T∕CSNAME 134-2025 船用柴油机滑动轴承润滑分析方法

T/CSNAME134—2025船用柴油机滑动轴承润滑分析方法Lubricationanalysismethodforslidingbearingsinmarinedieselengine2025-09-05发布2025-12-04实施中国造船工程学会发布I本文件按照GB/T1.1—2020《标准本文件起草单位：哈尔滨工程大学、嘉庚创新实验室、招商局海伟、许春光、卢熙群、率志君、李磊、郭宜斌、王东华1GB/T2889.2-2020滑动轴承术语、定义、分类和符号第2GB/T38068-2019船用高速柴α-αJαrBmβ-βmcplCmE*exmeymεmfoilNfaspNGTH-hbhJmi-k-ηη0j-kbklkJnb-nl-ny-nθ-PaspPJppb2q-mrmT℃℃tsUUJμf-VNWyNJzmyj℃ΔtsθδJEmmδJTmφσmφf-mφfS---φfp--φθ-LoadxNLoadyN5.2分析原理船用柴油机滑动轴承润滑分析方法的计算流程如下，34油膜厚度hJ按公式（1）计算：j7.2弹性变形量计算δJE=ΣrΣθΣZGp(PJ+Pasp)··························································(2)7.3热变形量计算δJT=ΣrΣθΣZGTΔT··································································(3)7.4油膜压力计算7.7轴瓦温度计算kbCpbpb7.9滑油-轴瓦热边界条件计算kJ=kiπdθ···············5?.12微凸体接触压力计算假定接触表面微凸体高度分布概率密度函数为期望等于公式（12）与接触面积Aasp按公式（13）计算：paspE*F2.5··················································Aasp=π2(pβ0σ)2AF2.0(H)············································?.13表面综合粗糙度计算7.14x方向承载力计算Loadx=∫_B2π(pJ+pasp)Rsinθdθd7.15y方向承载力计算Loady=∫_B2π(pJ+pasp)Rcosθdθdz7.16轴承摩擦力与摩擦系数计算ffrc=foil+fasp·····································································(17)7.17油膜粘性摩擦力计算平均油膜剪应力引起的油膜粘性摩擦力按公式ilRdθdz··········································7.18峰元接触摩擦力计算fasp=μaspFasp······································································(19)7.19微凸体的接触摩擦力计算sppaspRdθdz·····························································?.20摩擦系数计算7.2摩擦损失计算6Qfrc=ffrc.(U2__U1)·······························································(22)?.22轴颈运动计算利用轴颈运动方程求解下一个时刻的偏心率，x方向轴颈位移见公式（23?.23轴颈运动计算y方向轴颈位移见公式（247.24粘温方程计算η通过粘温方程求得，见公式（25η=η0e“p__β(T__T0)·······························································a)最小油膜厚度hJ,min；b)油膜压力分布PJ；c)摩擦系数μf；8.2失效评估7A.1以某型柴油机主轴承为例，分析其润滑特性结果如图A.1所示：从分析结果来看，主轴瓦最小油膜厚度最小值发生在接近1