Structural health monitoring system and method for magnetic fiber composite material

A health monitoring system and magnetic fiber technology, which is applied in the direction of testing material strength, material magnetic variables, and electromagnetic measuring devices using one-time impact force, to achieve the effects of ensuring safe use, strong real-time performance, and reducing maintenance costs

Pending Publication Date: 2022-02-18
ZHEJIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although composite materials are widely used, safety in critical areas still faces great challenges

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  • Structural health monitoring system and method for magnetic fiber composite material

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Embodiment Construction

[0030] The present invention will be further elaborated below in conjunction with specific embodiments and accompanying drawings. The embodiments described below are only used to illustrate the method, and are not used in the protection scope of the present invention.

[0031] Such as figure 1 As shown, the present invention provides a structural health monitoring system for magnetic fiber composite materials, the structural health monitoring system mainly includes a magnetic fiber sensor 11, a component to be monitored 12, a signal excitation module 2, a signal acquisition module 3 and a signal processing device 7. Wherein, the magnetic fiber sensor 11 is fixed on the object to be monitored 12 , and the two together constitute the magnetic fiber composite material 1 . The magnetic fiber sensor 11 includes one or more of a magnetic fiber strain sensor, a magnetic fiber curvature sensor, and a magnetic fiber impact monitoring sensor. The structures of the above three types of...

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Abstract

The invention discloses a structure health monitoring system and method for a magnetic fiber composite material. The structure health monitoring system comprises a magnetic fiber sensor, a to-be-monitored part, a signal excitation module, a signal acquisition module and signal processing equipment, wherein the magnetic fiber sensor is fixed on the to-be-monitored part, and the magnetic fiber sensor and the to-be-monitored part jointly form a magnetic fiber composite material. The magnetic fiber sensor comprises one or more of a magnetic fiber strain sensor, a magnetic fiber curvature sensor and a magnetic fiber impact monitoring sensor; the signal acquisition module is connected with the signal processing equipment, and the signal processing device is externally connected with the data processing and evaluation module and the storage module. The system is based on the magnetic fiber sensor, integration is carried out through electric signal response, the monitoring cost and the integration difficulty can be reduced, meanwhile, the system has the advantages of being high in real-time performance, capable of achieving long-distance transmission, high in integration and expansion and the like, and application of the system and the structure health monitoring technology based on magnetic fiber sensing is facilitated.

Description

technical field [0001] The invention relates to a structural health monitoring system for magnetic fiber composite materials and a method thereof, belonging to the technical field of structural health monitoring of composite materials. Background technique [0002] Composite materials are widely used in aerospace, wind power generation, rail transit, automobiles and other fields due to their light weight, high stiffness, high modulus, high reliability and decreasing manufacturing cost. Although composite materials are widely used, safety in critical areas still faces great challenges. Structural health monitoring technology (SHM) is to analyze the information related to the structural state (such as stress, strain, temperature, etc.) ), and identify the damage information and integrity of the structure, so as to realize the assessment of the health status of the structure. [0003] As a novel sensing material, magnetic fiber material has been developed into a variety of se...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B7/16G01B7/28G01L1/12G01N3/30G01N27/82
CPCG01B7/16G01B7/28G01L1/12G01N3/30G01N27/82
Inventor 秦发祥冯唐锋许鹏
Owner ZHEJIANG UNIV
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