Passive implementation of rate-independent linear damping using a negative stiffness element

H. Luo, C. Chong, K. Ikago, A. Keivan, B. M. Phillips

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

It is well known that rate-independent linear damping (RILD) benefits a low-frequency structure by yielding a lower restoring force, thereby lowering the acceleration response compared to other damping types with a similar displacement reduction. Its non-causality, however, poses major difficulties in time-domain analysis and in implementing it as a physical device. In this study, a passive device, in which Maxwell and negative stiffness elements are arranged in parallel, is proposed to simulate the behavior of RILD. Both frequency- and time-domain analyses are conducted to investigate the performance of a low-frequency structure incorporated with the proposed model. Moreover, to achieve simultaneous reductions in floor response acceleration and displacement, the feasibility of the proposed model to mimic RILD is also verified.

Original languageEnglish
Title of host publication11th National Conference on Earthquake Engineering 2018, NCEE 2018
Subtitle of host publicationIntegrating Science, Engineering, and Policy
PublisherEarthquake Engineering Research Institute
Pages5168-5178
Number of pages11
ISBN (Electronic)9781510873254
Publication statusPublished - 2018
Event11th National Conference on Earthquake Engineering 2018: Integrating Science, Engineering, and Policy, NCEE 2018 - Los Angeles, United States
Duration: 2018 Jun 252018 Jun 29

Publication series

Name11th National Conference on Earthquake Engineering 2018, NCEE 2018: Integrating Science, Engineering, and Policy
Volume8

Conference

Conference11th National Conference on Earthquake Engineering 2018: Integrating Science, Engineering, and Policy, NCEE 2018
CountryUnited States
CityLos Angeles
Period18/6/2518/6/29

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology

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