机床与液压
機床與液壓
궤상여액압
MACHINE TOOL & HYDRAULICS
2014年
17期
161-163,127
,共4页
胡俊宏%孙振鲁%迟青卓%徐良
鬍俊宏%孫振魯%遲青卓%徐良
호준굉%손진로%지청탁%서량
气浮轴承%计算机仿真%气膜%承载力%有限单元法%可压缩雷诺方程%高精度%润滑
氣浮軸承%計算機倣真%氣膜%承載力%有限單元法%可壓縮雷諾方程%高精度%潤滑
기부축승%계산궤방진%기막%승재력%유한단원법%가압축뢰낙방정%고정도%윤활
Air Bearing%Computer simulation%Air film%Loading capacity%Finite Element Method%Compressible Reynolds E-quation%High precision%Lubrication
对于气浮轴承承载力求解方法,学术界通常采用有限元单元法或有限差分法对建立起来的可压缩Reynolds方程求解。但是可压缩Reynolds方程的边界的条件不易获得,求解非常繁琐、工作量大,且求解精度不高。为此,应用计算流体动力学分析软件FLUENT对气浮轴承进行建模和数值仿真,使求解过程得到了简化,而且精度也得到了改善。此方法可缩短气浮轴承商品化的周期。
對于氣浮軸承承載力求解方法,學術界通常採用有限元單元法或有限差分法對建立起來的可壓縮Reynolds方程求解。但是可壓縮Reynolds方程的邊界的條件不易穫得,求解非常繁瑣、工作量大,且求解精度不高。為此,應用計算流體動力學分析軟件FLUENT對氣浮軸承進行建模和數值倣真,使求解過程得到瞭簡化,而且精度也得到瞭改善。此方法可縮短氣浮軸承商品化的週期。
대우기부축승승재력구해방법,학술계통상채용유한원단원법혹유한차분법대건립기래적가압축Reynolds방정구해。단시가압축Reynolds방정적변계적조건불역획득,구해비상번쇄、공작량대,차구해정도불고。위차,응용계산류체동역학분석연건FLUENT대기부축승진행건모화수치방진,사구해과정득도료간화,이차정도야득도료개선。차방법가축단기부축승상품화적주기。
As to the solution method of load capacity of air bearing,Finite Element Method (FEM)or Finite Differential Method (FDM)are used usualy in the academic domain to solve the established compressible Reynolds equation. But the condition of boundary of the compressible Reynolds equation was not easy to find,the solution was very fussy and the amount of work was large. Even the precision of the solution was not high. Therefor,by using Computational Fluid Dynamic (CFD)analysis software FLUENT,the air bearing was modelded and simuylated numerically. The solution process is not only simplified,but also the precision is improved. This method will lessen the period of commercialization of air bearing.