润滑与密封
潤滑與密封
윤활여밀봉
LUBRICATION ENGINEERING
2014年
1期
55-58,63
,共5页
柏庄%孙淑凤%孙立佳%孙郁%任小坤%王立
柏莊%孫淑鳳%孫立佳%孫鬱%任小坤%王立
백장%손숙봉%손립가%손욱%임소곤%왕립
螺旋槽%气体轴承%压力场%承载力
螺鏇槽%氣體軸承%壓力場%承載力
라선조%기체축승%압력장%승재력
spiral groove%gas bearing%pressure fields%load capacity
运用Fluent流体计算软件，求解螺旋槽止推气体轴承气膜压力分布，将计算得到的承载力与文献结果进行比较，验证计算方法的正确性。分析螺旋槽槽数、螺旋角、槽深、槽长比及槽宽比对轴承承载力的影响。结果表明：在槽区气体因受到压缩存在高压区并因此形成承载力；随着槽数的增加承载力逐渐增大并趋于定值；而对于螺旋角、槽深、槽长比和槽宽比，均存在最佳值使承载力最大。
運用Fluent流體計算軟件，求解螺鏇槽止推氣體軸承氣膜壓力分佈，將計算得到的承載力與文獻結果進行比較，驗證計算方法的正確性。分析螺鏇槽槽數、螺鏇角、槽深、槽長比及槽寬比對軸承承載力的影響。結果錶明：在槽區氣體因受到壓縮存在高壓區併因此形成承載力；隨著槽數的增加承載力逐漸增大併趨于定值；而對于螺鏇角、槽深、槽長比和槽寬比，均存在最佳值使承載力最大。
운용Fluent류체계산연건，구해라선조지추기체축승기막압력분포，장계산득도적승재력여문헌결과진행비교，험증계산방법적정학성。분석라선조조수、라선각、조심、조장비급조관비대축승승재력적영향。결과표명：재조구기체인수도압축존재고압구병인차형성승재력；수착조수적증가승재력축점증대병추우정치；이대우라선각、조심、조장비화조관비，균존재최가치사승재력최대。
The distribution of air film pressure fields was solved by using computational fluid dynamics software,and the simulation method proposed was validated by comparison of the calculation data of loading force with published results.The effects of the number of grooves,the spiral angle,the groove depth,the ratio of groove length and width on the loading force were investigated.The results indicate that a high pressure area is observed as the gas flowing through the groove is com-pressed,which eventually forms the loading force.The loading force is increased gradually and tends to a constant value with the number of grooves increased,and there is an optimum value for the spiral angle,the groove depth,the ratio of groove length and width to make the loading force the maximum.
