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Quasi-plastic cuttlefish-imitating pulse jet propeller

A pulse jet, squid-like technology, applied in ship propulsion, propulsion parts, ship parts, etc., can solve the problems of poor bionic effect, low propulsion speed, low thrust, etc., achieve fast propulsion speed, delay turbulence, and reduce resistance. Effect

Inactive Publication Date: 2011-04-13
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] The purpose of the present invention is to solve the problems of low thrust, low propulsion speed, high noise and poor bionic effect in the existing pulse jet, and to provide a quasi-flexible squid-like pulse jet thruster

Method used

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  • Quasi-plastic cuttlefish-imitating pulse jet propeller
  • Quasi-plastic cuttlefish-imitating pulse jet propeller
  • Quasi-plastic cuttlefish-imitating pulse jet propeller

Examples

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specific Embodiment approach 1

[0020] Specific implementation mode one: combine Figure 7 ~ Figure 10 Describe this embodiment, a kind of quasi-flexible imitation squid pulse jet thruster of this embodiment comprises silica gel funnel 2, imitation squid mantle 3 and cabin body 4, and described imitation squid mantle 3 is made of many shape memory alloy wires 5, The silicone flexible body 6 and a plurality of ribs 7 are composed, the large-diameter end of the silicone funnel 2 is connected to the inner wall of the open end of the imitation squid mantle 3, and the cabin body 4 is arranged in the imitation squid mantle 3, so that A plurality of ribs 7 are evenly embedded in the imitation squid mantle 3 along the circumferential direction of the imitation squid mantle 3, and each rib 7 is arranged along the generatrix direction of the imitation squid mantle 3, and the adjacent two ribs 7 They are connected by a shape memory alloy wire 5, and the shape memory alloy wire 5 is embedded in the imitation squid mantl...

specific Embodiment approach 2

[0023] Specific implementation mode two: combination Figure 9 To describe this embodiment, the shape memory alloy wires 5 between two adjacent ribs 7 of this embodiment are arranged in a V shape. In this way, the oblique wiring method with a certain angle to the ribs 7 increases the length of the SMA wires, thereby increasing the relative moving distance between the two ribs 7 . Both ends of the shape memory alloy wires 5 arranged in a V shape are fixed on a rib 7 , and the midpoint of the shape memory alloy wires 5 arranged in a V shape is fixed on another rib 7 . Other compositions and connections are the same as in the first embodiment.

specific Embodiment approach 3

[0024] Specific implementation mode three: combination Figure 7 with Figure 8 To illustrate this embodiment, the pulse thruster of this embodiment also has an underwater vector thrust nozzle 1 driven by a shape memory alloy, and the underwater vector thrust nozzle 1 driven by a shape memory alloy is fixed on the small diameter end of the silicone funnel 2 superior. With such arrangement, vector propulsion is realized. The underwater vector thrust nozzle 1 driven by shape memory alloy adopts the vector thrust nozzle disclosed in the patent No. ZL200610010360.5. Other compositions and connections are the same as those in Embodiment 1 or Embodiment 2.

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Abstract

The invention discloses a quasi-plastic cuttlefish-imitating pulse jet propeller and relates to a cuttlefish-imitating pulse jet propeller. The cuttlefish-imitating pulse jet propeller solves the problems that the existing pulse jet propeller has little thrust, low propelling speed, large noise and poor bionic effect. The large-diameter end of the silica gel hopper (2) is connected with the innerwall of an opened end of a cuttlefish-imitating outer sleeve film (3); the bin body (4) is arranged in the cuttlefish-imitating outer sleeve film (3); a plurality of bars (7) are respectively embedded in the cuttlefish-imitating outer sleeve film (3) along the peripheral direction of the cuttlefish-imitating outer sleeve film (3); all the bars (7) are respectively arranged along the bus directionof the cuttlefish-imitating outer sleeve film (3); and two adjacent bars (7) are connected by a shape memory alloy wire (5) or the front ends and the rear ends of a plurality of bars (7) are connected by two shape memory alloy wires (5). The quasi-plastic cuttlefish-imitating pulse jet propeller has little resistance at the outer wall when in propelling, realizes deeper submergence, has simple structure, realizes silent propelling and has fast propelling speed.

Description

technical field [0001] The invention relates to a squid-like pulse jet propeller. Background technique [0002] Most small underwater robots now use propellers driven by electric motors for propulsion. Propeller propulsion has the advantages of small size and easy installation, but it also has disadvantages such as loud noise, cavitation, easy damage to underwater organisms, damage to the underwater environment, and easy entanglement by seaweed. Therefore, propeller propulsion is not suitable for occasions that require quietness, concealment and environmental protection, such as scientific observation, military investigation, and deep-sea exploration. [0003] Researchers have studied the propulsion methods of marine organisms to find viable alternatives. The propulsion methods of aquatic organisms can be divided into three types: wave propulsion (such as fish), pulse jet propulsion (such as squid) and flagella / cilia propulsion (such as paramecium). The first two propulsi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B63H11/103
Inventor 王振龙李健王扬威杭观荣吴清华杜威
Owner HARBIN INST OF TECH
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