Beneficial performance of a quasi-zero-stiffness vibration isolator with time-delayed active control

Xiuting Sun; Jian Xu; Xingjian Jing; Li Cheng

doi:10.1016/j.ijmecsci.2014.03.002

Beneficial performance of a quasi-zero-stiffness vibration isolator with time-delayed active control

Xiuting Sun^*
, Jian Xu
, Xingjian Jing
, Li Cheng

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

177 Citations (Scopus)

Abstract

The potential beneficial performance of a quasi-zero-stiffness vibration isolator (QZS-VI) with a simple linear time-delayed active control strategy is investigated in this study. Stability and bifurcation analysis shows that an active control can basically improve the system robustness in stability at the equilibrium position. However, a time-delayed active control can not only further strengthen the robustness of the system in stability, but also noticeably improve system transmissibility performance both in force and base excitations and obviously decrease the settling time of system transient response subject to an impact load. Moreover, it is shown that the controlled stiffness and especially the introduced time delay could be designed deliberately so that undesirable bifurcation and chaotic behaviors can be avoided or greatly suppressed. The results provide a useful insight into the analysis and design of nonlinear vibration isolators by exploiting potential nonlinear benefits of the time delay in vibration control. © 2014 Elsevier Ltd.

Original language	English
Pages (from-to)	32-40
Journal	International Journal of Mechanical Sciences
Volume	82
Online published	7 Mar 2014
DOIs	https://doi.org/10.1016/j.ijmecsci.2014.03.002
Publication status	Published - May 2014
Externally published	Yes

Funding

The authors, Xiuting Sun and Jian Xu would like to gratefully acknowledge the support from the State Key Program of National Natural Science Foundation of China under Grant no. 11032009, the Fundamental Research Funds for the Central Universities and Shanghai Leading Academic Discipline Project in No. B302 for this work; and Xiuting Sun, Xingjian Jing and Li Cheng would also like to gratefully acknowledge the support from the GRF project (Ref. 517810) of Hong Kong RGC, and internal Research Grants of Hong Kong Polytechnic University.

Research Keywords

Vibration isolator
Quasi-zero-stiffness
Time delay
Stability
Bifurcation
CHAOS
FORCE
LIMIT

Access Output

10.1016/j.ijmecsci.2014.03.002

Other Access Options

Check CityUHK Library

Permanent Link

Right click to copy link

Cite this

@article{33a910b6529143e78dd9c44a54e8981d,

title = "Beneficial performance of a quasi-zero-stiffness vibration isolator with time-delayed active control",

abstract = "The potential beneficial performance of a quasi-zero-stiffness vibration isolator (QZS-VI) with a simple linear time-delayed active control strategy is investigated in this study. Stability and bifurcation analysis shows that an active control can basically improve the system robustness in stability at the equilibrium position. However, a time-delayed active control can not only further strengthen the robustness of the system in stability, but also noticeably improve system transmissibility performance both in force and base excitations and obviously decrease the settling time of system transient response subject to an impact load. Moreover, it is shown that the controlled stiffness and especially the introduced time delay could be designed deliberately so that undesirable bifurcation and chaotic behaviors can be avoided or greatly suppressed. The results provide a useful insight into the analysis and design of nonlinear vibration isolators by exploiting potential nonlinear benefits of the time delay in vibration control. {\textcopyright} 2014 Elsevier Ltd.",

keywords = "Vibration isolator, Quasi-zero-stiffness, Time delay, Stability, Bifurcation, CHAOS, FORCE, LIMIT",

author = "Xiuting Sun and Jian Xu and Xingjian Jing and Li Cheng",

year = "2014",

month = may,

doi = "10.1016/j.ijmecsci.2014.03.002",

language = "English",

volume = "82",

pages = "32--40",

journal = "International Journal of Mechanical Sciences",

issn = "0020-7403",

publisher = "Elsevier Ltd.",

}

TY - JOUR

T1 - Beneficial performance of a quasi-zero-stiffness vibration isolator with time-delayed active control

AU - Sun, Xiuting

AU - Xu, Jian

AU - Jing, Xingjian

AU - Cheng, Li

PY - 2014/5

Y1 - 2014/5

N2 - The potential beneficial performance of a quasi-zero-stiffness vibration isolator (QZS-VI) with a simple linear time-delayed active control strategy is investigated in this study. Stability and bifurcation analysis shows that an active control can basically improve the system robustness in stability at the equilibrium position. However, a time-delayed active control can not only further strengthen the robustness of the system in stability, but also noticeably improve system transmissibility performance both in force and base excitations and obviously decrease the settling time of system transient response subject to an impact load. Moreover, it is shown that the controlled stiffness and especially the introduced time delay could be designed deliberately so that undesirable bifurcation and chaotic behaviors can be avoided or greatly suppressed. The results provide a useful insight into the analysis and design of nonlinear vibration isolators by exploiting potential nonlinear benefits of the time delay in vibration control. © 2014 Elsevier Ltd.

AB - The potential beneficial performance of a quasi-zero-stiffness vibration isolator (QZS-VI) with a simple linear time-delayed active control strategy is investigated in this study. Stability and bifurcation analysis shows that an active control can basically improve the system robustness in stability at the equilibrium position. However, a time-delayed active control can not only further strengthen the robustness of the system in stability, but also noticeably improve system transmissibility performance both in force and base excitations and obviously decrease the settling time of system transient response subject to an impact load. Moreover, it is shown that the controlled stiffness and especially the introduced time delay could be designed deliberately so that undesirable bifurcation and chaotic behaviors can be avoided or greatly suppressed. The results provide a useful insight into the analysis and design of nonlinear vibration isolators by exploiting potential nonlinear benefits of the time delay in vibration control. © 2014 Elsevier Ltd.

KW - Vibration isolator

KW - Quasi-zero-stiffness

KW - Time delay

KW - Stability

KW - Bifurcation

KW - CHAOS

KW - FORCE

KW - LIMIT

UR - https://www.scopus.com/pages/publications/84896902914

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-84896902914&origin=recordpage

U2 - 10.1016/j.ijmecsci.2014.03.002

DO - 10.1016/j.ijmecsci.2014.03.002

M3 - RGC 21 - Publication in refereed journal

SN - 0020-7403

VL - 82

SP - 32

EP - 40

JO - International Journal of Mechanical Sciences

JF - International Journal of Mechanical Sciences

ER -

Beneficial performance of a quasi-zero-stiffness vibration isolator with time-delayed active control

Abstract

Funding

Research Keywords

Access Output

Other Access Options

Permanent Link

Other Files and Links

Fingerprint

Cite this