Stress Assessment of Crankshaft of Low Speed Diesel Engines Considering Residual Stress in Manufacturing Process
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Accession number;07A0210544
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| Title;Stress Assessment of Crankshaft of Low Speed Diesel Engines Considering Residual Stress in Manufacturing Process |
| Author;
OTSUKI EIJI
(Kobe Steel, Ltd., JPN)
KAJIHARA SHUHEI
(Mitsui Engineering & Shipbuilding Co., Ltd., JPN)
HANAWA YOJI
(Kobe Steel, Ltd., JPN)
HAMADA TAKESHI
(Kobe Steel, Ltd., JPN)
KUBO HARUYOSHI
(Kobe Steel, Ltd., JPN)
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Journal Title;Marine Engineering
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Journal Code:S0651A
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ISSN:1346-1427
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VOL.42;NO.2;PAGE.295-300,V(2007)
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| Figure&Table&Reference;FIG.14, TBL.7, REF.7 |
| Pub. Country;Japan |
| Language;Japanese |
| Abstract;Higher output and compactness is becoming the norm for low speed diesel engines. The gripping torque of shrink-fit on semi-build up crankshaft can be raised by taking advantage of its high yield point in new cast steel "Throw Grade 5". Instead, large oversized shrink-fit might induce higher residual stress in the pin fillet or overheating might cause decrease in the cold rolling effect in the pin fillet for short stroke crankshaft. In this paper, a shrink-fit test of the actual crankthrow was carried out for a large oversized shrink-fit. It was accomplished without any decrease of the cold rolling effect in pin fillet Finally, in order to confirm to safety stress analysis on the crankshaft of a large engine with Throw Grade 5 was made taking the residual stress due to shrink-fit and cold rolling into account. (author abst.) |
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