High-speed microscopic observation of the elliptical motion in an ultrasonic motor

2013 ◽  
Author(s):  
Tomoaki Mashimo ◽  
Midori Takaoka ◽  
Kazuhiko Terashima
Keyword(s):  
Microscopic Observation ◽  
High Speed ◽  
Ultrasonic Motor ◽  
Elliptical Motion

Research of a Ring-Type Linear Ultrasonic Motor

2011 ◽  
Vol 211-212 ◽  
pp. 254-258
Author(s):  
Jun Kao Liu ◽  
Wei Shan Chen ◽  
Zhen Yu Xue
Keyword(s):  
Traveling Wave ◽  
Transient Analysis ◽  
Ultrasonic Motor ◽  
Maximum Speed ◽  
Vibration Modes ◽  
Bending Vibration ◽  
Ring Type ◽  
Linear Ultrasonic Motor ◽  
Working Principle ◽  
Elliptical Motion

A new ring-type linear ultrasonic motor is proposed in this study. In this new design, bending vibration traveling wave is generated in a long ring by two groups of PZT ceramics bonded on the inner sides of the linear beams. Elliptical trajectory motions can be formed at particles on the teeth, which can realize the linear driving by frictional force. The working principle of the proposed design is introduced. Two bending vibration modes that have a phase difference of 90deg on space are analyzed. The elliptical motion trajectory of node on the tooth gained by the transient analysis verifies the excitation of bending traveling wave. A prototype motor is fabricated and measured, and a maximum speed of 15mm/s is reached.

scholarly journals High-Speed Atomic Force Microscopic Observation of ATP-Dependent Rotation of the AAA+ Chaperone p97

Structure ◽  
2013 ◽  
Vol 21 (11) ◽  
pp. 1992-2002 ◽  
Author(s):  
Kentaro Noi ◽  
Daisuke Yamamoto ◽  
Shingo Nishikori ◽  
Ken-ichi Arita-Morioka ◽  
Takayuki Kato ◽  
...  
Keyword(s):  
Microscopic Observation ◽  
High Speed ◽  
Atomic Force

A Study on the Rod Type Ultrasonic Motor

2013 ◽  
Vol 716 ◽  
pp. 600-607 ◽  
Author(s):  
Jwo Ming Jou
Keyword(s):  
Rotational Speed ◽  
High Speed ◽  
Mechanical Systems ◽  
Ultrasonic Motor ◽  
Experimental Results ◽  
High Loading ◽  
Optical Lens ◽  
Maximum Loading ◽  
High Torque ◽  
Low Torque

This study is to explore a rod type ultrasonic motor, it can solve the traditional ultrasonic motor with a high speed, but only low torque (or low loading ability) the shortcomings. Or want to improve the traditional ultrasonic motor with high torque (or high loading ability), but speed is too low the drawback. In other words, this study is expected to perform the ultrasonic motor, hope that we can have both higher speed and higher torque of the effect (or higher loading ability), and it can be applied to drive the optical lens (or electro-mechanical systems ) or applied to toggle the slider (or linear rails ). Based on the experimental results, we found that maximum rotational speed is 200rpm under conditions of 180Vp-p, 33.7kHz and 53gw preload. And the maximum loading ability and torque is respectively 4.13kgw and 0.273Nm under conditions of 180Vp-p, 33.7kHz and 15rpm rotational speed. Under similar size and driving conditions, its rotational speed is 3.8 times that of the conventional ultrasonic motor and the loading ability is 7.0 times the conventional ultrasonic motor.

High-Speed Microscopic Observation of Abrupt Heating Processes of a Micro Plasttic-Resim Particle

2004 ◽  
Vol 2004.3 (0) ◽  
pp. 51-52
Author(s):  
Shinya KATO ◽  
Ryuji YAMAKITA ◽  
Yojiro ISHINO ◽  
Norio OHIWA
Keyword(s):  
Microscopic Observation ◽  
High Speed

Design and Analysis of a Cylindrical Traveling Wave Ultrasonic Motor Using Composite Transducer

2009 ◽  
Vol 628-629 ◽  
pp. 103-108 ◽  
Author(s):  
Ying Xiang Liu ◽  
Jun Kao Liu ◽  
Wei Shan Chen ◽  
Sheng Jun Shi
Keyword(s):  
Traveling Wave ◽  
Flexural Vibration ◽  
Ultrasonic Motor ◽  
Vibration Modes ◽  
Motion Trajectories ◽  
Resonance Frequencies ◽  
New Type ◽  
Working Principle ◽  
Elliptical Motion ◽  
Sensitive Parameters

A cylindrical type traveling wave ultrasonic motor using composite transducer is proposed in this paper. A composite transducer is attached to the cylinder on its outer surface to excite two degenerate flexural vibration modes spatially and temporally orthogonal to each other in the cylinder. In this new design, a single transducer can excite the flexural traveling wave in the cylinder. Thus, an elliptical motion is achieved at the particle on the tooth. And the driving force is the frictional force between rotor and teeth. The working principle of proposed motor is analyzed. The cylinder and transducer are designed with FEM. The sensitive parameters of resonance frequencies of transducer and cylinder are gained with modal analysis. The resonance frequencies of two vibration modals of stator are degenerated, and the motion trajectories of nodes on the teeth are analyzed. The result of transient analysis shows that the trajectory of node on the tooth is nearly an ellipse. The results of this paper could guide the development of this new type of motor.

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