Reducing GHG emission from ships and realizing green innovation, the department is conducting research and development based on ship fluid dynamics. The department is engaging research on evaluation of ship performance in actual seas, fluid control to improve hull form, high efficiency energy saving device and advanced tank testing technology.
Three groups conduct research aimed at the assessment and improvement of the performance (propulsion, maneuverability, sea keeping, stability, etc.) of vessels at sea, and they contribute to the improvement of shipping safety by providing technical support for investigations to determine the cause of marine accidents and to create international standards. In addition, they are also developing world leading and highly reliable CFD software for ship hydrodynamics, which are released to mainly domestic ship yards．
In order to improve the safety assessment method of hull structure (yielding, buckling, fatigue strength, and ultimate strength as well as collision, vibration, noise, and reliability assessment), we conduct research on estimation of wave loads acting on hulls and simulation of structural response and collapse. Besides, the relevant water tank tests and large-scale structural experiments are carried out to validate and improve the performance of our simulation model. The research of development for hull structure monitoring system is conducted in conjunction with the advanced simulation model.
To contribute to the construction of safe and economical vessels, the establishment of a reasonable structural strength assessment method is required. Therefore, we are studying the corrosion characteristics and fatigue strengths of materials.In addition, we are working on the research of production technologies, such as new production systems and production-process rationalization technologies, for creating and applying recorded educational materials for skills training, which dramatically reduce the number of buildings when the recorded educational materials are applied.
This department conducts research into environmental preservation related to ships and marine structures in the following areas:
・Upgrading of simulation technologies that form the basis to realizing a rational environmental regulation system for the oceans and the atmosphere.
・Development and evaluation of various technologies to reduce emissions of CO22, NOxx, SOxx, PM and other pollutants from ships.
In addition, we will introduce new marine gas engine testing equipment to start leading research on future fuel conversions.
This department engages in risk assessments of the maritime field, including Formal Safety Assessment (FSA) for establishment of international regulations, risk assessment for newly developed systems and for improvement of marine traffic systems. This department also conducts researches for safe and secured carriage of hazardous cargos, including radioactive materials using advanced techniques such as risk/reliability analysis and hazardous material diffusion simulation.
We are involved with technological development and safety assessment for exploitation and production of offshore natural resources such as oil, gas and minerals. We have advanced model testing technology, numerical simulation technology, and data measurement and analysis technologies for experiments in actual sea.
Based on the above technologies, we are working on research and development to provide the technological solutions for ocean development in the frontier sea such as deep water and ice covered area.
NMRI is the only national public research institute in the maritime and oceanic fields and has established the following special organizations to achieve its mission of providing advanced technical solutions for various problems presented by society, administrations and industry, based on six core-technologies.
The Marine Accident Analysis Centre contributes to the investigation of the causes of marine accidents by analyzing information in a timely manner in close collaboration with the Japan Transportation Safety Board, the Maritime Bureau and other organizations in the Ministry of Land, Infrastructure, Transport and Tourism. For severe accidents, the center further contributes by drawing up preventive measures by reproducing accident situations using the Bridge Simulator for Navigational Risk Research, Actual Sea Model Basin and structural analysis tools.
The Center for International Cooperation strives to support the development and revision of international regulations and standards managed by the International Maritime Organization (IMO), the International Atomic Energy Agency (IAEA), the International Organization for Standardization (ISO) and other international organizations.