Hybrid Filtered-x Adaptive Vibration Control with Internal Feedback and Online Identification
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, f...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2018-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2018/9010567 |
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| _version_ | 1832550453726937088 |
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| author | Lihua Yang Shuyong Liu Haipeng Zhang Haiping Wu Haifeng Li Jian Jiang |
| author_facet | Lihua Yang Shuyong Liu Haipeng Zhang Haiping Wu Haifeng Li Jian Jiang |
| author_sort | Lihua Yang |
| collection | DOAJ |
| description | 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. |
| format | Article |
| id | doaj-art-ddd856ac0b884802bbbe9bfafc4e3f8e |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-ddd856ac0b884802bbbe9bfafc4e3f8e2025-02-03T06:06:47ZengWileyShock and Vibration1070-96221875-92032018-01-01201810.1155/2018/90105679010567Hybrid Filtered-x Adaptive Vibration Control with Internal Feedback and Online IdentificationLihua Yang0Shuyong Liu1Haipeng Zhang2Haiping Wu3Haifeng Li4Jian Jiang5Power Control Department, Navy Submarine Academy, Qingdao 266199, ChinaCollege of Power Engineering, Naval University of Engineering, Wuhan 430033, ChinaPower Control Department, Navy Submarine Academy, Qingdao 266199, ChinaPower Control Department, Navy Submarine Academy, Qingdao 266199, ChinaPower Control Department, Navy Submarine Academy, Qingdao 266199, ChinaInstitute of Acoustics, Chinese Academy of Sciences, Beijing 100190, ChinaActive 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.http://dx.doi.org/10.1155/2018/9010567 |
| spellingShingle | Lihua Yang Shuyong Liu Haipeng Zhang Haiping Wu Haifeng Li Jian Jiang Hybrid Filtered-x Adaptive Vibration Control with Internal Feedback and Online Identification Shock and Vibration |
| title | Hybrid Filtered-x Adaptive Vibration Control with Internal Feedback and Online Identification |
| title_full | Hybrid Filtered-x Adaptive Vibration Control with Internal Feedback and Online Identification |
| title_fullStr | Hybrid Filtered-x Adaptive Vibration Control with Internal Feedback and Online Identification |
| title_full_unstemmed | Hybrid Filtered-x Adaptive Vibration Control with Internal Feedback and Online Identification |
| title_short | Hybrid Filtered-x Adaptive Vibration Control with Internal Feedback and Online Identification |
| title_sort | hybrid filtered x adaptive vibration control with internal feedback and online identification |
| url | http://dx.doi.org/10.1155/2018/9010567 |
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