Jellyfish imitating underwater propelling device driven by embedded flexible joints

A technology of flexible joints and propulsion devices, which is applied to water-action propulsion components, ship propulsion, propulsion components, etc., and can solve problems such as limited motion control accuracy, low propulsion efficiency, and low system integration

Inactive Publication Date: 2015-03-25
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention aims to solve the problems that existing bionic jellyfish have complex mechanical structure, low system integration, low propulsion efficiency, limited motion control precision,

Method used

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  • Jellyfish imitating underwater propelling device driven by embedded flexible joints
  • Jellyfish imitating underwater propelling device driven by embedded flexible joints
  • Jellyfish imitating underwater propelling device driven by embedded flexible joints

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0014] Specific implementation mode 1: Combination Figure 1-Figure 6 Explain that the imitation jellyfish underwater propulsion device driven by the embedded flexible joint of this embodiment includes a power and control module 3, and it also includes an abdominal cavity end cover 1, a bionic flexible body 6, an abdominal cavity base 4, and N flexible piezoelectric fibers The composite material drives the joint 8, and the outer edge of the abdominal cavity base 4 is processed with N tentacles 4-3, where N is a positive integer and N≥8;

[0015] The outer contour of the bionic flexible body 6 is hemispherical, and N flexible piezoelectric fiber composite drive joints 8 are evenly embedded in the side wall surface of the bionic flexible body 6 along its circumferential direction. The abdominal cavity base 4 is embedded in the bionic flexible body 9 At the bottom, the open end of the abdominal cavity end cap 1 is closed on the open end of the abdominal cavity base 4 and the two are...

Example Embodiment

[0017] Specific implementation manner two: combination figure 1 It is explained that the bionic flexible body 6 of this embodiment is made of silica gel. With this setting, the chemical properties are stable and the mechanical strength is high, which meets the design requirements and actual needs. Others are the same as the first embodiment.

Example Embodiment

[0018] Specific implementation mode three: combination image 3 Note that the number of flexible piezoelectric fiber composite material-driven joints 8 in this embodiment is eight. This setting meets the design requirements and actual underwater propulsion needs. Others are the same as the first or second embodiment.

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Abstract

The invention relates to a jellyfish imitating underwater propelling device, in particular to a jellyfish imitating underwater propelling device driven by embedded flexible joints. The problems that an existing bionic machine jellyfish is complex in mechanical structure, low in system integration degree, low in propelling efficiency and limited in motion control precision, and the propelling behavior of a propellier body and the movement behavior of a real jellyfish in the natural world are quite different are solved. The jellyfish imitating underwater propelling device comprises a power and control module, and further comprises an enterocoelia end cover, a bionic flexible body, an enterocoelia base and N flexible piezoelectric fiber composite material drive joints. The N flexible piezoelectric fiber composite material drive joints are evenly distributed and embedded in the side wall of the bionic flexible body in the circumferential direction, the enterocoelia base is embedded into the bottom of the bionic flexible body, the open end of the enterocoelia end cover covers the open end of the enterocoelia base, the enterocoelia end cover and the enterocoelia base are in detachable sealing connection, and each tentacle of the enterocoelia base is provided with one corresponding flexible piezoelectric fiber composite material drive joint. The device is used for the field of ocean scientific investigation and the like.

Description

technical field [0001] The invention relates to a jellyfish-like underwater propulsion device, which belongs to the field of bionic underwater propulsion systems. Background technique [0002] At present, the global population and industry are developing at a high speed. Human beings have realized that the finite energy and some production materials that can be proven on land may be exhausted in the next period. How to solve this survival contradiction has become an international issue. major challenge. Under this background of social development, while people are seeking alternative resources on land, they are also actively marching to occupy the ocean, and ocean activities and related competitions are becoming increasingly fierce. [0003] Human activities such as marine production and scientific research basically rely on propulsion devices such as ships, submarines, and underwater detectors. These propulsion devices often use traditional propeller propulsion technology...

Claims

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Application Information

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IPC IPC(8): B63H1/30B63H1/38
Inventor 陈维山董帝渤王鼎汶石胜君侯珍秀
Owner HARBIN INST OF TECH
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