An l-shaped plate type linear ultrasonic motor with large thrusts

被引：1
|
作者：
Zhang B. [1 ]
Yao Z. [1 ]
Liu Z. [1 ]
Li X. [1 ]
机构：
[1] State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing
来源：
| 2018年 / Xi'an Jiaotong University卷 / 52期
关键词：
Linear ultrasonic motor; Plate type stator; Single-mode drive; Structure design;
D O I：
10.7652/xjtuxb201809005
中图分类号：
学科分类号：
摘要：
To improve the mechanical output performance of the ultrasonic motor in flat space, a plate type linear ultrasonic motor is proposed. The motor is composed of a linear guide and an L-shaped stator which is constructed by two mutually perpendicular rectangular plate vibrators. The symmetric and antisymmetric modes of stator based on the bending vibration are utilized, and each mode is excited individually to move the linear guide in one direction. The influence of a slot in the front end cover on amplitudes of driving foot is analyzed, and a slotted front end cover is adopted to enlarge the amplitudes. Then the effect of bolt clamping method of vibrator on the prestress in piezoelectric ceramics is discussed. In the view of the flat structure and large transverse dimension of the vibrator, a bolt is used on both sides of the center of cross section to fasten the vibrator and to improve the value and uniformity of the prestress. Prototypes are fabricated and experimentally investigated. Their typical output performance is that the maximum no-load speed reaches 435 mm/s and maximum thrust reaches 100 N, achieving a thrust-to-weight ratio of 54.6. © 2018, Editorial Office of Journal of Xi'an Jiaotong University. All right reserved.
引用
收藏
页码：37 / 44
页数：7
相关论文
共 15 条
  • [1] Fu Q., Zhang B., Yao Z., Design of double-vibrator linear ultrasonic motor in fuze isolating explosion mechanism, Journal of Northwestern Polytechnical University, 35, 3, pp. 545-552, (2017)
  • [2] Toshiiku S., Takashi K., An introduction to ultrasonic motors, pp. 1-4, (1993)
  • [3] Wakai T., Kurosawa M.K., Higuchi T., Transducer for an ultrasonic linear motor with flexible driving part, Proceedings of Ultrasonics Symposium., pp. 683-686, (1998)
  • [4] Asumi K., Fukunaga R., Fujimura T., Et al., Miniaturization of a V-shape transducer ultrasonic motor, Japanese Journal of Applied Physics, 48, 48, (2009)
  • [5] Li X., Yao Z., Analytical modeling and experimental validation of a V-shape piezoelectric ultrasonic transducer, Smart Materials and Structures, 25, 7, (2016)
  • [6] Yao Z., Yang D., Zhao C., Structure design and power flow analysis of bar-structure linear ultrasonic motors, Proceedings of the CSEE, 29, 24, pp. 56-60, (2009)
  • [7] Jian Y., Yao Z., Silberschmidt V.V., Linear ultrasonic motor for absolute gravimeter, Ultrasonics, 77, pp. 88-94, (2017)
  • [8] Li X., Yao Z., Yang M., A novel large thrust-weight ratio V-shaped linear ultrasonic motor with a flexible joint, Review of Scientific Instruments, 88, 6, (2017)
  • [9] Vyshnevsky O., Kovalev S., Wischnewskiy W., A novel, single-mode piezoceramic plate actuator for ultrasonic linear motors, IEEE Transactions on Ultrasonics Ferroelectrics and Frequency Control, 52, 11, pp. 2047-2053, (2005)
  • [10] Liu Z., Yao Z., Li X., Et al., Design and experiments of a linear piezoelectric motor driven by a single mode, Review of Scientific Instruments, 87, 11, pp. 273-768, (2016)
12