基于热弹性流体动力润滑理论的内燃机主轴承油槽设计  

Groove Design of ICE Main Bearings Based on Thermoelastohydrodynamic Lubrication Theory

作　　者：王刚志[1,2] 楼小燕[1] 

机构地区：[1]天津科技大学,天津300457 [2]天津大学内燃机燃烧学国家重点实验室,天津300072

出　　处：《拖拉机与农用运输车》2011年第3期87-91,共5页Tractor & Farm Transporter

基　　金：天津市高等学校科技发展基金计划项目(20080412);天津科技大学引进人才科研启动基金项目(20080408)

摘　　要：建立了内燃机(ICE)主轴承热弹性流体动力润滑模型。预开设不同的油槽,计算研究了主轴承油槽的宽度、开设角度和位置对主轴承润滑性能的影响。结果表明,油槽的宽度对主轴承润滑性能有较大的影响,使主轴承处于最佳流体动力润滑状态的最佳油槽宽度只存在于一个较小的范围内,大约在(0.03～0.15)B(B为轴承宽度)之间;油槽开设的角度和位置同样影响主轴承的润滑性能;主轴承适合开设周向油槽,且油槽的角度取0°～90°或270°～90°时主轴承润滑性能较好。A thermoelastohydrodynamic lubrication model of main bearings in internal combustion engines is established.The influences of the groove width,angle and location on lubrication behavior of main bearings are investigated after different kinds of grooves are pre-set.The results show that the width of groove greatly affects the main bearings lubrication behavior.The width of grooves for optimal lubrication performance of main bearings lies between（0.03-0.15）B probably.The angle and location of groove also affect the lubrication behavior of main bearings.The lubrication performance of the main bearings with circumferential grooves is much better when the angle of groove is within 0°-90° or 270°-90°.

关 键 词：主轴承 热弹性流体动力润滑 油槽 润滑性能 

分 类 号：TK421.9[动力工程及工程热物理—动力机械及工程]