Results 41 to 50 of about 4,207 (222)

Research on Power Matching and Energy Optimal Control of Active Load-Sensitive Electro-Hydrostatic Actuator

IEEE Access, 2021
Electro-hydrostatic actuator (EHA) is an important type of power-by-wire (PBW) which is a highly integrated closed volume control system with the advantages of high reliability, high efficiency and easy maintenance.
Ligang Huang, Tian Yu, Zongxia Jiao, Yanpeng Li   +3 more
doaj   +1 more source

Pathway to the PiezoElectronic Transduction Logic Device

, 2015
The information age challenges computer technology to process an exponentially increasing computational load on a limited energy budget - a requirement that demands an exponential reduction in energy per operation.
Armstrong, C., Bryce, B. A., Copel, M., Elmegreen, B. G., Gordon, M. S., Haensch, W., Hung, L. -W., Keech, R., Kuroda, M. A., Liu, X. -H., Martyna, G. J, Miyazoe, H., Newns, D. M., Reuter, K. B., Rossnagel, S. M., Schrott, A. G., Shaw, T. M., Shett, S., Solomon, P. M., Theis, T. N., Trolier-McKinstry, S.   +20 more
core   +2 more sources

Ferrofluidic solenoid [PDF]

, 1973
An electromechanical actuator for producing mechanical force and/or motion in response to electrical signals is disclosed. The actuator includes a ferromagnetic fluid and a coil which are contained within an elastomeric capsule.
Sabelman, E. E.
core   +1 more source

Intelligent Acousto‐Electrical Metamaterials (IAM) for Sound Source Detection

Advanced Materials, EarlyView.
Our proposed metamaterial concept enables sound source detection using a single material, in contrast to conventional arrays that require dozens or even hundreds of transducers. We show that the coupled acoustic–vibrational–electrical responses in piezoelectric metamaterials give rise to topology‐governed charge transport, producing distinct voltage ...
Victor Couëdel, Haotian Lu, Jiayan Zhang, Desheng Yao, Ananya Bhardwaj, Ramiro Contreras, Karim Sabra, Xiaoyu (Rayne) Zheng   +7 more
wiley   +1 more source

Experimental Investigation of an Electro-Hydrostatic Actuator Based on the Novel Active Compensation Method

IEEE Access, 2020
For electro-hydrostatic actuators (EHAs), how to estimate and compensate for the combined effects of the severe nonlinearity caused by inner leakage and friction, the parametric uncertainties of the hydraulic components due to the environment and the ...
Mingkang Wang, Yan Wang, Yongling Fu, Rongrong Yang, Jiang'ao Zhao, Jian Fu   +5 more
doaj   +1 more source

Study on fault diagnosis algorithms of EHA based on CNN-SVM

Xibei Gongye Daxue Xuebao, 2023
Contrapose the highly integrated, complex working conditions and many kinds of faults of aircraft electro hydrostatic actuator(EHA), to diagnose the typical fault of EHA effectively, a fault diagnosis algorithm based on convolutional neural networks (CNN)
LI Xudong, LI Yanjun, CAO Yuyuan, WANG Xingye, DUAN Shixuan, ZHAO Zejian   +5 more
doaj   +1 more source

Model inversion of electrical engineering systems from bicausal bond graphs [PDF]

, 2005
In this paper, the application of bicausal bond graphs for model inversion of typical electrical engineering systems is emphasised. Inverse models are particularly useful for the synthesis step of the system design process.
Gandanegara, Grace, Roboam, Xavier, Sareni, Bruno   +2 more
core  

All‐in‐One Underwater Quality Evaluation Metamaterial With Mechanical Robustness, Sound Attenuation, and Diffuse Reflection

Advanced Science, EarlyView.
In this work, a bioinspired all‐in‐one underwater quality evaluation metamaterial, combining sound attenuation, diffuse reflection, and mechanical robustness, is proposed based on jumping spider locomotion and human skeletal biomechanics. Meanwhile, a CNN‑driven quality evaluation framework is established for theoretically dimension‐reduced ...
Hongze Li, Zhenyu Li, Jinshui Yang, Jianhao Wu, Yidan Chen, Linzhi Wu, Hong Hu, Penglin Gao, Yegao Qu   +8 more
wiley   +1 more source

Performance Analysis of an Electro-Hydrostatic Actuator

Journal of the Korean Society for Aeronautical & Space Sciences, 2007
The EHA(Electro-hydrostatic Actuator) reveals completely different characteristics from the conventional valve-controlled Electro-hydraulic actuators. In this paper, its mathematical model including nonlinear elements was derived to be verified by experiments.
openaire   +2 more sources

Load-Sensing Pump Design to Reduce Heat Generation of Electro-Hydrostatic Actuator Systems

Energies, 2018
The electro-hydrostatic actuator (EHA) with variable pump displacement is considered to be a promising alternative to the currently popular EHA with fixed pump displacement in terms of heat reduction.
Qun Chao, Junhui Zhang, Bing Xu, Yaoxing Shang, Zongxia Jiao, Zhihui Li   +5 more
doaj   +1 more source