Analysis of impedance matching for a spherical multi-degree-of-freedom ultrasonic motor

Li, Zheng; Wang, Zhe; Han, Haitao; Sun, Hong

doi:10.1063/5.0030599

Cited by 6 publications

(2 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Traditionally, the components of MPRs are manufactured by the CNC (computer numerical control) machining, and the robots can be fabricated by assembling the components and the piezoelectric actuating elements together with epoxy resin adhesive or bolts and nuts. [ 215 , 216 , 217 , 218 ] MPRs fabricated by the conventional CNC machining method usually use the metal material as the robot base, and have the advantages of high machining accuracy and high structural strength. However, the CNC machining method is difficult to process some special microstructures, which cannot meet the further miniaturization and special design requirements of MPRs.…”

Section: Manufacturing Methods and Materials For Mprsmentioning

confidence: 99%

Developments and Challenges of Miniature Piezoelectric Robots: A Review

Li,

Deng,

Zhang

et al. 2023

Advanced Science

View full text Add to dashboard Cite

Miniature robots have been widely studied and applied in the fields of search and rescue, reconnaissance, micromanipulation, and even the interior of the human body benefiting from their highlight features of small size, light weight, and agile movement. With the development of new smart materials, many functional actuating elements have been proposed to construct miniature robots. Compared with other actuating elements, piezoelectric actuating elements have the advantages of compact structure, high power density, fast response, high resolution, and no electromagnetic interference, which make them greatly suitable for actuating miniature robots, and capture the attentions and favor of numerous scholars. In this paper, a comprehensive review of recent developments in miniature piezoelectric robots (MPRs) is provided. The MPRs are classified and summarized in detail from three aspects of operating environment, structure of piezoelectric actuating element, and working principle. In addition, new manufacturing methods and piezoelectric materials in MPRs, as well as the application situations, are sorted out and outlined. Finally, the challenges and future trends of MPRs are evaluated and discussed. It is hoped that this review will be of great assistance for determining appropriate designs and guiding future developments of MPRs, and provide a destination board to the researchers interested in MPRs.

show abstract

Section: Manufacturing Methods and Materials For Mprsmentioning

confidence: 99%

Developments and Challenges of Miniature Piezoelectric Robots: A Review

Li,

Deng,

Zhang

et al. 2023

Advanced Science

View full text Add to dashboard Cite

show abstract

“…Therefore, it cannot meet the needs of some scenes. To solve the problem of poor adaptability of multi-DOF actuators, it can be studied based on single-DOF actuators [ 13 , 14 , 15 , 16 ]. Although the single-DOF actuators have a single driving method, due to their flexible structure, they can cooperate with other actuators to achieve the purpose of multi-DOF driving.…”

Section: Introductionmentioning

confidence: 99%

Design and Locomotion Study of Two-DOF Actuator Driven by Piezoelectric–Electromagnetic Hybrid Mode

Wang

et al. 2022

Sensors

Self Cite

View full text Add to dashboard Cite

A piezoelectric actuator (PEA) has the characteristics of high control precision and no electromagnetic interference. To improve the degree of freedom (DOF) to adapt to more working scenes, a piezoelectric–electromagnetic hybrid-driven two-DOF actuator is proposed. The PEA adopts the composite structure of the lever amplification mechanism and triangular amplification mechanism. The structure effectively amplifies the output displacement of the piezoelectric stack and increases the clamping force between the driving foot and the mover. The electromagnetic actuator (EMA) adopts a multi-stage fractional slot concentrated winding permanent magnet synchronous actuator, which can better match the characteristics of PEA. The structure and working principle of the actuator are introduced, the dynamic analysis is carried out, and the factors affecting the clamping force are obtained. At the same time, the air gap magnetic field is analyzed, and the structural size of the actuator is optimized. The experiment shows that the maximum driving speed can reach 348 mm/s, the load capacity is 3 kg, the optimal initial rotor angle is 49°, the maximum torque is 2.9 N·m and the maximum speed is 9 rad/s, which proves the stability and feasibility of the actuator.

show abstract