Traveling Wave Ultrasonic Motor Using a Flexural Composite Transducer

Autor:	Masahiro Fukami, Noritoshi Nakagawa, Jun Satonobu
Rok vydání:	2003
Předmět:	Transducer Materials science Physics and Astronomy (miscellaneous) Flexural strength Acoustics Ultrasonic motor Composite number General Engineering General Physics and Astronomy Edge (geometry) Circumference Excitation Voltage
Zdroj:	Japanese Journal of Applied Physics. 42:3007-3011
ISSN:	1347-4065 0021-4922
DOI:	10.1143/jjap.42.3007
Popis:	This paper presents a new design for a traveling wave ultrasonic motor with a bolt-clamped Langevin transducer. A flexural composite transducer was attached to a ring around its circumference to excite two degenerate flexural vibration modes spatially and temporally orthogonal to each other in the ring for flexural traveling wave excitation. The prototype motor, composed of a 30-mm-diameter composite transducer attached along the outer edge of a 130-mm-diameter ring, was designed and tested. A maximum torque of 1.28 Nm with a maximum efficiency of 3.8% was achieved when driven at an applied voltage of approximately 200 Vrms and a preload of 172 N.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a281d2318118c774681ad38e9f54614c https://doi.org/10.1143/jjap.42.3007 Zobrazit plný text záznamu