Abstract
Applications are limited at present because the currently available ultrasonic motors (USMs) do not provide sufficiently high torque and power. The conventional travelling-wave USM needs the bearing to support, which required lubricant. To solve the above problem, a bearingless travelling-wave USM is designed. First, a novel structure of the two-sided USM consisting of a two-sided teeth stator and two disk-type rotors is designed. And the excitation principle of the two-sided travelling-wave USM is analyzed. Then, using ANSYS software, we set up the model of the stator to predict the excitation frequency and modal response of the stator. The shape of the vibration mode was obtained. Last, the load characteristics of the USM are measured using experimental method. The maximum stall torque and the no-load speed were obtained. The results showed that the characteristics of the two-sided USM are better than those of the conventional one-sided USM.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Bar-Cohen, Y., Bao, X., Grandia, W., 1998. Rotary Ultrasonic Motors Actuated by Traveling Flexural Waves. Proceedings of the SPIE International Smart Materials and Structures Conference, San Diego, CA, 3329:794–780.
Chen, Y., Lu, K., Zhou, T.Y., Liu, T., Lu, C.Y., 2006. Study of a mini-ultrasonic motor with square metal bar and piezoelectric plate hybrid. Jpn. J. Appl. Phys., 45(5B):4780–4781. [doi:10.1143/JJAP.45.4780]
Duan, W.H., Quek, S.T., Lim, S.P., 2005. Finite element analysis of a ring type ultrasonic motor. Proc. of SPIE, 5757:575–586. [doi:10.1117/12.597983]
Frangi, A., Corigliano, A., Binci, M., Faure, P., 2005. Finite element modelling of a rotating piezoelectric ultrasonic motor. Ultrasonics, 43(9):747–755. [doi:10.1016/j.ultras.2005.04.005]
Glenn, T.S., 2002. Mixed-domain Performance Model of the Piezoelectric Traveling-wave Motor and the Development of a Two-Sided Device. Ph.D Thesis, MIT.
Glenn, T.S., Hagood, N.W., 1997. Development of a two-sided piezoelectric rotary ultrasonic motor for high torque. Proceedings of SPIE, 3041:326–338. [doi:10.1117/12.275657]
Guo, J.F., Wu, J.G., 2004. Research on the high torque and high precision ultrasonic motor for aerospace application. Journal of Astronautics, 25(1):70–76 (in Chinese).
Hagood, N.W., McFarland, A.J., 1995. Modeling of a piezoelectric rotary ultrasonic motor. IEEE Transactions on Ultrasonics Ferroelectrics and Frequency Control, 42(2):210–224. [doi:10.1109/58.365235]
Hao, M., Chen, W.S., 2006. Analysis and Design of a Ring-type Traveling Wave Ultrasonic Motor. Proceedings of the 2006 IEEE International Conference on Mechatronics and Automation, Luoyang, China, p.1806–1810. [doi:10.1109/ICMA.2006.257508]
Jin, L., Cheng, Z.H., Wang, F.Q., 1998. A new-type piezoelectric traveling wave ultrasonic motor with the symmetric two-sided teeth. Journal of Harbin Institute of Technology, 30:264–267 (in Chinese).
Juang, P.A., Gu, D.W., 2003. Finite element simulation for a new disc-type ultrasonic stator. IEEE Transactions on Ultrasonics Ferroelectrics and Frequency Control, 50(4):368–375. [doi:10.1109/TUFFC.2003.1197959]
Kanda, T., Makino, A., Ono, T., Suzumori, K., Morita, T., Kurosawa, M.K., 2006. A micro ultrasonic motor using a micro-machined cylindrical bulk PZT transducer. Sensors and Actuators A: Physical, 127(1):131–138. [doi:10.1016/j.sna.2005.10.056]
Kawai, Y., Asai, K., Naito, S., Fukui, T., Adachi, Y., Handa, N., Ikeda, K., Nojima, T., Tsuda, K., 1995. High power traveling-wave type ultrasonic motor. Jpn. J. Appl. Phys., 34(part 1):2711–2714. [doi:10.1143/JJAP.34.2711]
Kurosawa, M.K., Takahashi, M., Higuchi, T., 1998. Transducer for high speed and large thrust ultrasonic linear motor using two sandwich-type vibrators. IEEE Transactions on Ultrasonics Ferroelectrics and Frequency Control, 45(5):1180–1195. [doi:10.1109/58.726442]
Petit, L., Gonnard, P., Grehant, B., 2001. A Piezomotor for the Small Actuator Market. Proceedings of the 2000 12th IEEE International Symposium on Applications of Ferroelectrics, 1:33–36. [doi:10.1109/ISAF.2000.941507]
Xu, Z.K., Hu, M.Q., Jin, L., 2005. The optimization design of traveling wave type ultrasonic motor with large diameter. Micromotors, 38(2):16–19 (in Chinese).
Author information
Authors and Affiliations
Additional information
Project (No. 50175018) supported by the National Natural Science Foundation of China
Rights and permissions
About this article
Cite this article
Li, X., Chen, Ws., Xie, T. et al. Novel high torque bearingless two-sided rotary ultrasonic motor. J. Zhejiang Univ. - Sci. A 8, 786–792 (2007). https://doi.org/10.1631/jzus.2007.A0786
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1631/jzus.2007.A0786