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VERSION:2.0
METHOD:PUBLISH
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ORGANIZER;CN=ESTAD 2023:mailto:info@metec-estad.com
LOCATION:Room 26
SUMMARY:Vibration dissipator for hot strip mills
DESCRIPTION:"This paper deals with the development of a new technology for reducing and eliminating resonance vibrations in hot strip mills and thin-slab casting and rolling plants. The new system – called Vibration Dissipator - allows to stabilize and improve the overall process stability by reducing the vibration behavior of single finishing mill stands. 

The Vibration Dissipator is based on two combined physical effects. First effect represents the impact of a classical absorber, being an added vibratory element that is designed to “swallow” the resonance vibration. Second, an energy dissipating element which broadens the effective suppressing frequency range. The solution consists of special designed hydraulic elements, such as a combination of a capacity, a resistance and an inductance. This arrangement of design elements can be realized as a passive or semi-active energy dissipating hydraulic solution. A pure passive Vibration Dissipator was already successfully implemented on finishing stand 3 of an industrial hot rolling mill. 

The actual development targets focus on a semi-active concept with an adaptable hydraulic capacity. With this concept, it is possible to adjust the desired frequency of the Vibration Dissipator in a defined range. Since the frequency of these vibrations can change during the production, our concept allows a smooth adjustment to the actual frequency within seconds, in order to achieve an optimized damping effect. With our developed frequency identification system, it is possible to identify the actual frequency of the vibration which is currently appearing at the stand. Such a system consists of accelerometers and a sophisticated algorithm to evaluate the frequency. This frequency identification system is already implemented at another technological package from Primetals Technologies."

CLASS:PUBLIC
DTSTART:20230614T115000
DTEND:20230614T121000
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