Lubricating oil film pressure

This paper introduces the resistance network model to calculate the hydrostatic pressure distribution of the oil lubrication film. The effect of geometry and working parameters on the pressure distribution is then analyzed. Among these parameters, the calculation results point out that the radial and axial clearance, as well as the eccentricity of the ring gear, have a significant effect on the hydrostatic pressure distribution.

8p spiritedaway36 28-11-2021 7 0   Download

In this paper, the influence of shaft bearings lubricating oil pressure to the vibration characteristics of diesel generator shafting system is concerned. When the lubricating oil pressure increases, the oil film stiffness increases.

11p wangxinling 23-07-2021 16 0   Download

This paper presents the experimental study of the lubricating oil film pressure of the connecting-rod big end bearing in the special device for the lubricating condition of the connecting-rod big end bearing. A connecting-rod model of photoelastic material is subjected to simulated load as in an engine. The oil film pressure is measured at different positions in the circumferential direction and the mid-section in length by a pressure sensor located on the shaft.

5p cothumenhmong8 03-11-2020 16 1   Download

During the operating, the lubricated oil film pressure of hydrodynamic bearing is varied under the load apply and under the rotation speed. This pressure is one important characteristic when studying the lubrication problem for the bearing. An experimental device and the journal bearing are used to determine the pressure and the temperature of the lubricated oil film. The load is applied on the housing bearing. The journal bearing is subjected to different applied load at different velocities. Lubricant oil is circulatingly supplied via oil supply hole in the housing.

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Load applied to the connecting-rod and the pressure in the lubricant oil film change the stress in the connecting-rod during the operating cycle. This problem is one of the characteristics we need to consider when studying the connecting-rod big end bearing. A specific experimental device and the connecting-rod model of photoelastic material are used to determine the load diagram, measure the oil film pressure, and visualize the state of stress. The connecting-rod is subjected to simulation load as in the engine.

14p angicungduoc5 13-06-2020 15 0   Download

This paper presents a numerical simulation of hydrodynamic journal bearing lubrication by using finite element method to solve Reynolds equation in static load condition. Reynolds boundary condition applied to this research in order to yield oil film pressure distribution at a given oil supply hole position.

6p vineji2711 19-05-2020 19 0   Download

The paper analyzes the effect of geometric parameters on proportion of hydrodynamic and hydrostatic pressure in the oil lubrication film of internal gear motor and pump.

6p viatani2711 14-02-2020 17 0   Download

This paper deals with an experimental study of oil film pressure and temperature responses for journal parameters on EN31 alloy steel journal. The study on journal bearing comes under engineering tribology and as known that small improvement in the field of Tribology leads to better usage of energy.

5p quilen 08-11-2019 16 0   Download

Sliding Contact Bearings 1. Introduction. 2. Classification of Bearings. 3. Types of Sliding Contact Bearings. 4. Hydrodynamic Lubricated Bearings. 5. Assumptions in Hydrodynamic Lubricated Bearings. 6. Important Factors for the Formation of Thick Oil Film. 7. Wedge Film Journal Bearings. 8. Squeeze Film Journal Bearings. 9. Properties of Sliding Contact Bearing Materials. 10. Materials used for Sliding Contact Bearings. 11. Lubricants. 12. Properties of Lubricants. 13. Terms used in Hydrodynamic Journal Bearings. 14. Bearing Characteristic Number and Bearing Modulus for Journal Bearings.

34p tieutaithan 15-11-2010 67 6   Download

Tower reported the results of a series of experiments intended to determine the best methods to lubricate a railroad journal bearing. Working with a partial journal bearing in an oil bath, he noticed and later measured the pressure generated in the oil film. Tower pointed out that without sufficient lubrication, the bearing operates in the boundary lubrication regime, whereas with adequate lubrication the two surfaces are completely separated by an oil film. Petrov [5] also conducted experiments to measure the frictional losses in bearings.

20p medinova 28-10-2010 56 6   Download

CONTENTS CONTENTS 962 C H A P T E R n A Textbook of Machine Design Sliding Contact Bearings 1. Introduction. 2. Classification of Bearings. 3. Types of Sliding Contact Bearings. 4. Hydrodynamic Lubricated Bearings. 5. Assumptions in Hydrodynamic Lubricated Bearings. 6. Important Factors for the Formation of Thick Oil Film. 7. Wedge Film Journal Bearings. 8. Squeeze Film Journal Bearings. 9. Properties of Sliding Contact Bearing Materials. 10. Materials used for Sliding Contact Bearings. 11. Lubricants. 12. Properties of Lubricants. 13. Terms used in Hydrodynamic Journal Bearings. 14.

34p hadalabo 29-09-2010 84 22   Download