IRTUM – Institutional Repository of the Technical University of Moldova

Browsing Articole ştiinţifice by Subject "vibrations"

Browsing Articole ştiinţifice by Subject "vibrations"

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  • Aspecte privind aprecierea zgomotului și vibraţiilor în transmisiile mecanice 
    SLOBODEANIUC, Stanislav (Agentia de Stat pentru Proprietatea Intelectuala a Republicii Moldova (AGEPI), 2023)
    The problem of noise and vibration is very popular among mechanical constructions, and especially in mechanical constructions inside which different types of movements occur in order to produce a necessary mechanical work. ...
  • Dynamic model elaboration for the planetary-precessional gear reducer against vibration 
    DULGHERU, Valeriu; MALCOCI, Iulian (EDP Sciences, 2018)
    The purpose of modern-day machines in general and gear-box in particular is to carry out needs-based on maintenance, good working conditions and to minimize the repair and other servicing downtimes and disfunctionalities. ...
  • Lattice vibrations in CuIn1−xGaxSe2 crystals 
    SYRBU, N. N.; BOGDANASH, M.; TEZLEVAN, V. E.; MUSHCUTARIU, I. (Elservier, 1997)
    Infrared reflectivity spectra of CuInSe2, CuGaSe2 and CuIn1−xGaxSe2 solid solutions have been investigated for the polarizations E|c and E⊥c. Reflectivity spectrum contours are calculated and phonon parameters and dielectric ...
  • Precessional gear-box research regarding vibration activity behaviour 
    MALCOCI, I.; TRIFAN, N.; CIOBANU, R. (IOP Publishing, 2020)
    An ideal dynamic system in general and precessional transmissions in particular should not generate any vibration, because vibration is equal with loss of energy and bigger sound level emission. In our previously research ...
  • Some aspects regarding planetary precessional transmissions dynamics 
    BOSTAN, I.; DULGHERU, V.; MALCOCI, I. (IOP Publishing, 2021)
    A mechanical system theoretically should not generate any vibrations and noise to be considered dynamically an ideal system, because vibrations mean a loss of energy. In planetary precessional reducers vibration can appear ...
  • Vibroacoustical diagnosis of planetary precessional kinematical transmission 
    MALCOCI, Iu.; BODNARIUC, I. (IOP Publishing, 2016)
    An ideal dynamical system should not generate any vibrations, because vibrations mean a loss of energy. Vibration in planetary precessional gear box occurs at bearings, gear wheels, misaligned shafts, imbalance rotating ...
  • Vibroacoustical Diagnosis of Planetary Precessional Kinematical Transmission (Part 1) 
    MALCOCI, Iulian; BODNARIUC, Ion (Trans Tech Publications Ltd, 2015)
    An ideal dynamical system should not generate any vibrations, because vibrations mean a loss of energy. Vibration in planetary precessional gear box occurs at bearings, gear wheels, misaligned shafts, imbalance rotating ...

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