Research on one new type of aerostatic bearing
The load capacity of aerostatic bearing is limited by the pressure depression usually observed just after the gas supply hole and the supply pressure. The increase of the supply pressure is not helpful to the increase of the load capacity. In order to improve the pressure distribution and the supply pressure, a new type of aerostatic bearing (NT) is designed, which has a tapered chamber at the outlet of the gas supply hole. The Fluent software is used to simulate the working conditions of aerostatic bearings. The simulation results show the simulation method can effectively estimate the pressure depression and the pressure distribution of the NT is remarkably improved compared with the traditional annular orifice type(TT). Its found that the NT can work well under high supply pressures, the characteristics of the Mach number (MN) distribution of the NT are different from those of the TT. A test rig is built. The pressure distributions are tested under high supply pressure and the simulation results of the NT agree well with the experimental results. The simulation method provides a good theoretical method to study aerostatic bearings and the new design will be helpful to the development of high supply pressure, high load capacity aerostatic bearings.
Aerostatic bearing Pressure Mach number
Hechun Yu Wenqi Ma Zuwen Wang
Transportation and Logistics Engineering College, Dalian Maritime University, Dalian, China
国际会议
杭州
英文
643-646
2009-04-08（万方平台首次上网日期，不代表论文的发表时间）