Rotor Dynamic Analysis of Multi-Disc System with Viscoelastic Support

Authors

  • Sagar N  Postgraduate Student, Department of Mechanical Engineering, Dayananda Sagar College of Engineering, Bangalore, India
  • Manjunath S B  Assistant Professor, Department of Mechanical Engineering, Dayananda Sagar College of Engineering, Bangalore, India

Keywords:

Rotor Dynamic, Critical Speed, Campbell Diagram, Natural Frequencies, Unbalanced Response.

Abstract

The detailed study of rotor dynamic aspects of a rotating system is very much essential before the start of manufacturing process. In different types of rotating machines like compressor, turbine, turbo-pumps and so on the different types of bearings and support system have been used to obtain desired performance. A detailed analysis on critical speed estimation and frequency response of the system has been carried out in this work. To avoid resonant condition at operating speeds, modal analysis of such systems is much important in the initial stages of design. Full rotor dynamics analysis during operating conditions is also mandatory to investigate the dynamic behaviour of the rotating structures. In this work modal analysis, critical speed and harmonic analysis of frequency response of high speed multi disc system supported with viscoelastic support has been carried out using 3D finite element analysis software named Ansys workbench. The critical speed and mode shapes of the multi disc system supported with viscoelastic support are obtained through Campbell diagram in order to investigate the dynamic behaviour of the rotating system. The effect of change of critical speed due to change in stiffness values of the support is been studied. Further, harmonic analysis is been carried out in order to determine the frequency response of the system.

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International Journal of Scientific Research in Science, Engineering and Technology

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Published

2022-08-30

Issue

Volume 9, Issue 4, July-August-2022

Section

Research Articles

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This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

[1]
Sagar N, Manjunath S B "Rotor Dynamic Analysis of Multi-Disc System with Viscoelastic Support" International Journal of Scientific Research in Science, Engineering and Technology (IJSRSET), Print ISSN : 2395-1990, Online ISSN : 2394-4099, Volume 9, Issue 4, pp.335-344, July-August-2022.