润滑与密封
潤滑與密封
윤활여밀봉
LUBRICATION ENGINEERING
2014年
2期
1-8
,共8页
动静压轴承%深浅油腔%计算流体力学%刚度
動靜壓軸承%深淺油腔%計算流體力學%剛度
동정압축승%심천유강%계산류체역학%강도
hybrid bearing%deep-shallow cavity%computational fluid dynamics(CFD)%stiffness
阐述用于高效精密磨床砂轮主轴的HSDB-R深浅腔动静压轴承的原理；建立基于Navier-Stokes方程的轴承油膜流体力学控制方程，采用基于有限体积法的三维流体力学仿真软件FLUENT分析轴承工作参数和结构参数对轴承承载能力、刚度、温升等性能的影响；对比“一”字和“匡”字2种油腔结构形式对于轴承刚度及温度分布的影响。结果表明：“一”字油腔结构能够提高轴承承载力和刚度，“匡”字油腔结构有助于降低轴承温升。
闡述用于高效精密磨床砂輪主軸的HSDB-R深淺腔動靜壓軸承的原理；建立基于Navier-Stokes方程的軸承油膜流體力學控製方程，採用基于有限體積法的三維流體力學倣真軟件FLUENT分析軸承工作參數和結構參數對軸承承載能力、剛度、溫升等性能的影響；對比“一”字和“劻”字2種油腔結構形式對于軸承剛度及溫度分佈的影響。結果錶明：“一”字油腔結構能夠提高軸承承載力和剛度，“劻”字油腔結構有助于降低軸承溫升。
천술용우고효정밀마상사륜주축적HSDB-R심천강동정압축승적원리；건립기우Navier-Stokes방정적축승유막류체역학공제방정，채용기우유한체적법적삼유류체역학방진연건FLUENT분석축승공작삼수화결구삼수대축승승재능력、강도、온승등성능적영향；대비“일”자화“광”자2충유강결구형식대우축승강도급온도분포적영향。결과표명：“일”자유강결구능구제고축승승재력화강도，“광”자유강결구유조우강저축승온승。
The principle of the HSDB-R hybrid bearing for a high efficiency and precision spindle was described,and the hydrodynamic equations of bearing oil film were established based on Navier-Stokes equations.The effects of bearing structure variables and working parameters on bearing performances,such as stiffness and temperature were analyzed by the three-dimensional hydrodynamic simulation software FLUENT.The stiffness and temperature distribution of the bearings with straight-cavity and turning-cavity was compared.The results show that the straight-cavity bearing provides larger stiff-ness and bearing capability,and the turning-cavity bearing has low bearing temperature rise.
