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Application of an efficient stochastic calculation method on the seismic analysis of an isolated structure

Wei GUO, Zhiwu YU

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 4,   Pages 379-384 doi: 10.1007/s11709-012-0180-8

Abstract: However, traditional seismic calculation theory and methods are derived based on the assumption thatBased on this drawback, a new, more efficient stochastic calculation method, an improvement on the pseudo-excitationmethod, is introduced.This method is then applied to the seismic analysis of an isolated structure.Moreover, the calculation process of the seismic response of an isolated structure is convergent.

Keywords： isolated structure     stochastic response     non-proportional damping     efficient     accurate     pseudo-excitation method    

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Explicit finite element method for calculation and analysis to the elasto-plastic dynamic response of

LI Liang, DU Xiuli, LI Liyun, ZHAO Chenggang

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 4,   Pages 436-442 doi: 10.1007/s11709-007-0059-2

Abstract: At last, the time discretization of this formula is carried out with the integral method which consistsof central difference method and Newmark constant average acceleration method to get the explicit timeOn the basis of the integral formula mentioned above, the time-domain explicit finite element methodis developed for calculation and analysis of the elasto-plastic dynamic response of fluid-saturated porousIn this method, the decoupling technique is adopted and it does not need to solve simultaneous linear

Keywords： discretization     computational     calculation     integral     requirement    

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Unified calculation method and its application in determining the uniaxial mechanical properties of concrete

Faxing DING, Xiaoyong YING, Linchao ZHOU, Zhiwu YU

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 3,   Pages 381-393 doi: 10.1007/s11709-011-0118-6

Abstract: This paper presents a unified calculation method and its application in determining the uniaxial mechanicalhigh-strength and super high-strength concrete in China and performing a regression analysis, unified calculation

Keywords： concrete     mechanical properties     stress-strain relationship     uniaxial stress     application    

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Calculation method of load distribution on pipe threaded connections under tension load

Shoujun CHEN, Lianxin GAO, Qi AN

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 2,   Pages 241-248 doi: 10.1007/s11465-011-0219-x

Abstract:

This paper presents a new calculation method that can calculate the load distribution on pipe threadedOn the basis of elastic mechanics, the new method was developed by analyzing each thread tooth, and aCompared with the traditional method proposed by the previous references, the new deformation and covariantBy applying the new method on the sample of P-110S pipe threaded connection, the obtained results show

Keywords： load distribution     calculation method     pipe threaded connections     tension load    

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Calculation method on shape finding of self-anchored suspension bridge with spatial cables

Yan HAN, Zhengqing CHEN, Shidong LUO, Shankui YANG

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 2,   Pages 165-172 doi: 10.1007/s11709-009-0021-6

Abstract: Based on the spatial model, a reliable and accurate calculation method on the shape finding of self-anchoredOn the principle that the shape of the main cables between hangers is catenary, the iteration methodBy using a numerical method combining with the finite element method, one self-anchored suspension bridgeThe results show that the shape-finding calculation method is effective and reliable.

Keywords： bridge engineering     self-anchored suspension bridges     special cables     shape-finding     calculation method    

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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 assumption and problem of the mode-superposition response spectrum method in seismic design codelinear system and the general calculation formula for the application of code; 2) the complex completeexcitations and deducing corresponding method; 4) the approach for calculation of seismic response ofthe non-classically damped system with overcritical damping and the calculation method of seismic response; 7) bringing forward the concept of partial quadratic combination in order to reduce the calculation

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

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Study on Externality and Its Calculation Method of Existing Commercial Residential Buildings Energy Saving

Zhao Yan,Liu Xiaojun

Strategic Study of CAE 2014, Volume 16, Issue 10,   Pages 100-105

Abstract: To build the externality calculation method in order to provide the necessary basis for the internalizationTo describe the causes and manifestations of energy-saving externality by economic theory and method.To propose the calculation method on the basis of identifying the externality donors and acceptors.To demonstrate the applicability of the calculation method externality through case analysis.internalize the externality of energy-saving retrofit by building a unified external energy saving calculation

Keywords： existing commercial residential buildings     energy saving retrofit     externality     calculation    

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Calculation method of radial stress and deformation on conic threaded connections with interference fit

Shoujun CHEN, Qiang LI, Qi AN,

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 3,   Pages 302-307 doi: 10.1007/s11465-010-0018-9

Abstract: This paper presents a calculation method for radial stress distribution and deformation on conic threadedBased on elastic mechanics, a new calculation model is established using the thick-walled-cylindricalA sample calculation for API 88.9 mm conic threaded connection indicates that the method proposedmethod.The results obtained by the proposed method and FEA method are identical.

Keywords： conic threaded connections     interference fit     radial stress     deformation     finite element analysis (FEA)    

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Modified Performance Index Method for Parameter Estimation for Industrial Process with Time-varying

Zhang Chenghui

Strategic Study of CAE 2001, Volume 3, Issue 11,   Pages 54-59

Abstract:

A new estimation method based on modified performance index is proposed for time-varying process toavoid the ill-condition of least squares method.Based on the new method,a series of new recursive algorithms such as the new recursive least squaresThe new identification method can ease the ill-condition and improve the identification accuracy without

Keywords： parameter estimation     method of calculation     least square method     time-varying system     industrial production    

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Study on Finite Element Method for Calculation of Stress on External Ring of One-way Clutch

Luo Yixin,Wu Bo

Strategic Study of CAE 2004, Volume 6, Issue 9,   Pages 56-59

Abstract:

At present there is no appropriate method for calculation of stress on external ring of a one-wayIn this paper, according to characteristics of the external ring, the method of finite element analyaisStudies have shown that finite element analyais is really an attractive method for the calculation of

Keywords： clutch     external ring     stress     finite element    

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Calculation Method of Explosively Formed Projectile Velocity

Zhao Huiying,Shen Zhaowu

Strategic Study of CAE 2007, Volume 9, Issue 8,   Pages 62-65

Abstract: instantaneous expansion of detonation product and momentum conservation,  this paper obtains velocity calculationcalculates the velocities of EFPs formed by large apex angle liner and sphere liner through the velocity calculation This velocity calculation model is applicable in engineering.

Keywords： explosively formed projectile (EFP)     instantaneous expansion of detonation product     momentum conservation     EFP velocity    

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The calculation of equivalence factor for ecological footprints in China: a methodological note

Moucheng LIU,Wenhua LI,Dan ZAHNG,Ning SU

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 6,   Pages 1015-1024 doi: 10.1007/s11783-014-0670-0

Abstract: The Ecological Footprint (EF), a physical indicator to measure the extent of humanity’s use of natural resources, has gained much attention since it was first used by Wackernagel and Rees in 1996. In order to appraise land area types with different levels of productivity, they introduced the concept of an equivalence factor. This relates to the average primary biomass productivities of different types of land (i.e. arable land, pasture, forest, water/fishery, built-up land and fossil energy land) to the regional average primary biomass productivity of all land types in a given year. Hence, the equivalence factor is an important parameter in the EF model and it directly affects the reliability of all results. Thus, this article calculates equivalence factors on the national and provincial levels in China based on Net Primary Production (NPP) from MODIS 1 km data in 2008. Firstly, based on the Light Utility Efficiency and CASA model, the NPP of different biologically productive lands of China and of different provinces was calculated. Secondly, China’s equivalence factor for 6 land area types was calculated based on NPP: arable land and built-up land has an equivalence factor of 1.71, forest and fossil energy land has a factor of 1.41, pasture has a factor of 0.44 and water/fishery 0.35; Finally, the equivalence factor of 6 land area types in different provinces was also calculated. The NPP of each ecosystem type varies along with the equivalence factor in different provinces. However, the ranking of the equivalence factors in different provinces remain the same, with that of arable land being the largest, and the water/fishery being the smallest.

Keywords： ecological footprint     equivalence factor     net primary production     biological capacity     land types    

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Calculation and analysis of sub/supercritical methanol preheating tube for continuous production of biodiesel

Wen CHEN, Weiyong YING, Cunwen WANG, Weiguo WANG, Yuanxin WU, Junfeng ZHANG,

Frontiers in Energy 2009, Volume 3, Issue 4,   Pages 423-431 doi: 10.1007/s11708-009-0075-0

Abstract: Then on the basis of these thermophysical properties, an integration method is adopted for the design

Keywords： sub/supercritical methanol     preheating tube     integration method     biodiesel    

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Unstressed state control method for process control of structure formed by stages

Qin Shunquan

Strategic Study of CAE 2009, Volume 11, Issue 10,   Pages 72-78

Abstract: quantity of unstressed state of the structural elements provides a solution to the problem of rection calculation

Keywords： bridge constructed by stages     unstressed length     unstressed curvature     parallel operation     erection calculation    

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Method of internal 3D flow field numerical simulation for hydrodynamic torque converter

SHANG Tao, ZHAO Dingxuan, ZHANG Yuankun, GUO Xiangen, SHI Xiangzhong

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 1,   Pages 86-90 doi: 10.1007/s11465-008-0012-7

Abstract: hydrodynamic torque converter and thoroughly understand the trait of inside flow, a numerical simulation methodFinally, a calculation was performed considering the influence on each impeller.The calculation method, and the proposed pressure and velocity distribution of the flow field, have practical

Keywords： velocity distribution     calculation     numerical simulation     three-element centrifugal     converter    

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Title Author Date Type Operation

Application of an efficient stochastic calculation method on the seismic analysis of an isolated structure

Wei GUO, Zhiwu YU

Journal Article

Explicit finite element method for calculation and analysis to the elasto-plastic dynamic response of

LI Liang, DU Xiuli, LI Liyun, ZHAO Chenggang

Journal Article

Unified calculation method and its application in determining the uniaxial mechanical properties of concrete

Faxing DING, Xiaoyong YING, Linchao ZHOU, Zhiwu YU

Journal Article

Calculation method of load distribution on pipe threaded connections under tension load

Shoujun CHEN, Lianxin GAO, Qi AN

Journal Article

Calculation method on shape finding of self-anchored suspension bridge with spatial cables

Yan HAN, Zhengqing CHEN, Shidong LUO, Shankui YANG

Journal Article

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

ZHOU Xiyuan, YU Ruifang

Journal Article

Study on Externality and Its Calculation Method of Existing Commercial Residential Buildings Energy Saving

Zhao Yan,Liu Xiaojun

Journal Article

Calculation method of radial stress and deformation on conic threaded connections with interference fit

Shoujun CHEN, Qiang LI, Qi AN,

Journal Article

Modified Performance Index Method for Parameter Estimation for Industrial Process with Time-varying

Zhang Chenghui

Journal Article

Study on Finite Element Method for Calculation of Stress on External Ring of One-way Clutch

Luo Yixin,Wu Bo

Journal Article

Calculation Method of Explosively Formed Projectile Velocity

Zhao Huiying,Shen Zhaowu

Journal Article

The calculation of equivalence factor for ecological footprints in China: a methodological note

Moucheng LIU,Wenhua LI,Dan ZAHNG,Ning SU

Journal Article

Calculation and analysis of sub/supercritical methanol preheating tube for continuous production of biodiesel

Wen CHEN, Weiyong YING, Cunwen WANG, Weiguo WANG, Yuanxin WU, Junfeng ZHANG,

Journal Article

Unstressed state control method for process control of structure formed by stages

Qin Shunquan

Journal Article

Method of internal 3D flow field numerical simulation for hydrodynamic torque converter

SHANG Tao, ZHAO Dingxuan, ZHANG Yuankun, GUO Xiangen, SHI Xiangzhong

Journal Article