NSTL国家科技图书文献中心

1. Enhanced Pressure Control Using a Disturbance Observer for Active Pneumatic Vibration Isolator (PVI) NSTL国家科技图书文献中心

Shin, Jae-Min | Ahn, Hyeong-Joon - 《International Journal of Precision Engineering and Manufacturing》 - 2025,26(4) - 887～893 - 共7页

摘要：Active pneumatic vibration isolators (PVI) are crucial in precision manufacturing, effectively suppressing unwanted vibrations. Although a pressure control is used to improve the dynamics of the pneum...

关键词： Active pneumatic vibration isolator | Pneumatic actuator | Disturbance observer | Pressure control

2. Improvement of the Transient Levitation Response of a Magnetic Levitation System Using Hybrid Fuzzy and Artificial Neural Network Control NSTL国家科技图书文献中心

Zheng, Yupeng | Ahn, Hyeong-Joon - 《International Journal of Precision Engineering and Manufacturing》 - 2025,26(5) - 1159～1165 - 共7页

摘要：The magnetic levitation system (MLS) is a versatile technology with wide-ranging applications, offering benefits like contactless operation, high precision, energy efficiency, and reduced maintenance....

关键词： Magnetic levitation | Transient response | Hybrid control | Fuzzy logic | Artificial neural network

3. Novel Direct Digital Interface of Frequency-Modulated Eddy-Current Displacement Sensor (ECDS) for Real-Time Control of AMB NSTL国家科技图书文献中心

Vo, Ngoc Vu | Ahn, Hyeong-Joon - 《International Journal of Precision Engineering and Manufacturing》 - 2025,26(1) - 59～65 - 共7页

摘要：Renowned for its non-contact nature, high-resolution capabilities, and suitability for real-time control, ECDS (eddy current displacement sensor) operates on electromagnetic induction principles to de...

关键词： Active magnetic bearing | Eddy-current sensor | Frequency modulation | Direct digital interface

4. Identification and Compensation of the Flexure-Induced Motion Error with a Voice Coil Motor NSTL国家科技图书文献中心

Song, Zhi Min | Ahn, Hyeong-Joon - 《International Journal of Precision Engineering and Manufacturing》 - 2024,25(8) - 1683～1688 - 共6页

摘要：Flexures are commonly used in various fields, including optics, microscopy, robotics, and precision engineering since they offer several advantages over traditional motion systems that employ mechanic...

关键词： Flexure-induced motion error | Voice coil motor | Feed forward compensation

5. The Prediction of the Angular Transmission Error of a Harmonic Drive by Measuring Noncontact Tooth Profile and Considering Three-dimensional Tooth Engagement EI 工程索引 NSTL国家科技图书文献中心

Kim, Beom-Seok | Jeong, Seung-Tae ... - 《International Journal of Precision Engineering and Manufacturing》 - 2023,24(3) - 371～378 - 共8页 - 被引量：1

摘要：The importance of robots is growing in manufacturing of the new normal era caused by the 4th industrial revolution and the pandemic. Harmonic drive is widely used as a precision reducer for the joint ...

关键词： Harmonic drive | Angular transmission error | Noncontact tooth profile measurement | Three-dimensional tooth engagement

6. Rigid Precision Reducers for Machining Industrial Robots SCIE Web of Science核心 EI 工程索引 SCOPUS Scopus数据库 NSTL国家科技图书文献中心

Pham, Anh-Duc | Ahn, Hyeong-Joon - 《International Journal of Precision Engineering and Manufacturing》 - 2021,22(8) - 1469～1486 - 共18页 - 被引量：31

摘要：Machining robots are expected to significantly change existing production systems in the near future. The quality of the machining process with robots is mainly governed by the accuracy and stiffness ...

关键词： Rigid precision reducer | Cycloid reducer | High stiffness reducer | Machining robot | Industrial robot

7. Impact Analysis of Tolerance and Contact Friction on a RV Reducer using FE Method SCIE Web of Science核心 EI 工程索引 SCOPUS Scopus数据库 NSTL国家科技图书文献中心

Ahn, Hyeong-Joon | Choi, Byeong Min ... - 《International Journal of Precision Engineering and Manufacturing》 - 2021,22(7) - 1285～1292 - 共8页 - 被引量：16

摘要：Since RV (rotation vector) reducer has a high reduction ratio with compact size, high efficiency and stiffness, the reducer is extensively used in applications requiring high precision in the restrict...

关键词： RV reducer | Finite element analysis | Torsional rigidity | Tolerance and friction

8. Data-Driven Self-sensing Technique for Active Magnetic Bearing SCIE Web of Science核心 EI 工程索引 SCOPUS Scopus数据库 NSTL国家科技图书文献中心

Yoo, Seong Jong | Kim, Sinyoung ... - 《International Journal of Precision Engineering and Manufacturing》 - 2021,22(6) - 1031～1038 - 共8页 - 被引量：5

摘要：In the last two decades, soft sensors proved themselves as a valuable alternative to the physical sensor for gathering critical process information. A self-sensing technique for the magnetic bearing i...

关键词： Data-driven sensor | Self-sensing | Active magnetic bearing | RNN

9. A Passive RFC (Reaction Force Compensation) Mechanism Using Adjustable Piecewise Linear Stiffness of Pre-Compressed Springs NSTL国家科技图书文献中心

Kim-Duc Hoang | Ahn, Hyeong-Joon - 《International Journal of Precision Engineering and Manufacturing》 - 2018,19(9) - 1317～1322 - 共6页 - 被引量：3

摘要：Nonlinear elements are used when a mechanical system has different performance requirements according to its positions. Piecewise linear system is widely used to investigate and to approximate nonline...

关键词： Linear motor motion stage | Piecewise linear stiffness | Passive RFC | Pre-compressed spring

10. A variable stiffness mechanism for a movable magnet track of a linear motor stage NSTL国家科技图书文献中心

Ahn, Hyeong-Joon - 《Journal of Mechanical Science and Technology》 - 2017,31(11) - 5203～5207 - 共5页 - 被引量：2

摘要：A movable magnet track for a linear motor stage changes the reaction force of a magnet track into vibration energy and reduces the stage base vibration. Although a movable magnet track can reduce the ...