轴承
軸承
축승
BEARING
2014年
7期
1-6,7
,共7页
徐四宁%奚卉%张茜%王忠强%王凤才
徐四寧%奚卉%張茜%王忠彊%王鳳纔
서사저%해훼%장천%왕충강%왕봉재
森基米尔轧机%背衬轴承%支承辊%中间辊%有限元模型%接触机理
森基米爾軋機%揹襯軸承%支承輥%中間輥%有限元模型%接觸機理
삼기미이알궤%배츤축승%지승곤%중간곤%유한원모형%접촉궤리
Sendzimir mill%back -up bearing%back -up roll%intermediate roll%finite element model%contact behavior
建立了森基米尔轧机支承辊成组背衬轴承与中间辊弹性耦合系统多界面接触机理分析模型,采用有限元法对弹性系统及界面接触问题进行了大规模数值迭代求解;并基于此模型研究了支承辊挠曲变形对支承辊成组背衬轴承系统接触行为的影响,得到了给定2种轧制力和耦合场作用下支承辊的挠曲变形及6套成组背衬轴承内部的接触应力分布状态,以及成组背衬轴承与中间辊的接触行为规律。结果表明,在给定轧制工况条件下,中间辊最大挠度远大于支承辊的最大挠度;支承辊挠曲变形对成组背衬轴承与中间辊间的接触均匀性以及轴承内部接触均匀性产生较大影响。
建立瞭森基米爾軋機支承輥成組揹襯軸承與中間輥彈性耦閤繫統多界麵接觸機理分析模型,採用有限元法對彈性繫統及界麵接觸問題進行瞭大規模數值迭代求解;併基于此模型研究瞭支承輥撓麯變形對支承輥成組揹襯軸承繫統接觸行為的影響,得到瞭給定2種軋製力和耦閤場作用下支承輥的撓麯變形及6套成組揹襯軸承內部的接觸應力分佈狀態,以及成組揹襯軸承與中間輥的接觸行為規律。結果錶明,在給定軋製工況條件下,中間輥最大撓度遠大于支承輥的最大撓度;支承輥撓麯變形對成組揹襯軸承與中間輥間的接觸均勻性以及軸承內部接觸均勻性產生較大影響。
건립료삼기미이알궤지승곤성조배츤축승여중간곤탄성우합계통다계면접촉궤리분석모형,채용유한원법대탄성계통급계면접촉문제진행료대규모수치질대구해;병기우차모형연구료지승곤뇨곡변형대지승곤성조배츤축승계통접촉행위적영향,득도료급정2충알제력화우합장작용하지승곤적뇨곡변형급6투성조배츤축승내부적접촉응력분포상태,이급성조배츤축승여중간곤적접촉행위규률。결과표명,재급정알제공황조건하,중간곤최대뇨도원대우지승곤적최대뇨도;지승곤뇨곡변형대성조배츤축승여중간곤간적접촉균균성이급축승내부접촉균균성산생교대영향。
A multi -interface contact behavior analysis model is developed for elastic coupling system of back -up roll grouped back -up bearings and intermediate roll of Sendzimir mill,and the large -scale numerical iteration solution for elastic system and interface contact problem is carried out by using the finite element method.Based on this model,the influence of deflection of roll on contact behavior of back -up roll grouped bearings system is researched.The deflec-tion of roll under two given roll force and coupling field effect,internal contact stress distribution state of six grouped back -up bearings and contact behavior rules of grouped back -up bearings and intermediate roll are given.The results show that the maximum deflection of intermediate roll is much greater than that of back -up roll under the given roll operating condition,and the deflection of back -up roll have a greater impact on contact uniformity between grouped back -up bearings and intermediate roll and internal contact uniformity of bearings.