摘要
在横向外磁场作用下,同时伴随磁流体中磁粒子的转动时,推导磁流体薄膜中压力的雷诺方程表达式;研究不同载体类型的磁流体在外磁场作用下,对无限长挤压薄膜轴承和滑动轴承的润滑特性的影响。结果表明:磁场增加磁流体液膜的粘度,提高薄膜承载力,而对轴承的滑动摩擦力影响很小。
Considered the turning action of the magnetic grains and the existence of the exterior horizontal magnetic field, the Renault equation that describing the magnetic fluid thin film＇ s pressure was deduced. The effect of the magnetic fluid of different body type acted by the exterior magnetic field on the lubrication characteristic of squeezing thin film bear- ings and glide bearings was studied. Result shows that magnetic fields increase the viscosity and load force of oil film and it has much less influence to friction force.
出处
《润滑与密封》
CAS
CSCD
北大核心
2007年第1期126-128,131,共4页
Lubrication Engineering
基金
甘肃省自然科学基金(3ZS051-A25-031)
关键词
磁流体
雷诺方程
轴承
润滑
magnetic fluid
Renault equation
bearings
lubrication
