The paper investigates the micro asperity contact load ratios and lubrication states of the water-lubricated bearing. New coupled models with consideration of micro-scale asperity contact effects are put forward. The relevance of load ratio with transition of lubrication regimes under multi coupled structural parameters and operating conditions are established. The three-dimensional relationships between typical parameters and contact ratio under typical working conditions have been further studied. Characteristic parameters of lubrication regimes transition under multi coupled factors are investigated. The mechanism of regimes transition is revealed at the micro level. Experimental measurements verify the correctness of the revised model. Researches are beneficial for the definition of micro asperity contact load ratio and lubrication regimes transition for such bearings.

研究了水润滑轴承的微细凹凸接触载荷比和润滑状态。提出了考虑微尺度凹凸接触效应的新耦合模型。建立了在多耦合结构参数和操作条件下负载比与润滑状态转变的相关性。进一步研究了典型工况下典型参数与接触比的三维关系。研究了多耦合因素下润滑状态转变的特征参数。在微观层面揭示了政权转变的机制。实验测量验证了修正模型的正确性。