...Dongju Chen; Yupeng Zhao; Kun Sun; Ri Pan; Jinwei Fan Purpose To enhance the performance of hydrostatic bearings, graphene serves as a lubricant additive. Using the high thermal conductivity of graphene, the purpose of this study is to focus on the impact of graphene nano-lubricating oil...

...Dongju Chen; Yueqiang Sun; You Zhao; Kun Sun; Jinwei Fan Purpose The accuracy of the machining process is significantly impacted by the performance of hydrostatic bearings. This paper aims to analyze the influence of micro-textured on the performance of the hydrostatic bearing, and the performance...

... Emerald Publishing Limited 2022 Emerald Publishing Limited Licensed re-use rights only Hydrostatic bearing Critical lubrication Flow characteristics Numerical simulations Temperature rise Yansheng et al. (1980) believed that the introduction of dynamic and hydrostatic hybrid...

...Shiqian Ni; Yanqin Zhang; Zhen Quan Purpose When the clearance oil film of hydrostatic bearing friction pair is in critical lubrication state, the phenomenon of zero flow of local lubricating oil will aggravate the oil film temperature rise, which needs to be solved. Design/methodology/approach...

... results. Findings The results show that, for this structure of hydrostatic bearing, the phenomenon of HOC does not occur until the work speed is more than 10 r/min under any load condition. And it always happens in the total range of load, from 0 to 320 kN, when the speed is over 60 r/min. Moreover...

...Yanqin Zhang; Zhiquan Zhang; Xiangbin Kong; Rui Li; Hui Jiang Purpose The purpose of this paper was to obtain the lubrication characteristics of heavy hydrostatic bearing in heavy equipment manufacturing industry through theoretical analysis and numerical simulation. Design/methodology/approach...

.../approach Models about the lubrication of multi-pocket pivoted pad hydrostatic bearing is established, the complicated relationship of the oil flow rate between the oil pockets are taken into account. Finite differential method is used to solv the model, and theroy of finite element method is use...

...-spool-type are taken into consideration for variable compensation of hydrostatic bearings. Findings – The static stiffness in thrust direction of hydrostatic bearing is determined by the flow continuity equations that are formulated by film flow and compensation flow for each recess, respectively...

... pressure Q, Q¯=flow rate, dimensionless flow rate (dfr) Constant-flow valve (CFV) Hydrostatic bearing Steady flow rate Valves (fluids) Hydrostatics Flow A₁,A₂,A¯₂=piston areas of constant-flow valve (CFV), area ratio A¯₂...