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Dynamic characteristics investigation of variable stator vanes mechanism considering mixed clearances.

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Title: Dynamic characteristics investigation of variable stator vanes mechanism considering mixed clearances.
Authors: Luo, Zhong1,2,3 (AUTHOR) zhluo@mail.neu.edu.cn, Ji, Haiyang1,2 (AUTHOR), Zhang, Hongwei1,2 (AUTHOR), Xu, Chunyang1,2,4 (AUTHOR), Yao, Sibo1,2 (AUTHOR), Zhao, Jiang1,2 (AUTHOR), Pang, Chao1,2 (AUTHOR)
Source: Mechanics Based Design of Structures & Machines. 2025, Vol. 53 Issue 5, p3663-3683. 21p.
Subjects: Dynamic models, Stators, Rotational motion, Engines, Angles
Abstract: The Variable Stator Vanes (VSV) mechanism enhances the stability margin of aero engines by adjusting the vane angles to prevent surging, but the clearances of kinematic joint will affect rotation accuracy of vanes. To investigate the dynamic characteristics of VSV mechanism that simultaneously consider spherical clearance and three-dimensional (3D) rotational joint clearance, an analytical method was developed to study the dynamic characteristics of VSV mechanism Vanes considering mixed clearance. Firstly, a dynamic model incorporating mixed clearances is developed and validated experimentally. Then, the effects of different clearance types, clearance sizes, and mixed clearances are analyzed on the dynamic characteristics of the vane. Finally, the results indicate that an increase in clearance leads to a greater susceptibility of the dynamic characteristics being affected. Taking into account the effects of mixed clearances on dynamic characteristics, which are not merely a straightforward summation of the impacts of two types of clearances, it is crucial to consider the interplay between different types of clearances. The study provides a basis for the modeling and dynamic characteristics analysis of VSV mechanisms taking into account mixed clearances. [ABSTRACT FROM AUTHOR]
Copyright of Mechanics Based Design of Structures & Machines is the property of Taylor & Francis Ltd 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.)
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DbLabel: Engineering Source
An: 184650830
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: Dynamic characteristics investigation of variable stator vanes mechanism considering mixed clearances.
– Name: Author
  Label: Authors
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  Data: <searchLink fieldCode="AR" term="%22Luo%2C+Zhong%22">Luo, Zhong</searchLink><relatesTo>1,2,3</relatesTo> (AUTHOR)<i> zhluo@mail.neu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Ji%2C+Haiyang%22">Ji, Haiyang</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Hongwei%22">Zhang, Hongwei</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Xu%2C+Chunyang%22">Xu, Chunyang</searchLink><relatesTo>1,2,4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yao%2C+Sibo%22">Yao, Sibo</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhao%2C+Jiang%22">Zhao, Jiang</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Pang%2C+Chao%22">Pang, Chao</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Mechanics+Based+Design+of+Structures+%26+Machines%22">Mechanics Based Design of Structures & Machines</searchLink>. 2025, Vol. 53 Issue 5, p3663-3683. 21p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Dynamic+models%22">Dynamic models</searchLink><br /><searchLink fieldCode="DE" term="%22Stators%22">Stators</searchLink><br /><searchLink fieldCode="DE" term="%22Rotational+motion%22">Rotational motion</searchLink><br /><searchLink fieldCode="DE" term="%22Engines%22">Engines</searchLink><br /><searchLink fieldCode="DE" term="%22Angles%22">Angles</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The Variable Stator Vanes (VSV) mechanism enhances the stability margin of aero engines by adjusting the vane angles to prevent surging, but the clearances of kinematic joint will affect rotation accuracy of vanes. To investigate the dynamic characteristics of VSV mechanism that simultaneously consider spherical clearance and three-dimensional (3D) rotational joint clearance, an analytical method was developed to study the dynamic characteristics of VSV mechanism Vanes considering mixed clearance. Firstly, a dynamic model incorporating mixed clearances is developed and validated experimentally. Then, the effects of different clearance types, clearance sizes, and mixed clearances are analyzed on the dynamic characteristics of the vane. Finally, the results indicate that an increase in clearance leads to a greater susceptibility of the dynamic characteristics being affected. Taking into account the effects of mixed clearances on dynamic characteristics, which are not merely a straightforward summation of the impacts of two types of clearances, it is crucial to consider the interplay between different types of clearances. The study provides a basis for the modeling and dynamic characteristics analysis of VSV mechanisms taking into account mixed clearances. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Mechanics Based Design of Structures & Machines is the property of Taylor & Francis Ltd 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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      – Type: doi
        Value: 10.1080/15397734.2024.2434556
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      – Code: eng
        Text: English
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        PageCount: 21
        StartPage: 3663
    Subjects:
      – SubjectFull: Dynamic models
        Type: general
      – SubjectFull: Stators
        Type: general
      – SubjectFull: Rotational motion
        Type: general
      – SubjectFull: Engines
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      – SubjectFull: Angles
        Type: general
    Titles:
      – TitleFull: Dynamic characteristics investigation of variable stator vanes mechanism considering mixed clearances.
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          Name:
            NameFull: Luo, Zhong
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            NameFull: Ji, Haiyang
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            NameFull: Zhang, Hongwei
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            NameFull: Yao, Sibo
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            NameFull: Zhao, Jiang
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            – D: 01
              M: 05
              Text: 2025
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              Y: 2025
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