Partager

Document IIF

Analyse des paliers lisses dans un compresseur à spirale en tenant compte des déviations et de la dynamique du vilebrequin.

Analysis of journal bearings in a scroll compressor considering deflections and dynamics of the crankshaft.

Auteurs : AHN S., CHOI S., RHIM Y. C.

Type d'article : Article, Article de la RIF

Résumé

Engineers are trying to design a scroll compressor which covers wide range of speed to realize an efficient and compact air-conditioning system. Recently, a motor with inverter technology has been driven from 15 to 150?Hz in an advanced scroll compressor. The importance of design for a crankshaft and journal bearings has been emphasized in this trend because the lubrication characteristics are greatly affected by the operating speed. In this study, the lubrication characteristics of journal bearings in a scroll compressor are analyzed considering deflections and dynamics of a crankshaft. The Reynolds equation is solved using the finite difference method to determine the pressure distribution of journal bearings, and then deflections of the crankshaft and its four-degrees-of-freedom motions are calculated by the finite element method and the fourth-order Runge–Kutta method, respectively. It is confirmed from the results that the crankshaft deflections significantly affect the minimum clearance of journal bearings.

Documents disponibles

Format PDF

Pages : 205-212

Disponible

  • Prix public

    20 €

  • Prix membre*

    Gratuit

* meilleur tarif applicable selon le type d'adhésion (voir le détail des avantages des adhésions individuelles et collectives)

Détails

  • Titre original : Analysis of journal bearings in a scroll compressor considering deflections and dynamics of the crankshaft.
  • Identifiant de la fiche : 30024684
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 93
  • Date d'édition : 09/2018
  • DOI : http://dx.doi.org/10.1016/j.ijrefrig.2018.07.006

Liens


Voir d'autres articles du même numéro (25)
Voir la source

Indexation