Results 21 to 30 of about 698 (181)

Vibration control with thin-film-coil actuator for head-positioning system in hard disk drives

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2015
In a head-positioning system of hard disk drives, various mechanical resonances may degrade performance or stability of the control system. In these mechanical resonances, a torsional mode of a head-stack assembly (HSA), in which a resonant frequency is ...
Takenori ATSUMI   +3 more
doaj   +1 more source

Analysis of Factors Influencing Peak Torques and Peak Losses of Rotary Voice Coil Actuators Used in Aerospace

open access: yesIEEE Access, 2021
Rotary voice coil actuators (RVCAs) are commonly used for precision servo drive systems working within limited angle range in some fields including aerospace.
Li Yong   +4 more
doaj   +1 more source

Design and Control of a Dual-Stage Actuation Active Vibration Isolation System

open access: yesIEEE Access, 2019
Active vibration isolation system is used in various fields to reduce the vibrations transmitted. In this paper, a novel dual-stage actuator is proposed, which combines a voice coil motor and a piezoelectric actuator.
Bo Zhao, Weijia Shi, Jiubin Tan
doaj   +1 more source

Modelling of a Positive End-Expiratory Pressure Valve with a Voice-coil Actuator

open access: yesCurrent Directions in Biomedical Engineering, 2022
The positive end-expiratory pressure (PEEP) valve is important in the regulation of the pressure at the patient airways in devices for mechanical ventilation.
Brütt Robin   +3 more
doaj   +1 more source

Optimization and simulation of a voice coil motor for fuel injectors of two-stroke aviation piston engine

open access: yesAdvances in Mechanical Engineering, 2019
Two-stroke engines taking advantages of high power density and light weight as well as small size are widely used on aircrafts. Compared with conventional fuel injection system, gasoline direct injection technology can control the air-fuel ratio ...
Hongli Gao   +5 more
doaj   +1 more source

Design of a Voice Coil Motor for Active Vibration Isolator of CFRP High Speed Inspection System [PDF]

open access: yes한국정밀공학회지, 2019
The demand for inspection of high-speed systems for machined Carbon Fiber Reinforced Plastics parts for automobile-industry and aviation industry is constantly rising.
Hyo-Young Kim   +4 more
doaj   +1 more source

Design of 4-DOF Voice Coil Motor with Function of Reducing Laser Geometrical Fluctuations

open access: yesActuators, 2021
In order to improve the quality of the laser and shorten the optical path of the fast steering mirror (FSM) laser compensation system, this paper proposes a four-degrees-of-freedom (4-DOF) voice coil motor (VCM) with the function of reducing laser ...
Chien-Sheng Liu, Yu-Cheng Wu, Yu-Jie Lan
doaj   +1 more source

Voice Coil Actuators For Percussion Robotics

open access: yes, 2017
Percussion robots have successfully used a variety of actuator technologies to activate a wide array of striking mechanisms. Popular types of actuators include solenoids and DC motors. However, the use of industrial strength voice coil actuators provides a compelling alternative given a desirable set of heterogeneous features and requirements that span
Robert Van Rooyen   +2 more
openaire   +2 more sources

Design of a linear macro–micro actuation stage considering vibration isolation

open access: yesAdvances in Mechanical Engineering, 2015
In microelectronics manufacturing, macro–micro actuation stages are typically applied to obtain a high-precision positioning at a high acceleration. Macro–micro actuation stage comprises a voice coil motor that achieves a high-acceleration motion and a ...
Lufan Zhang   +3 more
doaj   +1 more source

Active Disturbance Rejection Control of Voice Coil Motor Active Suspension Based on Displacement Feedback

open access: yesActuators, 2022
Electromagnetic active suspension is an important technique used in vehicles to improve ride comfort and handling stability. To achieve satisfactory suspension performance, the active suspension control requires strong robustness against the vehicle ...
Feng Pan, Junlin Luo, Wei Wu
doaj   +1 more source

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