The Tuned Liquid Damper (TLD) is modelled numerically as an equivalent tuned mass damper with non-linear sti!ness and damping. These parameters are derived from extensive experimental results described in References 1 and 2. This Non-linear Sti!ness and Damping (NSD) model captures the behaviour of
Instabilities In A Non-linear Model Of A Passive Damper
β Scribed by M.L. Tinker; M.A. Cutchins
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 454 KB
- Volume
- 176
- Category
- Article
- ISSN
- 0022-460X
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β¦ Synopsis
During a study of the dynamic characteristics of a wire rope vibration isolation system constructed with helical isolators, an interesting instability was observed. Following an experimental investigation of this system, a semi-empirical model having non-linear stiffness, (n)th power velocity damping, and variable Coulomb-type friction damping was developed. Results obtained using ACSL compare well with experimental data. The primary emphasis of this paper, however, centers on the instabilities and large-response behavior of this semi-empirical model. Stabilizing effects are discussed.
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