Energy Dissipation Control of Hysteretic Dampers

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Abstract

The efficiency of a damper depends on the amount of energy dissipation during a typical cycle experienced by the damper. For viscous dampers this leads to substantial frequency dependence, and typically implies that optimal tuning of a passive viscous damper is valid only for a particular mode. In contrast the energy dissipated by a hysteretic damper is independent of frequency, but depends on the amplitude and also contains a stiffness component. The present paper presents a procedure for predicting the magnitude of the closed hysteresis loops and thereby the energy dissipation, and a procedure for on-line tuning of the damper properties for random response. The approach is illustrated for the bilinear elasto-plastic damper, where the optimal relation between yield level and displacement amplitude is derived.
Original languageEnglish
Title of host publicationProceedings of the 5th computational Stochastic mechanics conference
Publication date2006
Publication statusPublished - 2006
Eventcomputational Stochastic mechanics conference -
Duration: 1 Jan 2006 → …
Conference number: 5

Conference

Conferencecomputational Stochastic mechanics conference
Number5
Period01/01/2006 → …

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