Proceedings of the International Conference of Mechanical Engineering (ICOME-2022)

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Software Application for Stiffness Relaxation New Method of Bouc-Wen Hysteresis Differential Model Used in Simulation of Romanian Friction Dampers

Authors
Mihai Negru1, *, Adriana Ionescu1
1Faculty of Mechanics, University of Craiova, Calea Bucuresti 107, Craiova, Romania
*Corresponding author. Email: mihai.negru@edu.ucv.ro
Corresponding Author
Mihai Negru
Available Online 30 May 2023.
DOI
10.2991/978-94-6463-152-4_61How to use a DOI?
Keywords
Friction Damper; Hysteresis model; Stiffness Relaxation
Abstract

This paper presents a new Stiffness Relaxation method of the classic Bouc-Wen hysteresis model, used to simulate the hysteresis loop of Romanian friction dampers SERB-C-194 in seismic analysis of buildings equipped with this type of seismic dampers. The classic model does not accurately simulate the hysteresis loop of friction dampers because it keeps constant the stiffness of the damper as its stroke increases. Friction dampers are devices that strengthen the stiffness as the damper stroke increases. The proposed new method aims to simulate a stiffer damper but which is affected by the phenomenon of Stiffness Relaxation. Such methods have been proposed by Sivaselvan and Rheinhorn [1, 2] which have introduced a Stiffness Relaxation factor Rk which only works for the situations of continuous increase of the damper stroke. Our method offers a way to solve this problem by an “envelope” of the damper displacements. In this case the hysteresis loops of the new model are in accordance with the real situation observable in the hysteresis loops obtained experimentally. The new differential hysteresis model was implemented in the HistPlot program developed by the authors and is useful in determining the parameters of the differential model for simulating experimental hysteresis loops. This improved model is further used for earthquake dynamic simulation of buildings equipped with anti-seismic dampers using the GenEcAm program developed by the authors.

Copyright
© 2023 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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Volume Title
Proceedings of the International Conference of Mechanical Engineering (ICOME-2022)
Series
Atlantis Highlights in Engineering
Publication Date
30 May 2023
ISBN
10.2991/978-94-6463-152-4_61
ISSN
2589-4943
DOI
10.2991/978-94-6463-152-4_61How to use a DOI?
Copyright
© 2023 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Cite this article

risenwbib
TY  - CONF
AU  - Mihai Negru
AU  - Adriana Ionescu
PY  - 2023
DA  - 2023/05/30
TI  - Software Application for Stiffness Relaxation New Method of Bouc-Wen Hysteresis Differential Model Used in Simulation of Romanian Friction Dampers
BT  - Proceedings of the International Conference of Mechanical Engineering (ICOME-2022)
PB  - Atlantis Press
SP  - 565
EP  - 570
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6463-152-4_61
DO  - 10.2991/978-94-6463-152-4_61
ID  - Negru2023
ER  -