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Frequency response function-based explicit framework for dynamic identification in human-structure systems
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Wei, Xiaojun and Živanović, Stana (2018) Frequency response function-based explicit framework for dynamic identification in human-structure systems. Journal of Sound and Vibration, 422 . pp. 453-470. doi:10.1016/j.jsv.2018.02.015 ISSN 0022-460X.
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Official URL: https://doi.org/10.1016/j.jsv.2018.02.015
Abstract
The aim of this paper is to propose a novel theoretical framework for dynamic identification in a structure occupied by a single human. The framework enables the prediction of the dynamics of the human-structure system from the known properties of the individual system components, the identification of human body dynamics from the known dynamics of the empty structure and the human-structure system and the identification of the properties of the structure from the known dynamics of the human and the human-structure system. The novelty of the proposed framework is the provision of closed-form solutions in terms of frequency response functions obtained by curve fitting measured data. The advantages of the framework over existing methods are that there is neither need for nonlinear optimisation nor need for spatial/modal models of the empty structure and the human-structure system. In addition, the second-order perturbation method is employed to quantify the effect of uncertainties in human body dynamics on the dynamic identification of the empty structure and the human-structure system. The explicit formulation makes the method computationally efficient and straightforward to use. A series of numerical examples and experiments are provided to illustrate the working of the method.
Item Type: | Journal Article | ||||||||
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Subjects: | T Technology > TA Engineering (General). Civil engineering (General) | ||||||||
Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||||||
Library of Congress Subject Headings (LCSH): | Structural engineering, Structural dynamics -- Mathematical models, Frequency response (Dynamics), System identification | ||||||||
Journal or Publication Title: | Journal of Sound and Vibration | ||||||||
Publisher: | Elsevier Ltd. | ||||||||
ISSN: | 0022-460X | ||||||||
Official Date: | 26 May 2018 | ||||||||
Dates: |
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Volume: | 422 | ||||||||
Page Range: | pp. 453-470 | ||||||||
DOI: | 10.1016/j.jsv.2018.02.015 | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Access rights to Published version: | Open Access (Creative Commons) | ||||||||
Date of first compliant deposit: | 28 March 2018 | ||||||||
Date of first compliant Open Access: | 19 March 2019 | ||||||||
RIOXX Funder/Project Grant: |
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