| Research
Project |
Period |
Researcher(s) |
Overview |
| Plan |
2002 |
| Special Research |
|
|
|
|
| 1. Research on Drifting
Prevention of Disabled Ships in Rough Seas |
5 |
5 |
Environment and Energy Department |
|
| (1) Study on Drifting
Motion |
5 |
5 |
|
(1) Incorporates a calculation program for estimating
steady drifting motion into the optimum towing support system. (2) Incorporates
a calculation program of drifting velocity by waves into the system for predicting
the drifting route developed and operated by the Hydrographic and Oceanographic
Department of the Japan Coast Guard, and improves accuracy of the system.
(3)
Incorporates a drifting resistance component into each calculation program to
estimate steady drifting motion in the optimum towing support system, and calculation
program to estimate drifting velocity in the drifting route prediction system. |
(2) Study on Optimum
Towing Method |
5 |
5 |
Environment and Energy Department & Ocean and
Ice Engineering Department |
|
| 2. Research on a Hull
Form Design Methodology of High-Speed Inland Ships Using the Concept of Simulation
Base Design (SBD) |
5 |
3 |
CFD Research Center |
|
| (1) Study on Simulation
Technique for Estimation of Performance in Actual Cruise Condition |
5 |
3 |
CFD Research Center, Advanced Maritime Transport
Technology Department & Maritime Safety Department |
(1) Develops a fluid field simulation technique
considering the propeller hull interaction in regular waves. Conducts tank tests
on the original hull form in regular waves to accumulate the data for verification.
(2) Proposes an estimation method of fluctuating pressure on stern corresponding
to the guideline of propeller design, and also proposes a technique incorporating
it into the SBD concept.
(3) Improves the calculation method of ship motion with
large amplitude. (4) Using an optimization technique fitted to the hull form design,
investigates effective methods of hull form modification. |
| (2) Study on Estimation
of Operation Limit in Actual Cruise Conditions |
4 |
3 |
Maritime Safety Department & Advanced Maritime
Transport Technology Department |
(1) Evaluates quantitatively factors prescribing
operation limit in waves. (2) Develops an evaluation method of steering performance
in port and harbor areas. |
| 3. Research on Safety
of Super-deep Riser System (SRIS) |
5 |
2 |
Ocean and Ice Engineering Department |
|
| (1) Study on Behavior
of Deep-sea Riser |
5 |
2 |
Ocean and Ice Engineering Department & Advanced
Maritime Transport Technology Department |
(1) Establishes an experimental methodology on
riser behavior in the deep-sea basin. (2) Conducts vibration tests using a simple
riser model in one direction in the deep-sea basin to investigate characteristics
of its behavior.
(3) Develops a simplified program for analyzing riser behavior
by a simplified behavior analysis method. (4) Examines papers or books relating
to exact methods of behavior analysis. |
| (2) Study on Structural
Strength of Deep-sea Riser |
5 |
2 |
Ocean and Ice Engineering Department & Advanced
Maritime Transport Technology Department |
(1) Studies structure optimization of the joint
parts of the CFRP riser by experiment and numerical analysis. (2) Studies the
strength of the CFRP riser against axial load and internal-external pressure by
experiment and numerical analysis.
(3) Establishes a methodology of experiment
and measurement in a high pressure tank. |
| 4. Research on Formal
Safety Assessment (FSA) Technique to Develop Safety Criteria-(Part 1) Development
of Evaluation Method of Fire Risk for Passenger Ships |
4 |
4 |
|
(1) Examination of accident scenario: Examining
fire accidents on passenger ships as well as the victims of smokeinhalation, produces
a fire accident scenario. Examining the place of fire outbreak, acquires its statistical
distribution. (2) Development of simulation program of smoke flow: Attempts to
stabilize solution convergence of a two-layer zone model obtained so far. Models
smoke flow in large spaces such as atrium and restaurant. Models smoke flow in
the case of leaning ship.
(3) Development of evacuation simulation program: Introduces
a route producing module to avoid obstacles such as tables and chairs, and a route
selection model obtained by evacuation simulator experiments into the existing
evacuation simulation program using the coordinate model obtained so far. (4)
Examination of large-scale smoke flow experiment and supplementary experiment:
Examines a large-scale smoke flow experiment conducted hitherto to verify the
smoke flow simulation program. (5) Experiment and examination of evacuating people's
behavior: Examines papers on the factors affecting the behavior of evacuating
people. Conducts evacuation simulator experiments to investigate the effects of
accommodation space structure, congestion and smoke, and the effectiveness of
leading by sound and indicators. |
| Sub-Special Research |
|
|
|
|
| 1. Research on Extreme
Wave Load Acting on Hatch Covers |
3 |
2 |
Maritime Safety Department |
(1) Conducts tank tests to measure macroload acting
on ship structure such as bending/torsional moment and shearing force in heavy
seas using the model divided into 4 parts. (2) Develops the most accurate estimation
method of relative water level at bow based on the unified theory, which can calculate
exact diffraction forces.
(3) Develops a calculation method of ship motion and
elastic response to wave load considering the effect of elasticity of the ship's
hull. |
| 2. Research on Barrier
Free Passenger Ships |
4 |
2 |
Maritime Safety Department & Advanced Maritime
Transport Technology Department |
(1) Develops a simulation technique to clarify
wheelchair behavior including operation limit in rough seas. (2) Manufactures
and improves wheelchair assistant devices.
(3) Proposes a measure to mitigate
restricted traveling by wheelchairs on board, and verifies its usefulness. (4)
Investigates the establishment of an information offering system to disabled people
unable to access information. (5) Extracts essential factors for the safe evacuation
of disabled persons. (6) Adds an algorithm for disabled persons to the evacuation
simulation system. |
| 3. Research on Advanced
Analysis Technique of Distribution Information in IT Era |
3 |
1 |
Advanced Maritime Transport Technology Department
& Environment and Energy Department |
(1) Route organizing technique for ocean going
liner: Organizes the optimum route in the Pacific Ocean route between the west
coast of the US and Asia using GA. (2) Estimation of greenhouse phenomenon in
the ocean by the global maritime transport model and measures to prevent it: Develops
a total system and estimates trading data.
(3) Demand estimation and calculation
of optimum ship design for intermediate/short distance ferries and Ro-Ro ships:
Designs new routes, produces networks and estimates demand. (4) Simulation technique
of domestic distribution: Simulates land/sea distribution aiming at industry with
maritime transport goods as principal goods. (5) Role of inland sea transport
in new era land plan: Examines a land plan and its global logistics. (6) Emergency
transport system using rivers: Examines the possibility of using inland rivers
and the actual situation of river utilization in foreign countries. |
