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Analysis of Vibration Suppression Effect of Parallel Combined Damping NES System on Nonsmooth System.

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Title: Analysis of Vibration Suppression Effect of Parallel Combined Damping NES System on Nonsmooth System.
Authors: Qi, Xingke1 (AUTHOR), Zhang, Jianchao2 (AUTHOR) zjc@stdu.edu.cn, Wang, Jun2 (AUTHOR)
Source: International Journal of Structural Stability & Dynamics. 6/30/2026, Vol. 26 Issue 14, p1-26. 26p.
Subjects: Damping (Mechanics), Impulse (Physics), Vibration isolation, Hybrid systems, Random vibration, Vibration absorbers, Single-degree-of-freedom systems, Dynamical systems
Abstract: In this paper, the dynamics modeling and vibration suppression analysis of a nonsmooth system with coupled parallel combined damping NES system is carried out. First, the mechanical and mathematical models of the system are established, and the functional expressions of the nonsmooth terms are given. Second, the damping effect of the parallel combined damping NES under impulsive excitation is analyzed, and the damping effect of the parallel connection under different excitation intensities is analyzed by using the comparison of time response and energy change, as well as the influence of the NES parameters on the vibration suppression situation of the system. Finally, the vibration-damping effect exerted by the parallel combined damping NES under random excitation is analyzed, and the influence of the NES parameters is analyzed on the basis of the probability densities of displacement and energy. The results of the study show that the parallel connection provides better damping performance than a single connection, both under impulsive excitation and under random excitation, and that the optimal value of the system mass ratio is not 0.1 under this connection; it is also found that, under both forms of excitation, the parameter values of the NES are not taken to be larger, the better the damping effect suffered by the main system, but that there exists an appropriate range of values. This study is an important theoretical guide for the engineering application of multi-degree-of-freedom NES. [ABSTRACT FROM AUTHOR]
Copyright of International Journal of Structural Stability & Dynamics is the property of World Scientific Publishing Company and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 192787886
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PubTypeId: academicJournal
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Items – Name: Title
  Label: Title
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  Data: Analysis of Vibration Suppression Effect of Parallel Combined Damping NES System on Nonsmooth System.
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  Data: <searchLink fieldCode="AR" term="%22Qi%2C+Xingke%22">Qi, Xingke</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Jianchao%22">Zhang, Jianchao</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> zjc@stdu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Wang%2C+Jun%22">Wang, Jun</searchLink><relatesTo>2</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Structural+Stability+%26+Dynamics%22">International Journal of Structural Stability & Dynamics</searchLink>. 6/30/2026, Vol. 26 Issue 14, p1-26. 26p.
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  Data: <searchLink fieldCode="DE" term="%22Damping+%28Mechanics%29%22">Damping (Mechanics)</searchLink><br /><searchLink fieldCode="DE" term="%22Impulse+%28Physics%29%22">Impulse (Physics)</searchLink><br /><searchLink fieldCode="DE" term="%22Vibration+isolation%22">Vibration isolation</searchLink><br /><searchLink fieldCode="DE" term="%22Hybrid+systems%22">Hybrid systems</searchLink><br /><searchLink fieldCode="DE" term="%22Random+vibration%22">Random vibration</searchLink><br /><searchLink fieldCode="DE" term="%22Vibration+absorbers%22">Vibration absorbers</searchLink><br /><searchLink fieldCode="DE" term="%22Single-degree-of-freedom+systems%22">Single-degree-of-freedom systems</searchLink><br /><searchLink fieldCode="DE" term="%22Dynamical+systems%22">Dynamical systems</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: In this paper, the dynamics modeling and vibration suppression analysis of a nonsmooth system with coupled parallel combined damping NES system is carried out. First, the mechanical and mathematical models of the system are established, and the functional expressions of the nonsmooth terms are given. Second, the damping effect of the parallel combined damping NES under impulsive excitation is analyzed, and the damping effect of the parallel connection under different excitation intensities is analyzed by using the comparison of time response and energy change, as well as the influence of the NES parameters on the vibration suppression situation of the system. Finally, the vibration-damping effect exerted by the parallel combined damping NES under random excitation is analyzed, and the influence of the NES parameters is analyzed on the basis of the probability densities of displacement and energy. The results of the study show that the parallel connection provides better damping performance than a single connection, both under impulsive excitation and under random excitation, and that the optimal value of the system mass ratio is not 0.1 under this connection; it is also found that, under both forms of excitation, the parameter values of the NES are not taken to be larger, the better the damping effect suffered by the main system, but that there exists an appropriate range of values. This study is an important theoretical guide for the engineering application of multi-degree-of-freedom NES. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of International Journal of Structural Stability & Dynamics is the property of World Scientific Publishing Company and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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    Identifiers:
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        Value: 10.1142/S021945542650118X
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      – Code: eng
        Text: English
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        PageCount: 26
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      – SubjectFull: Damping (Mechanics)
        Type: general
      – SubjectFull: Impulse (Physics)
        Type: general
      – SubjectFull: Vibration isolation
        Type: general
      – SubjectFull: Hybrid systems
        Type: general
      – SubjectFull: Random vibration
        Type: general
      – SubjectFull: Vibration absorbers
        Type: general
      – SubjectFull: Single-degree-of-freedom systems
        Type: general
      – SubjectFull: Dynamical systems
        Type: general
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      – TitleFull: Analysis of Vibration Suppression Effect of Parallel Combined Damping NES System on Nonsmooth System.
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            NameFull: Qi, Xingke
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            NameFull: Zhang, Jianchao
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            NameFull: Wang, Jun
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            – D: 30
              M: 06
              Text: 6/30/2026
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              Y: 2026
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