Results 21 to 30 of about 357 (177)

The Research Status and Progress of Heavy/Large Hydrostatic Thrust Bearing

Advances in Mechanical Engineering, 2014
How to improve the rotation speed of heavy/large CNC vertical lathe, the machining efficiency, and machining precision is one of the key issues which need to be solved urgently.
Xibing Li, Xun Wang, Ming Li, Yunshi Ma, Ying Huang   +4 more
doaj   +1 more source

Design and Optimization of the Surface Texture at the Hydrostatic Bearing and the Spindle for High Precision Machining

Machines, 2022
Hydrostatic bearing spindles are widely applied in high precision grinding and turning machines due to their good dynamic stability and rotational accuracy.
Youyun Shang, Kai Cheng, Hui Ding, Shijin Chen   +3 more
doaj   +1 more source

Enhanced Red-billed Blue Magpie Optimizer for engineering optimization problems. [PDF]

Sci Rep
The design of efficient and robust metaheuristic algorithms remains a fundamental challenge in addressing complex optimization problems, particularly those involving high dimensionality, nonlinearity, and multimodal landscapes where traditional methods ...
Wang H, Xin Z, Qi X, Zhou Q, Liu J, Li Z.   +5 more
europepmc   +2 more sources

Lubrication Performance Comparison of Hydrostatic Thrust Bearing with Different Offset Distances

Journal of Harbin University of Science and Technology, 2021
Taking the hydrostatic thrust bearing having double rectangular cavity multi-oil pad as the research object，the influence of the eccentric load distance on the bearing lubrication performance under high speed and heavy load conditions is discussed and ...
LIU Guang-dong, Shao Jun-peng, Li Tian-yu, Lin Yan-long, Hu Yong-xin, Wang Qi-long   +5 more
doaj   +1 more source

Kugel ball nature: hydrodynamics-mathematics-design

Applications in Engineering Science, 2022
The Kugel fountain, where a sphere sits in a fitted socket fed by a thin film of pressurized water flowing between the sphere and the socket, was treated as a bearing without referring to any mathematical or practical evidence that can support this idea.
Ahmad W.Y. Elescandarany
doaj   +1 more source

MSO: A Modified Snake Optimizer for Engineering Applications. [PDF]

Biomimetics (Basel)
Many complex engineering problems can be formulated as mathematical optimization tasks, for which bio-inspired metaheuristic algorithms have demonstrated outstanding effectiveness.
Wang H, Hu L.
europepmc   +2 more sources

Experimental equipment for measuring physical properties of the annular hydrostatic thrust bearing

EPJ Web of Conferences, 2014
The hydraulic circuit, through which the mineral oil is brought, is an important part of hydrostatic bearings. The annular hydrostatic thrust bearing consists of two sliding plates divided by a layer of mineral oil.
Kozdera Michal, Drábková Sylva, Bojko Marian   +2 more
doaj   +1 more source

Development of rotary table grinding machine for large diameter Si wafers (2nd report: Performance investigation of wheel spindle designed to govern infeed motion)

Nihon Kikai Gakkai ronbunshu, 2017
Si wafer diameter tends to be increased from 300 mm to 450 mm in order to increase semiconductor device productivity. To this end, the authors developed a rotary grinding machine with high stiffness, equipped with water hydrostatic bearings.
Jumpei KUSUYAMA, Ayumu HONDA, Shintaro IWAHASHI, Takayuki KITAJIMA, Akinori YUI, Toshihiro ITO, Xiaodong LU, Alexander H. SLOCUM   +7 more
doaj   +1 more source

Numerical modelling of the flow in the annular multi-recess hydrostatic thrust bearing using CFD methods

EPJ Web of Conferences, 2013
The current research of hydrostatic bearings and hydrostatic slide-ways is far from being over. The topic is constantly evolving, creating new geometries of the sliding bearings, developing new types of friction materials and lubricants.
Drbáková S., Kozdera M.
doaj   +1 more source

Inertia and Couple-Stress Effects in a Curvilinear Thrust Hydrostatic Bearing

International Journal of Applied Mechanics and Engineering, 2017
The flow of a couple-stress lubricant in a clearance of a curvilinear thrust hydrostatic bearing with impermeable walls is considered. The flow in the bearing clearance is considered with inertia forces.
A. Walicka, P. Jurczak, J. Falicki
doaj   +1 more source