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Seismic performance of steel MRF building with nonlinear viscous dampers

Baiping DONG,James M. RICLES,Richard SAUSE

Frontiers of Structural and Civil Engineering 2016, Volume 10, Issue 3,   Pages 254-271 doi: 10.1007/s11709-016-0348-8

Abstract: structure consisting of a moment resisting frame (MRF) with reduced beam sections (RBS), and a frame with nonlinearviscous dampers and associated bracing (called the DBF).The DBF with nonlinear viscous dampers was designed to control the lateral drift demands.

Keywords： seismic response     steel MRF     nonlinear viscous damper     design basis earthquake     real-time hybrid simulation    

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Evaluation of a developed bypass viscous damper performance

Mahrad FAHIMINIA, Aydin SHISHEGARAN

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 3,   Pages 773-791 doi: 10.1007/s11709-020-0627-2

Abstract: In this study, the dynamic behavior of a developed bypass viscous damper is evaluated.Bypass viscous damper has a flexible hose as an external orifice through which the inside fluid transferAccordingly, the viscosity coefficient of the damper can be adjusted using geometrical dimensions ofMoreover, the external orifice acts as a thermal compensator and alleviates viscous heating of the damperNonlinear time history analyses revealed that the hospital with viscous damper experiences less structural

Keywords： developed viscous damper     external orifice     energy dissipation     seismic behavior     CFD model of viscous damper    

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Wind-induced vibration control of Hefei TV tower with fluid viscous damper

Zhiqiang ZHANG , Aiqun LI , Jianping HE , Jianlei WANG ,

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 3,   Pages 249-254 doi: 10.1007/s11709-009-0038-x

Abstract: The Hefei TV tower is taken as an analytical case to examine the control method with a fluid viscousdamper under wind load fluctuation.Finally, a dynamic model is proposed to study the wind-induced vibration control analysis using viscouswind-induced responses and the wind vibration input energy of the tower are decreased greatly by using a fluid viscousdamper, and the peak acceleration responses of the upper turret is reduced by 43.4%.

Keywords： high-rise structure     wind-induced response     fluid viscous damper     vibration control    

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A fast and accurate dynamic relaxation scheme

Mohammad REZAIEE-PAJAND, Mohammad MOHAMMADI-KHATAMI

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 1,   Pages 176-189 doi: 10.1007/s11709-018-0486-2

Abstract: Dynamic relaxation method (DRM) is one of the suitable numerical procedures for nonlinear structuralBased on this formulation, a new time step is found for the viscous dynamic relaxation.After combining this novel relationship with the other DRM factors, various geometrical nonlinear structures

Keywords： viscous dynamic relaxation     time step     displacement error     geometric nonlinear analysis    

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Combined static mixers for high viscous fluids mixing

Zhenhao XI, Weizhen SUN, Ling ZHAO, Zhaoyan LIU

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 1,   Pages 93-96 doi: 10.1007/s11705-009-0112-x

Abstract: A new static mixer Cross-over-Disc has been invented to strip off the boundary layer and to make strong radial mixing. The pressure drop of Cross-over-Disc is 12—26 times as large as that of empty pipe with equivalent diameter and length. The mixing performance of Cross-over-Disc with 14 elements has been investigated in the viscosity range of 190—250 Pa?s by decoloration method, and the gray analysis of images shows that mixing inhomogeneity is about 7.5% and 9.4% for the mixing ratio of 5∶1 and 10∶1, respectively. Furthermore, mixing inhomogeneity for a combination of static mixing elements (four from Cross-over-Disc and three pairs from Sulzer-type) can be decreased to 2.1%—3.1% within a reasonable range of pressure drop.

Keywords： static mixer     Cross-over-Disc     pressure drop     mixing performance     high viscous fluid    

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Nonlinear restoring force identification based on measured time series

Xu Bin,He Jia

Strategic Study of CAE 2011, Volume 13, Issue 9,   Pages 76-82

Abstract:

In this study, a general nonlinear restoring force (NRF) identificationleast-squares technique is employed to identify the parameters of an equivalent linear system of the nonlinearare validated with a 4-story frame structure equipped with smart devices of magneto-rheological (MR) damperto simulate nonlinear performance.Results show that the proposed data-based approaches are capable of identifying the nonlinear restoring

Keywords： nonlinear restoring force identification     MR damper     least-squares techniques     equivalent linear system    

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Stability of an annular viscous liquid jet in compressible gases with different properties inside and

Chunji YAN, Maozhao XIE,

Frontiers in Energy 2010, Volume 4, Issue 2,   Pages 198-204 doi: 10.1007/s11708-009-0054-5

Abstract: A spatial linear instability analysis is conducted on an annular viscous liquid jet injected into compressible

Keywords： liquid jet     dominant wave number     compressibility     instability    

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building isolation systems under multi-level earthquake excitations: Part I, conceptual design and nonlinear

Min-Ho CHEY,J. Geoffrey CHASE,John B. MANDER,Athol J. CARR

Frontiers of Structural and Civil Engineering 2015, Volume 9, Issue 3,   Pages 286-296 doi: 10.1007/s11709-015-0307-9

Abstract: As a novel structural control strategy, tuned mass damper (TMD) inspired passive and semi-active smartpoint, between the separated upper and lower stories entails the insertion of rubber bearings and (i) viscousPassive viscous damper or semi-active resettable devices are parametrically evaluated through the optimalBased on nonlinear structural models, including P-delta effects and modified Takeda hysteresis, the inelastic

Keywords： tuned mass damper     smart building isolation     resettable device     non-linear     statistical assessment    

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Parametric control of structural responses using an optimal passive tuned mass damper under stationary

Min-Ho CHEY, Jae-Ung KIM

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 3,   Pages 267-280 doi: 10.1007/s11709-012-0170-x

Abstract: In this study, the structural control strategy utilizing a passive tuned mass damper (TMD) system as

Keywords： tuned mass damper     parametric optimization     passive control     white noise     earthquake excitation    

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Study of steam injection technology for low permeablehigh viscous light oil reservoir

Wang Lizhi,Wang Yunlong

Strategic Study of CAE 2012, Volume 14, Issue 4,   Pages 88-94

Abstract: approaches to reduce viscosity of crude oil reservoirs, increase permeability and improve flow rate of high viscousindicated suitable reservoir geological conditions for steam-flooding extraction of low permeable high viscous

Keywords： low permeability     high viscous light oil     steam-flooding extraction    

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Hysteretic behavior of cambered surface steel tube damper: Theoretical and experimental research

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 4,   Pages 606-624 doi: 10.1007/s11709-023-0925-6

Abstract: A novel cambered surface steel tube damper (CSTD) with a cambered surface steel tube and two concave

Keywords： cambered surface steel tube damper     energy dissipation capacity     finite element model     hysteretic performance    

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Effect of magneto rheological damper on tool vibration during hard turning

P. Sam PAUL, A. S. VARADARAJAN

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 4,   Pages 410-416 doi: 10.1007/s11465-012-0341-4

Abstract: The present investigation aims at developing a magneto rheological (MR) fluid damper for suppressingIt was observed that the use of MR fluid damper reduces tool vibration and improves the cutting performance

Keywords： tool vibration     magneto rheological damper     hard turning     surface finish     tool wear    

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Analytical study on damping performances of magnetorheological grease damper based on disk squeeze mode

Danxia ZHAO, Changrong LIAO, Qiong LIU, Jing LUO

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 3,   Pages 312-317 doi: 10.1007/s11465-011-0235-x

Abstract:

In this paper, a small displacement-type magnetorheological grease (MRG) damper based on disk squeezeTo verify rationality of analytical method, the MRG damper is designed and fabricated according to thethat the proposed analytical method is feasible and provides the reference value for designing MRG damper

Keywords： magnetorheological grease (MRG)     damper     squeeze model    

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Application of coupled multi-body dynamics–discrete element method for optimization of particle damper

Danhui DAN, Qianqing WANG, Jiongxin GONG

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 1,   Pages 244-252 doi: 10.1007/s11709-021-0696-x

Abstract: the application of the particle damping technology to cable vibration attenuation, the rootless cable damperpaper, a coupled multi-body dynamics–discrete element method is proposed to simulate the damping of the damper–cableThe simulation results demonstrate the damping efficiency of rootless particle damper under different

Keywords： granular material     vibration control     discrete element method     particle damper     cable vibration    

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Seismic response reduction of a three-story building by an MR grease damper

Tomoki SAKURAI, Shin MORISHITA

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 2,   Pages 224-233 doi: 10.1007/s11465-017-0413-6

Abstract: MR grease was introduced into a cylindrical damper, and the seismic performance of the damper was subsequentlyThe analysis results of the MR grease damper were compared with those of other seismic dampers.We confirmed that the MR grease damper is an effective seismic damper.

Keywords： MR grease damper     seismic damper     vibration control     structural response     FEM analysis    

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Title Author Date Type Operation

Seismic performance of steel MRF building with nonlinear viscous dampers

Baiping DONG,James M. RICLES,Richard SAUSE

Journal Article

Evaluation of a developed bypass viscous damper performance

Mahrad FAHIMINIA, Aydin SHISHEGARAN

Journal Article

Wind-induced vibration control of Hefei TV tower with fluid viscous damper

Zhiqiang ZHANG , Aiqun LI , Jianping HE , Jianlei WANG ,

Journal Article

A fast and accurate dynamic relaxation scheme

Mohammad REZAIEE-PAJAND, Mohammad MOHAMMADI-KHATAMI

Journal Article

Combined static mixers for high viscous fluids mixing

Zhenhao XI, Weizhen SUN, Ling ZHAO, Zhaoyan LIU

Journal Article

Nonlinear restoring force identification based on measured time series

Xu Bin,He Jia

Journal Article

Stability of an annular viscous liquid jet in compressible gases with different properties inside and

Chunji YAN, Maozhao XIE,

Journal Article

building isolation systems under multi-level earthquake excitations: Part I, conceptual design and nonlinear

Min-Ho CHEY,J. Geoffrey CHASE,John B. MANDER,Athol J. CARR

Journal Article

Parametric control of structural responses using an optimal passive tuned mass damper under stationary

Min-Ho CHEY, Jae-Ung KIM

Journal Article

Study of steam injection technology for low permeablehigh viscous light oil reservoir

Wang Lizhi,Wang Yunlong

Journal Article

Hysteretic behavior of cambered surface steel tube damper: Theoretical and experimental research

Journal Article

Effect of magneto rheological damper on tool vibration during hard turning

P. Sam PAUL, A. S. VARADARAJAN

Journal Article

Analytical study on damping performances of magnetorheological grease damper based on disk squeeze mode

Danxia ZHAO, Changrong LIAO, Qiong LIU, Jing LUO

Journal Article

Application of coupled multi-body dynamics–discrete element method for optimization of particle damper

Danhui DAN, Qianqing WANG, Jiongxin GONG

Journal Article

Seismic response reduction of a three-story building by an MR grease damper

Tomoki SAKURAI, Shin MORISHITA

Journal Article