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Paper
Title

Updating Large Models for Jacket Type Offshore Platforms from Limited Modal Data

Year: 1394
COI: NSMI17_189
Language: EnglishView: 353
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Authors

Farhad Hosseinlou - PHD Candidate, Department of Civil Engineering, University of Tabriz,
Alireza Mojtahedi - Assistant Professor, Department of Civil Engineering, University of Tabriz,

Abstract:

The marine industry requires continued development of new technologies in order to produce oil. Hence, an important requirement in design is to be able to compare experimental results from prototype structures with predicted results from a corresponding finite element model (FEM). In this context, model updating may be defined as the fit of an existing analytical model in the light of measured vibration test. After fitting, the updated model is expected to represent the dynamic behavior of the structure more accurately. In this way, this work presents a direct based updating study of a reduced scale four-story spatial frame jacket structure fabricated and tested at the Laboratory of Structural Dynamics. Also, an efficient model updating process was presented with limited modal data, which uses modal data in order to improve the correlation between the experimental and analytical models. The proposed technique is computationally efficient since it does not require iterations. It updates the mass and stiffness matrix such that they are compatible with the modal data of the observed modes

Keywords:

Offshore jacket platforms , model updating , experimental modal analysis , limited modal data

Paper COI Code

This Paper COI Code is NSMI17_189. Also You can use the following address to link to this article. This link is permanent and is used as an article registration confirmation in the Civilica reference:

https://civilica.com/doc/474506/

How to Cite to This Paper:

If you want to refer to this Paper in your research work, you can simply use the following phrase in the resources section:
Hosseinlou, Farhad and Mojtahedi, Alireza,1394,Updating Large Models for Jacket Type Offshore Platforms from Limited Modal Data,17th Marine Industries Conference,Kish Island,https://civilica.com/doc/474506

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Type of center: دانشگاه دولتی
Paper count: 23,245
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