|
|||||
|
|
Mode Localization Induced by a Nonlinear Control Loop |
|
| Authors: | M'Closkey Robert T Vakakis Alex Gutierrez Roman |
| Institution: | (1) Mechanical and Aerospace Engineering, University of California, Los Angeles, CA, 90095, U.S.A;(2) Mechanical and Industrial Engineering, University of Illinois at Urbana-Champaign, 138 Mech. Eng., 1206 W. Green Street, Bldg. MC244, Urbana, IL, 61801, U.S.A;(3) Jet Propulsion Laboratory, 4800 Oak Grove Dr., Pasadena, CA, 91109, U.S.A |
| Abstract: | We present the analysis of a nonlinear controlsystem that is used to excite and maintain a specified amplitude ofoscillation in the Jet Propulsion Laboratory vibratory gyroscope.This experimental application shows that nonlinear localizationthrough active means can be implemented in a practical system when itis desirable to confine the response to a favorable mode. Theclosed-loop system response predicted by the model shows very closeagreement with the experimental results for a significant range ofcontroller parameters. We also experimentally demonstrate that theactively localized motion is eliminated through bifurcation, similarto what was observed in previous passive localization studies appliedto extended flexible oscillators. |
| Keywords: | nonlinear localization nonlinear control automatic gain control vibratory gyroscope |
| 本文献已被 SpringerLink 等数据库收录！ | |