Results 81 to 90 of about 4,945 (206)

Position tracking control of electro-hydrostatic actuators via adaptive finite-time backstepping and state observation

Scientific Reports
In this paper, the adaptive finite-time backstepping control approach is proposed for electro-hydrostatic actuator with symmetrical cylinder (EHSC) under the unmeasured states and disturbances.
Van Du Phan, Hung Le Nguyen, Van Chuong Le, Kyoung Kwan Ahn   +3 more
doaj   +1 more source

Enhanced Operation Mode Design and Motion Control of a Dual-Redundancy Electro-Hydrostatic Actuator

Actuators
In dual-redundancy electro-hydrostatic actuators (EHAs), the dual pumps are mainly designed for safety, where the cylinder is controlled mainly by one pump while the other one is standby for redundancy. However, such a strategy is basically like a single-
Huatao Jin, Shuanglu Li, Yaobao Yin, Rui Guo, Cheng Fang, Jiangkun Zou   +5 more
doaj   +1 more source

Design of a five-axis ultra-precision micro-milling machine—UltraMill. Part 1: Holistic design approach, design considerations and specifications [PDF]

, 2009
High-accuracy three-dimensional miniature components and microstructures are increasingly in demand in the sector of electro-optics, automotive, biotechnology, aerospace and information-technology industries.
B Denkena, CR Friedrich, Dehong Huo, E Kussul, ELJ Bohez, FC Chen, Frank Wardle, G Otten, H Li, H Weule, J Bryan, J Chae, Kai Cheng, KF Ehmann, M Tanaka, M Weck, N Ikawa, O Remus Tutunea-Fatan, P Schellekens, P Sriyotha, S Filiz, SW Lee, X Liu, Y Okazaki, Y Takeuchi, YB Bang   +25 more
core   +1 more source

H∞ Control for a Secondary Regulation Electro‐Hydraulic Drive System of Robot Mobile Platform

International Journal of Intelligent Systems, Volume 2025, Issue 1, 2025.
The secondary regulation hydrostatic transmission technology and H∞ control are applied to the mobile platform of the robot in this paper. The H∞ control system and the secondary regulation electro‐hydraulic drive system of the mobile platform are designed.
Faye Zang, Xiujie Yin, Richard Murray
wiley   +1 more source

Development of an Electro-Hydrostatic Actuator CADUCEUS and an Actuator-Equipped Rotary Mechanism

Journal of Robotics and Mechatronics
An actuator for achieving the same force in both directions, and a mechanism for supporting rotary motion with the actuator are proposed. By fabricating models and performing tests, the action of the actuator mechanism, and its application on an excavator was demonstrated.
Kwanwai Mak, Koichi Osuka
openaire   +1 more source

3D printing of ceramics: Advantages, challenges, applications, and perspectives

Journal of the American Ceramic Society, Volume 107, Issue 12, Page 7879-7920, December 2024.
Abstract 3D printing (3DP) technologies have transformed the processing of advanced ceramics for small‐scale and custom designs during the past three decades. Simple and complex parts are designed and manufactured using 3DP technologies for structural, piezoelectric, and biomedical applications.
Susmita Bose, Enver Koray Akdogan, Vamsi K. Balla, Sushant Ciliveri, Paolo Colombo, Giorgia Franchin, Nicholas Ku, Priya Kushram, Fangyong Niu, Joshua Pelz, Andrew Rosenberger, Ahmad Safari, Zachary Seeley, Rodney W. Trice, Lionel Vargas‐Gonzalez, Jeffrey P. Youngblood, Amit Bandyopadhyay   +16 more
wiley   +1 more source

Current Performance and On-Going Improvements of the 8.2 m Subaru Telescope

, 2004
An overview of the current status of the 8.2 m Subaru Telescope constructed and operated at Mauna Kea, Hawaii, by the National Astronomical Observatory of Japan is presented.
Ando, Hiroyasu, Aoki, Kentaro, Aoki, Wako, Chikada, Yoshihiro, Doi, Yoshiyuki, Ebizuka, Noboru, Elms, Brian, Fujihara, Gary, Furusawa, Hisanori, Fuse, Tetsuharu, Gaessler, Wolfgang, Harasawa, Sumiko, Hayano, Yutaka, Hayashi, Masahiko, Hayashi, Saeko, Ichikawa, Shinichi, Imanishi, Masatoshi, Ishida, Catherine, Iye, Masanori, Kaifu, Norio, Kamata, Yukiko, Kanzawa, Tomio, Karoji, Hiroshi, Kashikawa, Nobunari, Kawabata, Koji, Kobayashi, Naoto, Kodaira, Keiichi, Komiyama, Yutaka, Kosugi, George, Kurakami, Tomio, Letawsky, Michael, Mikami, Yoshitaka, Miyashita, Akihiko, Miyazaki, Satoshi, Mizumoto, Yoshihiko, Morino, Junichi, Motohara, Kentaro, Murakawa, Koji, Nakagiri, Masao, Nakamura, Kyoko, Nakaya, Hidehiko, Nariai, Kyoji, Nishimura, Tetsuo, Noguchi, Kunio, Noguchi, Takeshi, Noumaru, Takeshi, Ogasawara, Ryusuke, Ohshima, Norio, Ohyama, Yoichi, Okita, Kiichi, Omata, Koji, Otsubo, Masashi, Oya, Shin, Potter, Robert, Saito, Yoshihiko, Sasaki, Toshiyuki, Sato, Shuji, Scarla, Dennis, Schubert, Kiaina, Sekiguchi, Kazuhiro, Sekiguchi, Maki, Shelton, Ian, Simpson, Chris, Suto, Hiroshi, Tajitsu, Akito, Takami, Hideki, Takata, Tadafumi, Takato, Naruhisa, Tamae, Richard, Tamura, Motohide, Tanaka, Wataru, Terada, Hiroshi, Torii, Yasuo, Uraguchi, Fumihiko, Usuda, Tomonori, Weber, Mark, Winegar, Tom, Yagi, Masafumi, Yamada, Toru, Yamashita, Takuya, Yamashita, Yasumasa, Yasuda, Naoki, Yoshida, Michitoshi, Yutani, Masami   +83 more
core   +1 more source

Triggerable Patches for Medical Applications

Advanced Materials, Volume 36, Issue 35, August 28, 2024.
Externally triggerable patches are attractive and versatile tools enabling several medical applications. In this review, their main working mechanisms are discussed, highlighting the role of the triggering stimuli in the control of therapeutic action. The broad potential of these devices is explored, while also reviewing the current open challenges in ...
Sofia Sirolli, Daniele Guarnera, Leonardo Ricotti, Andrea Cafarelli   +3 more
wiley   +1 more source

Analysis and Improvement of the Dynamic Characteristics of an Electro-Hydrostatic Actuator Based on a Vehicle’s Active Suspension

World Electric Vehicle Journal
This study investigates the dynamic characteristics of electro-hydrostatic actuators (EHA), which serve as the core actuating element in vehicle active suspension systems, with the aim of enhancing overall system performance. The purpose of this research
Peng Chen, Xing Chen
doaj   +1 more source

Electro-magneto-hydrodynamic peristaltic pumping of couple stress biofluids through a complex wavy micro-channel [PDF]

, 2017
Biomimetic propulsion mechanisms are increasingly being explored in engineering sciences. Peristalsis is one of the most efficient of these mechanisms and offers considerable promise in microscale fluidics.
Beg, OA, Jorar, R, Kadir, A, Tripathi, D
core   +2 more sources