Early warning method and device for vibration of cold continuous rolling mill, medium and electronic equipment
By preprocessing the mill vibration signal using the Duffing oscillator random resonance system model, early warning of cold continuous rolling mill vibration is provided, solving the problem of difficulty in early detection of cold continuous rolling mill vibration in existing technologies and improving the safety and efficiency of the mill.
CN115672994BActive Publication Date: 2026-06-19SHOUGANG GROUP CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHOUGANG GROUP CO LTD
- Filing Date
- 2022-09-30
- Publication Date
- 2026-06-19
AI Technical Summary
Technical Problem
Existing technologies make it difficult to detect vibrations in cold continuous rolling mills in the complex rolling environment in advance, leading to strip breakage accidents.
Method used
The Duffing oscillator random resonance system model is used to preprocess the mill vibration signal and to provide early warning by calculating the signal-to-noise ratio, thus preventing the occurrence of mill vibration.
Benefits of technology
This technology enables timely speed reduction before the mill vibrates, preventing strip breakage accidents and improving the safety and efficiency of the mill rolling process.
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Smart Images
Figure CN115672994B_ABST
Abstract
The application provides a cold tandem mill vibration early warning method, wherein the method comprises the following steps: collecting a mill vibration signal s(t); based on a preset Duffing oscillator stochastic resonance system model, pre-processing the mill vibration signal to obtain an intermediate signal y(t1); generating a frequency spectrum y(f1) of the intermediate signal y(t1), and based on the frequency spectrum y(f1), calculating a signal-to-noise ratio of a mill characteristic signal in the mill vibration signal s(t); if the signal-to-noise ratio exceeds a signal-to-noise ratio threshold, triggering a warning for the mill vibration. By using the Duffing oscillator stochastic resonance system model, the time when the cold tandem mill starts to vibrate can be found in advance, so that the mill can be slowed down in time, the strip breaking accident can be avoided, and the safety of the mill rolling strip is ensured.
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