搜索结果: 1-15 共查到“船舶与海洋工程 Resistance”相关记录17条 . 查询时间(0.126 秒)
Development of Resistance Test for High-Speed Planing Craft Using Very Small Models—Scale Effects on Drag Forces—
High-Speed Planing Craft Resistance Test Scale Effects Drag Force Lift Force Frictional Resistance Residual Resistance Transom Stern
2009/5/18
In order to develop a resistance test method for high speed planing craft using a very small model, the scale effects on wetted surface area, frictional resistance and pressure forces acting on a smal...
Wave Making Resistance of Ships in Shallow Water Based on Second Order Free Surface Condition with Sinkage and Trim Effects
Resistance Boundary Element Method Shallow Water Morino Perturbation Method Free-Surface Flow
2009/5/12
The problem of free surface potential flow around a ship in shallow water is subjected to linearized form of free surface condition and kinematic conditions on the body and bottom surface. The solutio...
On Reconsideration on Flat Plate Frictional Resistance
Friction Coefficient Flat Plate Boundary Layer Theory Schoenherr's Formula Verification of CFD
2009/5/12
This paper presents a new friction coefficient of flat plate in wide Raynols number range. The main purpose of this study is to present a verification data for CFD calculation, which will be applied t...
Influence of Surface Properties of Coatings to Frictional Resistance
Frictional Drag Reduction Self-Polishing Paint Water-Repellent Paint Sand Roughness Scale Effect
2009/5/12
In order to clarify correlation between properties of coating on ship hull surfaces and frictional resistance, experimental studies were carried out. A rotating cylinder type dynamometer was newly dev...
Effect of Transom Stern Bottom Profile Form on Stern Wave Resistance
Transom Stern Bottom Profile Form Stern Wave Resistance Model Test Small Model Ships
2009/5/12
When a ship with a wide immersed transom stern runs on a deeper draft than its design draft, forward-oriented wave breaking often occurs just behind the transom stern. The phenomenon accompanies large...
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...
Influence of Outrigger Position on the Performaces of a High Speed Trimaran(1st Report: Resistance and Wave Wash)
Outrigger Position High Speed Trimaran
2009/4/30
Influence of outrigger position of a high speed trimaran on the resistance and wave wash was investigated by the tank tests changing 9 outrigger positions of the trimaran model. The trimaran is compos...
Added Resistance in Waves and Amplitude Function Expressing a Ship Hull Form
Added Resistance Waves Amplitude Function Ship Hull Form
2009/4/29
Estimating added resistance in waves linked to ship speed drop and an increase of horse power is getting more importance with fuel price hiking these days. Calculated results of the added resistance b...
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 ...
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...
Development of an affix-type multipoint pressure sensor by use of FBG-2nd Report: Multipoint pressure measurements on the surface of model ship in resistance test-
affix-type multipoint pressure sensor Multipoint pressure measurements model ship
2009/4/22
An affix-type multipoint pressure sensor was developed by using the Fiber Bragg Grating (FBG) technology. In the 1st report, the measurement system of FBG pressure sensor was described and the perform...
Improvement on the Fatigue Life of Welded Joints by the Synergy Effect of Ultrasonic Impact Treatment and Steel with High Resistance to Fatigue Crack Growth
Fatigue Life Welded Joints Ultrasonic Impact Treatment High Resistance Fatigue Crack Growth
2009/4/16
The extension of the fatigue life of welded joints has been in demand to improve the safety and reduce the life cycle cost of ships.To meet such demand, it is effective to apply post-weld treatments w...
Investigation on Components of Added Resistance in Short Waves
Components Added Resistance Short Waves
2009/4/10
In order to estimate decrease of ship speed in actual seas, it is important to calculate added resistance in waveswith accuracy. Especially added resistance in short waves is one of the predominant fa...
Study on Wave-making Resistance Reduction in Multiple Load Conditions
Wave-making Resistance Multiple Load Conditions
2009/3/30
Practical ships have different operating speed, draft and trim for every load conditions. Therefore, in the case of hull form improvement, it is necessary to develop a different hull form for every co...
Study on Multiobjective Hull Optimization for Reducing Wave-making Resistance and Wave-breaking
wave-making observing
2009/3/27
Ships with underwater acoustic equipments are required high propulsive performance and low noise. This requirement means, from view point of wave-making characteristics, these kinds of ships need hull...