Optimization of ultrasonic transducers for selective guided wave actuation

被引：0
作者：
Miszczynski, Mateusz [1 ]
Packo, Pawel [1 ]
Zbyrad, Paulina [1 ]
Stepinski, Tadeusz [1 ]
Uhl, Tadeusz [1 ]
Lis, Jerzh [2 ]
Wiatr, Kazimierz [3 ]
机构：
[1] AGH Univ Sci & Technol, Fac Mech Engn & Robot, Krakow, Poland
[2] AGH Univ Sci & Technol, Fac Mat Sci & Ceram, Krakow, Poland
[3] Acad Comp Ctr CYFRONET AGH, Krakow, Poland
来源：
SENSORS AND SMART STRUCTURES TECHNOLOGIES FOR CIVIL, MECHANICAL, AND AEROSPACE SYSTEMS 2016 | 2016年 / 9803卷
关键词：
structural health monitoring; guided ultrasonic waves; piezoelectric transducers; finite element method; genetic algorithms; WAFER ACTIVE SENSORS; LAMB;
D O I：
10.1117/12.2219548
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The application of guided waves using surface-bonded piezoceramic transducers for nondestructive testing (NDT) and Structural Health Monitoring (SHM) have shown great potential. However, due to difficulty in identification of individual wave modes resulting from their dispersive and multi-modal nature, selective mode excitement methods are highly desired. The presented work focuses on an optimization-based approach to design of a piezoelectric transducer for selective guided waves generation. The concept of the presented framework involves a Finite Element Method (FEM) model in the optimization process. The material of the transducer is optimized in topological sense with the aim of tuning piezoelectric properties for actuation of specific guided wave modes.
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页数：7
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