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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: Particle damping technology has attracted extensive research and engineering application interest inTo introduce particle damping technology to long-period structure seismic control, a novel multilayercompartmental particle damper (MCPD) was proposed, and a 1/20 scale test model of a typical long-periodIn addition, no particle accumulation was observed during the tests.

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

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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: With the application of the particle damping technology to cable vibration attenuation, the rootlesscable damper overcomes the limit in installation height of existing dampers.paper, 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 differentand reveal the influence of the design parameters on its performance, including the filling ratio, particle

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

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FEM-based strain analysis study for multilayer sheet forming process

Rongjing ZHANG,Lihui LANG,Rizwan ZAFAR

Frontiers of Mechanical Engineering 2015, Volume 10, Issue 4,   Pages 373-379 doi: 10.1007/s11465-015-0371-9

Abstract: the novel method, this study conducts a finite element method-based (FEM-based) strain analysis on multilayerHydroforming is used for multilayer forming.The results of this study will enhance the knowledge on the mechanics of multilayer structures formed

Keywords： finite element method (FEM)     strain analysis     multilayer sheet forming    

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Mechanical properties and microstructure of multilayer graphene oxide cement mortar

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 4,   Pages 1058-1070 doi: 10.1007/s11709-021-0747-3

Abstract: This study reports on the effects of multilayer graphene oxide (MGO) on compressive strength, flexural

Keywords： graphene oxide     cement     mortar     mechanical properties     microstructure    

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Eddy current measurement of the thickness of top Cu film of the multilayer interconnects in the integrated

Zilian QU,Yonggang MENG,Qian ZHAO

Frontiers of Mechanical Engineering 2015, Volume 10, Issue 1,   Pages 1-6 doi: 10.1007/s11465-015-0325-2

Abstract: method, named equivalent unit method (EUM), for the thickness measurement of the top copper film of multilayer

Keywords： CMP     eddy current     multilayer wafer     Cu interconnects     equivalent unit    

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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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Experimental verification of the interface wave method to detect interlaminar damage of a metal multilayer

Bing LI,Xu GENG,Tong LU,Lei QIANG,Minghang LI

Frontiers of Mechanical Engineering 2015, Volume 10, Issue 4,   Pages 380-391 doi: 10.1007/s11465-015-0365-7

Abstract: (a type of interfacial wave between two solid half-spaces) is implemented to detect the damage in a multilayerTherefore, Stoneley waves show great potential as a non-destructive inspection method of a multilayer

Keywords： crack localization     interface waves     Stoneley waves     interlaminar damage     multilayer structure    

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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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Kinetic-compartmental modelling of potassium-containing cellulose feedstock gasification

Attila Egedy, Lívia Gyurik, Tamás Varga, Jun Zou, Norbert Miskolczi, Haiping Yang

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 4,   Pages 708-717 doi: 10.1007/s11705-018-1767-y

Abstract:

Biomass is of growing interest as a secondary energy source and can be converted to fuels with higher energy density especially by pyrolysis or gasification. Understanding the mechanism and the kinetics of biomass pyrolysis (thermal decomposition) and gasification (conversion of organic material to gases) could be the key to the design of industrial devices capable of processing vast amounts of biomass feedstock. In our work real product components obtained in pyrolysis were took into consideration as well as char and oil as lumped components, and the kinetic constants for a biomass model compound (cellulose) pyrolysis and gasification were identified based on a proposed simplified reaction mechanism within a compartment model structure. A laboratory scale reactor was used for the physical experiments containing consecutive fast pyrolysis and gasification stages using alkali metal (K) containing feedstock, which has a significant effect on the cellulose pyrolysis and gasification. The detailed model was implemented in MATLAB/Simulink environment, and the unknown kinetic parameters were identified based on experimental data. The model was validated based on measurement data, and a good agreement was found. Based on the validated first principle model the optimal parameters were determined as 0.15 mL/min steam flow rate, and 4% K content.

Keywords： biomass pyrolysis     kinetic parameter identification     compartment modelling     optimisation    

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The Effect of Fire Source with Sand on the Temperature of Compartmental Fires

Song Hu,Yang Lizhong,Fan Weicheng,Weng Wenguo

Strategic Study of CAE 2002, Volume 4, Issue 5,   Pages 59-62

Abstract:

When compartment fire reaches flashover, the temperature rises rapidly, resulting in the ignition of all surfaces of the combustibles within the compartment. In this paper, the suppression method of adding sand into the fire source (gasoline) is discussed. Through assuminga transition layer below the surface of sand, the combustion process of the fire source can be simplified. It is found that the time to the peak value of the upper layer temperature, the peak value itself and the rate of extinguishment have obvious dependence on the volume ratio of sand to the fire source (gasoline) . Experimental results show that the theoretical analy is reasonable.

Keywords： fire source with sand     compartmental fire     flashover    

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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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Modeling of coal swelling induced by water vapor adsorption

Zhejun PAN

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 1,   Pages 94-103 doi: 10.1007/s11705-011-1172-2

Abstract: usually forms a single layer of adsorbed molecules, water vapor adsorption in the coal micropores forms multilayervapor adsorption-induced coal swelling, assuming that only the first layer of adsorbed molecules of the multilayer

Keywords： multilayer adsorption     vapour pressure     coal shrinkage     relative humidity     permeability    

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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

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

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

Danhui DAN, Qianqing WANG, Jiongxin GONG

Journal Article

FEM-based strain analysis study for multilayer sheet forming process

Rongjing ZHANG,Lihui LANG,Rizwan ZAFAR

Journal Article

Mechanical properties and microstructure of multilayer graphene oxide cement mortar

Journal Article

Eddy current measurement of the thickness of top Cu film of the multilayer interconnects in the integrated

Zilian QU,Yonggang MENG,Qian ZHAO

Journal Article

Evaluation of a developed bypass viscous damper performance

Mahrad FAHIMINIA, Aydin SHISHEGARAN

Journal Article

Experimental verification of the interface wave method to detect interlaminar damage of a metal multilayer

Bing LI,Xu GENG,Tong LU,Lei QIANG,Minghang LI

Journal Article

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

Min-Ho CHEY, Jae-Ung KIM

Journal Article

Kinetic-compartmental modelling of potassium-containing cellulose feedstock gasification

Attila Egedy, Lívia Gyurik, Tamás Varga, Jun Zou, Norbert Miskolczi, Haiping Yang

Journal Article

The Effect of Fire Source with Sand on the Temperature of Compartmental Fires

Song Hu,Yang Lizhong,Fan Weicheng,Weng Wenguo

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

Modeling of coal swelling induced by water vapor adsorption

Zhejun PAN

Journal Article

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

Tomoki SAKURAI, Shin MORISHITA

Journal Article