Bionics machine acaleph driven by shape-memory alloy wire

Abstract

The invention discloses a biomimetic mechanical jellyfish that is driven by shape memory alloy wires, relates to a biomimetic mechanical jellyfish and aims at solving the problems that the existing biomimetic mechanical jellyfishes only simulate jellyfish actions, do not cover devices such as a drive device and the like, and have complex structure and the biomimetic effect that is totally different with the action principle of real jellyfishes. The biomimetic mechanical jellyfish has following structure: an action unit (10) consists of the shape memory alloy wires (12), an elastic body (13), a coating skin (15) and a substrate (16), the substrate (16) and the shape memory alloy wires (12) are fixedly arranged on the elastic body (13), the action unit (10) is coated inside an umbrella-likesoft layer (11), the coating skin (15) covers outside the shape memory alloy wires (12), the substrate (16) and a sealing cover (3) are fixedly connected with a supporting body (2), a power source (7), a control device (5), a communication device (6) and a sinking and floating control device (9) are fixedly arranged on the supporting body (2), and the power source (7) provides electricity respectively to the control device (5), the communication device (6) and the shape memory alloy wires (12). The biomimetic mechanical jellyfish has simple structure, lightness, low production cost, large action range and good biomimetic effect.

Description

technical field [0001] The invention relates to a bionic robot jellyfish. Background technique [0002] Underwater propulsion is a relatively energy-intensive mode of transport, since the thrusters must overcome high water resistance. The current main mode of surface transportation is still propeller propulsion, but this propulsion mode has its obvious disadvantages. First of all, the propulsion efficiency is not high, and the propeller propulsion also produces useless torque while generating thrust; secondly, the cavitation phenomenon that occurs due to the pressure difference between the blade back and the blade surface when the propeller rotates at a high degree causes the hull and blades to vibrate and erode , making a lot of noise. For this reason, people invented the water jet propulsion device, and obtained greater development in practical application. A common water jet propulsion device generates thrust through a propulsion pump, and uses the reaction force of th...

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Problems solved by technology

[0012] The purpose of the present invention is to provide a bionic jellyfish driven by a shape memory alloy wire, which can solve the problem that the existing bionic jellyfish only simulates the action of the jellyfish, does not involve devices such as drives, and has a complex structure and the mechanical bionic jellyfish. The problem that the bionic effect of the jellyfish is completely different from the action principle of the actual jellyfish

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