Journal Article ロケットエンジン用液体水素ターボポンプの玉軸受の非線形モデリングと軸振動解析による回転非同期成分の考察

大竹, 伸英  ,  井上, 剛志  ,  坂口, 智也  ,  内海, 政春  ,  Otake, Nobuhide  ,  Inoue, Tsuyoshi  ,  Sakagami, Tomoya  ,  Uchiumi, Masaharu

15pp.1 - 8 , 2016-01-09 , 日本航空宇宙学会(JSASS) , The Japan Society for Aeronautical and Space Sciences (JSASS)
This paper investigates the nonlinear modeling of the liquid hydrogen turbopump for rocket engine. The degree of freedom of ball is introduced and its contact/separation from the inner or outer race is considered. The dynamic response of the turbopump shaft in the unsteady condition with fast acceleration which reaches more than third critical speed is numerically investigated, and the occurrence of the asynchronous vibration component is observed, and the characteristic of the asynchronous vibration component is discussed. This result is compared with the experimental result, and it shows the capability of the explanation of occurrence of the specific asynchronous vibration component observed in the experimental data.
Physical characteristics: Original contains color illustrations
形態: カラー図版あり

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