搜索结果: 1-11 共查到“船舶与海洋工程 Propeller”相关记录11条 . 查询时间(0.125 秒)
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...
Experimental Study on Propulsive Performance of Surface Piercing Propeller
Surface Piercing Propeller Horizontal Rake Angle of Propeller Shaft Immersion Ratio Propeller Efficiency Design Chart High Speed Vessel
2009/5/12
It is generally known that the screw propeller has the highest efficiency in the marine propulsive devices. For fully submerged propeller it is well known that cavitation phenomena on propeller blades...
Analysis of Unsteady Viscous Flows around a Highly Skewed Propeller
CFD Propeller Unsteady Flow Highly Skewed Propeller Viscous Flow
2009/5/12
The author presented previously the computation results of the steady flows around a highly skewed propeller in uniform flows for the sake of the design rationalization of a low noise propeller. In ac...
A Study of On-Board Monitoring and Analysis System of Ship Propulsion Performance-An Estimation Method of Propeller Performance with Surface Roughness Effects
Propeller Performance Surface Roughness Ship Propulsion Performance Monitoring
2009/5/12
The propulsion performance of actual ship at sea tends to deteriorate mainly due to the fouling of hull and propeller. It is important, therefore, to monitor the present situation of ship propulsion p...
On Influence of Propeller Geometry on Underwater Noise of Propellers
Propeller Underwater Noise Cavitation Highly Skewed Propeller Propeller Design
2009/5/12
Low-level noise propellers with a higher propulsion performance are required lower incipient cavitation number of tip vortex cavitation and even if tip vortex cavitation is developed, to depress the u...
Cavitation test on a straight leading edge propeller and a tip rake propeller
cavitation a straight leading edge propeller a tip rake propeller SLEP
2009/4/29
The cavitation phenomena, such as tip vortex cavitation, leading edge vortex cavitation or sheet cavitation on a propeller increase vibration and noise. In order to reduce vibration and noise, the ext...
Calculation of Steady Cavitation on a Marine Propeller Using a Simple Surface Panel Method
Steady Cavitation Marine Propeller Simple Surface Panel Method
2009/4/27
This paper presents a calculation method for the steady cavitating propeller problem. The method is based on a simplified surface panel method "SQCM" which satisfies the Kutta condition at a time even...
Design and model tests of a backward tip rake propeller for a low speed ship
unconventional blade rake propeller
2009/3/27
The design of unconventional blade tips has been studied for many years to increase propeller efficiency.
Cavity Formation and Bearing Force Caused by Air Ventilation on Marine Screw Propeller
merchant propeller efficiency
2009/3/27
Large diameter and low rotational speed propellers have been applied for a number of merchant vessels to improve the propeller efficiency, while the propeller immersion has become small relatively.
Prediction of Unsteady Propeller Performance Including Wake Alignment
SQCM wake geometries
2009/3/27
This paper presents a calculation method for the trailing wake geometries shedding from marine propeller in steady and unsteady flows. The method is based on a simplified surface panel method "SQCM".
船用齿轮箱与表面桨的完美结合(Combination of ZF dual speed ratio-gearbox and TRIMAX surface propeller)
船用齿轮箱 表面桨 结合
2008/6/17
德国ZF公司是一家全球性的传动系统供应商。其船用齿轮箱产品的功率范围从7kW到7MW应有尽有，
配有先进的电子遥控系统，速比可以根据用户的需求匹配，以其高可靠性而著称。
近几年来，我国自行设计建造的轻型高速艇优先选用
德国ZF船用变速箱已成为趋势。1995年建成的160客位喷水
推进双体侧壁气垫船“铁城”号，1996年我国自行设计建
造的第一艘川江型水翼客船“歌乐山”...