scholarly journals Design features of piezoelectric motors

2012 ◽  
Vol 16 (6) ◽  
Author(s):  
A.P. Miroshnichenko ◽  
A.E. SHorohov

The features of the piezoelectric motor designs with improved efficiency and starting torque are considered, suggested a version of application design, which allows doubling the speed while maintaining starting torque

2013 ◽  
Vol 459 ◽  
pp. 418-423 ◽  
Author(s):  
Xi Fu Chen ◽  
Wei Qing Huang ◽  
Ji Quan Luo ◽  
Jing Jing Xu

A type of drive foot with displacement amplification was proposed based on analysis of the friction drive principle of the non-resonant linear piezoelectric motors. Firstly, the displacement amplification mechanism of the drive foot was carried on and the elliptical trajectory equation of the drive tip was deduced through the mechanism model of the drive foot. The optimization design of main structure parameters was conducted with finite element analysis software to analyze the influences of displacement amplification. The simulation results showed that the maximum magnification factor can be obtained when H(the thickness of flexible arm) is 0.8mm and θ (the flexible angle) is 12°. A linear piezoelectric motor prototype was designed and fabricated, the experimental results indicated that this kind of motor can run steadily in a wide range (the operation bandwidth is beyond 1kHz) and that the thrust can be 0.35N and the maximum velocity can be 2.5mm/s when the operation frequency is 4kHz and the operation voltage is 90V.


2020 ◽  
Vol 25 (2) ◽  
pp. 236-242
Author(s):  
Yung Ting ◽  
Kai-Chao Chang ◽  
Chih-Hsuan Yu ◽  
Amelia Sugondo

In this paper, a new hybrid piezoelectric motor was developed. A range of degeneracy was found to obtain multiple choice of resonance frequency by adjusting the length of the elastic blocks neighboring to the longitudinal and torsional vibrators. A template was implemented in between the longitudinal and torsional vibrators to decrease the mutual vibration effect that effectively makes the calculated and actual driving frequency nearly close. Such configuration was instrumental to preserve the expected performance and reduce the trial-and-error design overhaul process of the elastic blocks. Moreover, a dual hybrid motor was easily formed by butting each stator of the two hybrid motors together with a rotor in the middle. Case studies of both single and dual hybrid motors are presented with both simulation and experimental results to demonstrate the structure design and the degeneracy approach. Besides the convenience of structurally combining two single hybrid motors to enhance the output, it was interesting to find out whether the proposed dual hybrid motor can significantly increase either the speed or torque by using different phase control methods. Therefore, using the dual hybrid motor provides a great advantage by providing an option for pursuing higher speed or larger torque output for certain applications.


2020 ◽  
Vol 2020 ◽  
pp. 1-9
Author(s):  
Shun Li ◽  
Quan Xiao

An increasing number of people are using mobile applications to obtain travel-related information and activities due to the prosperity of the internet and mobile technologies nowadays. The design, development, and improvement of mobile tourist guide application (MTGA) are particularly important for travel-related companies. As an emerging application scenario of mobile technologies in the field of tourism, existing research on MTGA lacks analysis of its specific design, especially from the perspective of users to investigate the microscopic design features and improvement strategies. The Kano model was adopted by prior studies to analyse product quality attribute, while importance-performance analysis (IPA) was used to prioritize quality attributes for improvement. However, due to the limitation of the Kano model in neglecting the attribute performance and importance and the weakness of IPA in considering only the one-dimensional quality attributes, the use of single approach has its shortcomings for analysing the design features of MTGA. We attempt to integrate Kano model and IPA to conduct a study on the classification and improvement strategy issues for the design features of MTGA. Particularly, we identify design features of MTGA first, propose a method to classify them, and determine their priorities for developing and improving as well. An online questionnaire survey is conducted. The paper extends research on Kano model and IPA into the domain of mobile application design and provides insights into management strategies about the design of MTGA, which also offers novel and important implications for travel-related companies to increase the users’ satisfaction by optimizing their mobile application design.


2013 ◽  
Vol 62 (2) ◽  
pp. 237-250
Author(s):  
Jean-Francois Rouchon ◽  
Dominique Harribey ◽  
Duc-Hoan Tran ◽  
Roland Ryndzionek ◽  
Łukasz Sienkiewicz ◽  
...  

Abstract The presented paper concerns a novel concept of hybrid piezoelectric motor based on electroactive lubrication principle. Its structure is combined of quasi-static and resonance piezoelectric actuators, synchronizing their work to generate the rotary movement. The hybrid motor topology is compared to the existing piezoelectric motors, regarding its field of applications in embedded systems with very high security requirements. The electroactive lubrication principle is briefly presented with regards to optimization of the hybrid motor. The performance principle of the hybrid motor is described in terms of its working cycle. The assembling process of the prototype hybrid motor is briefly explained with emphasis put on the frequency and impedance tuning of the applied quasi-static and resonance piezoelectric actuators. Next, the hybrid motor power supply system is described and chosen measured performance characteristics are presented. Finally, conclusions concerning the features of the tested prototype hybrid motor and possible solutions of the faced issues, during assembling and testing, are presented.


1991 ◽  
Vol 19 (3) ◽  
pp. 122-141 ◽  
Author(s):  
C. Wright ◽  
G. L. Pritchett ◽  
R. J. Kuster ◽  
J. D. Avouris

Abstract A method for determining the effect of suspension dynamics on tire wear has been developed. Typical city cycle maneuvers are defined by instrumented vehicle testing and data in the form of forward velocities and steer angles are used as an input to an ADAMS computer model of the vehicle. A simulation of the maneuvers generates a tire's operating environment in the form of normal load, slip, and camber variations, which contain all the subtle effects of the vehicle's suspension, steering, and handling characteristics. A cyclic repetition of the tire's operating environment is constructed and used to control an MTS Flat-Trac machine. In this way, accelerated tire wear can be generated in the laboratory which is directly related to the design features of the vehicle's suspension and steering systems.


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