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양경현(Yang Kyeong-Hyeon),조철환(Cho Chul-Hwan) 대한기계학회 2001 대한기계학회 춘추학술대회 Vol.2001 No.8
In this paper, we analyzed the characteristic of the broken section for bolts fastening the generator casing. According to the frequency analysis, we grasped the characteristic of the excited force, traced the path of the exciting source so that we examined a factor of transient vibration of the generator casing. By solving troubles of the generator rotor, we reduced the vibration amplitude to the normal condition. Even if it appears transient vibration again, we applied spring washer, more tensile bolt to prevent the fracture.