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박윤식(Youn-sik Park),제양규(Yang-Gyu jei),오동엽(Dong-Yup Oh) 한국자동차공학회 1985 오토저널 Vol.7 No.4
An analytical and experimental modal analysis is carried out upon a crankshaft of a four cylinder internal combustion engine for studying dynamic characteristics of the shaft. Influence coefficient method is adopted in modelling the object and the calculated dynamic properties are directly compared with the experimentally obtained torsional and bending natural frequencies and mode shapes. It is found that the test results are well agree with the outputs from analytical model especially in low harmonics.