非刚性轴承润滑与变形耦合下的轴系校中研究

轴承油膜是影响轴系校中的动态因素之一。在油膜刚度的计算过程中,较多学者采用船级社推荐值,或将轴承考虑为刚性,利用差分法或有限元法对其进行求解。文章对轴承弹性变形与油膜压力进行耦合分析,获得最优小扰动量,得到更符合实际情况的油膜刚度,利用vb.net编写有限元轴系校中软件并对某油船轴系进行校中计算,分析了轴承油膜对轴系校中的影响程度,可为船舶轴系校中计算及检验提供参考。

Research on bearing lubrication and deformation on shafting alignment

In the research of the influence of shafting alignment, rigidity of bearing oil film is one of the dy-namic factors. In the calculation of rigidity of bearing oil film, most researchers used the recommended value of Classification Society or considered the bearings as rigid to solve by the finite difference method or finite element method. In this paper, the coupled analysis of the bearing elastic deformation and pressure of oil film is carred out, The best small disturbance and most realistic rigidity of bearing oil film are ob-tained. The shafting alignment program with Visual Basic is developed and the shafting of a tanker is cal-culated, which could provide reference to the calculation and survey of shaft alignment.