A numerical and experimental study on passive damping of a 3D structure using viscoelastic materials

M.W.L.M. Rijnen, F. Pasteuning, R.H.B. Fey, G. Schothorst, van, H. Nijmeijer

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review

1 Citaat (Scopus)
6 Downloads (Pure)

Samenvatting

Structural vibrations often cause problems in high precision instruments, which may be solved by introducing passive damping. In this paper, different ways of introducing passive damping via viscoelastic materials (VEM) are discussed. Discrete damping elements and constrained layer (CL) configurations are selected and used to efficiently damp an open aluminum box. The steady-state dynamics of the box, including frequency dependent VEM properties, are simulated using a finite element (FE) model. This model is used to find a design that introduces high damping while taking into account design constraints. The simulation results are experimentally validated using both modal parameters and frequency response functions (FRFs). For the computation of model based FRFs, a new method based on modal superposition and frequency interpolation of modal parameters is proposed. Model based results and experimental results show good resemblance, even without updating the model with deviations in the realized structure.
Originele taal-2Engels
TitelLeuven Conference on Noise and Vibration Engineering (ISMA 2014), September 15-17, 2014, Leuven, Belgium,
Pagina's605-618
StatusGepubliceerd - 2014
Evenement26th International Conference on Noise and Vibration Engineering (ISMA 2014) - Leuven, België
Duur: 15 sep 201417 sep 2014
Congresnummer: 26

Congres

Congres26th International Conference on Noise and Vibration Engineering (ISMA 2014)
Verkorte titelISMA 2014
Land/RegioBelgië
StadLeuven
Periode15/09/1417/09/14
AnderInternational Conference on Noise and Vibration Analysis, Leuven, Belgium

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