Results 71 to 80 of about 183,967 (321)

Torsional vibration characteristic study of the grid-connected DFIG wind turbine

IOP Conference Series: Earth and Environmental Science, 2017
This paper studies the torsional vibration characteristics of the grid-connected doubly-fed induction generator (DFIG) wind turbine by small signal analysis method. Firstly a detailed small-signal stability union model of the grid-connected DFIG wind turbine is developed, including the mechanical system and electrical system.
Songtao Yu, Da Xie, Wangping Wu, Chenghong Gu, Furong Li   +4 more
openaire   +1 more source

A Superlubricated Magnetically Steerable Microcatheter with Integrated Optical and Fluidic Channels

Advanced Robotics Research, EarlyView.
A magnetically steerable microcatheter with integrated optical and fluidic channels is developed for multifunctional navigation in tortuous anatomical environments. A surface‐grafted hydrogel coating enables low‐friction actuation. The device demonstrates stable light and fluid delivery during magnetic manipulation, offering a compact platform for ...
Yuntian Du, Ruokun He, Luqi Li, Hesheng Wang, Zhuo‐Chen Ma, Bing Han   +5 more
wiley   +1 more source

Waveguide Photoactuators: Materials, Fabrication, and Applications

Advanced Robotics Research, EarlyView.
Waveguide photoactuators convert guided light into mechanical motion. Their tethered‐flexible design enables minimally invasive surgery and confined‐space robotics. This review aims to guide materials selection, device design, and system integration, accelerating the transition of waveguide photoactuators from laboratory prototypes to versatile ...
Minjie Xi, Hemin Pan, Yang Zong, Yongfeng Mei, Jizhai Cui   +4 more
wiley   +1 more source

Structural design and analysis of high-static-low-dynamic stiffness torsional vibration isolator for ship shafting

Zhongguo Jianchuan Yanjiu
ObjectivesIn order to isolate low-frequency torsional vibration for ship shafting, this paper proposes and analyzes a high-static-low-dynamic stiffness torsional vibration isolator.MethodsFirst, the components are designed on the basis of the parallel ...
Lintao LI, chao ZHANG, Zhirong YANG, Zhushi RAO, Wangqiang XIAO   +4 more
doaj   +1 more source

Data‐Driven Printability Modeling of Hydrogels for Precise Direct Ink Writing Based on Rheological Properties

Advanced Science, EarlyView.
A predictive model for 3D printability is developed by integrating rheological analysis, including the Large Amplitude Oscillatory Shear (LAOS) test, with machine learning. With prediction errors under 10%, the model shows that post‐extrusion recovery controls horizontal printability, while high‐strain‐rate nozzle flow dictates vertical printability ...
Eun Hui Jeong, Jiho Choi, Han Bi Park, Ji Woo Lee, Seo Yeon Bae, Byoung Soo Kim, ChangKyu Yoon, Jun Dong Park   +7 more
wiley   +1 more source

Robotic Materials With Bioinspired Microstructures for High Sensitivity and Fast Actuation

Advanced Science, EarlyView.
In the review paper, design rationale and approaches for bioinspired sensors and actuators in robotics applications are presented. These bioinspired microstructure strategies implemented in both can improve the performance in several ways. Also, recent ideas and innovations that embed robotic materials with logic and computation with it are part of the
Sakshi Sakshi, Rohit Pratyush Behera, Hongyu Zhou, Yifan Wang, Hortense Le Ferrand   +4 more
wiley   +1 more source

Alfven seismic vibrations of crustal solid-state plasma in quaking paramagnetic neutron star [PDF]

, 2010
Magneto-solid-mechanical model of two-component, core-crust, paramagnetic neutron star responding to quake-induced perturbation by differentially rotational, torsional, oscillations of crustal electron-nuclear solid-state plasma about axis of magnetic ...
Bastrukov, S., Chang, H. -K., Molodtsova, I., Takata, J., Xu, R. X.   +4 more
core   +2 more sources

Artificial Tactile Perception System for Exploring Internal and External Features of Objects via Time‐Frequency Features

Advanced Science, EarlyView.
By engaging in different active exploration behaviors, the tactile perception system can generate distinct signal modes, enabling the application of targeted decoding strategies for efficient and accurate perception of both external and internal object features.
Yuanzhi Zhou, Jingqi Zhang, Linyi Li, Muxing Huang, Ziyi Zhang, Xingmin Lu, Zilan Li, Xuchun Gui, Xinming Li   +8 more
wiley   +1 more source

Thermo‐Responsive Self‐Recoverable Porous Sensors with Writable Electrodes: Advancing Wearable Motion Detection

Advanced Science, EarlyView.
A self‐recoverable flexible porous sensor with diverse designability of electrodes is developed through writable vapor phase polymerization using shape memory polymers (SMPs) as the fundamental materials. The sensors enable long‐term comprehensive human motion detection.
Ying Gao, Xingyi Dai, Yuanyuan Zhang, Guohao Fang, Gui Li, Yu Zheng, Long‐Biao Huang, Biqin Dong   +7 more
wiley   +1 more source

The dynamics of eccentric block in a fully mechanical vertical drilling tool under the effect of torsional vibration

Advances in Mechanical Engineering, 2018
In present, the drilling industry have to face the reality of low oil and gas prices, fully mechanical vertical drilling tool is likely to become the best choice for vertical drilling in the future.
Lixin Li, Qilong Xue, Baolin Liu, Jin Wang, Xinyu Li   +4 more
doaj   +1 more source