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Comparison of vibration analysis with different modeling method of a rotating shaft system

  • Dong Sik Gu
  • Byeong Su Kim
  • Jang Ik Lim
  • Yong Chae Bae
  • Wook Ryun Lee
  • Hee Su Kim
  • Byeong Keun Choi
Conference paper

Abstract

The numerical analysis is the basic step of machine designing and the result from it is the fundamental data for the assess management of machine/plant. Recently, many kinds of softwares based on different method, like Finite Element Method (FEM) and Transfer Matrix Method (TMM) were developed for the machine design. Especially the development of simulating a rotating component, gas/steam/wind turbine shaft, high speed shaft, the shaft of large vessels and the shaft with blades, flywheels and gears. In order to reduce the error, it always needs to increase the number of element, some times over 100,000. But it will affect the inputing matrix size and calculating time. In this paper, a 2D modelling method was proposed to reduce the element size and solving time. This paper compared the simulation results from MSC Partan/Nastran and ANSYS Workbench using a 3D model and the results by solving MATLAB based on FEM using a 2D model.

Keywords

Finite Element Method Mode Shape Critical Speed Transfer Matrix Method Partial Differential Equation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag 2010

Authors and Affiliations

  • Dong Sik Gu
    • 1
  • Byeong Su Kim
    • 1
  • Jang Ik Lim
    • 1
  • Yong Chae Bae
    • 2
  • Wook Ryun Lee
    • 2
  • Hee Su Kim
    • 2
  • Byeong Keun Choi
    • 3
  1. 1.Department of precision and mechanical engineeringGraduate School of Gyeongsang National UniversityTongyoung CityKorea, Republic of
  2. 2.Hydro & Fossil Power Generation laboratoryKorea Electric Power Research InstituteYuseong-GuKorea, Republic of
  3. 3.Department of precision and mechanical engineering, Institute of Marine IndustryGyeongsang National UniversityTongyoung CityKorea, Republic of

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