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一、前言 对内燃机曲轴轴颈和轴承的磨损与使用寿命的预测,至今仍多以设计者的经验为依据进行估计。作者在对曲轴轴承运行状况的理论和试验研究,以及对曲轴轴颈和轴承的磨损试验研究的基础上,提出了一种在流体动力润滑条件下轴承副磨损的物理模型和计算模型,并给出了预测轴颈和轴承磨损的计算方法,以及轴承副寿命的预测方法,还设计和编制了相应的计算程序。然而,在设计中应用这种计算方法和预测方法时,需要给出计算方程中相
First, the foreword On the crankshaft journal crankshaft and bearing wear and life prediction, still more based on the designer’s experience to estimate. Based on the theoretical and experimental research on crankshaft bearing operating conditions and the wear test of crankshaft journal and bearing, the author presents a physical and computational model of bearing wear under hydrodynamic lubrication and gives A prediction method for calculating the wear of the journal and the bearing, a method for predicting the bearing life, and a corresponding calculation program are also designed and prepared. However, when applying this calculation method and prediction method in the design, it is necessary to give the calculation equation