Campus Units
Civil, Construction and Environmental Engineering
Document Type
Article
Publication Version
Accepted Manuscript
Publication Date
4-15-2016
Journal or Book Title
Engineering Structures
Volume
113
First Page
287
Last Page
298
DOI
10.1016/j.engstruct.2016.01.035
Abstract
Implementation of high performance controllable damping devices can ameliorate cost-effectiveness of structural systems for mitigation of natural hazards. However, the applications of these damping systems are limited due to a lack of (1) mechanical robustness; (2) electrical reliability; and (3) large resisting force capability. To broaden the implementation of modern damping systems, a novel semi-active damping device is proposed. The device, termed Banded Rotary Friction Device (BRFD), has enhanced applicability compared to other proposed damping systems due to its cost-effectiveness, high damping performance, mechanical robustness, and technological simplicity. Its mechanical principle is based on a band brake, which results in a high amplification of the applied force while enabling a variable control force. The theoretical model of the BRFD is presented and experimentally verified by subjecting a prototype to various harmonic loads. Results show that the prototype BRFD is capable of a maximum force of 45 kN (10 kips) using only a 267 N (60 lb) actuation force, therefore providing a mechanical advantage of 169. A 3-stage dynamic model previously developed by the authors can successfully be used to model the dynamic behavior of the BRFD.
Copyright Owner
Elsevier Ltd
Copyright Date
2016
Language
en
File Format
application/pdf
Recommended Citation
Downey, Austin R.J.; Cao, Liang; Laflamme, Simon; Taylor, Douglas; and Ricles, James, "High capacity variable friction damper based on band brake technology" (2016). Civil, Construction and Environmental Engineering Publications. 96.
https://lib.dr.iastate.edu/ccee_pubs/96
Included in
Civil Engineering Commons, Construction Engineering and Management Commons, Environmental Engineering Commons, Other Civil and Environmental Engineering Commons, Structural Engineering Commons
Comments
This is a manuscript of an article Engineering Structures, 2016, 113; 287-298. Doi: 10.1016/j.engstruct.2016.01.035. Posted with permission.