Analysis of vibratory problem which occurred in propulsion units of World War II C4-S-A4 vessels; mode of vibration was longitudinal, in which propeller excited propulsion gears in fore and aft direction, and was resolved by substitution of five-bladed propeller for four-bladed unit; propulsion unit consists of nested, double reduction gear driven by cross compound H-P and L-P turbines, nominally rated 9000 shp at 85 turns.
Eliminating gear wear on c4 vessels
Mar Eng
Marine Engineering ; 64 , n 2 ; p 79-81 + 132B
1959
Article (Journal)
English
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