INFORMATIVE OF EXPERIMENTAL ACOUSTIC EMISSION SIGNALS PARAMETERS IN TECHNOLOGICAL PROCESSES MACHINING COMPOSITE
Journal Title: Вісник Національного Авіаційного Університету - Year 2018, Vol 75, Issue 2
Abstract
Purpose: The aim of this article is the experimental st udy of machining composite speed effect on the acoustic emission energy parameters. Methods: The studies were based on the recording and processing of experimental acoustic emission signals during the composite material machining. The statistical processing of experimental acoustic emission signals with an an alysis of the acoustic radiation energy parameters was made. The analysis of acoustic emission statistical en ergy parameters regularities change and their sensitivity to machining composite sp eed changes was made, as well as a comparison sensitiv ity of acoustic radiation energy and amplitude parameters. Results: Is obtained, that at composite machining speed ascending there is increasing of experimental acoustic em ission signals energy average level and value of its spread. Thus the greatest increasing is watched in acous tic radiation energy aver age level dispersion. Is determined, that the experimental acoustic emission signals statistical energy parameters have not linear nature of ascending. The ascending of experimental acoustic emission signals energy parameters advances ascending their amplitude parameters. Discussion: The experimental researches of acoustic radiation energy parameters at ascending of composite mach ining speed are conducted. The statistical data processing has shown, that a regularity of acoustic radiation signal energy average level ascending, its standard deviation and the dispersions are well described by exponential functions. T hus is shown, that the greatest sensitivity to ascending of composite machining speed there is the experimental acoustic emission signals energy average level dispersion. A comp arison of acoustic emission amplitude and energy parameters has shown, that the percentage incremen t of experimental signals energy average level dispersion advances a percentage increm ent of energy average level and its standard deviation, and as increment of all acoustic radiation statistical am plitude parameters The outcomes of the conducted researches can be used at the decision some prob lems: optimization of machining process parameters; development of methods verification, monitoring and control the technological processes parameters.
Authors and Affiliations
Sergii Filonenko, Oleg Zaritskyi
Keywords
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- EP ID EP510212
- DOI 10.18372/2306-1472.75.13118
- Views 95
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