轴承
軸承
축승
Bearing
2015年
11期
20-22,56
,共4页
自润滑关节轴承%装配%合套挤压%有限元分析
自潤滑關節軸承%裝配%閤套擠壓%有限元分析
자윤활관절축승%장배%합투제압%유한원분석
self -lubricating spherical plain bearing%assembly%fitting extrusion%finite element analysis
利用 Abaqus 软件对大型自润滑关节轴承的成形过程进行了数值模拟。通过分析挤压过程中轴承的等效应力分布、等效塑性应变分布、挤压力变化曲线及衬垫受到的接触应力分布曲线等，研究自润滑关节轴承的装配成形机理。结果表明：相对第2次挤压成形，第1次挤压成形过程中挤压力变化相对平稳，等效应力和等效塑性应变也相对较小；第1次挤压完成后，衬垫腰部受到的接触应力最大，第2次挤压完成后，衬垫两端受到的接触应力较大。
利用 Abaqus 軟件對大型自潤滑關節軸承的成形過程進行瞭數值模擬。通過分析擠壓過程中軸承的等效應力分佈、等效塑性應變分佈、擠壓力變化麯線及襯墊受到的接觸應力分佈麯線等，研究自潤滑關節軸承的裝配成形機理。結果錶明：相對第2次擠壓成形，第1次擠壓成形過程中擠壓力變化相對平穩，等效應力和等效塑性應變也相對較小；第1次擠壓完成後，襯墊腰部受到的接觸應力最大，第2次擠壓完成後，襯墊兩耑受到的接觸應力較大。
이용 Abaqus 연건대대형자윤활관절축승적성형과정진행료수치모의。통과분석제압과정중축승적등효응력분포、등효소성응변분포、제압력변화곡선급츤점수도적접촉응력분포곡선등，연구자윤활관절축승적장배성형궤리。결과표명：상대제2차제압성형，제1차제압성형과정중제압력변화상대평은，등효응력화등효소성응변야상대교소；제1차제압완성후，츤점요부수도적접촉응력최대，제2차제압완성후，츤점량단수도적접촉응력교대。
The forming process for large self -lubricating spherical plain bearings is numerically simulated by using software Abaqus.The assembly forming mechanism for self -lubricating spherical plain bearings is studied by analyzing equivalent stress distribution,equivalent plastic strain distribution,variable curve for extrusion force and contact pres-sure distribution curves of liner for bearings during extrusion process.The result show that compared to second extrusion forming,the change of extrusion force is more stable and the equivalent stress and plastic strain is smaller during first extrusion process.After first extrusion,the waist of liner has the biggest contact pressure while both ends of liner have bigger contact pressure after second extrusion.
