Order component extraction technology for predictive maintenance system in rotary machine Yan Lu, Tian Zhong Lan, Shi Li Yang, Qin Xiao Chen, Jin Wei Bie, Chi Yuan, Zong Min Hu and Xiao Chun Tong Mechanics & Industry, 26 (2025) 11 Published online: 20 March 2025 DOI: 10.1051/meca/2025006