Reduced order modeling of a bladed rotor with geometric mistuning via estimated deviations in mass and stiffness matrices

Yasharth Bhartiya, Alok Sinha

Research output: Contribution to journalArticle

26 Scopus citations

Abstract

This paper deals with further development of modified modal domain analysis (MMDA), which is a breakthrough method in the reduced order modeling of a bladed rotor with geometric mistuning. The main focus of this paper is to show that deviations in mass and stiffness matrices due to mistuning, estimated by Taylor series expansions in terms of independent proper orthogonal decomposition variables representing geometric variations of blades, can be used for MMDA. This result has rendered Monte Carlo simulation of the response of a bladed rotor with geometric mistuning to be easy and computationally efficient.

Original languageEnglish (US)
Article number052501
JournalJournal of Engineering for Gas Turbines and Power
Volume135
Issue number5
DOIs
StatePublished - May 15 2013

All Science Journal Classification (ASJC) codes

  • Nuclear Energy and Engineering
  • Fuel Technology
  • Aerospace Engineering
  • Energy Engineering and Power Technology
  • Mechanical Engineering

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