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Teaching structural dynamics in aeronautic engineering: A hands-on approach using frequency response analysis of a quadrotor UAV.

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Title: Teaching structural dynamics in aeronautic engineering: A hands-on approach using frequency response analysis of a quadrotor UAV.
Authors: Villalobos-Luna, José de Jesús1 (AUTHOR) jose.villalobosln@uanl.edu.mx, Ledezma-Ramírez, Diego Francisco1 (AUTHOR), Rojo-Rodríguez, Edgar Ulises1 (AUTHOR), López-Cruz, Pedro1 (AUTHOR)
Source: International Journal of Mechanical Engineering Education. Jul2026, Vol. 54 Issue 3, p651-671. 21p.
Subjects: Structural dynamics, Quadrotor helicopters, Frequency response, Dynamic stability, Aerospace engineering, Acoustic vibrations, Feedback control systems
Abstract: This work presents a teaching approach for postgraduate aeronautic engineering students, fo-cusing on the analysis and understanding of structural dynamics in complex, real-world applications rather than simplified models. Using a commercial quadrotor as a case study, students investigate critical issues affecting lateral stability—specifically, abnormal vibrations and unintended sliding during autonomous self-leveling. These stability challenges prompt students to explore whether the issues stem from control limitations or structural deficiencies. Students employ the frequency response function (FRF) through impact hammer testing to characterize the natural frequencies of the quadrotor's arms and propellers, identifying potential resonances caused by the propulsion system. The experimental analysis offers students insights into structural solutions and control system reprogramming to counteract resonance-induced vibrations, improve stability, and enhance autonomous functionality. This hands-on approach allows students to directly apply concepts of structural dynamics to complex aerospace systems, preparing them for advanced prob-lem-solving in real-world engineering environments. [ABSTRACT FROM AUTHOR]
Copyright of International Journal of Mechanical Engineering Education is the property of Sage Publications Inc. 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
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PubType: Academic Journal
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  Data: Teaching structural dynamics in aeronautic engineering: A hands-on approach using frequency response analysis of a quadrotor UAV.
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  Data: <searchLink fieldCode="DE" term="%22Structural+dynamics%22">Structural dynamics</searchLink><br /><searchLink fieldCode="DE" term="%22Quadrotor+helicopters%22">Quadrotor helicopters</searchLink><br /><searchLink fieldCode="DE" term="%22Frequency+response%22">Frequency response</searchLink><br /><searchLink fieldCode="DE" term="%22Dynamic+stability%22">Dynamic stability</searchLink><br /><searchLink fieldCode="DE" term="%22Aerospace+engineering%22">Aerospace engineering</searchLink><br /><searchLink fieldCode="DE" term="%22Acoustic+vibrations%22">Acoustic vibrations</searchLink><br /><searchLink fieldCode="DE" term="%22Feedback+control+systems%22">Feedback control systems</searchLink>
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  Data: This work presents a teaching approach for postgraduate aeronautic engineering students, fo-cusing on the analysis and understanding of structural dynamics in complex, real-world applications rather than simplified models. Using a commercial quadrotor as a case study, students investigate critical issues affecting lateral stability—specifically, abnormal vibrations and unintended sliding during autonomous self-leveling. These stability challenges prompt students to explore whether the issues stem from control limitations or structural deficiencies. Students employ the frequency response function (FRF) through impact hammer testing to characterize the natural frequencies of the quadrotor's arms and propellers, identifying potential resonances caused by the propulsion system. The experimental analysis offers students insights into structural solutions and control system reprogramming to counteract resonance-induced vibrations, improve stability, and enhance autonomous functionality. This hands-on approach allows students to directly apply concepts of structural dynamics to complex aerospace systems, preparing them for advanced prob-lem-solving in real-world engineering environments. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of International Journal of Mechanical Engineering Education is the property of Sage Publications Inc. 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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        Value: 10.1177/03064190251318967
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      – Code: eng
        Text: English
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        PageCount: 21
        StartPage: 651
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        Type: general
      – SubjectFull: Quadrotor helicopters
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      – SubjectFull: Frequency response
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      – SubjectFull: Dynamic stability
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      – SubjectFull: Aerospace engineering
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      – SubjectFull: Acoustic vibrations
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      – SubjectFull: Feedback control systems
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      – TitleFull: Teaching structural dynamics in aeronautic engineering: A hands-on approach using frequency response analysis of a quadrotor UAV.
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            NameFull: Villalobos-Luna, José de Jesús
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              M: 07
              Text: Jul2026
              Type: published
              Y: 2026
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