This text made FEM calculation and analysis for rotor disk of heavy blower in a plant, and found that the disk can be reused safely again after the arc grooves along outside of blade being repaired.

• 对某发电厂大型鼓风机转子轮盘强度进行了有限元计算与分析，确认了转子轮盘在出现沿叶片外弧的弧形沟槽后，略加修复仍可安全使用。