Examination of failures of 750 mm Doxford marine engine in service, which occurred in side crankpins of Nos 3 and 4 cylinders, cracks being initiated in recessed fillets; it was concluded that recessed fillets should only be employed with substantial overlap of crankpin and journal, and that use of flexible coupling in center of large crankshaft is of doubtful value; it is noted that failure has arisen only when these crankshafts are subjected to exceptional circumstances. (See also Inst Mar Engrs -- Trans v 72 n 7 July 1960 p 269-88 (discussion) 289-304; Shipbldg and Shipg Rec v 95 n 6 Feb 11 1960 p 180-1)
Some crankshaft failures: investigations, causes and remedies
Motor Ship
Motor Ship ; 40 , n 476
1960
7 pages
Article (Journal)
English
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