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Influence of the tool edge geometry on specific cutting energy at high-speed cutting
(2007-07-01)
This paper presents specific cutting energy measurements as a function of the cutting speed and tool cutting edge geometry. The experimental work was carried out on a vertical CNC machining center with 7,500 rpm spindle ...
Influence of the tool edge geometry on specific cutting energy at high-speed cutting
(2007-07-01)
This paper presents specific cutting energy measurements as a function of the cutting speed and tool cutting edge geometry. The experimental work was carried out on a vertical CNC machining center with 7,500 rpm spindle ...
Vibration Attenuation in Rotating Machines Using Smart Spring Mechanism
(Hindawi Publishing Corporation, 2014)
Rotor Failure Diagnosis of Induction Motors by Wavelet Transform and Fourier Transform in Function of the Load
(Destech Publications, Inc, 2015-01-01)
This paper presents two diagnostic methods for the online detection of broken bars in induction motors with squirrel-cage type rotors. The wavelet representation of a function is a new technique. Wavelet transform of a ...
Fault detection in rotating machinery by using the modal state observer approach
(2019-10-13)
The existence of cracks in rotating shafts can lead to failures, which imply economic losses and security issues. In the last decades, attention has been devoted to this subject leading to the development of vibration-based ...
Induction machine small-signal impedance for stability studies using dynamic phasor modeling
(IEEE, 2017)
The presence of both electronic-converter-based and rotating-machine-based energy sources in microgrids poses a challenge for its stable operation. Most of the stability studies in microgrids have been focused on the ...
Crack Detection and Dynamic Analysis of a Cracked Rotor with Soft Bearings Using Different Methods of Solution
(2019-01-01)
The ratio of bearing stiffness to the shaft stiffness has a significant impact on the lower frequencies, mode shapes and, consequently, the whirl orbits. Most works studying crack detection methods in rotating systems use ...
SPEED AND ROTATION VARIATIONS IN GATHERING COFFEE MACHINE
(Univ Federal Uberlandia, 2020-01-01)
The mechanized harvesting operation of coffee sweep from ground have a great importance, due the value of the coffee that was lost by the harvest process, as well as the breakdown of the cycle of pests that can damage the ...