Gray-Box Approach for Fault Detection of Dynamical Systems

[+] Author and Article Information
Han G. Park

Jet Propulsion Laboratory, 4800 Oak Grove Drive, Pasadena, CA 91109e-mail: han.g.park@jpl.nasa.gov

Michail Zak

Jet Propulsion Laboratory, 4800 Oak Grove Drive, Pasadena, CA 91109e-mail: michail.zak@jpl.nasa.gov

J. Dyn. Sys., Meas., Control 125(3), 451-454 (Sep 18, 2003) (4 pages) doi:10.1115/1.1589032 History: Received January 18, 2001; Revised March 24, 2003; Online September 18, 2003
Copyright © 2003 by ASME
Your Session has timed out. Please sign back in to continue.



Grahic Jump Location
The gray-box approach to modeling residual
Grahic Jump Location
Description of the residual data
Grahic Jump Location
Schematic of gas turbine with time delay feedback actuator
Grahic Jump Location
Simulation of gas turbine with a faulty actuator. At t=25 s, the time constant of the actuator was changed to Ts=0.01 from 0.356 s. The top plot (a) is the rotational speed. The middle plot (b) is the filter, and the bottom plot (c) is the residual. Note the change in the residual.
Grahic Jump Location
Coefficients of the fourth order linear auto-regressive process (a1,a2,a3,a4). The fault occurs at 2500th sample. Note the change in the coefficients.




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 Journal Articles
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