Determination of optimal coupling stiffness using modal updating techniques for Stiffened Plates

K. Shrivastava*, Kiran Vijayan, Vikas Arora

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Abstrakt

Stiffened structures are often utilized as structural members for numerous applications in various fields of engineering like Civil, Automobiles, Naval, Aerospace, etc. Thus analyzing stiffed structure for their structural integrity become pivotal. Simplest instance of a stiffened structure could be a plate with a beam acting as a reinforcement. The presented study focuses on Modal analysis of a stiffened plate comprising of a base plate and a beam attached to it in the longitudinal direction. Numerical analysis is carried out by formulating a FE model for the beam and plate. The plate and beam elements are coupled using discrete spring element. The capability of the model is verified by comparing the natural frequencies obtained through experimental techniques. A numerical based model updating was carried out to determine the optimal spring stiffness using Latin hypercube sampling. The optimal values of the spring stiffness were determined which reduced the error in the natural frequencies.
OriginalsprogEngelsk
TidsskriftProcedia Structural Integrity
Vol/bind14
Sider (fra-til)556-563
ISSN2452-3216
DOI
StatusUdgivet - 2019
Begivenhed2ND International Conference on Structural Integrity and Exhibition - Hyderabad, Indien
Varighed: 25. aug. 201827. aug. 2018
Konferencens nummer: 2018
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Konference

Konference2ND International Conference on Structural Integrity and Exhibition
Nummer2018
LandIndien
ByHyderabad
Periode25/08/201827/08/2018
Internetadresse

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