Results 221 to 230 of about 12,237 (275)

Measuring the Operating Condition of Induction Motor Using High-Sensitivity Magnetic Sensor. [PDF]

Sensors (Basel)
Kobayashi A, Nakamura K, Ono T.
europepmc   +1 more source

Convolutional Neural Networks for Raw Signal Classification in CNC Turning Process Monitoring. [PDF]

Sensors (Basel)
Stathatos E, Tzimas E, Benardos P, Vosniakos GC.   +3 more
europepmc   +1 more source

Challenges and Opportunities of the Human-Centered Design Approach: Case Study Development of an Assistive Device for the Navigation of Persons With Visual Impairment. [PDF]

JMIR Rehabil Assist Technol
Chavarria MA, Ortiz-Escobar LM, Bacca-Cortes B, Romero-Cano V, Villota I, Muñoz Peña JK, Londoño Sánchez JR, Campo O, Suter S, Cabrera-López JJ, Sanchez Patiño MF, Caicedo-Bravo EF, Stein M, Hurst S, Schönenberger K, Rivas Velarde M.   +15 more
europepmc   +1 more source

Human Contributions to Safety Data Testbed Flight Simulation Study: Data Methods, Processing, and Quality. [PDF]

Sci Data
Fettrow T, Stephens C, Prinzel L, Holbrook J, Ballard K, Bastami S, Stewart M, Kiggins D.   +7 more
europepmc   +1 more source

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Comparison of classifiers for chatter detection

2013 21st Signal Processing and Communications Applications Conference (SIU), 2013
Unstable machine cutting causes chatter and reduces quality of the production. Therefore it must be detected. Several techniques have been presented for this reason. The aim of this study is to determine the data, features and classifiers which fit on chatter detection.
Tuğci, Recep, Çelen, V. Burak A., Özbayoğlu, Ahmet Murat   +2 more
openaire   +2 more sources

An adaptive grinding chatter detection method considering the chatter frequency shift characteristic

Mechanical Systems and Signal Processing, 2020
Abstract At present the majority of the research works on machining chatter detection are based on energy level monitoring of certain chatter frequencies which are premised to be invariant. However, chatter frequencies are very complicated with multi-frequency/frequency band, time-variant characteristics and are also affected by many factors in the ...
Yao Liu, Xiufeng Wang, Jing Lin, Xianguang Kong   +3 more
openaire   +1 more source

Detection and Suppression of Drilling Chatter

Journal of Dynamic Systems, Measurement, and Control, 1994
The paper presents a simple but effective method to detect and suppress chatter in drilling operations. Unlike conventional approaches, complex cutting dynamics in drilling operations do not need to model and analyze in this new approach. Chatter is detected when a large thrust force or torque variation is observed.
Tarng, Y.S., Li, T.C.
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Chatter detection by monitoring spindle drive current

The International Journal of Advanced Manufacturing Technology, 1997
The purpose of this work is to investigate a new method for detecting chatter in milling. In this method, the spindle drive current signal of a vertical milling machine is used for monitoring process instability. Both simulations and experimental work are conducted. Results show that current signals can transmit chatter frequencies reliably.
E. Soliman, F. Ismail
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Detection of the onset of chatter vibration

Journal of Sound and Vibration, 1986
In a flexible manufacturing system or a fully automated machining system, the computer control system of the machine tools must be able to recognize and control the cutting states, particularly the unwanted ones. Chatter vibration being one of them, its onset needs to be detected.
Rahman, M., Ito, Y.
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Chatter detection in turning using persistent homology

Mechanical Systems and Signal Processing, 2016
Abstract This paper describes a new approach for ascertaining the stability of stochastic dynamical systems in their parameter space by examining their time series using topological data analysis (TDA). We illustrate the approach using a nonlinear delayed model that describes the tool oscillations due to self-excited vibrations in turning.
Firas A. Khasawneh, Elizabeth Munch
openaire   +1 more source