Vibration analysis in JT-60SU design

摘要

A dynamic analysis of the JT-60SU machine at emergency events such as an earthquake has been made. Superconducting coil systems and the vessel are modeled with beam and shell elements with a realistic weight Distribution. It is found that a weight reduced design of TF coils, shear panel connection between two adjacent TF Coils and favorable design of supporting system contribute to a higher eigenmode frequency for vibration.