Results 81 to 90 of about 411,923 (164)

The Influence of Spindle Speed Variation on the Suppression of Self-Oscillations During Turning

Shock and Vibration
This paper presents the results of a study examining the effect of the spindle speed variation (SSV) mode on the suppression of self-oscillations (chatter) during turning.
Pavlo Tryshyn, Yuriy Vnukov, Olena Kozlova   +2 more
doaj   +1 more source

Modelling and Understanding of Chatter [PDF]

Recent analysis in chatter modelling of BTA deep-hole drilling consisted in phenomenological modelisation of relationships between the observed time series and appearance of chatter during the process. Using the newly developed MEWMA control chart [4, 5],
Wolfrum, P., Raabe, Nils, Webber, Oliver, Sandamirskaya, Y., Gepperth, A.   +4 more
core  

Research Status and Development of Vibration Suppression Using Passive Damping Boring Bars

Shock and Vibration
High length-to-diameter ratio boring bars are prone to regenerative chatter during deep hole boring, which seriously restricts machining accuracy and stability.
Taoyu Zhao, Daolong Yang, Linkang Yang, Wenlong Dai, Xiaoqing Zhao, Yuming Cui, Lie Li   +6 more
doaj   +1 more source

Improving Robotic Milling Performance through Active Damping of Low-Frequency Structural Modes

Journal of Manufacturing and Materials Processing
Industrial robots are increasingly prevalent due to their large workspace and cost-effectiveness. However, their limited static and dynamic stiffness can lead to issues like mode coupling chatter and regenerative chatter in robotic milling processes ...
Govind Narayan Sahu, Andreas Otto, Steffen Ihlenfeldt   +2 more
doaj   +1 more source

Chatter detection and suppression using wavelet and fuzzy control approaches in end milling

, 2005
In metal cutting processes, chatter has been recognized as one of the main factors that limit machining productivity and affect product quality. Two different categories of chatter were classified by researchers, i.e., regenerative chatter and non ...
Wang, Lei
core   +1 more source

Analysis of Adaptive Fractional-Order Sliding-Mode Control Method Based on Smith Predictor for Voice Coil Motor

Applied Sciences
To satisfy the stringent requirements of ultra-precision systems for high accuracy and rapid dynamic response, the chatter and system delay of voice coil motor (VCM) under operating conditions have become key bottlenecks restricting overall performance ...
Ziyi Shi, Xiaobao Yang
doaj   +1 more source

Study on the sensorless control method of permanent magnet synchronous motor based on self-tuned boundary layer and RBF neural network

Results in Engineering
This study develops a proportional-integral-derivative (PID) control framework synthesizing self-tuning boundary layer sliding mode observers with radial basis function (RBF) neural networks. This approach enables adaptive adjustment of the velocity loop
Guozhong Yao, Junhong Zhou, Yuhan Xiao, Dewen Jia, Zhengjiang Wang   +4 more
doaj   +1 more source

The method of chatter suppression in end milling operation

, 2011
Various methods of chatter suppression have been introduced to control chatter during machining processes. In this research an innovative approach of chatter suppression during end milling operation using ferrite magnet is being proposed.
Mohd, Ahmad Azhari, Hadi, Abdul Qayyum, Amin, A. K. M. Nurul   +2 more
core  

A New Vari-Speed Cutting Scheme for Chatter Suppression

, 2011
From the view of implementation and machine protection, this paper presents a novel scheme of programming spindle-speed variation for regenerative chatter suppression.
Min Zhang, Ming Zhu, Kuan Min Mao
core   +1 more source

Integration of Lattice Structures into the Boring Bars as a Passive Chatter Suppression Technique: Concepualization, Modelling and Simulation

Vibration
The present study concentrates on passive damping technology, in which the damping of vibrations is accomplished by the integration of lattice structures into the boring bar. To complete this process, several steps must be followed.
Ekrem Oezkaya, Kubilay Aslantas, Adem Çiçek, Hüseyin Alp Çetindağ   +3 more
doaj   +1 more source