Results 41 to 50 of about 161 (121)

2022 ACVIM Forum Research Abstract Program

, 2022
Journal of Veterinary Internal Medicine, Volume 36, Issue 6, Page 2282-2454, November/December 2022.
wiley   +1 more source

In Situ Measurement of Seeking Speed and Seeking Induced Head-Disk Interface Instability in Hard Disk Drives

Shock and Vibration, 2015
This paper investigated the instability of head-disk interface caused by the voice coil motor (VCM) end crashing the crash stop during the seeking of magnetic head.
Yu Wang, Xiongfei Wei, Yanyang Zi, Kwok-Leung Tsui   +3 more
doaj   +1 more source

Analysis of Adaptive Fractional-Order Sliding-Mode Control Method Based on Smith Predictor for Voice Coil Motor

Applied Sciences
To satisfy the stringent requirements of ultra-precision systems for high accuracy and rapid dynamic response, the chatter and system delay of voice coil motor (VCM) under operating conditions have become key bottlenecks restricting overall performance ...
Ziyi Shi, Xiaobao Yang
doaj   +1 more source

Data‐driven adaptive control design for active stabilization of stratospheric airship imaging platform: A characteristic model approach

IET Control Theory &Applications, Volume 18, Issue 12, Page 1491-1504, August 2024.
This study presents a data‐driven design method for stabilizing imaging platform. It has the following characteristics and advantages: (1) It avoids the dependence on the prior model and improves the adaptability and robustness of the system to the environment; (2) Different from the existing learning‐based algorithms, it does not involve the ...
Yanlin Chen, Shaoping Shen, Junjie Guan, Zikun Hu   +3 more
wiley   +1 more source

Electrical Performance of a Piezo-inductive Device for Energy Harvesting with Low-Frequency Vibrations

Actuators, 2019
This study presents the experimental evaluation of a piezo-inductive mechanical system for applications of energy harvesting with low-frequency vibrations.
Carlos Alberto Vargas, Hector Andres Tinoco   +1 more
doaj   +1 more source

Design of a haptic device for presenting pressure and skin stretching stimuli to the palm

Frontiers in Mechanical Engineering
This paper discusses the design of a two-degree-of-freedom (2-DOF) pseudo-force presentation device for a palm. The device was designed to present pressure stimulation to a palm to invoke a pseudo-force sensation.
Mayuka Kojima, Shunsuke Yoshimoto, Akio Yamamoto   +2 more
doaj   +1 more source

Comparative Analysis among Single-Stage, Dual-Stage, and Triple-Stage Actuator Systems Applied to a Hard Disk Drive Servo System

Actuators, 2019
In modern times, the design and optimization of different actuator systems for controlling a high-precision position control system represent a popular interdisciplinary research area.
Alamgir Hossain, Md. Arifur Rahman
doaj   +1 more source

A Quasiphysics Intelligent Model for a Long Range Fast Tool Servo

The Scientific World Journal, 2013
Accurately modeling the dynamic behaviors of fast tool servo (FTS) is one of the key issues in the ultraprecision positioning of the cutting tool. Herein, a quasiphysics intelligent model (QPIM) integrating a linear physics model (LPM) and a radial basis
Qiang Liu, Xiaoqin Zhou, Jieqiong Lin, Pengzi Xu, Zhiwei Zhu   +4 more
doaj   +1 more source

Flying-height and tracking-position controls with thermal-positioning actuator in hard disk drives

Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2017
To improve positioning accuracy of a magnetic head in hard disk drives (HDDs), a triple-stage-actuator system was developed with a thermal-positioning actuator for a magnetic-head-positioning system.
Takenori ATSUMI
doaj   +1 more source

Data-Based Youla Parameterization for Robust Disturbance Observer Design of VCM Motion Stage

Actuators
Robust disturbance rejection in voice coil motor (VCM) motion stages is often limited by model uncertainties and the difficulty of obtaining accurate plant inverses.
Beibei Hou, Lingchen Meng, Weipeng Zhang, Pengbo Liu, Peng Yan   +4 more
doaj   +1 more source