- Gear and Bearing Dynamics Analysis
- Tribology and Lubrication Engineering
- Metallurgy and Material Forming
- Adhesion, Friction, and Surface Interactions
- Metal Alloys Wear and Properties
- Microstructure and Mechanical Properties of Steels
Hangzhou Dianzi University
2024-2025
Abstract A dynamic model of the nonlinear torsional vibration in main drive system a rolling mill was established, accounting for friction torque obtained from lubrication effect at interface and parameter excitation caused by inclination universal joint shaft. The response equation under combined action parame-ter external solved using multi-scale method, determining am-plitude-frequency characteristics vibration. influence structural parameters, disturbances, on behavior analyzed. results...
This study investigates the impact of variable friction characteristics at rolling interface on vertical vibration plate and strip mills. Based optimized Karman equilibrium theory, a dynamic force model considering front back tension, elastic stretching, speed was established. The amplitude-frequency response equation mill system is solved by multi-scale method, influence main parameters analyzed. results show that increase first stiffness coefficient leads to decrease principal common...
This study comprehensively utilizes the mixed lubrication theory and rolling deformation to establish a finite element stiffness contact model that considers surface texture characteristics of interface. The dynamic explicit analysis is used obtain deformed solid, turbulent equation control fluid boundary conditions. bidirectional Fluid-Structure Interacton (FSI) ansysis influence roughness, textures, parameters such as speed on distribution oil film pressure during process. results confirm...