Extending modal testing technology for model validation of engineering structures with sparse nonlinearities: A first case study
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- 作者：Arnaldo delli Carri ; a.dellicarri@bristol.ac.uk" class="auth_mail" title="E-mail the corresponding author ; B. Weekes ; Dario Di Maio ; D.J. Ewins
- 关键词：Modal testing ; Nonlinear structures ; Model upgrading ; Model updating ; Model validation
- 刊名：Mechanical Systems and Signal Processing
- 出版年：2017
- 出版时间：1 February 2017
- 年：2017
- 卷：84
- 期：part_PB
- 页码：97-115
- 全文大小：3880 K
文摘
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Outlined a pragmatic and data-driven approach to the modal testing of nonlinear structures.
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Studied a reference test-structure (Wing-Pylon) following the mentioned approach.
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Addressed the identification of the nonlinear elements that act over the Underlying Linear Model.
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Augmented (Upgrade) and corrected (Update) the ULM, accommodating those elements.
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Checked the validity of the upgraded model across structural modifications.