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Effect of thoracic muscle on dynamic performance of flexible flapping wings of insects.

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Title: Effect of thoracic muscle on dynamic performance of flexible flapping wings of insects.
Authors: Yang, Feng Liu1 (AUTHOR), Wang, Yan Qing1,2 (AUTHOR) wangyanqing@mail.neu.edu.cn
Source: Acta Mechanica. Feb2024, Vol. 235 Issue 2, p597-613. 17p.
Subjects: Insect wings, Insect flight, Aerodynamic load, Equations of motion, Elastic deformation
Abstract: The thorax is the central component of the insect flight drivetrain, making it essential to understand how thoracic muscles influence insect flight for flapping wing microair vehicle design. This paper presents a theoretical model that takes into account the influence of thoracic muscles on flapping wing motion with reference to real insects. The thoracic muscle effect is simulated by the chordwise torsional spring, whose stiffness is derived from a comparison test with the results of real insect experiments. The elastic deformation of the flexible flapping wing is modeled by the von Kármán nonlinear plate theory. The predictive quasi-steady aerodynamic model based on the blade element theory can estimate the aerodynamic force, and the modeling of the spanwise bending and twisting is done with quadratic polynomials. The equations of motion are solved using the Newmark-Raphson method. Results suggest that including the influence of thoracic muscles decreases cycle-averaged lift and power, but enhances the efficiency of lift production by 23%. Moreover, it also postpones pitching motion and reduces its amplitude, though the movement trends of the flapping motion remain approximately unchanged regardless of the inclusion of the thoracic muscle effect. [ABSTRACT FROM AUTHOR]
Copyright of Acta Mechanica is the property of Springer Nature 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: 175718716
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  Data: Effect of thoracic muscle on dynamic performance of flexible flapping wings of insects.
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  Data: <searchLink fieldCode="AR" term="%22Yang%2C+Feng+Liu%22">Yang, Feng Liu</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Yan+Qing%22">Wang, Yan Qing</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> wangyanqing@mail.neu.edu.cn</i>
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  Data: <searchLink fieldCode="JN" term="%22Acta+Mechanica%22">Acta Mechanica</searchLink>. Feb2024, Vol. 235 Issue 2, p597-613. 17p.
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  Data: <searchLink fieldCode="DE" term="%22Insect+wings%22">Insect wings</searchLink><br /><searchLink fieldCode="DE" term="%22Insect+flight%22">Insect flight</searchLink><br /><searchLink fieldCode="DE" term="%22Aerodynamic+load%22">Aerodynamic load</searchLink><br /><searchLink fieldCode="DE" term="%22Equations+of+motion%22">Equations of motion</searchLink><br /><searchLink fieldCode="DE" term="%22Elastic+deformation%22">Elastic deformation</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The thorax is the central component of the insect flight drivetrain, making it essential to understand how thoracic muscles influence insect flight for flapping wing microair vehicle design. This paper presents a theoretical model that takes into account the influence of thoracic muscles on flapping wing motion with reference to real insects. The thoracic muscle effect is simulated by the chordwise torsional spring, whose stiffness is derived from a comparison test with the results of real insect experiments. The elastic deformation of the flexible flapping wing is modeled by the von Kármán nonlinear plate theory. The predictive quasi-steady aerodynamic model based on the blade element theory can estimate the aerodynamic force, and the modeling of the spanwise bending and twisting is done with quadratic polynomials. The equations of motion are solved using the Newmark-Raphson method. Results suggest that including the influence of thoracic muscles decreases cycle-averaged lift and power, but enhances the efficiency of lift production by 23%. Moreover, it also postpones pitching motion and reduces its amplitude, though the movement trends of the flapping motion remain approximately unchanged regardless of the inclusion of the thoracic muscle effect. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Acta Mechanica is the property of Springer Nature 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: 10.1007/s00707-023-03757-2
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      – Code: eng
        Text: English
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        PageCount: 17
        StartPage: 597
    Subjects:
      – SubjectFull: Insect wings
        Type: general
      – SubjectFull: Insect flight
        Type: general
      – SubjectFull: Aerodynamic load
        Type: general
      – SubjectFull: Equations of motion
        Type: general
      – SubjectFull: Elastic deformation
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      – TitleFull: Effect of thoracic muscle on dynamic performance of flexible flapping wings of insects.
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              Text: Feb2024
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              Y: 2024
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