A manta ray-like underwater propulsion device driven by wave energy
A propulsion device and wave energy technology, applied in ship propulsion, propulsion components, propulsion-based emission reduction, etc., can solve problems such as limiting wave energy conversion efficiency, and achieve improved wave energy conversion efficiency, easy replacement, and low production cost. Effect
Active Publication Date: 2021-03-30
SUN YAT SEN UNIV
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Problems solved by technology
Theoretically, the more pairs of wings, the greater the propulsive force of the lower gliding mechanism, but there is an influence of mutual flow between the wings, which cannot be ignored. The more pairs of wings, the greater the mutual flow between the wings The more serious the impact, this greatly limits the conversion efficiency of wave energy, making it difficult for the application of wave glider to break through the limitation of the original design wave conversion efficiency
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[0029] In this embodiment, a wave energy-driven imitation manta ray underwater propulsion device, such as figure 1 As shown, it and the floating body 2 on the surface of the water are respectively arranged at the two ends of the flexible umbilical cable 1 to form a wave glider. A flexible pectoral fin 32 is provided, and the flexible pectoral fin 32 is a structure imitating the pectoral fin of a manta ray.
[0030] In this embodiment, the flexible pectoral fin 32 is made of pure elastic material, and the internal mass is evenly distributed.
[0031] such as advancing the schematic figure 2 As shown, when the surface floating body 2 floats up with the waves, the flexible umbilical cable 1 pulls the underwater propulsion device 3 to rise, and the flexible pectoral fins 32 swing downward under the action of potential energy, converting the upward motion into forward motion; When the waves sink, the underwater propulsion device 3 dives under the action of its own gravity, and t...
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The invention relates to a wave energy driven manta-ray-imitated underwater propulsion device. The wave energy driven manta-ray-imitated underwater propulsion device and a water surface floating bodyare separately arranged at two ends of a flexible umbilical cable to form a wave glider, the underwater propulsion device comprises a fixing rack which is connected with the flexible umbilical cable,and flexible pectoral fins are separately arranged on two sides of the fixing rack, and have manta-ray-imitated pectoral fin structures. When the water surface floating body floats up along with wave,the flexible umbilical cable drags the underwater propulsion device to rise, the flexible pectoral fins downwards swing under the effect of potential energy, and thus, rising movement is transformedinto forward movement; and when the water surface floating body sinks along with wave, the underwater propulsion device dives under the effect of gravity of the underwater propulsion device, the flexible pectoral fins swing upwards under the effect of potential energy, and thus, the descending movement is transformed into forward movement. By interaction of the flexible pectoral fins and water flow, the underwater propulsion device is driven to move forwards. Compared with a lower-layer gliding mechanism of an existing wave glider, the wave energy driven manta-ray-imitated underwater propulsion device has the advantages that mutual encircling flow influences between wing plates can be avoided, and thus, the wave energy transformation efficiency is improved further.
Description
technical field [0001] The present invention relates to the technical field of wave energy utilization and bionic propulsion, and more specifically, to a wave energy-driven imitation manta ray underwater propulsion device. Background technique [0002] Marine environmental observation technology is of great significance to protect and develop marine environment and resources, safeguard national marine rights and interests, and enhance national marine military and scientific and technological strength. At present, the equipment used in underwater ocean observation mainly includes buoys, submersible buoys, seabed bases, research ships, and propeller-propelled underwater robots and underwater gliders. With the deepening of human activities in the deep sea and the open sea, new requirements are constantly being put forward for marine environment observation technology. [0003] Unmanned surface robots can be used to perform tasks that are dangerous and not suitable for manned s...
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IPC IPC(8): B63H19/04
CPCB63H19/04Y02T70/5236
Inventor 龚也君黄梓维詹杰民蔡文豪胡文清潘小殷罗莹莹
Owner SUN YAT SEN UNIV