Zobrazeno 1 - 10
of 5 488
pro vyhledávání: '"Piezoelectric actuator"'
Publikováno v:
International Journal of Smart and Nano Materials, Vol 15, Iss 3, Pp 652-696 (2024)
The ultra-precision field is popular for its micro-nanometer positioning accuracy and large working stroke. Piezoelectric actuators based on the stick-slip operational principle exhibit superior performance characteristics, making them stand out with
Externí odkaz:
https://doaj.org/article/a425b0e5674741328faa427dc390fc85
Publikováno v:
e-Prime: Advances in Electrical Engineering, Electronics and Energy, Vol 9, Iss , Pp 100743- (2024)
Micro-blower is an innovative device that is used for sensitive applications such as electronics cooling, avionics and the medical field. It features a piezoelectric disc (PED)-diaphragm assembly. A 3D computational model of micro-blower is developed
Externí odkaz:
https://doaj.org/article/d93c4fdc6d884510b7593aadbf6715eb
Publikováno v:
IEEE Access, Vol 12, Pp 72521-72529 (2024)
Traditional mode conversion ultrasonic motors are typically composed of the superposition of multiple vibration modes, making them more complex than single-mode ultrasonic motors. This complexity makes it difficult to miniaturize. A micro radial-tors
Externí odkaz:
https://doaj.org/article/3ec923556183458ca1604491396f89d5
Autor:
Maryam Naghdi, Iman Izadi
Publikováno v:
IEEE Access, Vol 12, Pp 43924-43931 (2024)
Piezoelectric actuators are widely used in micro and nano-positioning systems for accurate movement. However, they exhibit some nonlinearities, particularly hysteresis, which makes precise control rather challenging. Many methods are available in the
Externí odkaz:
https://doaj.org/article/689bcee1d09145dcbf2b3c4c1600c1ef
Autor:
Roland Ryndzionek
Publikováno v:
IEEE Access, Vol 12, Pp 32080-32088 (2024)
In recent years, many researches have been carried out on piezoelectric multi-rotor structures. This paper describes the analysis, development and experimental process of an ultrasonic multi-cell piezoelectric motor using a multi-rotor structure. In
Externí odkaz:
https://doaj.org/article/8f4e177058af4be5b057b1e6d07d6cce
Autor:
Liheng Chen, Qingsong Xu
Publikováno v:
IEEE Open Journal of the Industrial Electronics Society, Vol 5, Pp 28-40 (2024)
This article proposes a new reinforcement learning (RL)-based adaptive control design for precision motion control of a two-degree-of-freedom piezoelectric XY nanopositioning system. In this design, an actor-critic structure is developed to eliminate
Externí odkaz:
https://doaj.org/article/c744e5fd0600461ca7a044057be28116
Publikováno v:
Actuators, Vol 13, Iss 8, p 309 (2024)
A non-contact piezoelectric actuator is proposed. The non-contact power transfer between stator and rotor is realized by pneumatic transmission, characterized by fast response, long life, compact structure, and easy miniaturization and control. The s
Externí odkaz:
https://doaj.org/article/f16a5ed93f2847fdb97c0c1d3df742e8
Publikováno v:
Micromachines, Vol 15, Iss 8, p 1050 (2024)
In this paper, a fast positioning platform (FPP) is proposed, able to meet simultaneously the requirements of large stroke and high frequency response, developed based on a PZT (piezoelectric actuator) and a quad-parallel flexible mechanism, for appl
Externí odkaz:
https://doaj.org/article/787a09887cdc405d9b559836e6c3cdd5
Publikováno v:
International Journal of Applied Mathematics and Computer Science, Vol 33, Iss 3, Pp 449-461 (2023)
A nonsmooth optimization control (NOC) based on a sandwich model with hysteresis is proposed to control a micropositioning system (MPS) with a piezoelectric actuator (PEA). In this control scheme, the hysteresis phenomenon inherent in the PEA is desc
Externí odkaz:
https://doaj.org/article/ec3e9c55edf74c0d8538437800745c81
Publikováno v:
Machines, Vol 12, Iss 6, p 420 (2024)
This paper designs a two-degrees-of-freedom (DOF) compliant positioning stage with antagonistic piezoelectric actuation. Two pairs of PEAs are arranged in an antagonistic configuration to generate reciprocating motions. Flexure mechanisms are intenti
Externí odkaz:
https://doaj.org/article/a0137a8880a24be789a891a401917a6b