日本財団図書館（電子図書館）　平成１４年度実施計画調書（仮訳）

37. Hokkaido University Faculty of Fisheries Department of Marine Production System Science

Research Project	Period		Researcher(s)	Overview
Research Project	Plan	2002	Researcher(s)	Overview
1. Research on development and application of mathematical model of separate component type for hydrodynamic forces of maneuvering motion	10	8	K. Karasuno K. Maekawa	Creates models of applicable hydrodynamic forces to predict maneuvering motion at low advance speed, and estimates hydrodynamic coefficients in motion equations to develop experimental and analytical tools.
2. Research on simulation of maneuvering of fishing vessels in four modes of motion and their performance	5	2	K. Karasuno K. Maekawa	Develops estimation method of maneuvering motion of fishing vessels, which remarkably changes their conditions according to loading as well as large heeling by steering in fishing operation.
3. Research on transient characteristics of hydrodynamic forces in maneuvering	3	1	K. Maekawa K. Karasuno	Estimates hydrodynamic forces in steady steering motion using unsteady transient forces measured by simple towing test of the model to reduce experimental work.
4. Research on hydrodynamic forces of floating structure of barge type	10	5	K. Karasuno K. Maekawa	Conducts research on steady and unsteady hydrodynamic forces acting on barges as a fundamental form of floating structure.

38. Kanazawa Institute of Technology Division of Mechanical and Mechanical Systems Engineering Vehicle Systems

Research Project	Period		Researcher(s)	Overview
Research Project	Plan	2002	Researcher(s)	Overview
1. Research on maneuvering motion of sailing yacht	10	8	Y. Masuyama	Studies the optimum steering method by comparing simulation results with the onboard measurement of steering motions during tacking and wearing of an offshore sailing boat 10 m in length.
2. Research on maneuvering motion of the Restored Higaki-round cruise ship "Naniwa Maru"	5	4	Y. Masuyama T. Fukasawa	Regarding the sailing performance of "Naniwa Maru,"which is now the restored Higaki-kaisen^* built in Osaka City, the wearing motion has been investigated by measurement on an actual ship as well as by numerical simulation. Investigates the possibility of tacking maneuverability of a typical large Japanese sailing ship in the Edo era by computer simulation using hydrodynamic forces acting on the Ya-sail as jib, which is supposed to make tacking possible. ^*:Higaki-kaisen is a typical Japanese sailing trader from the 18^th to mid-19^th century, which has a single mast with a huge square sail.
3. Research on performance of solar boats with hydrofoil	12	10	Y. Masuyama N. Ohishi	Conducts research on the application of solar cells as the clean energy source of ships as zero exhaust material and heat is going on. This research will contribute to the development of new small vehicles with energy-saving type hydrofoils.
4. Research on fatigue design method of ship structure considering phase lag among loads acting on structure	3	2	T. Fukasawa	Develops a practical design method for ship structure by applying simple superposition of RAO for various loads acting on ship structure.
5. Research on load conditions to be used for fatigue crack propagation analysis of ship structure	5	2	T. Fukasawa	Fatigue propagation analysis should be performed under load conditions corresponding to actual sea conditions at the fatigue strength design of ships. Conducts research to study the load determination to be used for this purpose.
6. Development of unmanned solar boats by GPS navigation	10	5	T. Fukasawa	Develops unmanned solar boats with GPS navigation system to survey dangerous sea areas.
7. Development of floating structure as the base of off-shore wind power plants	5	1	T. Furukawa	Develops a stable floating structure as the base of off-shore wind power plants to be used in severe wind and wave conditions. Clarifies the form of stable structure required in steady wind and wave conditions this year.
8. Development of three-dimensional analysis of high temperature welding cracks	2	1	M. Shibahara	Develops a three dimensional analysis method instead of the conventional two dimensional method used for a boundary element, considering the difficulties in simulating quantitatively crack generation and propagation of high temperature welding.
9. Research on generation mechanism of pear type cracks	5	1	M. Shibahara	Studies the generation mechanism of pear type cracks using high temperature crack analysis by macro-view of the boundary element when welding the Ni group alloy due to solidification.
10. Quantitative analysis of liquefied crack of HAZ boundary particles	5	1	M. Shibahara	Liquefied crack of HAZ boundary particles may occur during welding of the Ni group alloy as Inconel. Analyzes these high temperature cracks by modeling crack propagation in arbitrary directions.
11. Development of optimum test method for sensitivity evaluation of high temperature cracks	5	1	M. Shibahara	Although several methods have been proposed for sensitivity evaluation of high temperature crack generation, some methods are not considered adequate. This research, then, develops an optimum test method for sensitivity evaluation of high temperature cracks, classifying the conventional test method from a mechanical point of view.
12. Deformation analysis of plate welding considering root gap and temporary welding	10	1	M. Shibahara	Root gap occurred by plate welding greatly affects deformation when welding. This research investigates in detail the deformation of plate welding considering root gap and temporary welding.
13. Effect of melting form on angular deformation at plate welding	2	1	M. Shibahara	Deformation at plate welding remarkably depends on melting form during laser or electronic beam welding in cases of deep melting by one pass. Studies the effect of melting form on angular deformation at plate welding by thermo-elastic and plastic analysis as well as elastic analysis of one's own strain to clarify the deformation mechanism.
14. Research project on long-term persistence and damage allowance of renovational compound material for ships	3	2	Y. Miyano I. Kinpara M. Nakata K. Yamaguchi	To promote efficient use of carbon-fiber compound material for ship structures, performs accelerated longterm persistence test and damage allowance test for RTM (Resin Transfer Molding) of multi-axis stitch cloth and vinyl ester resin or flat carbon-fiber cloth to obtain fundamental data for structural design.
15. Fundamental research on efficient method of design and molding of thin light structure by flat carbon-fiber cloth	2	1	I. Kinpara Y. Miyano M. Nakata K. Yamaguchi	Flat carbon-fiber cloth and VARTM (Vacuum Assisted Resin Transfer Molding) are combined to obtain efficient molding of ultra-light thin structures. This research constructs a prototype of light structure molding by developing a simple molding method based on the design of thin panels of arbitrary form with desired strength and rigidity, offering a database of element materials and a standardized design method.
16. Fundamental study on reinforcing effect of damaged members by compound material patch	3	2	K. Yamaguchi I. Kinpara K. Kawai	Clarifies the reinforcing effect of patched compound material at damaged or open parts of steel or aluminum structure to repress fatigue crack development by observing damage progress by infrared rays and the simulation method considering crack and separation progress. Also prepares guidance for reinforcement design and fundamental data.
17. Characteristics of interference type optical fiber and application to structural health monitoring	3	2	I. Kinpara K. Yamaguchi H. Yamamoto	Investigates the possibility of strain monitoring during hardening and long-term health monitoring by buried sensors in compound structure by clarifying the characteristics of interference type optical fiber sensors during strain measurement in multi-stress fields, which is useful under a wide range of temperatures and in the long-term.
18. Evaluation of damage progress by stress image method of infrared rays	3	1	I. Kinpara K. Yamaguchi K. Kawai H. Yamamoto	Observes damage progress by fatigue of compound material layer plate with circular holes or impulse damage parts by infrared rays, and clarifies the damage progress process phenomenally by image change. Constructs an equivalent damage model to estimate residual compressive strength reduction by comparing ultra-sonic damage detection and FEM simulation.