논문 상세보기
pp.183-184
Coal-fired thermal power generation was a very important power source in Korea. Therefore improvement of seismic reliability of the coal-fired thermal power plants is required, because occurrence of very large earthquakes is expected in Korea. Boilers of coal-fired power plants are usually suspended from the upper end of support structures in order to allow thermal expansion of the boilers, so boilers easily sway during earthquakes. In order to suppress the vibration, stoppers made of steel are generally installed between boilers and their support structures. Although stoppers made of steel are effective for vibration suppression, further countermeasure for earthquakes having long duration and many after shocks is required. This study has developed a hybrid damper for vibration and seismic control of coal-fired power plant boiler. The hybrid damper consists of an oil damper and a friction damper connected in series.
