公开(公告)号：US12092263B1

公开(公告)日：2024-09-17

申请号：US18410596

申请日：2024-01-11

Applicant: Harbin Engineering University

Inventor： Bin Zhao ,  Huaiqian Guo ,  Wanyou Li ,  Xiqun Lu ,  Xuan Ma ,  Xiujiang Shi ,  Zhijun Shuai ,  Yibin Guo ,  Donghua Wang ,  Hanzhang Xu ,  Hongliang Li ,  Lieyi Dong

IPC: F16N29/00 ,  G01N33/28 ,  G01N33/30

CPC classification number: F16N29/00 ,  G01N33/2888 ,  G01N33/30 ,  F16N2250/00

Abstract: Disclosed is a double-layer oil film lubrication analysis method and system based on a floating bushing. The method includes: determining a roller motion track and a floating bushing motion track according to a roller displacement and a floating bushing displacement; determining, when the motion tracks are closed end to end, minimum values of inner-layer and outer-layer oil film thickness of the floating bushing according to an oil film thickness at each moment; and determining that an abnormality exists in double-layer oil film lubrication when either of the minimum values of the inner-layer and outer-layer oil film thickness of the floating bushing is less than a preset oil film thickness threshold value. According to the present disclosure, more accurate abnormality analysis of double-layer oil film lubrication can be realized.

公开(公告)号：US12117365B1

公开(公告)日：2024-10-15

申请号：US18749607

申请日：2024-06-20

Applicant: Harbin Engineering University

Inventor： Bin Zhao ,  Sheng Lv ,  Wanyou Li ,  Xiqun Lu ,  Xuan Ma ,  Xiujiang Shi ,  Zhijun Shuai ,  Yibin Guo ,  Donghua Wang ,  Hanzhang Xu ,  Hongliang Li ,  Lieyi Dong

IPC: G01M13/04 ,  B63B71/10

CPC classification number: G01M13/04 ,  B63B71/10

Abstract: The present disclosure provides a lubrication analysis method for a stern bearing based on magnetic-hydraulic composite support coupling, including: performing structural deformation analysis on a stern bearing on the basis of a magnetic support analysis result and a lubrication support analysis result to obtain a structural deformation amount, correcting a water film thickness, repeating lubrication and interface characteristics analysis to obtain water film pressures before and after correcting, comparing the water film pressures to determine whether convergence occurs, solving for a load carrying capacity of the stern bearing on the basis of the analysis result if the convergence occurs, determining whether the load carrying capacity is balanced with an input load, and calculating a bearing wear depth of the stern bearing on the basis of a contact force of a micro-convex body if the load carrying capacity is balanced with the input load.