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sleeve damage
相关语句
  锥套损伤
    According to the sleeve damage of oil-film bearing in 1580 PC hot strip rolling mill, during the process of setup, disassembly and usage, mechanic model on sleeve assembly by boundary element method (BEM), together with boundary conditions, is established.
    针对1580 PC热板带连轧机油膜轴承在装拆与使用过程中的锥套损伤问题,建立锥套装配的边界元力学模型及边界条件。
短句来源
  锥套损伤
    According to the sleeve damage of oil-film bearing in 1580 PC hot strip rolling mill, during the process of setup, disassembly and usage, mechanic model on sleeve assembly by boundary element method (BEM), together with boundary conditions, is established.
    针对1580 PC热板带连轧机油膜轴承在装拆与使用过程中的锥套损伤问题,建立锥套装配的边界元力学模型及边界条件。
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Aimed at all kinds of damage phenomena in the sleeve usage of oil-film bearing in the backup roll of Baoshan 1580 hot strip mill,during the process of elastic conjunction between sleeve and rollneck,deformation and load properties are quantitatively analyzed by boundary element method for 3D elastic and plastic contact problems.The variations of contact pressure of sleeve along generating line are obtained under different hydroform pressures and axial pushing forces.Meanwhile,the contact pressure peaks in sleeve...

Aimed at all kinds of damage phenomena in the sleeve usage of oil-film bearing in the backup roll of Baoshan 1580 hot strip mill,during the process of elastic conjunction between sleeve and rollneck,deformation and load properties are quantitatively analyzed by boundary element method for 3D elastic and plastic contact problems.The variations of contact pressure of sleeve along generating line are obtained under different hydroform pressures and axial pushing forces.Meanwhile,the contact pressure peaks in sleeve ends and the zones close to seal grooves are major considerations that fasten sleeve damage and decrease its service life.Finally,detailed measures on improving sleeve structure and assembly processes are accordingly brought forward.

针对宝钢1580热连轧机精轧机组支承辊油膜轴承锥套使用中存在的各类损伤问题,利用三维弹塑性接触问题边界元法定量分析了轧机油膜轴承锥套与轧辊辊颈过盈装配过程中的变形和载荷特性,得出了装拆过程中不同的胀型压力和轴向推力条件下锥套接触压力延母线方向的变化规律,同时锥套端部和密封槽附近接触压力峰值的存在是加速锥套损伤及降低其使用寿命的重要原因。最后,从锥套结构和装配工艺等方面提出了具体的改进措施。

According to the sleeve damage of oil-film bearing in 1580 PC hot strip rolling mill, during the process of setup, disassembly and usage, mechanic model on sleeve assembly by boundary element method (BEM), together with boundary conditions, is established. The deformation and load properties of oil-film bearing by interference fit between sleeve and rollneck in rolling mill are quantitatively analyzed by BEM for 3D elastic and plastic contact problems. The energetic parameters of different...

According to the sleeve damage of oil-film bearing in 1580 PC hot strip rolling mill, during the process of setup, disassembly and usage, mechanic model on sleeve assembly by boundary element method (BEM), together with boundary conditions, is established. The deformation and load properties of oil-film bearing by interference fit between sleeve and rollneck in rolling mill are quantitatively analyzed by BEM for 3D elastic and plastic contact problems. The energetic parameters of different load models are set to simulate the setup and assembly processes. The influences of contact pressure and deformation on sleeve and rollneck, under partial loads on oil-film bearing, are discussed as well. Consequently, different expanding pressure, stress and strain varying distribution laws, under axial thrust load during setup and assembly process, are obtained. The fundamental reason that results in sleeve damage is found. Detailed improvement measures on damage depreciation are brought forward. Finally, reasonable experiments on two sample testing rolling mill, which are equipped with oil-film bearing, prove the validity of analytical results, and reasons that result in bearing damage are deduced from above analysis.

针对1580 PC热板带连轧机油膜轴承在装拆与使用过程中的锥套损伤问题,建立锥套装配的边界元力学模型及边界条件。利用三维弹塑性接触问题边界元法定量分析轧机油膜轴承锥套与轧辊辊颈过盈装配过程中的变形和载荷特性,通过设定不同加载模型的参数,对锥套装拆过程进行数值模拟。讨论油膜轴承偏载时锥套接触应力和变形对锥套与辊颈损伤的影响,得出装拆过程中不同胀型压力和轴向推力条件下的应力和应变变化规律,找出导致锥套损伤的根本原因,给出防止锥套与辊颈装配过程损伤的具体改进措施。利用制造出的两台轧机油膜轴承样机试验验证理论分析结果的正确性,并且找到油膜轴承损伤的根本原因。

 
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