Full Dynamic Compound Inverse Method: Extension to General and Rayleigh damping
| Autor: | Egidio Rizzi, Fabio Pioldi |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Engineering
0211 other engineering and technologies Computational Mechanics 020101 civil engineering Ocean Engineering 02 engineering and technology 0201 civil engineering Element-level system identification Structural and modal dynamic identification Control theory Consistency (statistics) Settore ICAR/08 - Scienza delle Costruzioni Inverse method 021110 strategic defence & security studies Full Dynamic Compound Inverse Method (FDCIM) Iterative optimization algorithm Estimated unknown seismic input business.industry Applied Mathematics Mechanical Engineering Frame (networking) Extension (predicate logic) Computational Mathematics Identification (information) Noise Modal Computational Theory and Mathematics Benchmark (computing) business Algorithm |
| Popis: | The present paper takes from the original output-only identification approach named Full Dynamic Compound Inverse Method (FDCIM), recently published on this journal by the authors, and proposes an innovative, much enhanced version, in the description of more general forms of structural damping, including for classically adopted Rayleigh damping. This has led to an extended FDCIM formulation, which offers superior performance, on all the targeted identification parameters, namely: modal properties, Rayleigh damping coefficients, structural features at the element-level and input seismic excitation time history. Synthetic earthquake-induced structural response signals are adopted as input channels for the FDCIM approach, towards comparison and validation. The identification algorithm is run first on a benchmark 3-storey shear-type frame, and then on a realistic 10-storey frame, also by considering noise added to the response signals. Consistency of the identification results is demonstrated, with definite superiority of this latter FDCIM proposal. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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