推進軸被金の腐蝕を対象としたキャビテーションの研究
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概要
- 論文の詳細を見る
Recently, many damages by corrosion have occured on tailshaft sleeves of ships built after the War.The corrosion damage is confined to segmental area on sleeve and numbers of these corroded grooving have some relations with propeller blade number.This fact suggestes that these corrosion damages are caused by the vibration of tailshaft or hull excited by propeller.As one of causes of these corrosion damages, we can suppose cavitation errosion grown up by a vibratory hydrodynamic pressure set up in cooling water when a tailshaft or a sterntube vibrates.So as to ascertain this phenomenon, we have tried experimental research using a model with full scale shaft diameter. And we recognized that the cavitation occurs at frequency of about 30〜/s. This experimental results suggestes that the cavitation will grow up in sterntube when a tailshaft vibrates impulsively on actual ship.
- 社団法人日本船舶海洋工学会の論文
- 1958-02-00