Honeycomb sandwich structure and method of manufacturing honeycomb sandwich structure
AssigneeMitsubishi Electric Corporation
InventorsKazushi SEKINE, Hajime TAKEYA, Hiromi SEKO, Yoshikazu TANAKA
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Abstract
A honeycomb sandwich structure formed of face skin materials made of fiber reinforced plastics and a honeycomb core has a structure in which an optical fiber sensor structure is embedded in an adhesive layer formed between the face skin materials and the honeycomb core. With this, it is possible to provide a honeycomb sandwich structure and a method of manufacturing the honeycomb sandwich structure that enable precise thermal control to be implemented even when a thermal control device is bonded onto a surface of the honeycomb sandwich structure and enable evaluation of a temperature with high resolution and high accuracy.
Claims6
A honeycomb sandwich structure, comprising:
- face skin materials made of fiber reinforced plastics;
- and
- a honeycomb core bonded to the face skin materials through intermediation of adhesive layers,
- wherein each of the adhesive layers has embedded therein an optical fiber sensor structure comprising:
- an optical fiber in which at least one sensor portion for detecting a temperature is formed;
- and
- a tube for covering the optical fiber.
A method of manufacturing the honeycomb sandwich structure comprising face skin materials made of fiber reinforced plastics and a honeycomb core bonded to the face skin materials through intermediation of adhesive layers, the method comprising:
- a first step of inserting, into a tube, an optical fiber in which at least one sensor portion for detecting a temperature is formed and performing heating under pressure to deform the tube so as to manufacture an optical fiber sensor structure in which the optical fiber and the tube are held in contact with each other;
- a second step of placing the optical fiber sensor structure, which is manufactured in the first step, on an adhesive surface of each of the face skin materials through intermediation of a first adhesive so that the at least one sensor portion is located at a desired position;
- a third step of superimposing a second adhesive on the optical fiber sensor structure placed on the adhesive surface through intermediation of the first adhesive in the second step to sandwich the optical fiber sensor structure between the first adhesive and the second adhesive;
- and
- a fourth step of placing the honeycomb core on the adhesive surface on which the optical fiber sensor structure sandwiched between the first adhesive and the second adhesive in the third step is placed and performing heating under pressure to bond the optical fiber sensor structure and the honeycomb core to the adhesive surface.
Dependencies are inferred from the claim text.