Research on effect of anti-vibration bars on dynamic characteristic of U-tubes in steam generator

摘要

The fluid-solid coupling dynamic characteristics of U-tubes in steam generator is numerical simulated by using ANSYS parametric design language, and the effect of anti-vibration bars on natural frequency of U-tubes is emphatically considered. The natural vibration characteristic of U-tubes in air and in water is compared, and the semi-empirical formula is presented based on the numerical simulation results.