Biomimetic machine shark

Abstract

The invention provides a biomimetic machine shark, and relates to the field of biomimetic underwater vehicles. The biomimetic machine shark comprises a shark head, a pectoral fin system, a dorsal fin,a shark body framework, a device cabin and a shark tail driving system; the shark head is connected with the shark body framework through a head steering engine, and the head steering engine is fixedto the front part of the shark body framework and can control the shark head to swing left and right; the pectoral fin system realizes floating upward and diving downward of the machine shark duringmoving by changing the angles of pectoral fins; a dorsal fin is fixed to the shark body framework, the device cabin is placed in the shark body framework, and the shark body framework is provided withthreaded holes to connect steering engines and other extending devices; a singlechip microcomputer, batteries and the like are placed in the device cabin; and the shark tail driving system realizes the condition that a main steering engine drives a whole tail part to swing flexibly through traction of a linkage piece, and a caudal fin steering engine is arranged at a last caudal joint to controla caudal fin to swing individually. According to the biomimetic machine shark, the structure is simple, the biomimetic effect is vivid, the expansibility is high, and three-dimensional motion under water can be realized.

Description

technical field [0001] The invention relates to the field of bionic underwater vehicles, in particular to a bionic robot shark. Background technique [0002] The simulation fish can more realistically simulate the swimming principle of fish, make the underwater robot movement more in line with the principles of fluid mechanics, and have better acceleration and steering capabilities. They can be used to detect the ocean, find and detect polluted places in the sea, It can also be used to explore terrain; sharks are excellent predators in the ocean, and their overall comprehensive performance has evolved to excellence after long-term natural selection and survival of the fittest. For example, the unique drag-reducing structure of shark skin has attracted many people to study. Sharks are cartilaginous fish. When swimming, they mainly rely on the body to cooperate with the tail fin to move forward like a scull. The stability and control mainly use the dorsal and pectoral fins. T...

AI Technical Summary

Problems solved by technology

This method is basically close to the body shape of fish when swimming, but the swimming is more rigid when there are fewer joints, and the control is more complicated as the number of joints increases, and the power consumption is higher.

These factors make it difficult for bionic robot fish to achieve flexible propulsion, and the propulsion effect is difficult to match that of fish

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