内燃机工程2017，Vol.38Issue(1)：50-55,6.DOI:10.13949/j.cnki.nrjgc.2017.01.009
浮环轴承温度预测模型的仿真及试验验证
Temperature Predication Model of Floating Ring Bearing and Its Experimental Validation
摘要
Abstract
Based on nonlinear dynamic oil-film forces, a more precise temperature prediction model of the floating ring bearings of a turbocharger was presented.In this model, the influences of thermal effect on oil viscosity and bearing deformation were considered, and the influences of pressure flow and shear flow on the ring speed ratio (floating ring speed to rotor spin speed ratio) were also taken into account.The oil return flow temperatures measured from experiments were compared with the simulated results.The analysis results indicate that the errors of the model are in an allowable range, verifying the effectiveness of the model.The relationship between oil temperature and rotor spin speed is nearly linear.The variations of temperature, oil viscosity, ring speed ratio and bearing clearance are in reasonable ranges.And the floating ring bearings work well.This would be theoretical foundations for the future R&D and structural optimization of the floating ring bearings.关键词
内燃机/温度预测/高速/动载/浮环轴承/涡轮增压器Key words
IC engine/temperature prediction/high speed/dynamic load/floating ring bearing/turbocharger分类
能源科技引用本文复制引用
张文静,陈渭,门日秀,李培..浮环轴承温度预测模型的仿真及试验验证[J].内燃机工程,2017,38(1):50-55,6.基金项目
国防科技重点实验室基金项目(9140C330104130C33112) （9140C330104130C33112）
