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Processing of vibro-acoustic signals of precessional planetary transmissions

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dc.contributor.author SLOBODEANIUC, Stanislav
dc.date.accessioned 2023-11-17T10:48:28Z
dc.date.available 2023-11-17T10:48:28Z
dc.date.issued 2023
dc.identifier.citation SLOBODEANIUC, Stanislav. Processing of vibro-acoustic signals of precessional planetary transmissions. In: Journal of Engineering Science. 2022, vol. 30, nr. 3, pp. 16-25. ISSN 2587-3474, eISSN 2587-3482. en_US
dc.identifier.issn 2587-3474
dc.identifier.issn 2587-3482
dc.identifier.uri https://doi.org/10.52326/jes.utm.2023.30(3).02
dc.identifier.uri http://repository.utm.md/handle/5014/24899
dc.description.abstract The operation of working machines is accompanied by the constant occurrence of vibrations and shocks, generated by various constructive, kinematic and dynamic factors. The study of the vibro-acoustic aspect of mechanical transmissions and, in particular, of precessional planetary ones is a primary concern for engineers in the field of machine building technologies. The paper presents the research of precessional planetary transmissions under the vibro-acoustic aspect in the anechoic chamber, which is a room, insulated with sound-absorbing material against external noises and isolated anti-vibration. To process the vibro-acoustic signals received as a result of the measurements, the Fourier harmonic series will be applied, a mathematical function that can be used to find the basic frequencies that make up a wave. The final result is the detection of vibration and noise generating sources, the decoding of signals by means of Fourier series and the advancement of constructive-technological solutions to minimize the vibro-acoustic level. en_US
dc.description.abstract Funcționarea mașinilor de lucru este însoțită de apariţia în permanență a vibraţiilor şi şocurilor, generate de diverși factori constructivi, cinematici și dinamici. Studiul aspectului vibro-acustic al transmisiilor mecanice şi, în deosebi, al celor planetare precesionale este o preocupare primordială pentru inginerii din domeniul tehnologiilor constructoare de maşini. În lucrare se prezintă cercetarea transmisiilor planetare precesionale sub aspect vibro-acustic în camera anecoică, care reprezintă o încăpere, izolată cu material fonoabsorbant împotriva zgomotelor externe şi izolată antivibratoriu. Pentru procesarea semnalelor vibro-acustice primite în urma măsurărilor vor fi aplicate seriile armonice Fourier, funcție matematică ce poate fi folosită pentru a găsi frecvențele de bază, din care este alcătuită o undă. Rezultatul final este depistarea surselor generatoare de vibraţii şi zgomot, descifrarea semnalelor prin intermediul seriilor Fourier şi înaintarea soluţiilor constructiv-tehnologice pentru minimizarea nivelului vibro-acustic. en_US
dc.language.iso en en_US
dc.publisher Technical University of Moldova en_US
dc.relation.ispartofseries Journal of Engineering Science;2023, Vol. 30, Nr. 3
dc.rights Attribution-NonCommercial-NoDerivs 3.0 United States *
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/3.0/us/ *
dc.subject precessional planetary transmissions en_US
dc.subject vibroacoustic signals en_US
dc.subject transducers en_US
dc.subject anechoic chambers en_US
dc.subject harmonic series en_US
dc.subject transmisii planetare precesionale en_US
dc.subject semnale vibro-acustice en_US
dc.subject traductoare en_US
dc.subject camere anecoide en_US
dc.subject serii armonice en_US
dc.title Processing of vibro-acoustic signals of precessional planetary transmissions en_US
dc.title.alternative Procesarea semnalelor vibro-acustice ale transmisiilor planetare precesionale en_US
dc.type Article en_US


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