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Novel bionic skeletal muscle based on shape memory alloy driving

A technology of memory alloy wire and skeletal muscle, applied in the field of bionic skeletal muscle

Active Publication Date: 2012-07-18
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, so far, there is no real SMA-driven bionic skeletal muscle that can adapt to variable large load forces.

Method used

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  • Novel bionic skeletal muscle based on shape memory alloy driving
  • Novel bionic skeletal muscle based on shape memory alloy driving
  • Novel bionic skeletal muscle based on shape memory alloy driving

Examples

Experimental program
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Embodiment Construction

[0019] Such as figure 1 As shown, the bionic skeletal muscle of the present invention includes 24 shape memory alloy wires 3, a first heating circuit board 2, a second heating circuit board 6, two heat dissipation insulating plates 4 and 5, a flexible insulating wire 1 and an energy storage spring 7 . The heat dissipation insulating plates 4, 5 are between the first heating circuit board 2 and the second heating circuit board 6, and the two ends of the shape memory alloy wire 3 are respectively fixed on the first heating circuit board 2 and the second heating circuit board 6, and surround The heat dissipation insulating plates 4 and 5 form the bionic skeletal muscle in a spindle shape. The flexible insulating wire 1 passes longitudinally through the bionic skeletal muscle of the present invention, wherein it passes through the central holes of the two heat dissipation insulating plates 4 and 5 in turn. The flexible insulating wire 1 is fixed on the first heating circuit boar...

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Abstract

The invention discloses a novel bionic skeletal muscle driven by a shape memory alloy (SMA) wire. The novel bionic skeletal muscle comprises a plurality of SMA wires, a first heating circuit board, a second heating circuit board, at least one heat dissipation insulating board, a flexible insulating wire, and an energy storage spring. The heat dissipation insulating board is arranged between the first and second heating circuit boards. The two ends of the plurality of SMA wires are fixed to the first and second heating circuit boards, respectively, and the plurality of SMA wires are surrounded the heat dissipation insulating board to form a spindle-shaped bionic skeletal muscle. The flexible insulating wire longitudinally penetrates through the bionic skeletal muscle and is fixed to the first and second heating circuit boards. External load acts on one end of the energy storage spring, and the other end of the energy storage spring is connected with the flexible insulating wire. The invention connects the multiple SMA wires to constitute spindle-shaped bionic skeletal muscle, and realizes adaptable and changeable large load.

Description

technical field [0001] The invention relates to a bionic skeletal muscle, in particular to a bionic skeletal muscle driven by a shape memory alloy. Background technique [0002] Shape memory alloy (SMA), as a smart material, is a new type of driving element. At present, SMA is widely used in aviation, medical and other fields, and many applications have been industrialized. However, SMA is relatively backward in the development of bionic muscle actuation. SMA and human muscles, especially skeletal muscles, have many similar characteristics, such as high power density, large output force, flexibility, unidirectional contraction, self-sensing and other functions. In addition, SMA is easy to drive, and current heating can be realized, so it is possible to realize the design of integrated bionic skeletal muscle integrating "mechanism-sensing-actuation". [0003] At this stage, there are relatively many studies on the use of SMA as artificial muscles to drive bionic prostheses...

Claims

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Application Information

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IPC IPC(8): A61F2/08
Inventor 殷跃红张健军
Owner SHANGHAI JIAO TONG UNIV
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