報告書番号

ET86002

タイトル（和文）

VIBRATIONS OF ROTOR WITH COOLANT PASS HAVINGFREE SURFACE

タイトル（英文）

VIBRATIONS OF ROTOR WITH COOLANT PASS HAVINGFREE SURFACE

概要 （図表や脚注は「報告書全文」に掲載しております）

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概要 （英文）

TO ESTIMATE THE VIBRATION CHARACTERISTICS OFVARIOUS ROTORS CONTAINING LIQUID PASS IN WHICH LIQUID FROM PARTIAL FREE SURFACE,WE INVESTIGATED THE BASIC MODEL ROTOR THAT CONTAINED LIQUID PASS IN WHICH LIQUID AT FREE-SURFACE COULD NOT FLOW IN CIRCULAR DIRECTION. SUPPOSING LIQUID IS INVICID,WE CALCULATED CRITICAL SPEED AND UNSTABLE REGION AND LIQUID FORCE AT OCCURRENCE OF SELF-EXCITED VIBRATION WITH PERTURBATION METHOD. COMPARING TO RESULTS ON FREE SURFACE CONDITION STUDIED BY WOLF,WE ALSO EXPERIMENTED,DISCUSSED THE PROPRIETY OF OUR THEORYAND EXAMINED THE MECHANISM OF SELF-EXCITED VIBRATION. IN ORDER TO ESTIMATE CRITICAL SPEEDS AND SELF-EXCITED VIBRATION RANGES OF FLEXIBLE ROTOR PARTIALLY FILLED WITH LIQUID,WE PROPOSED A COMPUTATION METHOD OF EIGEN VALVE USING TRANSFER MATRICIES WHICH ELEMENTS CONSIST OF A POWER SERIESE. EXPERIMENTAL RESULTS AGREED WELL WITH THE COMPUTED SOLUTION.

報告者

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