| Research Project |
Period |
Researcher(s) |
Overview |
| Plan |
2002 |
| General Research |
|
|
|
|
| Maritime
Safety Research Field |
|
|
|
|
| 1. Basic research on
strength evaluation of aged ships |
4 |
2 |
MSRF |
Selects indexes for structural soundness
evaluation of principal members, based on the Classification Society's diagnosis
framework for aged structure (proceeded at H13). |
| 2. Research on micro
fracture of structural materials |
3 |
2 |
MSRF ATRF |
Verifies the effectiveness of ultra
fine grain-size paste for the suppression of crack propagation in cracked high-strength
steel flat plate specimens. Applicability to the welded joint also to be evaluated. |
| 3. Fundamental research
on nuclear data evaluation for high-speed neutrons |
2 |
2 |
MSRF |
Evaluates the reliability of JENDL-HE
nuclear data files based on Code MCNPX Monte Carlo analysis of benchmark experiments
of high-speed neutrons. |
| 4. Investigation of
capsizing prevention of ships |
3 |
1 |
MSRF |
Investigates real operation conditions
of fishing boats, their casualties, rules and standards applied to them. Also
evaluates experimentally and theoretically the contribution of some factors to
capsizing phenomena. Summarizes technical documents necessary for revision of
international standards concerning stability in damaged condition and full load
line. Discusses harmonization of Japanese standards for ship design and performance
with that of ISO, based on the navigation sea area. |
| 5. Research on evaluation
of anti-freeze paint coating |
1 |
1 |
|
Selects paint coating effective
for anti-freezing, based on cooperative research with Chugoku Toryo Ltd. Conducts
cooperative experiments with Mitsui Zosen Ltd. to determine anti-freeze characteristics
of selected coatings in real sea ice. Also evaluates anti-freezing effects of
selected coating on hydrate. |
| 6. Research on advanced
safety evaluation method for large-scale system |
3 |
1 |
MSRI |
Conducts evaluation experiments
on known system to develop man-machine interface evaluation technology for advancement
of the PSA method. Develops server module for automatic ET generating system to
develop a general-purpose simulator. Constructs a model for ship motion and navigation
considering ship movement in tidal water. Designs logging data characteristics
for near miss data accumulation. |
| 7. Research on safety
standards and development of advanced characteristics estimation method of ship
maneuvering |
3 |
1 |
MSRF ATRF |
Evaluates estimation precision of
ship stopping ability. Conducts model experiments of the pusher for its turning
properties and inclination angle. Develops testing method to evaluate safety of
the pusher by itself. Develops maneuvering characteristics of ship in waves, using
the stable wave load estimation method. Develops image processing program and
image data analysis for ship hulls above the water line. Develops estimation program
of fluid load in ship hulls in shallow water navigation. |
| 8. Investigation of
small ship marine accidents and fire safety standards of large ships |
4 |
1 |
MSRF ATRF SPTOPPS |
Discusses safety countermeasure
for ships, based on analysis of complicated causes of accidents, using FTA of
collision and grounding of small ships. Discusses safety countermeasures for large
passenger ships at the time of fire, emphasizing passengers' escape and smoke
control, as a contribution to IMO discussion. Prepares escape passage analysis
based on temporary guidance by FP46, by adding a new model to it. Prepares reports
for the IMO-DSC subcommittee, concerning requirements for loading and the separation
of hazardous materials in container ships with partially weather-tight hatch covers.
Discusses revision of safety practice rule for solid bulk cargo, as the contact
person in Japan of the DSC subcommittee. Also attempts to gain IMO-DSC subcommittee
members' understanding for new testing methods of liquefied material identification.
Attends ISO/TS8/SC1/WG meetings as an expert from Japan to discuss drafts presented. |
| 9. Investigation of
wave load and structural response for ship as a whole |
3 |
3 |
MSRF |
Develops load estimation method
in cargo hold due to liquid and grain materials. Develops long-term wave load
distribution for double hull tankers and bulk carriers, considering synchronization
of longitudinal and lateral load accompanied by ship motion in waves. Analyzes
structural monitoring data of 1000 tonnage type patrol boats. |
| 10. Research on advanced
design technique of highspeed craft |
3 |
1 |
MSRF ATRF SPTOPPS |
Acquires structural model of large
high-speed craft and evaluates its strength. Conducts navigation experiment of
real ships. Researches structural response calculation method of high-speed craft
in waves. |
| Advanced Transportation
Research Field |
|
|
|
|
| 1. Research on precision
control of propeller performance |
4 |
4 |
AIRF ODRF RIC |
Conducts uncertainty analysis of
unsteady pressure measurement around ship stern. Improves calculation program
of SCP performance to the level at which a non-specialist can use it. Improves
the propeller performance measuring method in oblique flow stream. Quantitatively
evaluates the effect of air bubble generation by cavitation test. Determines unified
performance evaluation of various propulser types. |
| 2. Research on performance
evaluation method for ship hull form development |
5 |
2 |
ATRF RCCFDD RIC MSRF |
Constructs new version of standard
testing method at model basin in accordance with ITTC trend. Constructs trial
measuring system effective for developing innovative hull form with flow controlling
devices such as wing to increase propulsion performance. Improves ship hull form
using CFD and confirms the fidelity of CFD evaluation. Continues to amass data
on the Seiun Maru to investigate correlation between estimated horse power from
model test basin data and that of real ships. Renews controlling system of Mitaka
No.2 model basin. Confirms the new system by comparing old and new data obtained
by towing and self-propulsion tests. |
| 3. Research on non-destructive
testing of material deterioration |
3 |
3 |
ATRF |
Investigates material deterioration
in fatigue process, based on the ultra sonic wave attenuation parameter measuring
method, measuring the relation between ultra sonic wave frequency and its attenuation
parameters. Builds new framework of inspection system, based on critical investigation
into the status quo of inspection technologies. |
| 4. Fundamental research
on next generation ship building technology |
3 |
3 |
|
Quantitatively analyzes steel plate
plastic bending by line-heating, based on data concerning the relation between
amount of deformation and thermal cycle due to heat input by various gases and
water cooling. Constructs a framework for software of steel plate bending works
based on the results obtained and analysis of them. Clarifies controlling elements
of multi electrode welding to maintain curved structure blocks in high-grade precision.
Database concerning the above to be constructed. Develops a numerical control
method of painting and also establishes a framework of automatic painting, based
on investigations into the whole painting process. Conducts ultra sonic continuous
inspection of welded joint to reveal latent defects. |
| 5. Research on application
of precise structure analysis technology for new material evaluation method |
3 |
2 |
ATRF EERF |
Investigates erosion and failure
mechanism by pulsating friction of high heat resistant materials using electron
microscope. Also investigates the relation between the microscopic structure of
the fractured surface of failed parts of marine accidents and causes of the failure.
Investigates relation among electrolytes of fuel cell, boundary structure of electrode
and electric generation ability. Analyzes characteristics of 3-dim microstructure
of fractured surface, failed by torsion fatigue test with various stress ratios.
Obtains fundamental data relating to elastic energy propagation in materials used
for ship building. Investigates relation between improved composition/structure
by thermal spraying the surface layer and its anticorrosion properties. |
| 6. Research on ship
navigation with quick coming alongside and off pier |
3 |
3 |
ATRF |
Examines, by real ship, the shortest
time to come alongside and off pier handling method induced from the special model
created for it, and also analyzes characteristics of real ship data obtained.
Develops indication system to show the handling method, as a guideline to navigators |
| 7. Fundamental research
on the development of user friendly navigation support system |
2 |
1 |
ATRF |
Investigates navigation instruments
and HI devices that can be used for navigation support systems like IBS. Assumes
responsibility for IMO NAV. Develops effective indication method of ARPA information.
Establishes difficulty evaluation of escape navigation. Also improves design of
sound input and output information supporting devices. Increases function of navigation
simulator, considering connection of the HI device. Investigates usability improvement
of radio instruments for GMDSS. Assumes responsibility for IMO COMSAR. |
| 8. Research on countermeasures
against noise and shock in ships |
3 |
1 |
|
Vibration response analysis of air-supported
floor (ASF): Verifies precision of ASF's vibration response calculation using
analytical model and FEM analysis. Obtains technical data useful for ship equipment,
based on analyzed examples of the relation among materials used, their dimension
and vibration insulating effect. |
| 9. Research on advanced
strength analysis of ship structure |
|
|
|
Advanced fracture analysis of ship
structure: Conducts buckling and folding mode fracture experiments of ship hull
partial models, and also conducts FEM simulation of these fractures. Conducts
precise analysis of experiments, comparing results of FEM analysis and experimental
data. Strength evaluation of layered structure: Discusses analytical method of
strength evaluation of layered structure, considering non-linearity of materials,
buckling of materials. Conducts material testing to confirm precision of calculation. |
| Offshore Development
Research Field |
|
|
|
|
| 1. Investigation of
realization technology for FNGPSO (Floating Multi Goal Production, Storage and
Offloading System |
2 |
2 |
ODRF |
Conducts experiments in water basins
and in wind tunnels, using models designed for multi-purpose gas FPSO, based on
results obtained by experiments in fiscal year H13. Conducts risk evaluation,
based on the comparison of experimental results and those of theoretical calculation
and also using DNV PROBAN (NMRI is the only user of it in Japan). Compares the
results above with those of the ABS design review. |
| 2. Research on wave
generation method in circular model basin |
2 |
2 |
ODRF |
Creates wave generation theory from
circular model basin with discrete absorbers all around the tank edge. Performs
simulation calculation for one and multi directional irregular waves. Discusses
precision of wave generation. |
| 3. Fundamental research
on behavior of floating elastic structure supported by columns |
3 |
2 |
ODRF |
Completes dynamic response calculation
program, considering fluid viscosity. Reconfirms the program by model experiment.
Constructs simulation program for wind, wave and flow field and confirms the program
by 2-dim experiment. |
| 4. Research on restoration
of spilled oil in sea ice |
1 |
1 |
ODRF |
In fiscal year H12, experiments
in an ice model basin were conducted to show qualitatively the property of the
ice-oil separation method by upward jet flow, using a small facility (separation
breadth-0.8 m) settled in the ice basin. □Conducts separation experiment, in fiscal
year H14, using a scaled-up facility (separation breadth-around 3 m), with experimental
parameters such as air flow amount, bubble diameter (nozzle diameter of nozzle
bubble generator), place and position of bubble generating pipes, ice density,
bottom shape of ice flakes and so forth. Evaluates separation effect by efficiency
of separation (ratio of initial amount of oil to that of separated one). |
| 5. Research on icebreakers
for Antarctic use |
1 |
1 |
ODRF CFDC |
The sea ice condition around the
Japanese Antarctic Expedition Base has changed year by year. The icebreaker SHIRASE
has suffered from heavy ice conditions so conducts sea-ice going model icebreaker
tests in the model basin using two types of ice such as hammock ice and multiyear
ice. One of the characteristics of the icebreaker is that it has a bow with a
large flare angle to reduce ice resistance so evaluates propriety of performance
estimation of icebreakers in waves using numerical calculation, based on comparison
of calculated results and model experiment results. Collects and analyzes thickness
data of Antarctic sea ice obtained by NMRI, 42nd, 43rd and other Antarctic research
expeditions. |
| 6. Fundamental research
on interaction between non-linear flow and wave motion field in stratified ocean |
3 |
1 |
ODRF |
Summarizes experimental results
of breaking waves as the Japan France cooperative research program, and publishes
in foreign journals. Conducts more detailed experiments using the French budget.
Clarifies generation possibility of Rogue Wave, based on theoretical calculation
of surface wave propagation in non-linear tidal wave with arbitrary horizontal
shear and specified vertical shear. Continues analysis of ocean wave data obtained
by other organizations to verify the theory. |
| 7. Research on pumping
up riser for deep sea water |
2 |
1 |
ODRF |
For riser, attached to a floating
structure, for pumping up deep sea water: Measures behavior of upper floating
structure/steel pipe riser model under conditions of wave and tide in the deep
sea model basin. For flexible riser for pumping up deep sea water: Clarifies scale
effect of models on measured results, based on experiments using two different
scale models. Analyzes vibration response, based on measured results by adding
vibration to upper structure. |
