On the optimization problem of model-based monitoring

L Ginzinger, M Necip Sahinkaya, B Heckmann, Patrick Keogh, H Ulbrich

Research output: Contribution to journalArticlepeer-review

5 Citations (SciVal)


Today there is a big interest in reducing the maintenance costs and in increasing the reliability of machines in continuous operation. Therefore, maintenance on condition is used. State-of-the-art is a trend analysis and a fault prediction made only based on sensor signals and stochastic methods. The identification possibilities of this technique are limited. A new concept for model-based monitoring has been developed for more detailed fault identification. The developed concept determines the condition of a machine after the occurrence of a fault. The concept is based on a simulation including various faults and an optimization tool. The development of a cost function and the optimization is one of the challenges of such a concept. Using an AMB rotor system with an auxiliary bearing, the new concept of model-based monitoring is investigated using experiments and the optimization is discussed in this paper.
Original languageEnglish
Pages (from-to)1095-1106
Number of pages12
JournalScience China-Technological Sciences
Issue number5
Publication statusPublished - May 2011


  • model-based monitoring
  • optimization
  • rotordynamics


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