Operating Characteristics Analysis of Rotor Systems Using MCDM Methods

Audrius ČEREŠKA¹, Valentinas PODVEZKO², Edmundas Kazimieras ZAVADSKAS³^*

¹Department of Mechanical Engineering,
Vilnius Gediminas Technical University,
Basanavičiaus str. 28, 03224, Vilnius, Lithuania,
audrius.cereska@vgtu.lt
²Department of Mathematical Statistics,
Vilnius Gediminas Technical University,
Saulėtekio al. 11, 10223, Vilnius, Lithuania,
valentinas.podvezko@vgtu.lt

³Research Institute of Smart Building Technologies,
Vilnius Gediminas Technical University,
Saulėtekio al. 11, 10223, Vilnius, Lithuania,
edmundas.zavadskas@vgtu.lt

* Corresponding author

Abstract: The paper presents multi-criteria analysis of operating characteristics of rotor systems with tilting pad bearings. Special stand with measuring equipment was used for experimental researches. Three types of bearings were tested while changing the speed of rotor rotation and the clearance between the rotor and the bearing pad. Results of 27 measurements have been processed using multi-criteria analysis. Three methods have been used for estimating criteria weights: entropy and new methods CILOS (Criterion Impact LOS) and Objective criteria of weight determination IDOCRIW integrated (Integrated Determination of Objective Criteria Weights). For the selection of priority several well-known and widely used MCDM methods such as COPRAS, SAW and TOPSIS have been used.

Keywords: rotor system, bearing, characteristics, MCDM, objective weight, entropy method, CILOS method, IDOCRIW method.

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CITE THIS PAPER AS: Audrius ČEREŠKA, Valentinas PODVEZKO, Edmundas Kazimieras ZAVADSKAS, Operating Characteristics Analysis of Rotor Systems Using MCDM Methods, Studies in Informatics and Control, ISSN 1220-1766, vol. 25(1), pp. 59-68, 2016. https://doi.org/10.24846/v25i1y201607