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Reliability of a Hydrodynamic Journal Bearing

Communication avec acte
Auteur
DIOP, Khadim
244482 Laboratoire Angevin de Recherche en Ingénierie des Systèmes [LARIS]
CHARKI, Abdérafi
244482 Laboratoire Angevin de Recherche en Ingénierie des Systèmes [LARIS]
ccCHAMPMARTIN, Stephane
211916 Laboratoire Angevin de Mécanique, Procédés et InnovAtion [LAMPA]
AMBARI, Abdelhak

URI
http://hdl.handle.net/10985/10285
DOI
10.4028/www.scientific.net/AMM.789-790.342
Date
2015

Résumé

Journal fluid bearings are widely used in industry due to their static and dynamic behavior and their very low coefficient of friction. The technical requirements to improve the new technologies design are increasingly focused on the indicators of dependability of systems and machines. Then, it is necessary to develop a methodology to study the reliability of bearings in order to improve and to evaluate their design quality. Few works are referenced in literature concerning the estimation of the reliability of fluid journal bearings. This paper deals with a methodology to study the failure probability of a hydrodynamic journal bearing. An analytical approach is proposed to calculate static characteristics in using the Reynolds equation. The commonly methods used in structural reliability such as FORM (First Order Reliability Method), SORM (Second Order Reliability Method) and Monte Carlo are developed to estimate the failure probability. The function of performance bounding two domains (domain of safety and domain of failure) is estimated for several geometrical configurations of a hydrodynamic journal bearing (long journal bearings with the hypotheses of Sommerfeld, Gümbel and Reynolds, and a short journal bearing with the hypothesis of Gümbel).

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  • Laboratoire Angevin de Mécanique, Procédés et InnovAtion (LAMPA)

Documents liés

Visualiser des documents liés par titre, auteur, créateur et sujet.

  • Reliability of a hydrostatic bearing 
    Article dans une revue avec comité de lecture
    CHARKI, Abdérafi; DIOP, Khadim; ccCHAMPMARTIN, Stephane; AMBARI, Abdelhak (American Society of Mechanical Engineers, 2013)
    This paper presents a methodology for evaluating the failure probability of fluid bearings, which are sensitive components for the design of machine rotors, mechatronic systems, and high precision metrology. The static and ...
  • Failure probability evaluation of a hydrodynamic journal bearing 
    Communication avec acte
    DIOP, Khadim; CHARKI, Abdérafi; ccCHAMPMARTIN, Stephane; AMBARI, Abdelhak (2015)
    Journal fluid bearings are widely used in industry due to their static and dynamic behavior and their very low coefficient of friction. The technical requirements to improve the new technologies design are increasingly ...
  • Reliability of a Hydrodynamic Journal Bearing 
    Article dans une revue avec comité de lecture
    DIOP, Khadim; CHARKI, Abdérafi; ccCHAMPMARTIN, Stephane; AMBARI, Abdelhak (Trans Tech Publications, 2015)
    Journal fluid bearings are widely used in industry due to their static and dynamic behavior and their very low coefficient of friction. The technical requirements to improve the new technologies design are increasingly ...
  • Numerical simulation and experimental study of thrust air bearings with multiple orifices 
    Article dans une revue avec comité de lecture
    CHARKI, Abdérafi; DIOP, Khadim; ccCHAMPMARTIN, Stephane; AMBARI, Abdelhak (Elsevier, 2013)
    The objective of this paper is to provide a numerical simulation and an experimental study in order to assess stiffness and damping characteristics of thrust air bearings with multiple orifices. Finite element modeling is ...
  • Reliability for fluid bearings design 
    Communication avec acte
    DIOP, Khadim; CHARKI, Abdérafi; ccCHAMPMARTIN, Stephane; AMBARI, Abdelhak (ISSAT, 2013)
    This paper presents a new methodology for evaluating the failure probability of fluid bearings which are sensitive components for the design of machine rotors, mechatronic systems and high precision metrology. The static ...

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