Results 51 to 60 of about 80,977 (277)

A Robust Adaptive One‐Sample‐Ahead Preview Super‐Twisting Sliding Mode Controller

International Journal of Adaptive Control and Signal Processing, EarlyView.
Block Diagram of the Robust Adaptive One‐Sample‐Ahead Preview Super‐Twisting Sliding Mode Controller. ABSTRACT This article introduces a discrete‐time robust adaptive one‐sample‐ahead preview super‐twisting sliding mode controller. A stability analysis of the controller by Lyapunov criteria is developed to demonstrate its robustness in handling both ...
Guilherme Vieira Hollweg, Paulo Jefferson Dias de Oliveira Evald, Shivam Chaturvedi, Hilton Abilio Gründling, Rodrigo Varella Tambara, Wencong Su   +5 more
wiley   +1 more source

Chatter Detection in Robotic Milling Using Entropy Features

Applied Sciences, 2022
Chatter detection in robotic milling is a difficult issue due to the complex dynamic behavior of robots. In this paper, a novel approach to detecting chatter in the robotic milling process is proposed.
Bin Yang, Kai Guo, Jie Sun
doaj   +1 more source

Hard‐Magnetic Soft Millirobots in Underactuated Systems

Advanced Robotics Research, EarlyView.
This review provides a comprehensive overview of hard‐magnetic soft millirobots in underactuated systems. It examines key advances in structural design, physics‐informed modeling, and control strategies, while highlighting the interplay among these domains.
Qiong Wang, Zixuan Zhang, Bingyan Li, Junkai Wang, Hongcheng Gu   +4 more
wiley   +1 more source

Diversity Patterns of Domestic Herbivore Viruses in China Reveal Transmission Dynamics with Disease Management Implications

Advanced Science, EarlyView.
This study performs pan‐viromic profiling of 14,529 samples from 5,710 domestic herbivores across five Chinese provinces, establishing the DhCN‐Virome (1,085,360 viral metagenomes). It reveals species/sample‐specific viromic signatures and cross‐species transmission dynamics, aiding unified disease control.
Yue Sun, Yong Li, Bagen Temur, Yuanqing Lin, Yuhang Liu, Le Yi, Zheng Sun, Gang Zhang, Jun Li, Yu Guo, Linchuan Li, Jinshan Cai, Wenliang Tian, Gen Meng, Lingling Jiang, Min Fang, Fuying Ding, Xuezhang Zhou, Changchun Tu, Biao He   +19 more
wiley   +1 more source

Experimental Study on Application of Tuned Mass Dampers for Chatter in Turning of a Thin-Walled Cylinder

Applied Sciences, 2021
Chatter is more likely to occur during the turning process of a thin-walled cylindrical workpiece owing to the low rigidity of such workpieces. Chatter causes intensive vibration, deterioration of the surface finish accuracy, tool damage, and tool wear ...
Yutaka Nakano, Tsubasa Kishi, Hiroki Takahara   +2 more
doaj   +1 more source

Vibration absorbers for chatter suppression: A new analytical tuning methodology [PDF]

, 2007
Vibration absorbers have been widely used to suppress undesirable vibrations in machining operations, with a particular emphasis on avoiding chatter.
Altintas, Brecher, Brock, Budak, Budak, Campomanes, Chung, Den Hartog, Everett Reed, Ganguli, Hahn, Lagarias, Liu, Mead, Neil D. Sims, Nishimura, Ormondroyd, Pratt, Rivin, Semercigil, Sims, Tarng, Tewani, Tlusty, Tlusty, Tobias   +25 more
core   +1 more source

A Genomic Catalog of Migratory Microbiomes from Wild Birds across China's Habitats

Advanced Science, EarlyView.
ABSTRACT Migratory birds play an important role in the spread of antimicrobial resistance (AMR); however, gaps in surveillance data from vital regions along migratory flyways across China limit the detection of emergent threats. Here, we assembled 340 metagenomes from 52 bird species covering 11 provincial administrative districts in China, presenting ...
Yanan Wang, Heqi Wu, Mengqi Qu, Chunge Zhang, Ziqian Xu, Yuhang Pei, Chaochao Zhao, Jiangtao Wang, Sufang Ma, Na Lyu, Xuebin Xu, Yuhai Bi, Baoli Zhu, George F. Gao   +13 more
wiley   +1 more source

Application of Mill Chatter Component Extraction and Root Cause Diagnosis in the Industrial Cold Rolling Mill

Shock and Vibration
The third-octave mode mill chatter is a prominent rejection in the efficiency and quality of the strip. The third-octave mode chatter frequency is in the range of 150–250 Hz. Frequency analysis of vibration acceleration signal or original rolling process
Xing Lu, Jie Sun, Qiyou Cheng, Dianhua Zhang   +3 more
doaj   +1 more source

Analytical prediction of stability limit in turning operations [PDF]

, 2006
Unstable cutting due to chatter vibrations is one of the most important problems during metal cutting operations. Chatter can be a limitation for productivity and surface quality in turning operations, especially when long and slender tools and parts are
Budak, Erhan, Ozlu, Emre, Özlü, Emre
core  

Surface roughness variation of thin wall milling, related to modal interactions [PDF]

, 2008
High-speed milling operations of thin walls are often limited by the so-called regenerative effect that causes poor surface finish. The aim of this paper is to examine the link between chatter instability and surface roughness evolution for thin wall ...
Assouline, Benardos, Bravo, Budak, Budak, Davies, Davies, Fofana, Gilles Dessein, Gradisek, Groover, Herranz, Lapoujoulade, Lionel Arnaud, Montgomery, Paris, Stout, Sébastien Seguy, Thevenot, Thevenot, Tobias, Zatarain   +21 more
core   +4 more sources