Capturing and suppressing resonance in steel casting mold oscillation systems using Timoshenko beam model

Oyuna Angatkina, Vivek Natarajan, Zhelin Chen, Joseph Bentsman

Research output: Chapter in Book/Report/Conference proceedingConference contribution


A methodology for development of high fidelity control-oriented continuous casting mold oscillator software testbed incorporating two coupled hydraulically actuated Timoshenko beam models is proposed. Nontrivial damped natural frequency calculation is carried out. For a finite-difference approximation of analytical model, monotonic dependence on spatial approximation accuracy of the resonance frequency under the fixed mass and of the mass under the fixed resonance frequency is discovered. Based on these findings, a novel beam parameter selection procedure for precise attainment of the desired resonance and damped natural frequencies by analytical and numerical models under the relevant boundary conditions and runtime constraints is developed. Using this procedure, fitting of the model parameters to resonance frequencies exhibited by thin and thick slab casting mold oscillators at the Nucor Decatur and Severstal Dearborn steel mills, respectively, is demonstrated. Assessment of controller efficacy in suppression of the undesirable oscillations in the software testbed fitted to Severstal caster is shown.

Original languageEnglish (US)
Title of host publicationACC 2015 - 2015 American Control Conference
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages6
ISBN (Electronic)9781479986842
StatePublished - Jul 28 2015
Event2015 American Control Conference, ACC 2015 - Chicago, United States
Duration: Jul 1 2015Jul 3 2015

Publication series

NameProceedings of the American Control Conference
ISSN (Print)0743-1619


Conference2015 American Control Conference, ACC 2015
Country/TerritoryUnited States

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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