COLLECTIONS

Documents published in Scipedia

• Advanced Numerical Models for Design and Optimization of Thrust Bearing Hydrodynamic Characteristics

  A. Olga, Y. Boldyrev, A. Borovkov, I. Voynov

  WCCM-ECCOMAS2020.

  
  

  Abstract

  Efficiency of hydrodynamic thrust bearings used in a wide range of power machines is characterized by including the load capacity of an oil wedge, which has nonlinear dependence on gap size. In this study we consider the different types of lubricant layer microgeometry profiling with the aim of optimal design of the hydrodynamic bearing characteristics for ensuring the maximum load capacity using advanced numerical models and methods. We enlarge the results of significant research works of J.W. Rayleigh and S. Y. Maday in relation to the hydrodynamic sector self-aligning acting thrust bearings based on advanced numerical methods. Different geometrical parameters which define profile curvature were used as optimization variables. The maximum of pressure integral over the lubricant layer surface as objective function was used. Hydrodynamic problems using Navier-Stocks equations were solved based on numerical approach and commercial CFD code ANSYS/CFX using the St.Petersburg Polytechnic Supercomputer Center.

  Abstract
  Efficiency of hydrodynamic thrust bearings used in a wide range of power machines is characterized by including the load capacity of an oil wedge, which has nonlinear dependence [...]

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• Variational problem for hydrogenerator thrust bearing

  O. Antonova, A. Borovkov, A. Olga

  (2017). Materials Physics and Mechanics 34 (1), 97-102, 2017

  
  

  Abstract

  Reversible and irreversible heavy loaded thrust bearings of a hydrogenerator are investigated. The problem of oil wedge microgeometry profiling for load capacity optimization is considered. The analysis is based on optimization methods using variational calculus. The results of oil wedge microgeometry optimization for reversible and irreversible thrust bearings are presented.

  Abstract
  Reversible and irreversible heavy loaded thrust bearings of a hydrogenerator are investigated. The problem of oil wedge microgeometry profiling for load capacity optimization [...]

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Articles (Documents not available in Scipedia)

• К ПРОБЛЕМЕ ПОСТРОЕНИЯ ОПТИМАЛЬНЫХ ТЕХНОЛОГИЧНЫХ ПРОФИЛЕЙ ПОДШИПНИКОВ СКОЛЬЖЕНИЯ

  ОВ Антонова, ЮЯ Болдырев, АИ Боровков, ИБ Войнов

  Проблемы машиностроения и автоматизации, 18-23, 2020

• Optimum design of hydrodynamic thrust bearings with rayleigh's pocket profiles

  OV Antonova, AI Borovkov, YY Boldyrev, IB Voynov

  COUPLED VIII: proceedings of the VIII International Conference on …, 2019

• On the development of a design procedure of the hydrodynamic characteristics of hydrogenerator thrust bearings taking into account the heat exchange

  OV Antonova, YY Boldyrev, AI Borovkov, IB Voinov

  Journal of Machinery Manufacture and Reliability 46 (6), 572-578, 2017