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Dynamic Vibration Absorber for Squeal Noise Suppression in Simple Model Structures.

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Title: Dynamic Vibration Absorber for Squeal Noise Suppression in Simple Model Structures.
Authors: Rusli, Meifal1, Bur, Mulyadi1, Son, Lovely1
Source: International Journal of Structural Stability & Dynamics. Jun2015, Vol. 15 Issue 5, p-1. 18p.
Subjects: Vibration absorbers, Friction, Degrees of freedom, Stiffness (Mechanics), Contact mechanics
Abstract: In recent research it was found that squeal noise caused by friction-induced vibration can result in mode coupling instability. Presently, there is no method that can be reliably used to eliminate this kind of noise. This paper is focused on the use of dynamic vibration absorbers (DVAs) to suppress the generation of squeal noise. The performance of the DVA is investigated numerically for two simple cases, i.e. a simple two-degree of freedom model, and an L-shape space frame. It is found that the DVA can be applied to shifting or reducing the unstable region of mode coupling, by which the unstable region is removed from the operating condition. Particularly, the addition of the DVA in horizontal direction on the near-point-of-friction can possibly avoid unstable mode coupling. However, the addition in vertical direction will increase the possibility of squeal noise incident. Moreover, a high frequency DVA in horizontal direction at the near-point-of-friction shifts the unstable region into higher normal contact stiffness and higher friction coefficient. Consequently, addition of a mass with very stiff spring or a rigid mass in the horizontal direction can prevent the occurrence of unstable mode coupling, as long as it is not coupled with the vertical direction. If the added mass affects the dynamic behaviors in both vertical and horizontal directions, squeal noise in the original normal contact stiffness can still occur. [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: 108310606
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  Data: Dynamic Vibration Absorber for Squeal Noise Suppression in Simple Model Structures.
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  Data: <searchLink fieldCode="DE" term="%22Vibration+absorbers%22">Vibration absorbers</searchLink><br /><searchLink fieldCode="DE" term="%22Friction%22">Friction</searchLink><br /><searchLink fieldCode="DE" term="%22Degrees+of+freedom%22">Degrees of freedom</searchLink><br /><searchLink fieldCode="DE" term="%22Stiffness+%28Mechanics%29%22">Stiffness (Mechanics)</searchLink><br /><searchLink fieldCode="DE" term="%22Contact+mechanics%22">Contact mechanics</searchLink>
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  Label: Abstract
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  Data: In recent research it was found that squeal noise caused by friction-induced vibration can result in mode coupling instability. Presently, there is no method that can be reliably used to eliminate this kind of noise. This paper is focused on the use of dynamic vibration absorbers (DVAs) to suppress the generation of squeal noise. The performance of the DVA is investigated numerically for two simple cases, i.e. a simple two-degree of freedom model, and an L-shape space frame. It is found that the DVA can be applied to shifting or reducing the unstable region of mode coupling, by which the unstable region is removed from the operating condition. Particularly, the addition of the DVA in horizontal direction on the near-point-of-friction can possibly avoid unstable mode coupling. However, the addition in vertical direction will increase the possibility of squeal noise incident. Moreover, a high frequency DVA in horizontal direction at the near-point-of-friction shifts the unstable region into higher normal contact stiffness and higher friction coefficient. Consequently, addition of a mass with very stiff spring or a rigid mass in the horizontal direction can prevent the occurrence of unstable mode coupling, as long as it is not coupled with the vertical direction. If the added mass affects the dynamic behaviors in both vertical and horizontal directions, squeal noise in the original normal contact stiffness can still occur. [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:
      – Type: doi
        Value: 10.1142/S0219455414500783
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 18
        StartPage: -1
    Subjects:
      – SubjectFull: Vibration absorbers
        Type: general
      – SubjectFull: Friction
        Type: general
      – SubjectFull: Degrees of freedom
        Type: general
      – SubjectFull: Stiffness (Mechanics)
        Type: general
      – SubjectFull: Contact mechanics
        Type: general
    Titles:
      – TitleFull: Dynamic Vibration Absorber for Squeal Noise Suppression in Simple Model Structures.
        Type: main
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            NameFull: Rusli, Meifal
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            NameFull: Bur, Mulyadi
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            NameFull: Son, Lovely
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            – D: 01
              M: 06
              Text: Jun2015
              Type: published
              Y: 2015
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              Value: 15
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              Value: 5
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            – TitleFull: International Journal of Structural Stability & Dynamics
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