A method for shaping and implanting an optical fiber sensing network into a projectile structure

Abstract

A method for embedding an optical fiber sensing network into a guided missile body structure in a shape-giving manner includes the following steps that firstly, a soft wood layer (2) is laid on the outer surface of a guided missile metal shell (1); then by means of cutting, grooves (3) capable of sufficiently containing optical fibers to be laid are formed, sensing optical fibers (4) are laid in the optical fiber grooves (3) one by one, and the optical fiber sensing network (5) equal in interval and longitudinally and transversely staggered is formed; and gaps between the optical fibers (4) and the optical fiber grooves (3) are filled with low-elasticity-modulus glue (6), and the optical fibers (4) are made to be fixed. Then, a layer of soft wood is laid on the existing soft wood layer (2) to protect the sensing optical fibers (4), so that it is prevented that when the metal shell is sleeved with a heat preventing protection layer, the optical fibers (4) are damaged. The method has the beneficial effects of being flexible in arrangement, simple in process, good in safety performance and the like, the existing structure of the structural body cannot be damaged, the method can be applied to various structural bodies, and the production efficiency can be greatly improved.

Description

technical field [0001] The invention relates to a method for shaping and implanting an optical fiber sensing network into an elastic body structure. Background technique [0002] Intelligent structure is a bionic structure system, which integrates the main structure, sensors, controllers, and drivers. It not only has a load-carrying function, but also senses and processes internal and external environmental information, and changes the structure by changing the physical properties of the structure. Respond to the environment and realize the vital signs and intelligent functions of structural health self-diagnosis, self-monitoring, self-adaptation and self-repair. At present, there are many choices of sensors that can be used in smart structures, such as piezoelectric ceramics, resistance strain wires, giant magnetostrictive films, and optical fibers. Among them, optical fiber sensors are small in size, light in weight, high in strength, and flexible Good, good flexibility, ...

AI Technical Summary

Problems solved by technology

In the patent "A Method for Embedding Optical Fiber Sensors in Aircraft Cabin" with the authorization number ZL201410048814.2, the method of directly carving grooves on the metal surface of the aircraft cabin is adopted, although the shaped implantation of optical fiber sensors on the surface of the structure is realized. , but the metal slotting process is complex, the construction period is long, and there is some damage to the surface of the structure, the application range is limited

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