subjected to wind-wave and explosive loading.
具有一定精度的近似解析解有助于方便分析船舶非线性横摇运动及其稳定性。
An approximate analytical solution with comparative accuracy is helpful in investigating nonlinear rolling of ships and its stability.
两个谐波响应的迭加,使横摇和纵摇运动响应显著增加,并且横摇运动不再左右对称。
Due to the superposition of two responses with different frequencies, the ship motion is increased and the rolling motion is not symmetrical.
本文应用随机平均法,提出了用5阶多项式表示稳性曲线的非线性横摇运动的统计分布。
By using stochastic average method, the probability distribution function of the rolling amplitude of a ship with S-type static curves in random waves was put fowavd.
数值模拟的结果表明新的路径积分法对研究船舶非线性横摇运动概率密度分布是十分有效的。
The results indicate that the new path integration method is efficient in the studying the probability distribution of ship nonlinear roll motion from the numerical simulation results.
船舶横摇运动是构成对船舶安全威胁最为危险的摇荡运动,它是导致船舶倾覆的最主要原因。
It is well known that, as ship roll motion is the most important reason which leads to ship capsizes, it is the most dangerous threat to the safety of ship.
本文考虑随机波浪及船舶的非线性阻尼、非线性恢复力矩,建立船舶横摇运动的非线性微分方程。
The random waves, non-linear damp and ship non-linear restore moment are taken into consideration and the ship rolling non-linear differential equation is established.
通过与静水中线性横摇运动的比较,分析非线性阻尼力矩和非线性复原力矩对船舶横摇运动的影响。
In comparison with linear rolling in still water, the effects of nonlinear damping and righting moment on ship's rolling motions were analyzed.
该试验台架能够模拟船舶的横摇运动和横荡运动, 试验台架的转动惯量、阻尼力矩和恢复力矩可调。
The platform can analog rolling and swaying motion of ships. the moment of inertia, damping and restoring force can be adjusted.
减摇水舱性能试验摇摆模拟台是根据相似准则建立的一种模拟在波浪作用下船舶横摇运动的试验装置。
The experimental rolling simulation stand for anti -rolling tank performance is a testing facility of simulating ship rolling movement in the action of waves based on similarity rules.
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.
用时域分析方法研究了横浪情况下渔船舷侧起网时的横摇运动及其安全性,分析了起网力矩对横摇运动的影响。
This paper deals with the rolling motion and safety for fishing vessels in beam seas during hauling, and analyses effects of the hauting moment to rolling motion.
由于船舶航行时所处的海洋环境的复杂性,船舶运动是一个非常复杂的运动,船舶横摇运动是考虑得最多的船舶运动。
For the complexity of ocean environment, the motion of ship is a very complex movement. Roll is considered as the most significant motion in all of it.
为了能较好的模拟船舶在海浪作用下的横摇运动,文中首先进行了台架的特性分析,对台架的参数进行了计算与调节。
In order to simulate the rolling motion more accurately, the characteristic of platform is analyzed firstly in the paper, and also the parameter of the platform is computed and adjusted.
该试验台架能够模拟船舶的横摇运动和横荡运动,海浪作用于船舶的横摇力矩和横荡力分别由两套电液伺服系统模拟。
The platform can simulate rolling and swaying motion of ships. Two electro-hydraulic servo systems simulate rolling moment and swaying force of wave respectively.
船舶横摇运动是对船舶航行影响最大的运动,研究船舶横摇运动的建模与预报对于提高船舶适航性、耐波性有重要意义。
Because ship rolling is the heaviest motion of a ship in waves, it is important to study ship rolling modeling and prediction in order to improve ship's seaworthiness and wave-resistance.
结合小波分析和神经网络的特点,建立了应用于船舶横摇运动时间序列预报的误差反传小波神经网络结构并给出了算法。
Combining wavelet analysis and neural network characteristics, the error back propagation wavelet neural network based structure and algorithm to ship roll time series prediction are given.
可控被动水舱是一种新型的减摇水舱,它可克服传统被动水舱的缺点,在任何海况下都能较有效地减缓船舶的横摇运动。
A passive controlled antiroll tank is one of the new developments of stabilizers. It overcomes inherent defects of passive antiroll tank and damps ship rolling motion at any sea state.
本文建立了在纵浪上航行船舶的非线性参数激励横摇运动方程,研究了当升沉固有频率接近横摇固有频率时船舶的稳定性。
A nonlinear parametric excitation equation is obtained for ships in longitudinal waves, and the dynamic stability is analyzed when the natural frequency of heave and roll are approximately equal.
再次,利用多尺度法分析船舶在波浪中接近主共振、亚谐共振和超谐共振时的非线性横摇运动,并给出三种共振的近似解。
Moreover, the multiscale method was used to study the main, ultraharmonic and subharmonic resonances of nonlinear rolling in waves, and the approximate solutions of the three resonances were given.
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.
首先,本文讨论船舶非线性横摇运动中非线性阻尼力矩和非线性复原力矩的数学表达形式,并建立船舶在波浪中的非线性横摇运动方程。
Firstly, mathematical expressions of nonlinear damping and nonlinear righting moment were discussed, and the equations for nonlinear rolling motions in waves were established.
介绍了能量等分法建立随机海浪模型的方法,并利用所建立的海浪模型对未减摇船舶横摇运动和安装减摇鳍后船舶横摇运动进行了预报。
The rolling motion of an unstabilized ship and a stabilized ship equipped with fin stabilizers has been predicted by use of a random wave model.
然后模拟了二维矩形液箱做简谐横摇运动引起的液体受迫晃荡,计算结果以箱壁不同高度处的压强时间历经给出,并与实验结果进行了定量比较。
Then, the forced sloshing in a two-dimensional rectangle box is simulated, and the time course of pressure at different height of the wall was gotten and compared with that of experimental result.
首先,本文讨论船舶非线性横摇运动中非线性阻尼力矩和非线性复原力矩的数学表达形式,并建立船舶在静水中和波浪中的非线性横摇运动方程。
Firstly, mathematical expressions of nonlinear damping and nonlinear righting moment were discussed, and the equations for nonlinear rolling motions in still water and in waves were established.
首先,本文讨论船舶非线性横摇运动中非线性阻尼力矩和非线性复原力矩的数学表达形式,并建立船舶在静水中和波浪中的非线性横摇运动方程。
Firstly, mathematical expressions of nonlinear damping and nonlinear righting moment were discussed, and the equations for nonlinear rolling motions in still water and in waves were established.
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