日本航空宇宙学会論文集
Online ISSN : 2432-3691
Print ISSN : 1344-6460
ISSN-L : 1344-6460
論文
液体水素ターボポンプ用静圧軸受の動的挙動の数値シミュレーション
吉川 浩行太田 照和
著者情報
ジャーナル フリー

2001 年 49 巻 575 号 p. 407-411

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抄録

In the present paper, the dynamic behavior of a rotor supported by externally pressurized liquid hydrogen bearing is theoretically investigated. The bearing treated in this study has 20 recesses arranged in two rows in a staggered manner and will be used in the liquid hydrogen turbopump of rocket engines for space transport systems. The equations of motion for a rotor are numerically solved using predictor-corrector scheme. The dynamic bearing reaction forces are calculated from the numerical solution of unsteady turbulent Reynolds lubrication equation. The transient responses of hydrostatic bearing under several operating conditions are presented. Furthermore, the journal center trajectories with imbalanced moment are examined theoretically.

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© 2001 The Japan Society for Aeronautical and Space Sciences
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