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Study on the design and structural optimization of excitation blocks for vibrators.

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Title: Study on the design and structural optimization of excitation blocks for vibrators.
Authors: Hong, Li1 cidphongli@163.com, Tian, Kewen1,2 cidptiankewen@163.com, Zhang, Qiang1,3 zhangqiang@cidp.edu.cn, Chen, Ning1 cidpchenning@163.com, Liu, Yize1 saqrliuyize@163.com
Source: Journal of Vibroengineering. May2026, Vol. 28 Issue 3, p617-636. 20p.
Subjects: Structural optimization, Parametric modeling, Vibration (Mechanics), Electromechanical effects, Vibrators, Multi-objective optimization, Power (Mechanics), Seismic waves
Abstract: The performance of vibrator-based seismic sources is fundamentally constrained by the trade-off between excitation force and motor driving power. To address this challenge, a physics-informed framework for the parametric modeling and multi-objective optimization of annular-sector eccentric blocks is proposed. Firstly, a unified geometric model is established to derive closed-form expressions for mass properties, which are then integrated into a coupled electromechanical dynamic model to link geometric configurations directly with force output and power demand. To enhance computational efficiency, an Extreme-Frequency Substitution Strategy (EFSS) is introduced to reformulate the complex full-band dynamic optimization into a simplified static problem. The primary novelty of this work is the integration of physics-based geometric modeling, electromechanical dynamics, and extreme-frequency optimization within a single analytical framework. Sobol global sensitivity analysis reveals that the outer and inner radii are the dominant design drivers, while thickness and sector angle influence performance primarily through higher-order interactions. Using the NSGA-II algorithm, an optimized design is obtained that achieves a 10.52 % reduction in average peak driving power, a 35.26 % reduction in mass, and a 56.36 % reduction in the moment of inertia, while maintaining the required excitation force. This framework provides a rigorous and energy-efficient methodology for the design of next-generation controlled seismic vibrators. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Vibroengineering is the property of Extrica 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
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  Label: Title
  Group: Ti
  Data: Study on the design and structural optimization of excitation blocks for vibrators.
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  Data: <searchLink fieldCode="AR" term="%22Hong%2C+Li%22">Hong, Li</searchLink><relatesTo>1</relatesTo><i> cidphongli@163.com</i><br /><searchLink fieldCode="AR" term="%22Tian%2C+Kewen%22">Tian, Kewen</searchLink><relatesTo>1,2</relatesTo><i> cidptiankewen@163.com</i><br /><searchLink fieldCode="AR" term="%22Zhang%2C+Qiang%22">Zhang, Qiang</searchLink><relatesTo>1,3</relatesTo><i> zhangqiang@cidp.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Chen%2C+Ning%22">Chen, Ning</searchLink><relatesTo>1</relatesTo><i> cidpchenning@163.com</i><br /><searchLink fieldCode="AR" term="%22Liu%2C+Yize%22">Liu, Yize</searchLink><relatesTo>1</relatesTo><i> saqrliuyize@163.com</i>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Vibroengineering%22">Journal of Vibroengineering</searchLink>. May2026, Vol. 28 Issue 3, p617-636. 20p.
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  Data: <searchLink fieldCode="DE" term="%22Structural+optimization%22">Structural optimization</searchLink><br /><searchLink fieldCode="DE" term="%22Parametric+modeling%22">Parametric modeling</searchLink><br /><searchLink fieldCode="DE" term="%22Vibration+%28Mechanics%29%22">Vibration (Mechanics)</searchLink><br /><searchLink fieldCode="DE" term="%22Electromechanical+effects%22">Electromechanical effects</searchLink><br /><searchLink fieldCode="DE" term="%22Vibrators%22">Vibrators</searchLink><br /><searchLink fieldCode="DE" term="%22Multi-objective+optimization%22">Multi-objective optimization</searchLink><br /><searchLink fieldCode="DE" term="%22Power+%28Mechanics%29%22">Power (Mechanics)</searchLink><br /><searchLink fieldCode="DE" term="%22Seismic+waves%22">Seismic waves</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The performance of vibrator-based seismic sources is fundamentally constrained by the trade-off between excitation force and motor driving power. To address this challenge, a physics-informed framework for the parametric modeling and multi-objective optimization of annular-sector eccentric blocks is proposed. Firstly, a unified geometric model is established to derive closed-form expressions for mass properties, which are then integrated into a coupled electromechanical dynamic model to link geometric configurations directly with force output and power demand. To enhance computational efficiency, an Extreme-Frequency Substitution Strategy (EFSS) is introduced to reformulate the complex full-band dynamic optimization into a simplified static problem. The primary novelty of this work is the integration of physics-based geometric modeling, electromechanical dynamics, and extreme-frequency optimization within a single analytical framework. Sobol global sensitivity analysis reveals that the outer and inner radii are the dominant design drivers, while thickness and sector angle influence performance primarily through higher-order interactions. Using the NSGA-II algorithm, an optimized design is obtained that achieves a 10.52 % reduction in average peak driving power, a 35.26 % reduction in mass, and a 56.36 % reduction in the moment of inertia, while maintaining the required excitation force. This framework provides a rigorous and energy-efficient methodology for the design of next-generation controlled seismic vibrators. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Vibroengineering is the property of Extrica 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:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.21595/jve.2026.25596
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 20
        StartPage: 617
    Subjects:
      – SubjectFull: Structural optimization
        Type: general
      – SubjectFull: Parametric modeling
        Type: general
      – SubjectFull: Vibration (Mechanics)
        Type: general
      – SubjectFull: Electromechanical effects
        Type: general
      – SubjectFull: Vibrators
        Type: general
      – SubjectFull: Multi-objective optimization
        Type: general
      – SubjectFull: Power (Mechanics)
        Type: general
      – SubjectFull: Seismic waves
        Type: general
    Titles:
      – TitleFull: Study on the design and structural optimization of excitation blocks for vibrators.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Hong, Li
      – PersonEntity:
          Name:
            NameFull: Tian, Kewen
      – PersonEntity:
          Name:
            NameFull: Zhang, Qiang
      – PersonEntity:
          Name:
            NameFull: Chen, Ning
      – PersonEntity:
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            NameFull: Liu, Yize
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          Dates:
            – D: 01
              M: 05
              Text: May2026
              Type: published
              Y: 2026
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              Value: 13928716
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              Value: 28
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              Value: 3
          Titles:
            – TitleFull: Journal of Vibroengineering
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