Line Spectrum Chaotification on QZS Systems with Time-Delay Control

Chaotification can be employed to weaken or eliminate the feature of line spectra of waterborne noise. The efficiency of this method lies on the use of small control. The analysis reveals that the critical control gain depends on the stiffness of vibration isolation systems. Thus, an isolation raft...

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Main Authors: Jing Zhang, Tao Tang, Wenhua Fang
Format: Article
Language:English
Published: Wiley 2020-01-01
Series:Complexity
Online Access:http://dx.doi.org/10.1155/2020/1932406
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author Jing Zhang
Tao Tang
Wenhua Fang
author_facet Jing Zhang
Tao Tang
Wenhua Fang
author_sort Jing Zhang
collection DOAJ
description Chaotification can be employed to weaken or eliminate the feature of line spectra of waterborne noise. The efficiency of this method lies on the use of small control. The analysis reveals that the critical control gain depends on the stiffness of vibration isolation systems. Thus, an isolation raft system based on quasi-zero-stiffness (QZS) property is proposed for line spectrum chaotification. A nonlinear time-delay controller is derived accordingly. Comparative analysis shows that the new approach allows much smaller control, and the intensity of line spectra is further reduced. Numerical simulations also indicate other advantages with the introduction of QZS system into chaotification.
format Article
id doaj-art-954f00705c4449a18e754762f262ac99
institution Kabale University
issn 1076-2787
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language English
publishDate 2020-01-01
publisher Wiley
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series Complexity
spelling doaj-art-954f00705c4449a18e754762f262ac992025-02-03T01:01:30ZengWileyComplexity1076-27871099-05262020-01-01202010.1155/2020/19324061932406Line Spectrum Chaotification on QZS Systems with Time-Delay ControlJing Zhang0Tao Tang1Wenhua Fang2School of Mechanical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, ChinaSchool of Mechanical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, ChinaSchool of Mechanical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, ChinaChaotification can be employed to weaken or eliminate the feature of line spectra of waterborne noise. The efficiency of this method lies on the use of small control. The analysis reveals that the critical control gain depends on the stiffness of vibration isolation systems. Thus, an isolation raft system based on quasi-zero-stiffness (QZS) property is proposed for line spectrum chaotification. A nonlinear time-delay controller is derived accordingly. Comparative analysis shows that the new approach allows much smaller control, and the intensity of line spectra is further reduced. Numerical simulations also indicate other advantages with the introduction of QZS system into chaotification.http://dx.doi.org/10.1155/2020/1932406
spellingShingle Jing Zhang
Tao Tang
Wenhua Fang
Line Spectrum Chaotification on QZS Systems with Time-Delay Control
Complexity
title Line Spectrum Chaotification on QZS Systems with Time-Delay Control
title_full Line Spectrum Chaotification on QZS Systems with Time-Delay Control
title_fullStr Line Spectrum Chaotification on QZS Systems with Time-Delay Control
title_full_unstemmed Line Spectrum Chaotification on QZS Systems with Time-Delay Control
title_short Line Spectrum Chaotification on QZS Systems with Time-Delay Control
title_sort line spectrum chaotification on qzs systems with time delay control
url http://dx.doi.org/10.1155/2020/1932406
work_keys_str_mv AT jingzhang linespectrumchaotificationonqzssystemswithtimedelaycontrol
AT taotang linespectrumchaotificationonqzssystemswithtimedelaycontrol
AT wenhuafang linespectrumchaotificationonqzssystemswithtimedelaycontrol