Study on Early Warning Method of Cylinder Block's Off-Center Position and Swing Failure for 50 MW Steam TurbineJiakui Shi, Kun Yao, Junfeng Fu, Guoteng Ju, Fengjun Li and Jie WanJNWPU, 38 6 (2020) 1308-1315DOI: https://doi.org/10.1051/jnwpu/20203861308