抄録
A damping device so called 'wire mesh damper' has been used between the ball bearing and the casing to increase the system damping. However, it has some disadvantages; it has moderate level of error from the nominal design, and it is difficult to achieve the designed damping performance, etc. In this study, active magnetic bearing is used as the damping device instead of wire mesh damper, and its vibration suppression effect is evaluated numerically. As a result, it is verified that the usage of the active magnetic bearing enables the turbopump system to suppress the vibration level at the third critical speed efficiently.
