Shanghai Jiaotong University

Longfei Xiao

Tao Peng

Jianmin Yang

Yufeng Kou

Guocheng Zhao

Xinliang Tian

Mingyue Liu

Weijie Zhao

Haining Lu

Lei Tang

Xiaoxian Guo

Zhichao Fang

Haobo Li

Handi Wei

A special suspension-type tracked underwater robot adaptable to ultra-soft geological conditions comprises traveling mechanisms, wherein the traveling mechanisms are track-mud sled structures, the mud sled structures are fixedly arranged on two sides of each track, and the bottoms of the mud sled structures are higher than the bottoms of the tracks and are provided with arched plate heads; the arched plate heads are provided with plate water-jet devices capable of spraying water forwards; and in the traveling process of the traveling mechanisms, and the arched plate heads press water downwards to form a water film at the bottoms of the mud sled structures together with the water sprayed by the plate water-jet devices, so that the traveling mud resistance is reduced, and the robot can stably advance under ultra-soft geological conditions. The special suspension-type tracked underwater robot further comprises a propelling mechanism, an adjustment device, an operating module, and the like, can autonomously advance on a seabed, can suspend in water, can repair itself when broken, and can achieve detailed operations.

Special suspension-type tracked underwater robot adaptable to ultra-soft geological conditions

A porous-structure device includes a semi-submersible platform consisting of four columns, two pontoons, two horizontal supports and a deck. Fillets on middle portions of the columns have a square section, a radius of the fillets, close to the deck and the pontoons, of the columns is gradually decreased to 0, a porous device is disposed outside each column and is formed by combining and connecting four single components, and each single component is formed by combining and connecting a plurality of porous laminated plates and a plurality of connecting pieces. The parameters, such as the pore type, porosity, number of layers, interlayer spacing and installation height, of the porous laminated plates are set according to the wave characteristics in different sea areas.

Porous-structure device for suppressing wave run-up and design method thereof

A positioning device for arrangement of a basin false bottom in ocean engineering comprises a laser transmitting system, a rotating platform system, and a control and calculation system. The laser transmitting system comprises a laser transmitter used for providing laser beams. The rotating platform system comprises a two-degree-of-freedom rotating platform used for carrying the laser transmitter and making the laser beams have spatially arbitrary directivity. The control and calculation system is used for calculating, according to given coordinates, the angle by which the two-degree-of-freedom rotating platform needs to rotate, controlling rotation of the two-degree-of-freedom rotating platform, and making the laser beams transmitted by the laser transmitter accurately indicate the given coordinates at the basin false bottom. Compared with an existing manual positioning method for a false bottom, the positioning device is high in accuracy, easy to operate, and rapid, and saves labor and greatly improves the test efficiency.

Positioning device for arrangement of basin false bottom in ocean engineering

A piece of submarine mining equipment comprises an equipment body, a plurality of adaptive submarine mining collectors and respective mineral delivery pipes. The equipment body and the adaptive submarine mining collectors are connected through the mineral delivery pipes. The lengths, stretching out of the equipment body, of the mineral delivery pipes can be adjusted under control. The adaptive submarine mining collectors are provided with tracked traveling mechanisms and can autonomously travel under control. An underwater detector is used for detecting the submarine topography and mineral distribution in the vicinity of an operation area, and the traveling path of the submarine mining collectors and a mineral storage vehicle is reasonably planned according to detected information. The multiple adaptive submarine mining collectors simultaneously and independently work and are made light and small, thus reducing damage of mining operations to the submarine ecological environment. The equipment body can travel along flat submarine paths and avoid rough paths. Horizontal vortexes induced by the mining collectors can enhance the mining effect and improve the collecting power under unit power consumption so that fewer water pumps with smaller sizes can be configured, and the mining collectors have a smaller principle dimension, thereby greatly reducing energy consumption and being more environmentally friendly.

Cluster-type deep-sea submarine mining equipment based on vortex hydrodynamic characteristics

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Shanghai, China

Longfei Xiao