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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

An investigation of the three-dimensional vibration characteristics of a rotor-bearing system using the finite element method

Hampton, Jeffrey Jon January 1982 (has links)
A vibration analysis of a high-speed rotor-bearing system using the finite element is presented. Models were developed to study the effect of rotor mass and stiffness, support bearing stiffness, and bearing pedestal stiffness on rotor critical speeds. Bearing stiffnesses were obtained from a previously-developed computer program. Pedestal stiffnesses were obtained from a plane-stress finite element analysis. A rotor model which incorporated these bearing and pedestal stiffnesses was then analyzed using a three-dimensional finite element analysis to determine its critical speeds. Results of this analysis are compared to experimentally obtained data and discussed. Recommendations for future analyses, experimental developments, and rotor configurations are given. / Master of Science

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