润滑与密封
潤滑與密封
윤활여밀봉
LUBRICATION ENGINEERING
2014年
1期
68-72
,共5页
吴利杰%肖曙红%雷枝武%罗小百
吳利傑%肖曙紅%雷枝武%囉小百
오리걸%초서홍%뢰지무%라소백
超高速电主轴%空气静压轴承%流固耦合分析%结构优化
超高速電主軸%空氣靜壓軸承%流固耦閤分析%結構優化
초고속전주축%공기정압축승%류고우합분석%결구우화
ultra-high-speed motorized spindle%aerostatic bearings%fluid-solid coupling analysis%optimized structure
借助有限元分析软件ANSYS对具有不同支承结构的超高速微切削空气静压电主轴进行全参数三维实体建模，运用流固耦合的有限元方法分析电主轴的各种结构方案，并进行承载特性分析对比，优选出空气静压电主轴的支承结构。结果表明，前支承对电主轴的承载影响最大，主轴悬跨段的设置对提高承载性能的贡献较小，为加强主轴刚性，可以选择主轴前段采用多排孔轴承的支承结构。
藉助有限元分析軟件ANSYS對具有不同支承結構的超高速微切削空氣靜壓電主軸進行全參數三維實體建模，運用流固耦閤的有限元方法分析電主軸的各種結構方案，併進行承載特性分析對比，優選齣空氣靜壓電主軸的支承結構。結果錶明，前支承對電主軸的承載影響最大，主軸懸跨段的設置對提高承載性能的貢獻較小，為加彊主軸剛性，可以選擇主軸前段採用多排孔軸承的支承結構。
차조유한원분석연건ANSYS대구유불동지승결구적초고속미절삭공기정압전주축진행전삼수삼유실체건모，운용류고우합적유한원방법분석전주축적각충결구방안，병진행승재특성분석대비，우선출공기정압전주축적지승결구。결과표명，전지승대전주축적승재영향최대，주축현과단적설치대제고승재성능적공헌교소，위가강주축강성，가이선택주축전단채용다배공축승적지승결구。
With the help of the finite element analysis(FEA)software ANSYS,three-dimensional model of the ultra-high-speed micro-cutting aerostatic motorized spindle based on different support structures was set up.Finite element anal-ysis method of fluid-structure interaction was applied for the analysis of different kinds of structural designs of spindle.The load-bearing characteristics was analyzed and compared in order to obtain optimized support structure of motorized spindle. It is found that the front bearing structure has the greatest effect in the bearing ability of the motorized spindle bearing,the setting of spindle span contributes a little to the bearing ability,in order to strengthen the spindle rigidity,the spindle sup-porting structure of front bearing with multi-hole can be choosen.
