Article 12417
Title of the article |
ANALYTICAL MODEL AUTOCORRELATION FUNCTION VIBROACOUSTIC OSCILLATIONS IN DYNAMICAL SYSTEM |
Authors |
Ignatyev Alexander Anatolyevich, doctor of technical sciences, professor, sub-department of automation, control, mechatronics, |
Index UDK |
681.5 |
Abstract |
Background. The cutting process is accompanied vibroacoustic vibrations by a dynamic system of the machine, which have a significant influence on the formation of geometrical parameters of the treated surface (deviation from roundness, waviness, roughness) and physico-mechanical properties of the surface layer (uniformity of structure, hardness). Therefore, an important role is played by the mode selection process, from which depends not only the tool life, but also the quality of processing. On the basis of computation of the autocorrelation function (ACF) vibroacoustic (VA) fluctuations on the elements of the molding subsystem of grinding machine to identify the transfer function to calculate the stability margin of the dynamic system (DS) of the grinding machine. By maximum stability margin DS set suitable cutting mode in terms of processing quality and performance. |
Key words |
vibro-acoustic oscillations, autocorrelation function, transfer function, oscillatory links, metal-cutting machine, dynamical oscillations |
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Дата обновления: 30.01.2019 14:15