Impact Analysis of Worn Surface Morphology on Adaptive Friction Characteristics of the Slipper Pair in Hydraulic Pump

Liu, Siyuan; Yu, Chunsong; Ai, Chao; Zhang, Weizhe; Li, Ziang; Zhang, Yongqiang; Jiang, Wanlu

doi:10.3390/mi14030682

Cited by 3 publications

(4 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…An unconventional arrangement of load-bearing chambers on the working surface of a hydrostatic bearing is proposed. The above analysis of the influence of design parameters on the static characteristics of a hydrostatic bearing was not considered in [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16]. The results allow for a more rational design of hydrostatic bearings and show the possibility of their use in aircraft fuel pumps.…”

Section: Discussion Of Results Of Investigating the Static Characteri...mentioning

confidence: 99%

“…where Q is the flow rate of the working fluid; ρ -density of the working fluid; C -heat capacity of the working fluid; N C -total power loss due to friction and lubricant pumping. The flow rate of the working fluid was determined by formula (7).…”

Section: The Study Materials and Methodsmentioning

confidence: 99%

“…This would make it possible to determine the dynamic characteristics of the bearing more accurately. Study [7] examines the influence of the morphology of a worn surface on the adaptive friction characteristics of a sliding pair in a hydraulic pump. The hydraulic pump hydrostatic bearing shoe pair has better friction reduction and anti-wear ability than ordinary sliding friction pair.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

“…In the literature [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15], there is no information on the study of the influence of the circumferential arrangement of load-bearing chambers on the working surface of a bearing on its load-bearing capacity and flow of working fluid. The influence of changes in the temperature of the working fluid at different positions of the load-bearing chambers in the bearing on its load-bearing capacity and fluid flow has also not been considered.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

See 3 more Smart Citations

Identifying the influence of design parameters of a hydrostatic bearing in an aircraft fuel pump on its static characteristics

Nazin

2023

EEJET

View full text Add to dashboard Cite

The object of this study is hydrostatic processes in the sliding bearings of gear-type aviation fuel pumps. The problem of the influence of the design parameters of the fuel pump bearing on its static characteristics was solved. Load-bearing capacity, lubricant consumption, and operating temperature conditions were considered as static characteristics. The determination of these characteristics was based on the pressure distribution function in the working fluid layer. An option was adopted with two load-bearing chambers located on the working surface of the hydrostatic bearing. Three options for the circumferential arrangement of chambers relative to the line of action of the external load were studied. A quantitative assessment of the effect of increasing the temperature of the working fluid on the consumption of lubricant and bearing capacity is given. It has been established that with an increase in the angle of position of chambers relative to the line of action of the external load, the flow rate of the working fluid in the bearing increases, and its load-bearing capacity decreases. With a clearance in the bearing of 0.0225 mm, with an increase in the angle of the chambers from 30° to 40°, the flow of working fluid through the bearing increases by approximately 1.64 times. When the gap increases to 0.0425 mm and the angle of the chambers changes from 30° to 40°, the flow rate of the working fluid increases by approximately 1.2 times. The load-bearing capacity of the bearing with an increase in the chamber position angle from 30° to 40° decreases with a gap of 0.0225 mm by approximately 1.6 times, and with a gap of 0.0425 mm by approximately 1.93 times. An increase in the temperature of the working fluid leads to a decrease in the load-bearing capacity of the bearing by 2.5 % and an increase in the flow rate of the working fluid in the bearing by 4.6 %. The results allow for more rational design of hydrostatic bearings for fuel gear pumps.

show abstract