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Specific grasp of vibration characteristics of hot rolling mill
Release time:
2020/05/19
In order to test the abnormal vibration of the mill, according to the vibration data signal measured by the controller and the finite element grabbing of the mill, according to the development of the finite element simulation technology, according to the specific vibration and friction, the driving system software of the main rolling mill and the finite element entity model is mainly set, as well as the main vibration mechanism and the pulse rolling mill have no response to the current, and the main drive is in the proper position during the cold rolling There is abnormal torsional vibration, and the left and right direction vibration of the structure is relatively serious.
At present, the research results are consistent with the main frequency of CPU in practice, the measured data signal is accurate, and it can clearly show the abnormal vibration frequency caused by turning, which provides theoretical significance for making vibration control countermeasures. When considering the vibration of multi-layer plate rolling system software, the interaction and change rule of longitudinal and transverse cold rolling force are introduced, and the concept of dynamic cold rolling force is introduced. Considering the vibration reduction of discrete system in rolling process, the rolling, bending stiffness and external excitation of discrete system are established, and the coupling vibration entity model of discrete system of cold rolling machine is established Dynamic and phase frequency characteristics of the coupled vibration system software for multi limit processing.
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