Prediction of coupled pitch-heave based on grey dynamic MGM(1,n) model;
基于灰色动态MGM(1,n)模型的舰船纵摇—升沉运动预报
Calculation of pitching and heaving of a catamaran;
双体船纵摇和垂荡运动的理论计算
The experimental methods and process are introduced in this paper for a catamaran rolling and pitching in regular waves, as well as the determination of some parameters of motion.
介绍双体船在规则波中的横摇和纵摇运动的试验方法和试验过程及运动参数的确定 ,主要研究了有无舭龙骨和重心高度变化对船舶运动性能的影响 ,并根据试验结果计算了在不规则波中的摇摆运动性能。
Simulation of heaving and pitching motion of fast boat with hydrofoils;
高速水翼船垂荡与纵摇运动模拟(英文)
High-efficient flap type rudders with 45°dip angle are installed in order to control the course, rolling and pitching simultaneously.
采用45°倾斜安装的高效襟翼舵实现航向、横摇、纵摇的同时控制,阐述了斜舵减摇原理,并提出了采用高效襟翼舵以获得较高的升力系数,从而在不加大舵面积的情况下实现船舶纵摇运动控制。
The seakeeping performance of a 30 000 kN ferry has been studied by means of model tests, which gives the maximum angles of rolling and pitching, maximum heaving amplitude as well as the heaving acceleration on the gravity center.
对船模进行耐波性试验 ,给出实船的最大横摇角、纵摇角、升沉幅值和船舶重心处的垂向加速度 ;分别用稳性规范和内河船稳性规范中的起重船横摇角公式对试验所得实船最大横摇角进行验算比
The bridging construction technology at the condition of large longitudinal slope and falling slope
在线路纵坡大且下坡条件下的架桥施工技术
From site selection,type selection,longitudinal slope setting and other aspects the design of culvert is elaborated,in order to ensure design quality of mountain highway and reduce engineering cost.
从桥梁选型和桥跨布置两方面介绍了山区桥梁的设计,并对山区桥梁设计应注意的问题进行了分析,从涵位的选择、选型、纵坡的设置、涵洞的进出口处理几方面阐述了涵洞设计,以达到保证山区道路设计质量的同时,降低工程造价的目的。
Taking cement concrete pavement structure as object of research,the 3-D finite element is used to analyze variation of stress upon pavement structure under standard axle load under different longitudinal slope conditions.
以水泥混凝土路面结构为研究对象,采用三维有限元方法分析不同纵坡条件下路面结构在标准轴载作用下的应力变化。
The casting yard design of steep longitudinal gradient small radius bridgehead connection
大纵坡小半径桥头接线预制场设计
So the relationship between longitudinal gradient,grade length limit,vertical curve and safety is analyzed,which can be referred to improve the safety and optimize the profile design.
根据下坡路段事故统计资料,分析纵坡坡度、坡长、竖曲线和下坡衔接平曲线与道路安全的关系,为提高长大下坡路段安全,优化纵面设计提供参考。
gyro pitch and roll recorder
纵摇横摇陀螺记录仪
An Investigation on the Effects of Pitching Reduction of Ships Equipped with Anti-Pitching Rudders in Waves;
抗纵摇舵对船舶在波浪中减摇效果研究
Low frequency heave and pitch motions of FPSO in shallow water
浅水FPSO垂荡和纵摇运动的低频响应
Unstability of coupled heave-pitch motions for Spar platform
Spar平台垂荡—纵摇耦合运动的不稳定性
Instability mechanism of coupled heave-pitch motions for Spar platform
Spar平台垂荡-纵摇耦合运动失稳机理
Internal Resonant Responses of Heave-Pitch Coupled Motions of Classic Spar Platform
传统Spar平台垂荡-纵摇耦合内共振响应
The complex motion can be divided into six motions including rolling, pitching, yawing and surging when the ship act a rigid body, swaying, heaving.
如将船体看作刚体,则这种复杂的运动可分解为横摇、纵摇、首摇和纵荡、横荡、垂荡六种运动。
Analysis of Hydrodynamic Loads and Coupled Heave-pitch Motion for Spar Platform;
Spar平台水动力载荷及垂荡—纵摇耦合运动分析
Research on ships slanting rudder anti-pitching generalized predictive control based on the disturbance compensation
基于斜舵的船舶减纵摇复合广义预测控制研究
Prediction of ship pitching based on an improved Grey GM(1,1) model
基于改进GM(1,1)模型的舰船纵摇运动预报
The Study of Comparisons among AR method and Multi-level recursive method to ships' pitching movement
船舶纵摇运动预报AR法与多层递阶方法比较研究
Propulsive performance and flow field characteristics of a 2-D flexible fin with variations in the location of its pitching axis
不同纵摇轴位置下的二维柔性鳍推进性能与流场特性研究(英文)
Study on the Maneuvering Indices of Ship Equipped with Fin Stabilizers
装置减摇鳍船舶操纵性指数测定研究
Study on the Nonlinear Rolling and Capsizing Mechanism of Ship in Random Longitudinal Wave
船舶随机纵浪中非线性横摇及倾覆机理研究
Study on the Parametrically Excited Nonlinear and Random Roll of Ships in Longitudinal Waves;
纵浪中船舶参数激励非线性随机横摇研究
The schooner rolled and plunged, fetching up on her anchors with a crash which for the first time they could hear.
纵帆船摇了几摇，前后颠簸了两下，紧拉着锚链，发出一声震响，这是大家第一次听到的响声。
either of two lengthwise fins attached along the outside of a ship's bilge; reduces rolling.
依附在船底外的两条纵长的鳍板之一；减少船的摇晃。
Simulation and characteristics analysis of the coupling motion of maneuvering and rolling for a ship in regular waves
规则波浪中舰船操纵与横摇耦合运动模拟及特性分析