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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 transferAlso, a simplified procedure is proposed to design structures with bypass viscous dampers.The design procedure is applied to design an 8-story hospital structure with bypass viscous dampers,Nonlinear 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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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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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: consisting of a moment resisting frame (MRF) with reduced beam sections (RBS), and a frame with nonlinear viscousThe 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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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 viscousFinally, 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 viscous

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

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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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Structural synthesis of ancient Chinese foot-operated silk-reeling mechanism

Kuohung HSIAO, Yuhsun CHEN, Hongsen YAN,

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 3,   Pages 279-288 doi: 10.1007/s11465-010-0101-2

Abstract: This work synthesizes the structures of the foot-operated silk-reeling mechanism, which was vaguely depictedBased on the analysis of the mechanism, the structural characteristics and design constraints of themechanism with indeterminate links and joints are concluded.generalization and specialization subject to the concluded design constraints, all feasible structures of the mechanism

Keywords： silk-reeling mechanism     structure of mechanism     reconstruction design     history of machinery    

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Corrosion mechanisms of candidate structural materials for supercritical water-cooled reactor

Lefu ZHANG, Fawen ZHU, Rui TANG

Frontiers in Energy 2009, Volume 3, Issue 2,   Pages 233-240 doi: 10.1007/s11708-009-0024-y

Abstract: heat-resistant steels, and oxide dispersion strengthened steel are presently considered to be the candidate structuralcandidate alloys still remain to be a major problem in the selection of nuclear fuel cladding and other structuralSurvey of literature and experimental results reveal that the general corrosion mechanism of those candidatematerials exhibits quite complicated mechanism in high-temperature and high-pressure supercritical waterThis paper focuses on the mechanism of corrosion oxide film breakdown for SCWR candidate materials.

Keywords： supercritical water-cooled reactor     general corrosion     oxide film     corrosion mechanism    

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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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Experimental study of the restoring force mechanism in the self-centering beam (SCB)

Abhilasha MAURYA,Matthew R. EATHERTON

Frontiers of Structural and Civil Engineering 2016, Volume 10, Issue 3,   Pages 272-282 doi: 10.1007/s11709-016-0346-x

Abstract: The self-centering beam (SCB) is a shop-fabricated, self-contained structural component that when implementedThe behavior of the restoring force mechanism is described.

Keywords： self-centering seismic system     seismic design     hysteretic behavior     restoring force     resilient structural    

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Dynamic mechanism for the decline of China’s energy intensity during the 11th FYP (Five-Year Plan)

Minghui LI

Frontiers in Energy 2011, Volume 5, Issue 3,   Pages 237-249 doi: 10.1007/s11708-010-0130-x

Abstract: This paper describes some new properties of the mechanism for the decrease in China’s energy intensityFirst, compared with the period of the 10th FYP, technical, structural, and residential energy-savingsSecondly, unlike the dynamic mechanism before 2000, technical energy savings have been the main driverNext, although structural energy savings are not the main factor, they are still a key factor for the

Keywords： energy intensity     structural energy savings     technical energy savings    

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Analytical algorithms of compressive bending capacity of bolted circumferential joint in metro shield tunnels

Frontiers of Structural and Civil Engineering   Pages 901-914 doi: 10.1007/s11709-023-0915-8

Abstract: This study focuses on the mechanical characteristics and mechanism of a bolted circumferential joint

Keywords： shield tunnel     segment joint     joint structural model     failure mechanism    

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ENTREPRENEURIAL OPPORTUNITY, VALUE EVOLUTION, AND ORGANIZATIONAL INTEGRATION OF PROFESSIONAL FARMER ENTREPRENEURSHIP: A MULTI-CASE COMPARISON IN CHINA

Frontiers of Agricultural Science and Engineering 2023, Volume 10, Issue 1,   Pages 135-148 doi: 10.15302/J-FASE-2022464

Abstract: The success of this project is due to its capacity to successfully fill the structural hole in the market

Keywords： Benefit-linked mechanism     featured agriculture     organizational integration     professional farmers     ruralcooperative     structural hole theory    

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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.

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

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Approximation of structural damping and input excitation force

Mohammad SALAVATI

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 2,   Pages 244-254 doi: 10.1007/s11709-016-0371-9

Abstract: Structural dynamic characteristics are the most significant parameters that play a decisive role in structuralThe complexity of structural damping mechanisms has made this parameter to be one of the ongoing researchapproaches like as linear and nonlinear models which are described as the energy dissipation throughout viscous, material or structural hysteretic and frictional damping mechanisms.responses plays an important role in structural identification process.

Keywords： structural modal parameters     damping identification method     input excitation force identification     Inverse    

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Effects of green roof damping and configuration on structural seismic response

Frontiers of Structural and Civil Engineering   Pages 1133-1144 doi: 10.1007/s11709-023-0959-9

Abstract: Hence, their structural resilience or ability to recover from natural events must be considered comprehensively, nonlinear time-history analyses are conducted on a three-story building in SAP2000 to monitor the structuralThe increased damping in the green roof soil is beneficial to the structural performance, i.e., it reducesAdditionally, certain configurations are more effective and beneficial to the structural response thanBased on the findings of this study, new methods of modeling and considering green roofs in structural

Keywords： green infrastructure     green roof     structural resilience     seismic design    

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Title Author Date Type Operation

Evaluation of a developed bypass viscous damper performance

Mahrad FAHIMINIA, Aydin SHISHEGARAN

Journal Article

Combined static mixers for high viscous fluids mixing

Zhenhao XI, Weizhen SUN, Ling ZHAO, Zhaoyan LIU

Journal Article

Seismic performance of steel MRF building with nonlinear viscous dampers

Baiping DONG,James M. RICLES,Richard SAUSE

Journal Article

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

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

Journal Article

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

Chunji YAN, Maozhao XIE,

Journal Article

Structural synthesis of ancient Chinese foot-operated silk-reeling mechanism

Kuohung HSIAO, Yuhsun CHEN, Hongsen YAN,

Journal Article

Corrosion mechanisms of candidate structural materials for supercritical water-cooled reactor

Lefu ZHANG, Fawen ZHU, Rui TANG

Journal Article

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

Wang Lizhi,Wang Yunlong

Journal Article

Experimental study of the restoring force mechanism in the self-centering beam (SCB)

Abhilasha MAURYA,Matthew R. EATHERTON

Journal Article

Dynamic mechanism for the decline of China’s energy intensity during the 11th FYP (Five-Year Plan)

Minghui LI

Journal Article

Analytical algorithms of compressive bending capacity of bolted circumferential joint in metro shield tunnels

Journal Article

ENTREPRENEURIAL OPPORTUNITY, VALUE EVOLUTION, AND ORGANIZATIONAL INTEGRATION OF PROFESSIONAL FARMER ENTREPRENEURSHIP: A MULTI-CASE COMPARISON IN CHINA

Journal Article

A fast and accurate dynamic relaxation scheme

Mohammad REZAIEE-PAJAND, Mohammad MOHAMMADI-KHATAMI

Journal Article

Approximation of structural damping and input excitation force

Mohammad SALAVATI

Journal Article

Effects of green roof damping and configuration on structural seismic response

Journal Article