Results 21 to 30 of about 667 (180)

Influence of anisotropic support of tool for self-excited chatter in end-milling

Nihon Kikai Gakkai ronbunshu
In end milling, chatter vibration generated during processing becomes a problem in processing accuracy. Chatter vibration is classified into forced chatter and self-excited chatter depending on the cause of the vibration.
Kenichiro MATSUZAKI, Takahiro RYU, Takashi NAKAE, Keizo TSUKAMOTO, Ryuta SAMESHIMA   +4 more
doaj   +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

Sliding Mode Control in Aerospace Applications: A Survey

International Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT Sliding mode control (SMC) enjoys robustness to matched and unmatched (in the case of minimum phase input‐output dynamics) bounded perturbations, and finite time convergence. Second‐order and higher‐order sliding mode control systems (2‐SMC/HOSMC) retain all the advantages of sliding mode control, but in addition can be applied to systems of ...
Yuri Shtessel, Christopher Edwards
wiley   +1 more source

Stability Analysis of a Nonlinear Coupled Vibration Model in a Tandem Cold Rolling Mill

Shock and Vibration, 2019
Mill chatter in tandem cold rolling mill is a major rejection to the quality and production of the strips. In most mill vibration models, either the roll mass is usually limited to vibrate in vertical direction and vertical-horizontal directions, or the ...
Xing Lu, Jie Sun, Guangtao Li, Zhenhua Wang, Dianhua Zhang   +4 more
doaj   +1 more source

Active Damping of Milling Vibration Using Operational Amplifier Circuit

Chinese Journal of Mechanical Engineering, 2018
The problem of chatter vibration is associated with adverse consequences that often lead to tool impairment and poor surface finished in a workpiece, and thus, controlling or suppressing chatter vibrations is of great significance to improve machining ...
Bashir Bala Muhammad, Min Wan, Yang Liu, Heng Yuan   +3 more
doaj   +1 more source

Key Technical Fields and Future Outlooks of Space Manipulators: A Survey

SmartBot, EarlyView.
This paper systematically reviews the technological development of space manipulators, emphasizing the unique challenges posed by space environments. It examines four areas: structural design, modeling, planning, and control, while introducing typical ground test platforms.
Gang Chen, Zeyuan Huang, Ying Yan, Xiaokang An, Zhikai Zhao, Jirong Lin, Xiangrong Zhao, Xianyuan Gao, Junyi Zong, Xuewen Jia, Zhipeng Yao, Jianliang Liao, Ning Ji   +12 more
wiley   +1 more source

Chatter Identification of Three-Dimensional Elliptical vibration Cutting Process Based on Empirical Mode Decomposition and Feature Extraction

Applied Sciences, 2018
Three-dimensional elliptical vibration cutting (3D-EVC) is one of the machining methods with the most potential in ultra-precision machining; its unique characteristics of intermittent cutting, friction reversal, and ease of chip removal can improve the ...
Mingming Lu, Bin Chen, Dongpo Zhao, Jiakang Zhou, Jieqiong Lin, Allen Yi, Hao Wang   +6 more
doaj   +1 more source

PLACE‐FRAMING URBANITY: The Case of Kalasatama, Helsinki

International Journal of Urban and Regional Research, EarlyView.
Abstract Narratives, visuality and symbolic representations are increasingly important in contemporary urban planning and development. This article seeks to understand how urbanity, one of the key goals of Helsinki's recent planning, has been constructed in the Kalasatama regeneration area. The construction of urban image and identity is viewed as soft
Tuomas Ilmavirta
wiley   +1 more source

Identification method for stable spindle rotations against chatter by means of servo information

Nihon Kikai Gakkai ronbunshu, 2015
Chatter vibration must be avoided to ensure the cutting accuracy in milling. Several studies have proposed analytical prediction methods for chatter stability based on a frequency-domain milling model and a modal analysis.
Ryo KOIKE, Yasuhiro KAKINUMA, Tojiro AOYAMA, Kouhei OHNISHI   +3 more
doaj   +1 more source

(Un)threading Rhythms: On Affect and Vibe in a Rave

Anthropology of Consciousness, EarlyView.
ABSTRACT In Toronto, raves arise across large nightclubs, DIY venues and outdoors, despite changing regulations that have further arranged and narrowed their possibility in the past 4 years. Following a rave in Toronto, this work explores ways that potentialities and affects emerge in a single night, through my entry of taking part in dancing and ...
Tatiana Yunadi
wiley   +1 more source