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本文设计了组合式及嵌入式轴向维切向进气轴颈轴承，将其装配到与１５０Ｎｍ~３／ｈ制氧机配套的中压透平膨胀机上进行试验，实测了不同设计参数下的轴承失稳转速，并分析了影响轴承失稳转速的各种因素。
In this paper, a combination of axial and axial directional intake gas bearings are designed and assembled to a medium pressure turboexpander equipped with a 150 Nm ~ 3 / h oxygen generator for testing. The results of different design parameters Bearing instability speed, and analyzed the factors that affect the bearing speed instability.