Abstract
Dynamic substructuring allows to describe an assembled structural system in terms of component subsystems. In experimental dynamic substructuring, the model of at least one (sub)system derives from experimental tests: this allows to consider systems that may be too difficult to model. The degrees of freedom (DoFs) of the assembled system can be partitioned into internal DoFs (not belonging to the couplings) and coupling DoFs. A possible application of experimental dynamic substructuring is substructure decoupling, i.e. the identification of the dynamic model of a structural subsystem embedded in a structural system known from experiments (assembled system) and connected to the rest of the system (residual subsystem) through a set of coupling DoFs. Coupling DoFs are often difficult to observe, either because they cannot be easily accessed or because they include rotational DoFs. However, whilst coupling DoFs and in particular rotational DoFs are needed when coupling together different subsystems, they are not essential in substructure decoupling, because the actions exchanged through the coupling DoFs are already included in the dynamic response of the assembled system. The most promising fields in substructure coupling are: coupling with configuration dependent interface and nonlinear coupling with localized nonlinearities. With reference to substructure decoupling, the most remarkable topics are: interface optimization, configuration dependent coupling conditions, and joint identification.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Bello, M., Sestieri, A., D’Ambrogio, W., La Gala, F.: Development of a rotational transducer based on bimorph PZT’s. Mech. Syst. Signal Process. 17(5), 1069–1081 (2003)
Brunetti, J., D’Ambrogio, W., Fregolent, A.: Contact problems in the framework of dynamic substructuring. In: Moens, D., Desmet, W., Pluymers, B., Rottiers, W. (eds.) Proceedings of ISMA 2018 and USD 2018, pp. 3987–3998. KU Leuven - Dept. Werktuigkunde (2018)
Brunetti, J., D’Ambrogio, W., Fregolent, A.: Dynamic coupling of substructures with sliding friction interfaces. Mech. Syst. Signal Process. 141, 106731 (2020)
Brunetti, J., D’Ambrogio, W., Fregolent, A.: Dynamic substructuring with time variant coupling conditions for the analysis of friction induced vibrations. In: Desmet, W., Pluymers, B., Moens, D., Vandemaele, S. (eds.) Proceedings of ISMA 2020 and USD 2020, pp. 3023–3032. KU Leuven - Dept. Werktuigkunde (2020)
Brunetti, J., D’Ambrogio, W., Fregolent, A.: Friction-induced vibrations in the framework of dynamic substructuring. Nonlinear Dyn. 103(4), 3301–3314 (2021)
Brunetti, J., D’Ambrogio, W., Fregolent, A.: Dynamic substructuring with a sliding contact interface. In: Linderholt, A., Allen, M.S., Mayes, R.L., Rixen, D. (eds.) Dynamics of Coupled Structures, vol. 4, pp. 105–116. Springer International Publishing (2018). https://doi.org/10.1007/978-3-319-74654-8_9
Brunetti, J., D’Ambrogio, W., Fregolent, A.: Dynamic substructuring with time variant interface due to sliding friction. In: Carcaterra, A., Paolone, A., Graziani, G. (eds.) Proceedings of XXIV AIMETA Conference 2019, pp. 1459–1474. Springer International Publishing (2020). https://doi.org/10.1007/978-3-030-41057-5_118
Craig, R., Bampton, M.: Coupling of substructures for dynamic analyses. AIAA J. 6(7), 1313–1319 (1968)
D’Ambrogio, W., Fregolent, A.: Substructure decoupling without using rotational DoFs: fact or fiction? Mech. Syst. Signal Process. 72–73, 499–512 (2016)
D’Ambrogio, W., Fregolent, A.: Replacement of unobservable coupling DoFs in substructure decoupling. Mech. Syst. Signal Process. 95, 380–396 (2017)
D’Ambrogio, W., Fregolent, A.: Substructure decoupling as the identification of a set of disconnection forces. Meccanica 52(13), 3117–3129 (2017)
Hurty, W.: Dynamic analysis of structural systems using component modes. AIAA J. 3(4), 678–685 (1965)
Kalaycioglu, T., Ozguven, H.: FRF decoupling of nonlinear systems. Mech. Syst. Signal Process. 102, 230–244 (2018)
Klaassen, S., van der Seijs, M., de Klerk, D.: System equivalent model mixing. Mech. Syst. Signal Process. 105, 90–112 (2018)
de Klerk, D., Rixen, D.J., Voormeeren, S.: General framework for dynamic substructuring: history, review, and classification of techniques. AIAA J. 46(5), 1169–1181 (2008)
Latini, F., Brunetti, J., D’Ambrogio, W., Allen, M., Fregolent, A.: Nonlinear substructuring in the modal domain: numerical validation and experimental verification in presence of localized nonlinearities. Nonlinear Dyn. 104(2), 1043–1067 (2021)
Latini, F., Brunetti, J., D’Ambrogio, W., Fregolent, A.: Substructures’ coupling with nonlinear connecting elements. Nonlinear Dyn. 99(2), 1643–1658 (2020)
Rubin, S.: Improved component-mode representation for structural dynamic analysis. AIAA J. 13(8), 995–1006 (1975)
Saeed, Z., Klaassen, S., Firrone, C., Berruti, T., Rixen, D.: Experimental joint identification using system equivalent model mixing in a bladed disk. J. Vib. Acoust. Trans. ASME 142(5), 051001 (2020)
Sestieri, A., Salvini, P., D’Ambrogio, W.: Reducing scatter from derived rotational data to determine the frequency response function of connected structures. Mech. Syst. Signal Process. 5(1), 25–44 (1991)
Stanbridge, A., Ewins, D.: Measurement of translational and angular vibration using a scanning laser Doppler vibrometer. Shock. Vib. 3, 141–152 (1996)
Voormeeren, S.N., Rixen, D.J.: A family of substructure decoupling techniques based on a dual assembly approach. Mech. Syst. Signal Process. 27, 379–396 (2012)
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2022 The Author(s), under exclusive license to Springer Nature Switzerland AG
About this paper
Cite this paper
D’Ambrogio, W., Fregolent, A. (2022). Experimental Dynamic Substructuring: Significance and Perspectives. In: Rega, G. (eds) 50+ Years of AIMETA. Springer, Cham. https://doi.org/10.1007/978-3-030-94195-6_19
Download citation
DOI: https://doi.org/10.1007/978-3-030-94195-6_19
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-030-94194-9
Online ISBN: 978-3-030-94195-6
eBook Packages: EngineeringEngineering (R0)