Bearing Parameter Optimization of a Compressor Rotor System Based on Orthogonal Experimental Design

Abstract:

A Low-pressure cylinder rotor of certain large centrifugal compressor units was studied by combing orthogonal experiments and finite element method. The effect of bearing parameters (length-diameter ratio, clearance ratio, dynamic viscosity of lubricating oil and preload) to bearing-rotor system stability and journal vibration was evaluated and optimum bearing parameters were determined. The significant and non-significant factors influencing on system stability and journal vibration were determined by variance analysis and F test. These conclusions will provide guidance to compressor rotor system design.

• Periodical: Advanced Materials Research (Volumes 118-120)
• Pages: 394-398
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.118-120.394
• Online since: June 2010
• Authors: Hui Ma, Yun Nan Teng, Ji Shuang Dai, Bang Chun Wen
• Keywords: Finite Element Model (FEM), Large-Scale Centrifugal Compressor, Orthogonal Experiment, Parameter Optimization

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