轴承
軸承
축승
BEARING
2014年
3期
10-15
,共6页
轴箱轴承%显式动力学%ABAQUS%载荷分布%接触应力
軸箱軸承%顯式動力學%ABAQUS%載荷分佈%接觸應力
축상축승%현식동역학%ABAQUS%재하분포%접촉응력
axle box bearing%explicit dynamics%ABAQUS%load distribution%contact stress
以列车轴箱轴承为研究对象,在给定的使用工况下推导出其所承受的径向载荷,针对不同等级轮轴转速,利用Newton-Rampson法求解出轴承内部的载荷分布规律,并根据Hertz接触理论给出了内、外滚道接触应力的理论解,讨论了转速变化对接触应力的影响,最后利用ABAQUS-explicit对简化轴承模型的动力学特性进行了求解,相关结果与实际工况基本吻合。
以列車軸箱軸承為研究對象,在給定的使用工況下推導齣其所承受的徑嚮載荷,針對不同等級輪軸轉速,利用Newton-Rampson法求解齣軸承內部的載荷分佈規律,併根據Hertz接觸理論給齣瞭內、外滾道接觸應力的理論解,討論瞭轉速變化對接觸應力的影響,最後利用ABAQUS-explicit對簡化軸承模型的動力學特性進行瞭求解,相關結果與實際工況基本吻閤。
이열차축상축승위연구대상,재급정적사용공황하추도출기소승수적경향재하,침대불동등급륜축전속,이용Newton-Rampson법구해출축승내부적재하분포규률,병근거Hertz접촉이론급출료내、외곤도접촉응력적이론해,토론료전속변화대접촉응력적영향,최후이용ABAQUS-explicit대간화축승모형적동역학특성진행료구해,상관결과여실제공황기본문합。
Focusing on the train axle box bearings,the formulas are derived for calculating radial load of the bearings under the given working condition.The internal load distribution of the bearings is calculated under different grades of rotating speed of axle by using Newton-Rampson Algorithm.The theoretical solution for contact pressure of the inner and outer raceway is given based on Hertz contact theory.The effect of the rotating speed on the contact pressure is dis-cussed.Finally,the dynamic characteristics of the simplified model of the bearings are solved by using ABAQUS-ex-plicit.The relevant result is basically consistent with the actual use condition.