Bionic Robot Jellyfish Based on Multi-Link Mechanism

With the gradual deepening of people's exploration of the ocean, the development of the bionic underwater robot technology has also made progress. The previously studied underwater robot uses the propeller as the propulsion power, which has the disadvantages of large noise pollution, short endurance, unstable movement and high cost. At the same time, it also causes certain damage to the marine environment. In order to solve the above problems, the design of this paper is based on the multi-link to develop the underwater working robot with jellyfish as the prototype. The jellyfish uses the contraction and expansion of the bell body to provide the driving force. Its movement speed is slow, with high flexibility, simple structure and strong environmental adaptability. Using SolidWorks to draw the main parts of the machine jellyfish, analyze the static stress of the parts, assemble the 3D model to optimize the size, increase the displacement of the jellyfish in the range of motion, and improve the swimming speed.