0

Full Content is available to subscribers

Subscribe/Learn More  >

Active Vibration Control of Flexible Rotor-Shaft System Subject to Earthquake

[+] Author Affiliations
P. Sharma, S. Gupta, J. K. Dutt

Indian Institute of Technology Delhi, New Delhi, India

A. S. Das

Indian Institute of Technology Patna, Patna, India

Paper No. IMECE2012-89298, pp. 795-805; 11 pages
doi:10.1115/IMECE2012-89298
From:
  • ASME 2012 International Mechanical Engineering Congress and Exposition
  • Volume 4: Dynamics, Control and Uncertainty, Parts A and B
  • Houston, Texas, USA, November 9–15, 2012
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-4520-2
  • Copyright © 2012 by ASME

abstract

This paper presents the results of a numerical simulation to actively control transverse vibration of a flexible rotor shaft subject to seismic base excitation. The active control force is applied over an air gap by an electromagnetic actuator. Equations of motion of the rotor-shaft-system have been drawn up after discretizing the rotor continuum with finite beam elements and taking into account rotor flexibility, internal friction forces due to rotor material damping, inertial forces due to base motion, gyroscopic forces and non-linear electromagnetic control forces from the actuator in addition to harmonic excitation due to unbalance in the steadily spinning rotor-disc. A MATLAB code in the SIMULINK domain has been created for this purpose and the equations developed are solved numerically in the time domain to get the response at each nodal point. Numerical simulation of vibration response of the disc in a single-disc rotor-shaft-system is compared with and without the control action when the rotor base is excited with the El-Centro earthquake data. The comparison shows a remarkable reduction of response amplitude and improvement of rotor-shaft-system stability in comparison with no control action. Hence the usefulness of an electromagnetic actuator is proposed for safe and sound operation of rotor-shaft systems even under the seismic base excitation.

Copyright © 2012 by ASME

Figures

Tables

Interactive Graphics

Video

Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In