Abstract:Multi-degree-of-freedom ultrasonic motors with advantages of high mechanical integration, high resolution and anti-EMI, are widely used in the fields of micro-robotics, medical equipment, monitoring and detecting. In order to improve the tolerance and adaptive capacity of three-degree-of-freedom(3-DOF) spherical ultrasonic motor, a spiral spring as preload applied component is designed in this work. The statics model of 3-DOF motor is built up from spatial geometric relations between three annular stators and the spherical rotor. The model is used to analyze the force distribution influence of different structural parameters on the contact circumference. The results of numerical simulation show that the spiral spring has the adaptive ability to provide uniform preload. The research can guide the optimal design and performance improvement of the 3-DOF motor.
王剑, 胡锡幸, 郭吉丰. 基于柔性板簧的三自由度球形超声波电机静力学建模与分析[J]. 电工技术学报, 2014, 29(3): 125-131.
Wang Jian, Hu Xixing, Guo Jifeng. Statics Modeling and Analyzing of Three-Degree-of-Freedom Spherical Ultrasonic Motors with the Spiral Spring. Transactions of China Electrotechnical Society, 2014, 29(3): 125-131.
[1] 胡敏强, 金龙, 顾菊平. 超声波电机原理与设计[M]. 北京: 科学出版社, 2005. [2] 郭吉丰, 白洋, 王剑. 多自由度超声波电机的研究进展和展望[J]. 振动与冲击, 2013, 32(15): 1-7. Guo Jifeng, Bai Yang, Wang Jian. Recent development and prospect of multi-degree-of-freedom ultrasonic motors[J]. Journal of Vibration and Shock, 2013, 32(15): 1-7. [3] Zhang X, Nakamura K, Ueha S. Two-joint robot finger design based on multi-degree-of-freedom ultrasonic motors[J]. Acoustical Science and Technology, 2009, 30(1): 42-47. [4] Takemura K, Park S, Maeno T. Control of multi-DOF ultrasonic actuator for dexterous surgical instrument [J]. Journal of Sound and Vibration, 2008, 311(3-5): 652-666. [5] Hoshina M, Mashimo T, Fukaya N. Spherical ultrasonic motor drive system for camera orientation in pipe inspection[J]. Advanced Robotics, 2013, 27(3): 199-209. [6] Amano T, Ishii T, Nakamura K, et al. An ultrasonic actuator with multi degree of freedom using bending and longitudinal vibrations of a single stator[C]. Proceedings of the Ultrasonics Symposium, Sendai, 1998, 1: 667-670. [7] 徐志科, 金龙, 胡敏强, 等. 一种新型双定子三自由度超声波电机特性研究[J]. 微电机, 2009, 42(4): 27-29. Xu Zhike, Jin Long, Hu Minqiang, et al. Research on a novel 3-DOF ultrasonic motor with two cylinder stators[J]. Micromotors, 2009, 42(4): 27-29. [8] 李志荣, 赵淳生, 黄卫清. 圆柱形三自由度超声电机定子的结构动力学优化设计[J]. 振动工程学报, 2005, 18(4): 471-474. Li Zhirong, Zhao Chunsheng, Huang Weiqing. Structural dynamics optimal design of a 3-DOF cylinder type stator of ultrasonic motor[J]. Journal of Vibration and Engineering, 2005, 18(4): 471-474. [9] Gouda Y, Nakamura K, Ueha S. A miniaturization of the multi-degree-of-freedom ultrasonic actuator using a small cylinder fixed on a substrate[J]. Ultrasonics, 2006, 44(Supplement): e617-e620. [10] Aoyagi M, Beeby S P, White N M. A novel multi- degree-of-freedom thick-film ultrasonic motor[J]. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2002, 49(2): 151-158. [11] Ting Y, Tsai Y R, Hou B K, et al. Stator design of a new type of spherical piezoelectric motor[J]. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2010, 57(10): 2334-2342. [12] Mashimo T, Toyama S, Ishida H. Design and implementation of spherical ultrasonic motor[J]. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2009, 56(11): 2514-2521. [13] 胡锡幸, 郭吉丰. 3个行波定子的2自由度球形超声波电机[J]. 中国电机工程学报, 2010, 30(9): 62-67. Hu Xixing, Guo Jifeng. Two degree of freedom spherical ultrasonic motor with three traveling-wave stators[J]. Proceedings of the CSEE, 2010, 30(9): 62-67. [14] 傅平, 郭吉丰, 沈润杰. 三自由度行波型超声波电机的静力学分析[J]. 浙江大学学报(工学版), 2007, 41(6): 968-972. Fu Ping, Guo Jifeng, Shen Runjie. Statics analysis of three-degree-of-freedom traveling-wave type ultrasonic motor[J]. Journal of Zhejiang University (Engineering Science), 2007, 41(6): 968-972. [15] Storck H, Wallaschek J. The effect of tangential elasticity of the contact layer between stator and rotor in travelling wave ultrasonic motors[J]. International Journal of Non-Linear Mechanics, 2003, 38(2): 143-159.