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parametric optimization 2

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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 concaveThe result shows that the CSTD yields a stable hysteretic response and affords excellent energy dissipationequal-stiffness design steel tube dampers, the CSTD exhibits better energy dissipation performance, more stable hysteretic

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

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Parametric computational study on butterfly-shaped hysteretic dampers

Ali Reza FARZAMPOUR, Matthew Roy EATHERTON

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 5,   Pages 1214-1226 doi: 10.1007/s11709-019-0550-6

Abstract: A parametric computational study is conducted to investigate the shear yielding, flexural yielding, and lateral torsional buckling limit states for butterfly-shaped links. After validating the accuracy of the finite element (FE) modeling approach against previous experiments, 112 computational models with different geometrical properties were constructed and analyzed including consideration of initial imperfections. The resulting yielding moment, corresponding critical shear force, the accumulation of plastic strains through the length of links as well as the amount of energy dissipated are investigated. The results indicate that as the shape of the butterfly-shaped links become too straight or conversely too narrow in the middle, peak accumulated plastic strains increase. The significant effect of plate thickness on the buckling limit state is examined in this study. Results show that overstrength for these links (peak force divided by yield force) is between 1.2 and 4.5, with straight links producing larger overstrength. Additionally, proportioning the links to delay buckling, and designing the links to yield in the flexural mode are shown to improve energy dissipation.

Keywords： structural fuse     hysteretic damper     finite element analysis     energy dissipation     initial imperfection     butterfly-shaped    

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Numerical study of the cyclic load behavior of AISI 316L stainless steel shear links for seismic fuse device

Ruipeng LI,Yunfeng ZHANG,Le-Wei TONG

Frontiers of Structural and Civil Engineering 2014, Volume 8, Issue 4,   Pages 414-426 doi: 10.1007/s11709-014-0276-4

Abstract: This paper presents the results of nonlinear finite element analyses conducted on stainless steel shear links. Stainless steels are attractive materials for seismic fuse device especially for corrosion-aware environment such as coastal regions because they are highly corrosion resistant, have good ductility and toughness properties in combination with low maintenance requirements. This paper discusses the promising use of AISI 316L stainless steel for shear links as seismic fuse devices. Hysteresis behaviors of four stainless steel shear link specimens under reversed cyclic loading were examined to assess their ultimate strength, plastic rotation and failure modes. The nonlinear finite element analysis results show that shear links made of AISI 316L stainless steel exhibit a high level of ductility. However, it is also found that because of large over-strength ratio associated with its strain hardening process, mixed shear and flexural failure modes were observed in stainless steel shear links compared with conventional steel shear links with the same length ratio. This raises the issue that proper design requirements such as length ratio, element compactness and stiffener spacing need to be determined to ensure the full development of the overall plastic rotation of the stainless steel shear links.

Keywords： hysteretic damper     eccentrically braced frame     energy dissipation     seismic     stainless steel     shear link    

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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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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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Stress induced polarization switching and coupled hysteretic dynamics in ferroelectric materials

Linxiang WANG, Roderick MELNIK, Fuzai LV

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 3,   Pages 287-291 doi: 10.1007/s11465-011-0230-2

Abstract: In the current paper, a macroscopic differential model is constructed for the coupled hysteretic dynamics

Keywords： differential model     state space     electromechanical switching     butterfly effects     hysteresis    

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Estimation of relations among hysteretic response measures and design parameters for RC rectangular shear

A. ARAB, Ma. R. BANAN, Mo. R. BANAN, S. FARHADI

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 1,   Pages 3-15 doi: 10.1007/s11709-017-0418-6

Abstract: The OpenSEES numerical simulations modeling of plastic hinge hysteretic behavior of RC shear walls andestimation of empirical relations among wall hysteretic indices and design parameters are presented.The estimated hysteretic response measures are wall effective stiffness, yield and ultimate curvatures

Keywords： RC wall hysteretic measures     RC wall design parameters     empirical relations     numerical simulations     RC rectangular    

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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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Experimental research on the multilayer compartmental particle damper and its application methods on

Zhenyuan LUO, Weiming YAN, Weibing XU, Qinfei ZHENG, Baoshun WANG

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 4,   Pages 751-766 doi: 10.1007/s11709-018-0509-z

Abstract: damping technology to long-period structure seismic control, a novel multilayer compartmental particle damper

Keywords： energy dissipation devices     multilayer compartmental particle damper     self-anchored suspension bridges    

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Design method and verification of a hybrid prosthetic mechanism with energy-damper clutchable device

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 4,   Pages 747-764 doi: 10.1007/s11465-021-0644-4

Abstract: Inspired by motion–energy coupling relationship of the knee, a wearable energy-damper clutched device

Keywords： hybrid transfemoral prosthetic mechanism     energy recycling     wearable mechanical clutched device     mechanical adaptive stability    

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Electrorheological damper for the ultra-precision air bearing stage

ZHU Yu, JIA Songtao, CHEN Yaying, LI Guang

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 2,   Pages 158-163 doi: 10.1007/s11465-008-0031-4

Abstract: This paper illustrates how the electrorheological damper substantially improves the performance of thesolve this problem and consider the characteristics of electrorheological fluids, an electrorheological damperThe electrorheological damper’s characteristics in high electric fields are obtained based on the EyringTo enhance the performance of the electrorheological damper, which takes effect only when the stage isultra-precision air bearing stage can be effectively improved through the introduction of the electrorheological damper

Keywords： post-yield     linear-motor     advanced sliding     pre-yield     position    

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Study on damping properties of magnetorheological damper

ZHOU Yu-feng, CHEN Hua-ling

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 4,   Pages 452-455 doi: 10.1007/s11465-006-0057-4

Abstract: On the basis of analyzing the structural forms of MR dampers, an improved structure of the MR damperis introduced; the properties of the novel MR damper are then tested.model predicts the force-velocity well; the damping properties of the ameliorated structure of the MR damperhave improved; when the excitation is a trigonal signal, the MR damper reveals a thinning effect athigh velocity; and when the excitation is a sinusoidal signal, the MR damper reveals a nonlinear hysteretic

Keywords： nonlinear hysteretic     force-velocity     unsolved     excitation     magnetorheological    

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Title Author Date Type Operation

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

Journal Article

Parametric computational study on butterfly-shaped hysteretic dampers

Ali Reza FARZAMPOUR, Matthew Roy EATHERTON

Journal Article

Numerical study of the cyclic load behavior of AISI 316L stainless steel shear links for seismic fuse device

Ruipeng LI,Yunfeng ZHANG,Le-Wei TONG

Journal Article

Evaluation of a developed bypass viscous damper performance

Mahrad FAHIMINIA, Aydin SHISHEGARAN

Journal Article

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

Min-Ho CHEY, Jae-Ung KIM

Journal Article

Stress induced polarization switching and coupled hysteretic dynamics in ferroelectric materials

Linxiang WANG, Roderick MELNIK, Fuzai LV

Journal Article

Estimation of relations among hysteretic response measures and design parameters for RC rectangular shear

A. ARAB, Ma. R. BANAN, Mo. R. BANAN, S. FARHADI

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

Experimental research on the multilayer compartmental particle damper and its application methods on

Zhenyuan LUO, Weiming YAN, Weibing XU, Qinfei ZHENG, Baoshun WANG

Journal Article

Design method and verification of a hybrid prosthetic mechanism with energy-damper clutchable device

Journal Article

Electrorheological damper for the ultra-precision air bearing stage

ZHU Yu, JIA Songtao, CHEN Yaying, LI Guang

Journal Article

Study on damping properties of magnetorheological damper

ZHOU Yu-feng, CHEN Hua-ling

Journal Article