Design Of Bionic Jellyfish Based On Tensegrity Overall Structure

With the rapid progress of social economy,the modernization level of continued ascension,rapid progress in science and technology,whether it is at this time in the work life,or research,in gradually improve,the advent of new technology and structure of more closely linked with nature,people and machine at the same time,people become more influenced by interactions with people of the machine energy saving and environmental protection,With the curiosity and exploration of the unknown environment,scientists begin to pay attention to underwater creatures and environment,and underwater robot has gradually become a hot topic.The main contents of this paper include the following parts:(1)Through the study,it is found that when the lumen expands,the water will fill the whole lumen;When the cavity contracts,the water spurts out under the force of the squeeze.The push of the water causes the jellyfish to move vertically along its body.(2)Explore the motion mechanism and action mechanism,and find the mapping relationship between the biological system of jellyfish skeleton and tensegrity structure.Based on the similarity principle,the tensegrity structure is combined with the movement mode of jellyfish to realize the propulsion function of the tensegrity extensible mechanism.(3)Based on the biological shape structure of the bionic jellyfish,the simulation analysis was carried out to extract the contour content,design the shape of the bionic jellyfish propeller,and make the experimental prototype through 3D printing technology.The tensioned extensible mechanism can form a driving force under the action of the driving equipment in combination with its own working state,so as to promote the mechanism to make the action of extension and contraction.In practical work,the stretchable mechanism can be maintained in an extended state,leading to the toughening of the mechanism,which has strong bearing capacity and stability.Jellyfish is no skeletal system,it is mollusks,so can only simulate the jellyfish feed mode,the mechanical structure with four outside dial bobbing chip device to make underwater propulsion simulation of his movement,by optimizing the structure,the underwater biomimetic robots need only half a movement in motion can be underwater moving,will need to use external forces when open motion pair,Through the characteristics of the tensioned extensible structure,the tie rod will be pulled to the maximum,and after the external force is removed,the free extensible movement will be carried out to realize the underwater push.The purpose of doing this is not only to save energy,but also to protect the environment and meet the green design standards.In terms of design,because of the bionic jellyfish propeller from bottom to top sports movement way,in the water movement,jellyfish can withstand a variety of forces,for example the gravity,driving force,resistance,and accelerate the reaction,etc.,which is the greatest influence to its resistance,in the design of appearance,the bionic jellyfish propeller upper part designed tapered structure,The goal is to reduce drag during movement so that the bionic jellyfish thrusters have more work to do.This paper studied the characteristics of the tensioned deployable structure,simulated the propulsion movement of jellyfish,used the tensioned deployable mechanism with the help of four mechanical structures,and summarized the bionic jellyfish propeller through the historical origin and development status of bionic design.Through the design techniques and design procedures of bionic design,The shape design of the bionic jellyfish propeller was completed and the experimental analysis was carried out.