A new method is presented in the paper.The bearing frequency response funct ion FRF is reconstructed by using the data during run-down or run-up process.

• 文中提出利用转子-轴承系统结构数据和机组启停过程中不平衡响应数据重构出轴承座频响函数，利用最小二乘原理获得轴承座动力特性。