搜索结果: 31-45 共查到“知识库 船舶驾驶、航海学”相关记录127条 . 查询时间(2.646 秒)
超大型船舶靠泊烟台港三期码头引航方法
超大型船舶 拖轮 引航
2009/6/19
本文简要概述了超大型船舶的操纵特性以及在引航过程中需采取的克服应对办法，介绍了“Z”型传动推进器拖轮的特性及其在超大型船舶引航过程中的使用方法；结合作者自己多年的引航经验和烟台港的实际归纳介绍了超大型船舶靠泊烟台港三期码头的引航办法。
浅谈船舶如何使用安全航速
船舶 安全航速
2009/6/19
安全航速是指能采取适当而有效的避让行动，并能在适合当时环境和情况下的距离以内，把船停住的速度，在内河也应是避免浪损的速度。从碰撞事故的统计来看，速度高是导致船舶碰撞的重要因素之一，尤其是在能见度不良时。同时，它也是导致浪损事故的主要原因。所以，为避免这些事故发生，船舶航行就必须采用安全航速。
珠江内河船舶驾驶员实操技能的培养
船舶 船员 技能 培养
2009/6/19
文章结合安全生产的要求，分析了珠江航道的特点，指出珠江内河船舶驾驶员实操技能培养存在的问题，结合珠江航道的特点和实际工作经验，提出加强珠江内河船舶驾驶员实操技能培养建议。
Experimental Verification of Simulation for Navigation Utilizing Current Sailing
Navigation Optimum Routing Current Sailing Tidal Current Simulation
2009/5/19
This paper deals with the effects of tidal currents on the weather routing for a small vessel in a narrow sea area. The computer simulation of the sailing based on the tidal simulation is carried out ...
The Experiment and Numerical Calculation of Propeller Performance with Surface Roughness Effects
Propeller Performance Surface Roughness Boundary Layer
2009/5/18
As well known, propeller and hull of ship are fouled and their surface are roughened due to various causes such as adhesion of sea-lives, painting degradation, cavitation erosion etc. The surface roug...
Free Surface Potential Flow around Multi-Hulls in Shallow Water Using a Potential Based Panel Method
Wave Making Resistance Lifting Body Shallow Water Free Surface Boundary Element Method Sinkage and Trim
2009/5/18
The present paper investigates the shallow water effect on the hydrodynamic characteristics of lifting body such as wave resistance, sinkage and trim using a potential based boundary element method. T...
Wave Maker in a Circulating Water Channel
Wave Maker Waves Generated by an Oscillating Object in a Uniform Flow Theory of Oscillating Planing Plate Wave-Suppressor-Plate
2009/5/18
An apparatus of exciting a wave-suppressor plate usually equipped at outlet top of a circulating water channel (CWC) in heave and pitch motion is devised for making a progressive wave system with only...
On Inception of Tip Vortex Cavitation of Marine Propellers
CFD Propeller Tip Vortex Cavitation Cavitation Inception
2009/5/12
The author presented the analytical method of steady viscous flow around a highly skewed propeller in uniform flow with the main object of the design rationalization of a low noise propeller. In order...
A Practical Correction Method for Added Resistance in Waves
Practical Correction Method Added Resistance Waves
2009/5/6
In order to estimate ship speed in actual seas it is important to calculate added resistance in waves with accuracy. Added resistance in waves usually appends the effect of wave reflection to added re...
An Experimental Study on Seakeeping Characteristics of a Fast Wave-Piercing Catamaran in Real Seas
Seakeeping Characteristics Fast Wave-Piercing Catamaran Real Seas
2009/4/29
A wave-piercing catamaran was developed in Australia, and has been increasing in size for these twenty years. The first largest wave .piercing car ferry, "Natchan Rera" was built in Australia and intr...
Cruising performance of ships with large superstructures in heavy sea—1st report: Added resistance induced by wind
large superstructures in heavy sea wind MMG
2009/4/29
From economical and safety aspects the assessment of steady-state cruising performance of ships under heavy wind loading is very important. A large passenger ship and a PCC with a very large hull and ...
A New Estimation Method of Wind Forces and Moments acting on Ships on the basis of Physical Component Models
wind forces wind moments physical component models
2009/4/29
A new method to estimate longitudinal and lateral wind forces, and yaw and heel moments for ships is presented in this paper. The proposed estimation procedure is based on physical component models of...
Estimations of Motions and Added Wave Resistance of Ships Advancing in Waves by a Time-Domain Hybrid Method
a time-domain hybrid motions wave resistance of ships
2009/4/29
In this paper, we apply the method to simulate ship motions in regular head waves and also to estimate added wave resistance for four ships; two modified Wigley models, Series-60 (Cb = 0.6) and Series...
Influence of Outrigger Position on the Performaces of a High Speed Trimaran
Outrigger Position High Speed Trimaran
2009/4/29
Influence of outrigger position of a high speed trimaran on the maneuverability was investigated. The trimaran is composed of the center hull with L/B = 8.0 and B/T = 3.57 where L, B and T denote the...
Influence of Outrigger Position on the Performaces of a High Speed Trimaran
Outrigger Position High Speed Trimaran Wave-Induced
2009/4/29
Influence of outrigger position of a high speed trimaran on the wave-induced motion was investigated. The trimaran is composed of the center hull with L/B = 8.0 and B/T = 3.57 where L, B and T denote...