Composite material intelligent structure with symmetrically implanted piezoelectric intelligent layer and preparation method thereof

• Main Authors: SUI QINGMEI, ZHANG FAYE, JIA LEI, KANG MYEONG-SOON, ZHANG LEI, WANG XIAOLONG, WEI JUNTAO, HAN ZE
• Format: Patent
• Language: Chinese; English
• Published: 23.09.2022
• Subjects: CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS; MEASURING; PHYSICS; PRINTED CIRCUITS; TESTING

The invention discloses a composite material intelligent structure with symmetrically implanted piezoelectric intelligent layers and a preparation method thereof, the composite material intelligent structure is a laminated structure, the composite material intelligent structure sequentially comprises a base material layer, a bottom surface piezoelectric intelligent layer, a middle layer, a top surface piezoelectric intelligent layer and a protective layer from one side to the other side, and the base material layer, the middle layer and the protective layer are all composite material laminated structures. The lamination number of the base material layer is the same as that of the protection layer; the bottom piezoelectric intelligent layer and the top piezoelectric intelligent layer are the same in structure. The two piezoelectric intelligent layers are used for structural symmetric implantation, excitation of single-mode signals can be achieved, the influence of ultrasonic guided wave multi-mode characterist