标题：Dynamic parameters identification of journal bearing with an unbalance-response method
作者：Ma, Jin-Kui ;Lu, Chang-Hou
作者机构：[Ma, Jin-Kui ;Lu, Chang-Hou ] Key Laboratory of High Efficiency and Clean Mechanical Manufacture, School of Mechanical Engineering, Shandong Universit 更多
来源：Journal of Harbin Institute of Technology (New Series)
关键词：Journal bearing; Parameter identification; Unbalance response
摘要：Based on the unbalance response of journal bearings, a dynamic parameter identification model is formulated. Some additional masses attached to the rotor are taken as the applied rotation exciting load of a rotor-bearing system. By extracting the fundamental frequency of the unbalance displacement responses which are processed with harmonic wavelet filtering, the oil-film parameters including the stiffness and damping coefficients can be readily identified by two experiments at the same rotating speed. Experiments indicate that the proposed method has a high identification precision.