0

Full Content is available to subscribers

Subscribe/Learn More  >

Modeling and Torsional Vibration Analysis of an Engine Cold-Test Cell for Production Fault Diagnostics

[+] Author Affiliations
Kamran A. Gul, Nasir Bilal, Douglas E. Adams

Purdue University, Lafayette, IN

Paper No. DETC2009-87020, pp. 1157-1166; 10 pages
doi:10.1115/DETC2009-87020
From:
  • ASME 2009 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
  • Volume 1: 22nd Biennial Conference on Mechanical Vibration and Noise, Parts A and B
  • San Diego, California, USA, August 30–September 2, 2009
  • Conference Sponsors: Design Engineering Division and Computers in Engineering Division
  • ISBN: 978-0-7918-4898-2 | eISBN: 978-0-7918-3856-3
  • Copyright © 2009 by ASME

abstract

Engine cold-test cell drivelines experience large torsional oscillations in transient tests due to the excitation of system resonances by various engine harmonics. The excessive torsional vibrations result in structural degradation of the driveline components and also affect the fault detection process by preventing accurate measurement of gear noise and by compromising the quality of diagnostic torque waveforms. In this work, a torsional vibration model of an engine production cold-test cell is developed to analyze the vibration and diagnostic signal characteristics. The test cell driveline components are modeled using first principles. Waveform distortion metrics based on harmonic order amplitude ratios are devised to quantify signal distortion levels. A rigorous validation of the simulation model using both torque amplitude and waveform distortion comparisons of test and simulation data is conducted. Model parameters that can help suppress the torsional resonances in the operating range are identified through embedded sensitivity functions. It is shown that by modifying the inertia and stiffness properties of the rubber coupling, the resonant vibration problem of interest can be mitigated. The design modifications are implemented in a production test cell resulting in a significant reduction in torsional amplitudes and waveform distortion levels with a corresponding increase in the sensitivity to faults.

Copyright © 2009 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