| Autor: |
Sophoclis Patsias, Dario DiMaio, Ibrahim A. Sever, Samson Cooper |
| Rok vydání: |
2018 |
| Předmět: |
|
| Zdroj: |
Model Validation and Uncertainty Quantification, Volume 3 ISBN: 9783319747927 |
| DOI: |
10.1007/978-3-319-74793-4_6 |
| Popis: |
Linear FE-models are commonly validated with measured data obtained from experimental test conducted under similar FE-simulated boundary conditions. However, measured data at higher or operational amplitudes of vibration often exhibit evidence of nonlinear characteristics. Research has proven that majority of the causes and sources of these nonlinearities are frequently local in nature while a large proportion of the structure can be represented using linear theory. This paper presents the experimental investigations conducted on an aircraft structure ranging from linear to nonlinear regime, the aim of the investigation was to understand the influence of connecting accessories or components to the proposed aircraft structure. Broadband, sine-sweeps and stepped-sine excitations were used to detect and characterise the nature of the nonlinear behaviour in the assembly. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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