Response reduction map for two-degree-of-freedom system with friction

This paper deals with the response reduction effect by friction under 2-dof system. The friction behaviour is effective for dissipating seismic energy. Therefore, in recent years, the installation of an isolator and a damper with frictional element in industrial facilities has been investigated. In...

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Main Authors: Akinori TOMODA, Ryosuke FUKADA, Tetsuya WATANABE
Format: Article
Language:Japanese
Published: The Japan Society of Mechanical Engineers 2014-07-01
Series:Nihon Kikai Gakkai ronbunshu
Subjects:
Online Access:https://www.jstage.jst.go.jp/article/transjsme/80/815/80_2014dr0205/_pdf/-char/en
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author Akinori TOMODA
Ryosuke FUKADA
Tetsuya WATANABE
author_facet Akinori TOMODA
Ryosuke FUKADA
Tetsuya WATANABE
author_sort Akinori TOMODA
collection DOAJ
description This paper deals with the response reduction effect by friction under 2-dof system. The friction behaviour is effective for dissipating seismic energy. Therefore, in recent years, the installation of an isolator and a damper with frictional element in industrial facilities has been investigated. In addition, the seismic response is reduced by the frictional vibration occurring between piping and support system. However, the seismic response of a 2-dof friction system depends on system parameters such as natural frequencies and the mass ratio of the structure by support. A great deal of time is required for non-linear analysis to obtain optimum system parameters. The present study deals with the “Response Reduction Map” for a 2-dof friction system. This map shows the area that the response magnification is less than 1 and less than the response of a linear system. Firstly, the response reduction map by actual seismic wave is shown. Secondly, the response reduction map by the artificial seismic wave calculated from the design spectrum is shown. Optimum friction forces for reducing the seismic response of 2-dof friction system can be easily obtained by this map without non-linear time history analysis.
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spelling doaj.art-d573d5a30c4f4cab8b9c8c8b2902c5fa2022-12-22T04:13:52ZjpnThe Japan Society of Mechanical EngineersNihon Kikai Gakkai ronbunshu2187-97612014-07-0180815DR0205DR020510.1299/transjsme.2014dr0205transjsmeResponse reduction map for two-degree-of-freedom system with frictionAkinori TOMODA0Ryosuke FUKADA1Tetsuya WATANABE2Division of Mechanical Engineering and Science, Saitama UniversitySuzuki Motor CorporationDivision of Mechanical Engineering and Science, Saitama UniversityThis paper deals with the response reduction effect by friction under 2-dof system. The friction behaviour is effective for dissipating seismic energy. Therefore, in recent years, the installation of an isolator and a damper with frictional element in industrial facilities has been investigated. In addition, the seismic response is reduced by the frictional vibration occurring between piping and support system. However, the seismic response of a 2-dof friction system depends on system parameters such as natural frequencies and the mass ratio of the structure by support. A great deal of time is required for non-linear analysis to obtain optimum system parameters. The present study deals with the “Response Reduction Map” for a 2-dof friction system. This map shows the area that the response magnification is less than 1 and less than the response of a linear system. Firstly, the response reduction map by actual seismic wave is shown. Secondly, the response reduction map by the artificial seismic wave calculated from the design spectrum is shown. Optimum friction forces for reducing the seismic response of 2-dof friction system can be easily obtained by this map without non-linear time history analysis.https://www.jstage.jst.go.jp/article/transjsme/80/815/80_2014dr0205/_pdf/-char/enseismic designfriction systemresponse reduction mapartificial seismic wavestructuresupport
spellingShingle Akinori TOMODA
Ryosuke FUKADA
Tetsuya WATANABE
Response reduction map for two-degree-of-freedom system with friction
Nihon Kikai Gakkai ronbunshu
seismic design
friction system
response reduction map
artificial seismic wave
structure
support
title Response reduction map for two-degree-of-freedom system with friction
title_full Response reduction map for two-degree-of-freedom system with friction
title_fullStr Response reduction map for two-degree-of-freedom system with friction
title_full_unstemmed Response reduction map for two-degree-of-freedom system with friction
title_short Response reduction map for two-degree-of-freedom system with friction
title_sort response reduction map for two degree of freedom system with friction
topic seismic design
friction system
response reduction map
artificial seismic wave
structure
support
url https://www.jstage.jst.go.jp/article/transjsme/80/815/80_2014dr0205/_pdf/-char/en
work_keys_str_mv AT akinoritomoda responsereductionmapfortwodegreeoffreedomsystemwithfriction
AT ryosukefukada responsereductionmapfortwodegreeoffreedomsystemwithfriction
AT tetsuyawatanabe responsereductionmapfortwodegreeoffreedomsystemwithfriction