Unsupervised Identification Methodology Using Hybrid Entropy for Milling Vibration States under Variable Operating Conditions
WU Yanqing, HU Teng, WANG Xiaohu, MI Liang, YIN Guofu
China Mechanical Engineering . 2026, (7): 1641 -1650 .  DOI: 10.3969/j.issn.1004-132X.2026.07.013