期刊
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
卷 60-61, 期 -, 页码 799-809出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ymssp.2015.01.035
关键词
Nonlinear absorber; Detached resonance curve; Quasiperiodic response; Numerical continuation; Bifurcation tracking; Domains of attraction
资金
- European Union (ERC Starting Grant) [NoVib 307265]
The nonlinear tuned vibration absorber (NLTVA) is a recently developed nonlinear absorber which generalizes Den Hartog's equal peak method to nonlinear systems. If the purposeful introduction of nonlinearity can enhance system performance, it can also give rise to adverse dynamical phenomena, including detached resonance curves and quasiperiodic regimes of motion. Through the combination of numerical continuation of periodic solutions, bifurcation detection and tracking, and global analysis, the present study identifies boundaries in the NLTVA parameter space delimiting safe, unsafe and unacceptable operations. The sensitivity of these boundaries to uncertainty in the NLTVA parameters is also investigated. (C) 2015 Elsevier Ltd. All rights reserved.
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