Estimating Linear Joint Stiffness and Damping Using a Frequency-Based Optimization Framework and the Emerging Concept of DyDis

Marie Brons; Francesco Trainotti; Daniel J. Rixen

doi:10.1007/978-3-031-68897-3_4

Estimating Linear Joint Stiffness and Damping Using a Frequency-Based Optimization Framework and the Emerging Concept of DyDis

Marie Brons, Francesco Trainotti, Daniel J. Rixen

Chair of Applied Mechanics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

Accurate estimation of stiffness and damping of linear bolted joints is a challenge. Commonly employed approaches using frequency-based substructuring techniques can fail if the measurement quality is not good enough. Even a minimal noise level can significantly impact the accuracy of estimations due to matrix inversions. This study proposes a novel approach that combines an optimization framework utilizing frequency-based substructuring with the emerging concept of Dynamic Disturbance (DyDis) to enhance the robustness of linear bolted joint parameter estimation.

Original language	English
Title of host publication	Dynamic Substructures - Proceedings of the 42nd IMAC, A Conference and Exposition on Structural Dynamics 2024
Editors	Walter D’Ambrogio, Dan Roettgen, Maarten van der Seijs
Publisher	Springer
Pages	37-42
Number of pages	6
ISBN (Print)	9783031688966
DOIs	https://doi.org/10.1007/978-3-031-68897-3_4
State	Published - 2025
Event	42nd IMAC, A Conference and Exposition on Structural Dynamics, IMAC 2024 - Orlando, United States Duration: 29 Jan 2024 → 1 Feb 2024

Publication series

Name	Conference Proceedings of the Society for Experimental Mechanics Series
ISSN (Print)	2191-5644
ISSN (Electronic)	2191-5652

Conference

Conference	42nd IMAC, A Conference and Exposition on Structural Dynamics, IMAC 2024
Country/Territory	United States
City	Orlando
Period	29/01/24 → 1/02/24

Keywords

Frequency-based substructuring
Joint identification
Optimization

Access to Document

10.1007/978-3-031-68897-3_4

Cite this

Brons, M., Trainotti, F., & Rixen, D. J. (2025). Estimating Linear Joint Stiffness and Damping Using a Frequency-Based Optimization Framework and the Emerging Concept of DyDis. In W. D’Ambrogio, D. Roettgen, & M. van der Seijs (Eds.), Dynamic Substructures - Proceedings of the 42nd IMAC, A Conference and Exposition on Structural Dynamics 2024 (pp. 37-42). (Conference Proceedings of the Society for Experimental Mechanics Series). Springer. https://doi.org/10.1007/978-3-031-68897-3_4

Brons, Marie ; Trainotti, Francesco ; Rixen, Daniel J. / Estimating Linear Joint Stiffness and Damping Using a Frequency-Based Optimization Framework and the Emerging Concept of DyDis. Dynamic Substructures - Proceedings of the 42nd IMAC, A Conference and Exposition on Structural Dynamics 2024. editor / Walter D’Ambrogio ; Dan Roettgen ; Maarten van der Seijs. Springer, 2025. pp. 37-42 (Conference Proceedings of the Society for Experimental Mechanics Series).

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abstract = "Accurate estimation of stiffness and damping of linear bolted joints is a challenge. Commonly employed approaches using frequency-based substructuring techniques can fail if the measurement quality is not good enough. Even a minimal noise level can significantly impact the accuracy of estimations due to matrix inversions. This study proposes a novel approach that combines an optimization framework utilizing frequency-based substructuring with the emerging concept of Dynamic Disturbance (DyDis) to enhance the robustness of linear bolted joint parameter estimation.",

keywords = "Frequency-based substructuring, Joint identification, Optimization",

author = "Marie Brons and Francesco Trainotti and Rixen, {Daniel J.}",

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Brons, M, Trainotti, F & Rixen, DJ 2025, Estimating Linear Joint Stiffness and Damping Using a Frequency-Based Optimization Framework and the Emerging Concept of DyDis. in W D’Ambrogio, D Roettgen & M van der Seijs (eds), Dynamic Substructures - Proceedings of the 42nd IMAC, A Conference and Exposition on Structural Dynamics 2024. Conference Proceedings of the Society for Experimental Mechanics Series, Springer, pp. 37-42, 42nd IMAC, A Conference and Exposition on Structural Dynamics, IMAC 2024, Orlando, United States, 29/01/24. https://doi.org/10.1007/978-3-031-68897-3_4

Estimating Linear Joint Stiffness and Damping Using a Frequency-Based Optimization Framework and the Emerging Concept of DyDis. / Brons, Marie; Trainotti, Francesco; Rixen, Daniel J.
Dynamic Substructures - Proceedings of the 42nd IMAC, A Conference and Exposition on Structural Dynamics 2024. ed. / Walter D’Ambrogio; Dan Roettgen; Maarten van der Seijs. Springer, 2025. p. 37-42 (Conference Proceedings of the Society for Experimental Mechanics Series).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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PY - 2025

Y1 - 2025

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AB - Accurate estimation of stiffness and damping of linear bolted joints is a challenge. Commonly employed approaches using frequency-based substructuring techniques can fail if the measurement quality is not good enough. Even a minimal noise level can significantly impact the accuracy of estimations due to matrix inversions. This study proposes a novel approach that combines an optimization framework utilizing frequency-based substructuring with the emerging concept of Dynamic Disturbance (DyDis) to enhance the robustness of linear bolted joint parameter estimation.

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KW - Optimization

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Brons M, Trainotti F, Rixen DJ. Estimating Linear Joint Stiffness and Damping Using a Frequency-Based Optimization Framework and the Emerging Concept of DyDis. In D’Ambrogio W, Roettgen D, van der Seijs M, editors, Dynamic Substructures - Proceedings of the 42nd IMAC, A Conference and Exposition on Structural Dynamics 2024. Springer. 2025. p. 37-42. (Conference Proceedings of the Society for Experimental Mechanics Series). doi: 10.1007/978-3-031-68897-3_4

Estimating Linear Joint Stiffness and Damping Using a Frequency-Based Optimization Framework and the Emerging Concept of DyDis

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