A microwave thermal actuation system and thermal actuation method for damage detection or repair of composite materials

Abstract

The invention discloses a microwave thermal excitation system used for detecting or repairing damages of a composite material. The microwave thermal excitation system comprises a microwave power supply, a current controller, a magnetron, a waveguide, a microwave radiation antenna, and a microwave energy converter arranged near the microwave radiation antenna, which are connected in sequence, wherein the current controller is connected with a microwave controller by a lead wire; and the microwave energy converter comprises a silicon rubber base body and micro-wave absorption materials which are uniformly distributed in the silicon rubber base body. The invention further provides a method for carrying out thermal excitation on the composite material by using the microwave thermal excitation system.

Description

technical field [0001] The invention relates to a thermal excitation system for composite materials, in particular to a thermal excitation system that is not limited by the electrical conduction of the excited structure itself (such as carbon fiber reinforced material) and the internal conductive components (such as cables), and can better adapt to complex profiles. The invention relates to a rapid thermal excitation system and a thermal excitation method thereof, which belong to the field of composite material detection and repair. Background technique [0002] Composite materials are widely used in aerospace, clean energy, civil engineering, transportation and other fields, and the proportion used in modern engineering structures is increasing. Since the manufacturing process of composite materials is highly dispersed and vulnerable to damage under various environmental conditions, the occurrence and development of defects is inevitable. In order to ensure that the struct...

AI Technical Summary

Problems solved by technology

However, carbon fiber itself is also conductive, and there is a hidden danger of sparks, so microwave heating cannot be directly used for detection and repair

In components made of non-conductive composite materials (such as glass fiber reinforced resin materials, etc.), there will also be conductive parts, such as metal wires, pins, metal frames, etc., making these non-conductive composite components unable to implement microwave Heating in situ, affecting detection and repair rates

Images