著者

高川 真一 難波 直愛 森鼻 英征 手塚 久男 前田 逸郎 重国 清 石黒 慎二

出版者

公益社団法人 日本船舶海洋工学会

雑誌

関西造船協会誌 216 (ISSN:03899101)

巻号頁・発行日

pp.201-207, 1991-09-25 (Released:2018-04-01)

---

Deep Submergence Research Vehicle "SHINKAI6500" is the latest manned research vehicle which can dive to the deepest existing in the world. The maneuverability of a submersible vehicle is highly dependent on its cofiguration. During the development of "SHINKAl6500" we have assumed great importance to its decending and ascending capability. "SHINKAI6500"'s configuration has been improved in various respects reflecting "SHINKAI2000"'s operation results, finally determined based on the results of twice wind tunnel tests and a tank test. In sea trials it is confirmed that hydrodynamics resistance of "SHINKAI6500" is remarkably reduced compared to that of "SHINKAI2000". This paper describes the outline of these model tests, sea trials and the process of the development of its streamlined cofigulation.

著者

遠藤 倫正 横田 公男 森鼻 英征 渕上 勝人 広瀬 衞 下山 仁一

出版者

The Japan Society of Naval Architects and Ocean Engineers

雑誌

日本造船学会論文集 (ISSN:05148499)

巻号頁・発行日

vol.1980, no.148, pp.107-120, 1980 (Released:2009-09-04)

参考文献数

31

被引用文献数

1 1

---

The pressure hull of a deep submersible is a unique structure which requires sophisticated technology in its design and fabrication aspects. This paper presents the design and fabrication practices, which the authors have adopted to the pressure hull of the 2, 000m deep submergence research vehicle, “SHINKAI 2000”, ordered by Japan Marine Science and Technology Center. She is an up-to-date research submersible, having the greatest depth capability in Japan.She is under construction in Kobe Shipyard of MHI and scheduled to be completed in Oct. 1981. Her pressure hull has been tested successfully under external pressure of 1. 1 times as much as maximum operating depth. To complete the hull, the results and experiences from the R & D, which the authors have conducted extensively since 1969, have been effectively applied.This paper also discusses the future subjects to the deeper submersible, such as 6, 000m and deeper classes.

著者

金井 一彦 森鼻 英征 山崎 敏樹 寺田 邦夫

出版者

The Japan Society of Naval Architects and Ocean Engineers

雑誌

日本造船学会論文集 (ISSN:05148499)

巻号頁・発行日

vol.1972, no.132, pp.269-279, 1972 (Released:2010-01-22)

参考文献数

14

被引用文献数

1

---

In order to obtain the collapse strength data on the spherical shells suitable to the pressure capsule of DSSV, collapsing tests were conducted using spherical shell models by means of MHI 1, 200 kg/cm2 hydrostatic tank. These models were made from several kinds of materials including ultra-high yield strength steels such as 18% Ni maraging steel, 10% Ni dual-strengthened steels etc., and machined into near-perfect spherical shape or spheres with initial imperfection of various, thicknesses.From these experiments the following conclusions are obtained : (1) Collapse pressure of relatively thick shells (ha/R10≥0.03) agrees to the theoretical inelastic buckling pressure by Gerard et al.(2) The effect of initial imperfections are evaluated by local radius in case of relatively thick shells. But for thinner shells, this method is not sufficient and nonlinear elasto-plastic analysis will be required.(3) Present results will not always agree with Krenzke's data, especially in thinner shells with flat spot.(4) Fracture appearance of collapsed shells are closely related to the fracture toughness of materials.

著者

高川 真一 森鼻 英征 下田 廣一郎 山内 裕 神野藤 保夫 井上 和也

出版者

公益社団法人 日本船舶海洋工学会

雑誌

関西造船協会誌 214 (ISSN:03899101)

巻号頁・発行日

pp.177-185, 1990-09-25 (Released:2018-04-01)

---

The pressure hull of deep submergence research vehicle is an utmost important structure that secures the safety of crew members against the hydrostatic pressure in deep sea, and should be as compact in size and light in weight as possible in order to obtain easy operation and high maneuverability of the vehicle. In design and fabrication of the pressure hull, the application of high strength material which has reliable characteristic for practical use, of design method suitable for such material and fabrication procedure which satisfies the quality requirement of the highest degree have been encouraged. In the develoment of the 6500m deep submergence research vehicle "SHINKAI 6500", which is the latest submergence research vehicle following the 2000m deep submergence research vehicle "SHINKAI 2000" in Japan, the investigation in various fields was carried out in order to adopt titanium alloy, which has superior strength/weight ratio, for the pressure hull. The production procedure of heavy thickness and large size plate and forging material, and the fabrication procedure of the pressure hull were investigated by the fabrication of the full scale model made of titanium alloy and by material tests with specimens cut from the model. The collapse behaviour was examined by collapse tests using scale models of titanium alloy and by nonlinear behaviour analysis with FEM procedure. Finally, in order to confirm both the fabrication procedure and design method in total, the cyclic loading test and collapse test using scale model fabricated according to the procedure equivalent to that for the actual pressure hull. This paper presents the design and fabrication of the pressure hull of "SHINKAI 6500".

著者

金井 一彦 森鼻 英征 山崎 敏樹 寺田 邦夫

出版者

日本造船学会

雑誌

日本造船学会論文集 (ISSN:05148499)

巻号頁・発行日

no.132, pp.269-279, 1972

被引用文献数

1

---

In order to obtain the collapse strength data on the spherical shells suitable to the pressure capsule of DSSV, collapsing tests were conducted using spherical shell models by means of MHI 1,200kg/cm^2 hydrostatic tank. These models were made from several kinds of materials including ultra-high yield strength steels such as 18% Ni maraging steel, 10% Ni dual-strengthened steels etc., and machined into near-perfect spherical shape or spheres with initial imperfection of various thicknesses. From these experiments the following conclusions are obtained : (1) Collapse pressure of relatively thick shells (h_a/R_<10>≧0.03) agrees to the theoretical inelastic buckling pressure by Gerard et al. (2) The effect of initial imperfections are evaluated by local radius in case of relatively thick shells. But for thinner shells, this method is not sufficient and nonlinear elasto-plastic analysis will be required. (3) Present results will not always agree with Krenzke's data, especially in thinner shells with flat spot. (4) Fracture appearance of collapsed shells are closely related to the fracture toughness of materials.

著者

高川 真一 森鼻 英征 下田 廣一郎 山内 裕 神野藤 保夫 井上 和也

出版者

公益社団法人日本船舶海洋工学会

雑誌

関西造船協会誌 (ISSN:03899101)

巻号頁・発行日

no.214, pp.177-185, 1990-09-25

被引用文献数

1

---

The pressure hull of deep submergence research vehicle is an utmost important structure that secures the safety of crew members against the hydrostatic pressure in deep sea, and should be as compact in size and light in weight as possible in order to obtain easy operation and high maneuverability of the vehicle. In design and fabrication of the pressure hull, the application of high strength material which has reliable characteristic for practical use, of design method suitable for such material and fabrication procedure which satisfies the quality requirement of the highest degree have been encouraged. In the develoment of the 6500m deep submergence research vehicle "SHINKAI 6500", which is the latest submergence research vehicle following the 2000m deep submergence research vehicle "SHINKAI 2000" in Japan, the investigation in various fields was carried out in order to adopt titanium alloy, which has superior strength/weight ratio, for the pressure hull. The production procedure of heavy thickness and large size plate and forging material, and the fabrication procedure of the pressure hull were investigated by the fabrication of the full scale model made of titanium alloy and by material tests with specimens cut from the model. The collapse behaviour was examined by collapse tests using scale models of titanium alloy and by nonlinear behaviour analysis with FEM procedure. Finally, in order to confirm both the fabrication procedure and design method in total, the cyclic loading test and collapse test using scale model fabricated according to the procedure equivalent to that for the actual pressure hull. This paper presents the design and fabrication of the pressure hull of "SHINKAI 6500".