搜索结果: 121-135 共查到“知识库 船舶原理”相关记录185条 . 查询时间(2.437 秒)
Numerical Investigations of Hydrodynamic Forces Acting on a Ship Hull under Lateral Low Speed Motion
Berthing Maneuver Transitional Hydrodynamic Forces Lateral Motion Lateral Drag Force CFD Simulation
2009/5/18
This paper describes the hydrodynamic forces acting on a ship hull undergoing lateral berthing maneuver. The hydrodynamic forces acting on the ship hull shows quite complicate and transitional charact...
On the Characteristics of an Absorbing Wavemaker with a Cross Section Having a Plumb Part near the Free Surface
Absorbing Wavemaker Active Wave Absorption FIR Digital Filter Absorption Efficiency Cross Section with a Plumb Part near the Free Surface Wave Reflection
2009/5/18
The characteristics of a plunger absorbing wavemaker are studied. In the present wave absorption system the wavemaker is controlled to absorb the incoming waves by means of digital filtering of wave e...
Dynamic Elastic Large Deflection Analysis of Rectangular Plate under Thrust
Secondary Buckling Buckling Strength Dynamic Elastic Large Deflection Analysis Snap-Through Phenomenon Analytical Formulation
2009/5/12
Fundamental equations for static/dynamic elastic large deflection analysis are derived to simulate the snap-through behaviour which takes place when a plate undergoes secondary buckling under inplane ...
Application of the p-version Finite Element Method to Stress Singularity Field Problems
Finite Element Method Welding Crack Problem Stress Singularity Stress Intensity Factor
2009/5/12
The stress singularity exists at the crack tip and the weld toe. The stress singularities are expressed by a term of −1/2 power of distance r from the singular point for the crack tip, and ͨ...
A Method for Estimating Collapse Strength and Reliability of VeryLong Box-type Floating Platforms under Extreme Wave Loads
Collapsing Behavior Analysis Dominant Failure Mode Hydro-Elasticity Short-Term Prediction VLFP
2009/5/12
This paper deals with a method for estimating collapsing behavior and reliability of very long box-type floating platforms (VLFP) under extreme wave loads. First, a simplified estimation method is pre...
Study on Estimation Method of Heat Transfer during Line-Heating Process by using Inverse Heat Conduction Analysis
Line-Heating Manufacturing Practice Heat Transfer Inverse Heat Conduction Analysis
2009/5/12
The experimental results obtained in the previous reports lead us to a new hypothesis that the relative distribution of gas temperature and local heat transfer coefficient around the torch remain unch...
Float Off Operation of a Semi-Submersible Barge with Unsymmetrical Floater Arrangement
Semi-Submerisible Barge Stability Floater Float off
2009/5/12
When a large size offshore structure such as Spar transported by a semi-submersible barge floats off, floaters located at the corners of the barge sometimes become obstacles for the operation. Especia...
A Consideration on Nonlinear Component of Maneuvering Hydrodynamic Force from Segmented Model Test Results—Effect of Shallow Water—
Maneuverability Hydrodynamic Force Nonlinear Component Segmented Model Shallow Water
2009/5/12
This report presents some experimental results of maneuvering hydrodynamic forces obtained from segmented model tests at finite water depth. The experiments were carried out in order to make clear the...
On the Towline Tension of the Patrol Boat During Towing
Full-Scale Measurement Towline Tension KGPS Elongation Patrol Boat
2009/5/12
When the tug tows the shipwrecks in rough seas, the large dynamic towline tension occurs due to the relative motion between tow and towed ship and causes the breakage of the towline. There occurs such...
Characteristics of Longitudinal Motions of a Planing Craft in Head Waves at Very High-Speed—Effect of Surging on Heaving and Pitching—
High-Speed Planing Craft Stability Longitudinal Motion Surge Heave Pitch
2009/5/12
In this study, characteristics of longitudinal motions of a planing craft running at very high-speed in regular head waves are experimentally and theoretically investigated. The results of experiments...
On the Influence of Loading Condition on Characteristics of Hydrodynamic Forces in Steering Motion—Study with a Component-Type Mathematical Model—
Hydrodynamic Forces Acting on a Hull Component-type Mathematical Model Loading Condition Coefficient of Hydrodynamic Characteristics
2009/5/12
The authors have developed a component-type mathematical model of hydrodynamic forces acting on a ship hull in steering motion that is deduced from the simplified vortex model. This mathematical model...
Sailing Performance Prediction of AC Boat by Use of CFD Analysis for Sails
Sail Velocity Prediction Program International America’s Cup Class CFD
2009/5/12
The optimization of the flying sail shape is performed for an International America’s Cup sailing boat by use of CFD code for the sails. After grid test is made to confirm the degree of accuracy, high...
A Method to Confirm Scale Effect of Stern Waves due to a Transom Stern
Stern Waves Scale Effect Scale Effect Confirmation Method Small Model Ships
2009/5/12
When a ship with a wide immersed transom stern runs on a deeper draft, forward-oriented wave breaking often occurs just behind the transom stern. Stern waves in such condition can be considered to con...
On the Damage of the Acoustic Window at the Bottom of an Ocean Observation Ship
ADCP Breaking Acoustic Window Water Pressure Slamming Short Term Prediction
2009/5/12
The circular plastic window (we call it as acoustic window) at the bottom of a large ocean observation ship was broken sometimes. This window is a cover of the downward hole of the recess of the ADCP ...
A Study of Nonlinear Fluid Phenomena with Particle Method (part3)-Waves and Floating Body Simulation
MPS Method Nonlinear Problem Above Water Hull Form Damage Stability
2009/5/12
Numerical simulation of progressive waves and floating body's motions with particle method (MPS method) are examined. Availability of the particle method for wave problems is considered through calcul...