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Development of a seismic design method based on response spectra for building structures

ZHOU Xiyuan, YU Ruifang

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 2,   Pages 129-141 doi: 10.1007/s11709-007-0014-2

Abstract: The scope of application for the classical damping theory is analyzed and the necessity of the researchon mode-superposition method for non-classical damping is presented.approach for calculation of seismic response of the non-classically damped system with overcritical damping

Keywords： generalization     classical damping     mode-superposition response     calculation formula     damping theory    

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A method of analysis for modal aero-damping of vibrating blade in incompressible flow

Jun XING, Lin LI,

Frontiers in Energy 2009, Volume 3, Issue 4,   Pages 465-471 doi: 10.1007/s11708-009-0037-6

Abstract: By establishing a research model for aero-damping in a uniform incoming flow, the three-dimension analyticalalgorithm of the modal aero-damping based on the equivalent viscous damping principle was establishedThe algorithm, which is suited for low-speed flow, to compute aero-damping is based on classical liftAccording to the analytical equations, the modal aero-damping ratio for different nature frequenciesThe results show that the aero-damping cannot be neglected comparing with the structure damping.

Keywords： compressor     different     three-dimension analytical     classical     low-speed    

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Soundscape of classical Chinese garden

YUAN Xiaomei, WU Shuoxian

Frontiers of Structural and Civil Engineering 2008, Volume 2, Issue 2,   Pages 172-178 doi: 10.1007/s11709-008-0026-6

Abstract: With deep humanized connotation, the classical Chinese garden uses human intuitive sensation and personal

Keywords： observation     classical     phenomena     intuitive     soundscape    

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Yue’s solution of classical elasticity in

Zhong-qi Quentin YUE

Frontiers of Structural and Civil Engineering 2015, Volume 9, Issue 3,   Pages 215-249 doi: 10.1007/s11709-015-0298-6

Abstract: The mathematical theory of linear elasticity is one of the most classical field theories in mechanicsFor more than 150 years from 1838 to present, one of the remaining key tasks in classical elasticityThe boundary-value problems of classical elasticity in -layered and graded solids are also one of theclassical problems challenging many researchers.using the classical mathematical tools such as Fourier integral transforms.

Keywords： elasticity     solution     layered solid     graded material    

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Development of rocking constraint device with vertical damping capacity for three-dimensional base-isolated

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 3,   Pages 350-367 doi: 10.1007/s11709-022-0923-0

Abstract: 3D) base-isolated frame structures by connecting a custom-designed cylinder pair to provide vertical dampingwith replaceable damping components installed outside the cylinders when the superstructure undergoesTheoretical formulas for calculating the damping and rocking constraint stiffness of the RCD are proposedThe test results show that the cylinder without orifices on its piston can provide the desired dampingwith a replaceable damping component, and that the RCD can effectively suppress rocking.

Keywords： three-dimensional isolation     rocking behavior     rocking constraint device     replaceable damping component    

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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: The more sensitive parameter to the damage is the damping behavior of the structure.The complexity of structural damping mechanisms has made this parameter to be one of the ongoing researchDespite all the difficulties in the modeling of damping, there are some approaches like as linear andIn the presence of a mathematical model of the damping mechanisms, it is possible to estimate the dampingIn this paper model-based damping approximation method and a model-less structural input estimation are

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

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Variable stiffness and damping magnetorheological isolator

Yang ZHOU, Xingyu WANG, Xianzhou ZHANG, Weihua LI

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 3,   Pages 310-315 doi: 10.1007/s11465-009-0039-4

Abstract: the development and characterization of a magnetorheological (MR) fluid-based variable stiffness and dampingExperimental results indicate that both the stiffness and damping capability of the developed MR isolator

Keywords： magnetorheological (MR) fluid     stiffness     damping     mathematical model     dynamic performance     parameter identification    

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Study of an artificial boundary condition based on the damping-solvent extraction method

Qiang XU, Jianyun CHEN, Jing LI, Mingming WANG

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 3,   Pages 281-287 doi: 10.1007/s11709-012-0167-5

Abstract: The boundary condition was based on the damping-solvent extraction method.The principle of the damping-solvent extraction method was described.artificial boundary condition was then established by setting two spring-damper systems and one artificial dampingCompared with the damping-solvent extraction method, this boundary condition is easier to be applied

Keywords： damping-solvent extraction method     structure-unlimited-foundation system     spring-damper system     artificialdamping limited region     finite element method    

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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: To expand their usage, their inherent damping and layout sensitivity to seismic performance are investigatedResults of preliminary analysis show that a green roof soil can increase localized damping by 2.5% underThe increased damping in the green roof soil is beneficial to the structural performance, i.e., it reduces

Keywords： green infrastructure     green roof     structural resilience     seismic design    

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Fluid damping clearance in a control valve of injector

ZHANG Jianming, ZHANG Weigang, YANG Bing, WANG Yawei

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 4,   Pages 439-441 doi: 10.1007/s11465-007-0075-x

Abstract: A force model of a control valve of injector is set up, and the changes of the fluid damping clearanceResults indicate that a damping clearance of 0.02–0.03 mm between the poppet and the valve guide is the

Keywords： control     computational     bouncing     CFD     excessive control    

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Dynamics of structural systems with various frequency-dependent damping models

Li LI,Yujin HU,Weiming DENG,Lei LÜ,Zhe DING

Frontiers of Mechanical Engineering 2015, Volume 10, Issue 1,   Pages 48-63 doi: 10.1007/s11465-015-0330-5

Abstract:

The aim of this paper is to present the dynamic analyses of the system involving various damping modelsover some damping kernel functions.By choosing suitable damping kernel functions of frequency-dependent damping model, it may be derivedA brief review of literature on the choice of available damping models is presented.It is shown that in the case of non-deficient systems with various damping models, the modal analysis

Keywords： damping     viscoelasticity     dynamic analysis     mode superposition method     Fourier transform method    

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Dynamic characteristics analysis of active constrained layer damping plate with various boundary conditions

Jing LU, Yu XIANG, Qiao NI

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 4,   Pages 449-455 doi: 10.1007/s11465-011-0240-0

Abstract: layer wised principle, the integrated first order differential equation of an active constrained layer damping

Keywords： active constrained layer damping (ACLD) plate     dynamic characteristics     semi-analytical method     extended    

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Efficient purification of cell culture-derived classical swine fever virus by ultrafiltration and size-exclusion

Ruining WANG,Yubao ZHI,Junqing GUO,Qingmei LI,Li WANG,Jifei YANG,Qianyue JIN,Yinbiao WANG,Yanyan YANG,Guangxu XING,Songlin QIAO,Mengmeng ZHAO,Ruiguang DENG,Gaiping ZHANG

Frontiers of Agricultural Science and Engineering 2015, Volume 2, Issue 3,   Pages 230-236 doi: 10.15302/J-FASE-2015071

Abstract: Large-scale production of cell culture-based classical swine fever virus (CSFV) vaccine is hampered by

Keywords： classical swine fever virus     virus purification     tangential-flow filtration     size-exclusion chromatography    

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Design of damping valve for vehicle hydro pneumatic suspension

DONG Mingming, HUANG Hua, GU Lian

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 1,   Pages 97-100 doi: 10.1007/s11465-008-0014-5

Abstract: According to the design features of a hydro pneumatic spring, the necessity of a separate damping valveBased on a 1/4 vehicle linear suspension model, the optimum damping coefficient is worked out and theparameters of the damping valve are determined with the equivalent linearization method.A practical structure of the damping valve is proposed having a small size, high flowrate when the valveBased on bench tests, the damping valve has been found to properly work and be suitable.

Keywords： ability     pneumatic     necessity     flowrate     equivalent linearization    

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Unit commitment using dynamic programming–an exhaustive working of both classical and stochastic approach

Balasubramaniyan SARAVANAN, Surbhi SIKRI, K. S. SWARUP, D. P. KOTHARI

Frontiers in Energy 2013, Volume 7, Issue 3,   Pages 333-341 doi: 10.1007/s11708-013-0259-5

Abstract: In the present electricity market, where renewable energy power plants have been included in the power systems, there is a lot of unpredictability in the demand and generation. There are many conventional and evolutionary programming techniques used for solving the unit commitment (UC) problem. Dynamic programming (DP) is a conventional algorithm used to solve the deterministic problem. In this paper DP is used to solve the stochastic model of UC problem. The stochastic modeling for load and generation side has been formulated using an approximate state decision approach. The programs were developed in a MATLAB environment and were extensively tested for a four-unit eight-hour system. The results obtained from these techniques were validated with the available literature and outcome was good. The commitment is in such a way that the total cost is minimal. The novelty of this paper lies in the fact that DP is used for solving the stochastic UC problem.

Keywords： unit commitment (UC)     deterministic     stochastic     dynamic programming (DP)     optimization     state diagram    

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Title Author Date Type Operation

Development of a seismic design method based on response spectra for building structures

ZHOU Xiyuan, YU Ruifang

Journal Article

A method of analysis for modal aero-damping of vibrating blade in incompressible flow

Jun XING, Lin LI,

Journal Article

Soundscape of classical Chinese garden

YUAN Xiaomei, WU Shuoxian

Journal Article

Yue’s solution of classical elasticity in

Zhong-qi Quentin YUE

Journal Article

Development of rocking constraint device with vertical damping capacity for three-dimensional base-isolated

Journal Article

Approximation of structural damping and input excitation force

Mohammad SALAVATI

Journal Article

Variable stiffness and damping magnetorheological isolator

Yang ZHOU, Xingyu WANG, Xianzhou ZHANG, Weihua LI

Journal Article

Study of an artificial boundary condition based on the damping-solvent extraction method

Qiang XU, Jianyun CHEN, Jing LI, Mingming WANG

Journal Article

Effects of green roof damping and configuration on structural seismic response

Journal Article

Fluid damping clearance in a control valve of injector

ZHANG Jianming, ZHANG Weigang, YANG Bing, WANG Yawei

Journal Article

Dynamics of structural systems with various frequency-dependent damping models

Li LI,Yujin HU,Weiming DENG,Lei LÜ,Zhe DING

Journal Article

Dynamic characteristics analysis of active constrained layer damping plate with various boundary conditions

Jing LU, Yu XIANG, Qiao NI

Journal Article

Efficient purification of cell culture-derived classical swine fever virus by ultrafiltration and size-exclusion

Ruining WANG,Yubao ZHI,Junqing GUO,Qingmei LI,Li WANG,Jifei YANG,Qianyue JIN,Yinbiao WANG,Yanyan YANG,Guangxu XING,Songlin QIAO,Mengmeng ZHAO,Ruiguang DENG,Gaiping ZHANG

Journal Article

Design of damping valve for vehicle hydro pneumatic suspension

DONG Mingming, HUANG Hua, GU Lian

Journal Article

Unit commitment using dynamic programming–an exhaustive working of both classical and stochastic approach

Balasubramaniyan SARAVANAN, Surbhi SIKRI, K. S. SWARUP, D. P. KOTHARI

Journal Article