Embedded magnetic rheological fluid intelligent material sandwich structure

A technology of magnetorheological fluid and interlayer structure, applied in the direction of magnetic liquid, etc., can solve the problems that the external magnetic field and the structure are not integrated, and the intelligent structure cannot be used in practice, and achieve the advantages of short magnetic circuit, small volume and low magnetic potential Effect

Inactive Publication Date: 2008-10-08
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the external magnetic field is not integrated with the structure, so that this smart structure cannot be used in practice

Method used

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  • Embedded magnetic rheological fluid intelligent material sandwich structure
  • Embedded magnetic rheological fluid intelligent material sandwich structure

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Embodiment Construction

[0009] figure 1 It is the schematic diagram of the sandwich structure of magnetorheological fluid smart materials, figure 2 is a schematic diagram of the sandwich beam structure. Describe concrete structure and implementation steps of the present invention according to accompanying drawing:

[0010] Specific structure:

[0011] The specific structure of the present invention is that the excitation coil 2 is embedded in the "back" shaped coil groove 7 inside the upper and lower interlayer 1, and the magnetorheological fluid 4 is injected into the upper and lower interlayer beam 1 through the liquid injection holes 5 at both ends of the upper interlayer beam. in the inner cavity. The upper and lower sandwich beams are connected by screws through the screw holes 6 at both ends, and the positive and negative lead wires of the excitation coil 2 are drawn out from the end of the sandwich beam along the wiring slot 8 on the side of the "back" shaped coil slot of the sandwich beam...

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Abstract

This invention relates to a sandwich structure of an intelligent material of magnetic flow change solution including magnetic flow changed solution, an excitation coil generating magnetid field and up and down sandwich beams, in which, the magnetic flow changed solution and the excitation coil are inserted in the matrix of the up and down sandwich beams, and the solution, the excitation coil and the matrix are combined to one unit, which can alter the rigid and damp of the structure by altering input current.

Description

1. Technical field [0001] The embedded magnetorheological fluid smart material interlayer structure of the invention belongs to the smart material structure. 2. Background technology [0002] The smart material structure can change its own stiffness and damping characteristics with the help of external energy to adapt to changes in the external environment and ensure that the structural performance is stable in a better state. At the same time, the intelligent structure can also actively change its performance according to the needs, and actively or semi-actively control the dynamic characteristics, dynamic response and dynamic stability of the structure. Therefore, intelligent material structures have received extensive attention in the fields of aerospace, machinery, civil engineering and other engineering technologies. [0003] Magnetorheological fluid is a smart material with controllable and variable rheological properties. Under the action of a magnetic field, it can ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F1/44
Inventor 夏品奇江绛
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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