A design approach for longitudinal-torsional ultrasonic transducers

被引:107
作者
Al-Budairi, Hassan [1 ]
Lucas, Margaret [1 ]
Harkness, Patrick [1 ]
机构
[1] Univ Glasgow, Sch Engn, Glasgow G12 8QQ, Lanark, Scotland
关键词
Ultrasonic transducer; Longitudinal-torsional vibration; Mason equivalent circuit; VIBRATION; CONVERTER; MOTOR; MODE;
D O I
10.1016/j.sna.2013.04.024
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
This study investigates combining longitudinal and torsional (L-T) vibration responses at the output face of a Langevin transducer. A mode degeneration method is adopted that converts the longitudinal response excited by the axially poled piezoceramic discs in the transducer into combined L-T vibration in the transducer front mass using geometric modifications of the wave path. The study uses three techniques; numerical, analytical, and experimental, in order to estimate and validate transducer electro-mechanical parameters for different geometric modifications, and also to evaluate transducer performance for different excitation levels in terms of the desired L-T response. A finite element (FE) analysis is used to optimise the mechanical structure of the transducer while the analytical model, which is based on an equivalent-circuit approach, is used to estimate the electrical impedance spectra and to confirm some of the FE calculations prior to fabrication. These models are then validated through an experimental characterization of the vibration response and impedance response and the results show that the operating frequency and torsionality can be tailored through modification of the transducer geometry. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码:99 / 106
页数:8
相关论文
共 24 条
[11]  
Lin SY, 1999, J ACOUST SOC AM, V105, P1643, DOI 10.1121/1.426717
[12]  
MANDAVINEJAD R, 2005, IRAN J SCI TECHNOL B, V29, pB2
[13]   Determination of piezoelectric transducers damping by using experimental and finite element simulations [J].
Nader, G ;
Silva, ECN ;
Adamowski, JC .
SMART STRUCTURES AND MATERIALS 2003: DAMPING AND ISOLATION, 2003, 5052 :116-127
[14]   Ultrasonic application in drilling [J].
Neugebauer, R ;
Stoll, A .
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2004, 149 (1-3) :633-639
[15]   PIEZOELECTRIC ULTRASONIC MOTOR USING LONGITUDINAL TORSIONAL COMPOSITE RESONANCE VIBRATION [J].
OHNISHI, O ;
MYOHGA, O ;
UCHIKAWA, T ;
TAMEGAI, M ;
INOUE, T ;
TAKAHASHI, S .
IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL, 1993, 40 (06) :687-693
[16]  
QI A, 2007, P 5 AUSTR C APPL MEC, V1, P325
[17]  
Rozenberg LD., 1969, SOURCES HIGH INTENSI, V2
[18]  
SELVA P, 2011, 16 INT C COMP STRUCT
[19]  
Sherrit S, 1999, ULTRASON, P921, DOI 10.1109/ULTSYM.1999.849139
[20]  
Sherrit S, 1999, ULTRASON, P647, DOI 10.1109/ULTSYM.1999.849482