Conference paper
Practical design of a nonlinear tuned vibration absorber
University of Liege1
Department of Mechanical Engineering, Technical University of Denmark2
Solid Mechanics, Department of Mechanical Engineering, Technical University of Denmark3
Department of Electrical Engineering, Technical University of Denmark4
Acoustic Technology, Department of Electrical Engineering, Technical University of Denmark5
The aim of the paper is to develop a new nonlinear tuned vibration absorber (NLTVA) capable of mitigating the vibrations of nonlinear systems which are known to exhibit frequency-energy-dependent oscillations. A nonlinear generalization of Den Hartog's equal-peak method is proposed to ensure equal peaks in the nonlinear frequency response for a large range of forcing amplitudes.
An analytical tuning procedure is developed and provides the load-deflection characteristic of the NLTVA. Based on this prescribed relation, the NLTVA design is performed by two different approaches, namely thanks to (i) analytical formulas of uniform cantilever and doubly-clamped beams and (ii) numerical shape optimization of beams with varying width and thickness.
A primary system composed of a cantilever beam with a geometrically nonlinear component at its free end serves to illustrate the proposed methodology.
| Language: | English |
|---|---|
| Publisher: | Katholieke Universiteit Leuven |
| Year: | 2014 |
| Pages: | 3029-3046 |
| Proceedings: | International Conference on Noise and Vibration Engineering (ISMA 2014) and International Conference on Uncertainty in Structural Dynamics (USD 2014) |
| Types: | Conference paper |
| ORCIDs: | Wang, Fengwen and Jensen, Jakob Søndergaard |
