Hybrid Filtered-x Adaptive Vibration Control with Internal Feedback and Online Identification
Joint Authors
Yang, Lihua
Liu, Shuyong
Zhang, Haipeng
Wu, Haiping
Li, Haifeng
Jiang, Jian
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-07-18
Country of Publication
Egypt
No. of Pages
15
Main Subjects
Abstract EN
Active control is an effective way to suppress low-frequency mechanical vibration.
However, with applications to submarine equipment, there are still some shortcomings due to vibration coupling and multifrequency complex excitation.
In this paper, a novel hybrid improved adaptive control strategy, feedback and online identification filtered-x LMS, namely, FOFxlms, is proposed, which introduces the residual errors to correct variable step-size, uses the estimated primary path to improve online identification, and applies internal feedback to compensate for the feedforward control.
Then the FOFxlms algorithm is applied to a double-layer vibration isolation system of submarine rotating equipment, and the simulation results show that the normalized variable step-size with residual error can effectively improve convergence speed, the internal feedback can efficaciously compensate for steady-state control accuracy, and the online identification can dynamically identify the time-varying characteristics of the secondary path.
The vibration reduction efficiency of Fxlms, FFxlms, and FOFxlms increases for the fundamental frequency vibration; the control effect and convergence speed are also enhanced in turn.
American Psychological Association (APA)
Yang, Lihua& Liu, Shuyong& Zhang, Haipeng& Wu, Haiping& Li, Haifeng& Jiang, Jian. 2018. Hybrid Filtered-x Adaptive Vibration Control with Internal Feedback and Online Identification. Shock and Vibration،Vol. 2018, no. 2018, pp.1-15.
https://search.emarefa.net/detail/BIM-1215524
Modern Language Association (MLA)
Yang, Lihua…[et al.]. Hybrid Filtered-x Adaptive Vibration Control with Internal Feedback and Online Identification. Shock and Vibration No. 2018 (2018), pp.1-15.
https://search.emarefa.net/detail/BIM-1215524
American Medical Association (AMA)
Yang, Lihua& Liu, Shuyong& Zhang, Haipeng& Wu, Haiping& Li, Haifeng& Jiang, Jian. Hybrid Filtered-x Adaptive Vibration Control with Internal Feedback and Online Identification. Shock and Vibration. 2018. Vol. 2018, no. 2018, pp.1-15.
https://search.emarefa.net/detail/BIM-1215524
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1215524