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Distribution of background equivalent static wind load on high-rise buildings

Jianguo ZHANG , Ming GU ,

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 3,   Pages 241-248 doi: 10.1007/s11709-009-0036-z

Abstract: In this paper, the along-wind and cross-wind fluctuating load distributions along the height of high-risebuildings and their correlations are obtained through simultaneous pressure measurements in a wind tunnelquasi-mean load (QML) and gust load envelope (GLE) methods, are verified in terms of their accuracyin describing the background equivalent static wind load distribution on high-rise buildings.Based on the results, formulae of the distribution of background equivalent static load on high-rise

Keywords： high-rise buildings     along-wind     cross-wind     background equivalent static wind load     close formulae    

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Equivalent circuit and characteristic simulation of a brushless electrically excited synchronous wind

Hao WANG, Fengge ZHANG, Tao GUAN, Siyang YU

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 3,   Pages 420-426 doi: 10.1007/s11465-017-0439-9

Abstract: In view of this problem, the equivalent circuit and electromagnetic torque expression of the BEESG areThe generator is simulated and tested experimentally using the established equivalent circuit model.Results show the validity of the equivalent circuit model.

Keywords： wind power     brushless electrically excited synchronous generator     hybrid rotor     equivalent circuit    

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Analysis on running safety of train on the bridge considering sudden change of wind load caused by wind

Tian ZHANG, He XIA, Weiwei GUO

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 4,   Pages 558-567 doi: 10.1007/s11709-017-0455-1

Abstract: The calculation formulae for change of wind load acting on the car-body are derived when a train movesinto or out of the wind barrier structure, the dynamic analysis model of wind-vehicle-bridge systemwith wind barrier is established, and the influence of sudden change of wind load on the running safetyIt is shown that the sudden change of wind load caused by wind barrier has significant influence on thewind barriers, and the difference increases rapidly with wind velocity.

Keywords： wind barrier     sudden change of wind load     dynamic response     running safety     comfort    

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Estimation of composite load model with aggregate induction motor dynamic load for an isolated hybrid

Nitin Kumar SAXENA,Ashwani Kumar SHARMA

Frontiers in Energy 2015, Volume 9, Issue 4,   Pages 472-485 doi: 10.1007/s11708-015-0373-7

Abstract: hence, to effectively analyze the reactive power compensation of an isolated hybrid wind-diesel basedThe composite load is a combination of the static and dynamic load model.To develop this composite load model, the exponential load is used as a static load model and inductionmotors (IMs) are used as a dynamic load model.exponential model of static load and for the fifth and third order IM dynamic load model using state

Keywords： isolated hybrid power system (IHPS)     composite load model     static load     dynamic load     induction motor loadmodel     aggregate load    

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A Precision-Positioning Method for a High-Acceleration Low-Load Mechanism Based on Optimal Spatial and Article

Xin Chen,Youdun Bai,Zhijun Yang,Jian Gao,Gongfa Chen

Engineering 2015, Volume 1, Issue 3,   Pages 391-398 doi: 10.15302/J-ENG-2015063

Abstract:

High-speed and precision positioning are fundamental requirements for high-acceleration low-load mechanismsstructural optimization, we first reviewed the commonly flexible multibody dynamic optimization using equivalentstatic loads method (ESLM), and then we selected the modified ESLM for optimal spatial distributionmethod provides an effective theoretical support for the precision positioning of high-acceleration low-load

Keywords： high-acceleration low-load mechanism     precision positioning     spatial and temporal distribution     inertialenergy     equivalent static loads method (ESLM)     velocity planning    

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Mean wind load induced incompatibility in nonlinear aeroelastic simulations of bridge spans

Zhitian ZHANG

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 3,   Pages 605-617 doi: 10.1007/s11709-018-0499-x

Abstract: the mean wind and aeroelastic loads are applied simultaneously in time domain.loads, which leads to incorrect mean wind structural responses.It is shown that, in cases of low wind speeds, the IF-denoted model reflects correctly the mean windload properties, and results in correct mean structural responses; in contrast, the RF-denoted modelinvestigated at both moderate and high wind speeds.

Keywords： bridge     aerodynamics     nonlinear     aeroelastic model     Pseudo-steady     mean wind loads    

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On Advanced Control Methods toward Power Capture and Load Mitigation in Wind Turbines

Yuan Yuan,Jiong Tang

Engineering 2017, Volume 3, Issue 4,   Pages 494-503 doi: 10.1016/J.ENG.2017.04.023

Abstract:

This article provides a survey of recently emerged methods for wind turbine control.optimization of power capture and the reduction of loads in components under time-varying turbulent windWe divide the related research activities into three categories: modeling and dynamics of wind turbines, active control of wind turbines, and passive control of wind turbines.mostly focuses on blade pitch control, which is considered one of the key elements in facilitating load

Keywords： Wind turbine     Control approach     Power optimization     Load mitigation    

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Response in piled raft foundation of tall chimneys under along-wind load incorporating flexibility of

B. R. JAYALEKSHMI,S.V. JISHA,R. SHIVASHANKAR

Frontiers of Structural and Civil Engineering 2015, Volume 9, Issue 3,   Pages 307-322 doi: 10.1007/s11709-015-0288-8

Abstract: numerical analysis of tall reinforced concrete chimneys with piled raft foundation subjected to along-windThe chimneys were assumed to be located in terrain category 2 and subjected to a maximum wind speed ofThe along-wind loads were computed according to IS:4998 (Part 1)-1992.

Keywords： finite element method     piled raft     tall chimney     soil-structure interaction     along-wind load    

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ANN-based empirical modelling of pile behaviour under static compressive loading

Abdussamad ISMAIL

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 4,   Pages 594-608 doi: 10.1007/s11709-017-0446-2

Abstract: paper, an empirical model based on the product-unit neural network (PUNN) is developed to predict the load-deformationFrom the results obtained, it is observed that the proposed model gives a better simulation of pile load-deformation

Keywords： piles in compression     load-deformation behaviour     product-unit neural network    

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Collapse fragility assessment of steel roof framings with force limiting devices under transient wind

Linjia BAI, Yunfeng ZHANG

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 3,   Pages 199-209 doi: 10.1007/s11709-012-0168-4

Abstract: the entire roof structure can be lifted off a building, particularly for low sloped roofs subject to wind-inducedThis paper presents a fragility analysis of the collapse of steel roof frame structures under combined staticand transient wind loading.Uncertainties associated with wind load change rate and member imperfections are taken into account in

Keywords： collapse     dynamic response     fragility analysis     Monte Carlo simulation     wind load    

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Dynamic contribution of variable-speed wind energy conversion system in system frequency regulation

Yajvender Pal VERMA, Ashwani KUMAR

Frontiers in Energy 2012, Volume 6, Issue 2,   Pages 184-192 doi: 10.1007/s11708-012-0185-y

Abstract: Frequency regulation in a generation mix having large wind power penetration is a critical issue, aswind units isolate from the grid during disturbances with advanced power electronics controllers andreduce equivalent system inertia.Thus, it is important that wind turbines also contribute to system frequency control.simulations carried out in a two-area interconnected power system demonstrate the contribution of the DFIG in load

Keywords： doubly fed induction generator (DFIG)     load frequency control     inertial control     wind energy conversion    

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Finding buckling points for nonlinear structures by dynamic relaxation scheme

Mohammad REZAIEE-PAJAND, Hossein ESTIRI

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 1,   Pages 23-61 doi: 10.1007/s11709-019-0549-z

Abstract: In this tactic, the fictitious mass and damping are added to the static governing equations, and an artificialBy using DRM for nonlinear analysis, the structural static equilibrium path is obtained.Among the finding related to the structural static path are the critical and buckling points for nonlinearIt is worth emphasizing that sign of the load factor increment changes at the load limit points.The results indicate that the suggested approach can trace the complex structural static paths, even

Keywords： load factor     external work     dynamic relaxation     static equilibrium path     large displacement    

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Experimental study of wind loads on gable roofs of low-rise buildings with overhangs

Peng HUANG, Ling TAO, Ming GU, Yong QUAN

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 3,   Pages 300-317 doi: 10.1007/s11709-018-0449-7

Abstract: The wind pressure distributions on gable roofs of low-rise buildings are investigated by a series ofwind tunnel tests which consist of 99 test cases with various roof pitches, height-depth ratios and width-depthdesign of low-rise buildings in typhoon area and act as references for the future’s modification of windload codes.

Keywords： low-rise building     gable roof     wind loads     wind tunnel test     block pressure coefficient     load code    

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Reactive power compensation of an isolated hybrid power system with load interaction using ANFIS tuned

Nitin SAXENA,Ashwani KUMAR

Frontiers in Energy 2014, Volume 8, Issue 2,   Pages 261-268 doi: 10.1007/s11708-014-0298-6

Abstract: presents an adaptive neuro fuzzy interference system (ANFIS) based approach to tune the parameters of the staticsynchronous compensator (STATCOM) with frequent disturbances in load model and power input of a wind-dieselloop load interaction with the system.comparison of transient responses of IHPS is also presented when the system has only the STATCOM and the staticchange of 3% from the 1% at = 0.01 s for a 1% step increase in power input at variable wind speed

Keywords： isolated wind-diesel power system     adaptive neuro fuzzy interference system (ANFIS)     integral square error(ISE) criterion     load interaction    

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Load frequency control in deregulated power system with wind integrated system using fuzzy controller

Yajvender Pal VERMA, Ashwani KUMAR

Frontiers in Energy 2013, Volume 7, Issue 2,   Pages 245-254 doi: 10.1007/s11708-012-0218-6

Abstract: This paper presents the analysis of load frequency control (LFC) of a deregulated two-area hydro-thermalhighly competitive and distributed control environment, and the LFC becomes even more challenging when windThe overall inertia of the system reduces, as the wind unit does not provide inertia and isolates fromThe inertial control responds to frequency deviations, which takes out the kinetic energy of the windThe dynamics of the system have been obtained for a small load perturbation, and for contract violation

Keywords： frequency regulation     fuzzy controller     de-regulated power system     doubly fed induction generator (DFIG)     bilateral contract    

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Title Author Date Type Operation

Distribution of background equivalent static wind load on high-rise buildings

Jianguo ZHANG , Ming GU ,

Journal Article

Equivalent circuit and characteristic simulation of a brushless electrically excited synchronous wind

Hao WANG, Fengge ZHANG, Tao GUAN, Siyang YU

Journal Article

Analysis on running safety of train on the bridge considering sudden change of wind load caused by wind

Tian ZHANG, He XIA, Weiwei GUO

Journal Article

Estimation of composite load model with aggregate induction motor dynamic load for an isolated hybrid

Nitin Kumar SAXENA,Ashwani Kumar SHARMA

Journal Article

A Precision-Positioning Method for a High-Acceleration Low-Load Mechanism Based on Optimal Spatial and

Xin Chen,Youdun Bai,Zhijun Yang,Jian Gao,Gongfa Chen

Journal Article

Mean wind load induced incompatibility in nonlinear aeroelastic simulations of bridge spans

Zhitian ZHANG

Journal Article

On Advanced Control Methods toward Power Capture and Load Mitigation in Wind Turbines

Yuan Yuan,Jiong Tang

Journal Article

Response in piled raft foundation of tall chimneys under along-wind load incorporating flexibility of

B. R. JAYALEKSHMI,S.V. JISHA,R. SHIVASHANKAR

Journal Article

ANN-based empirical modelling of pile behaviour under static compressive loading

Abdussamad ISMAIL

Journal Article

Collapse fragility assessment of steel roof framings with force limiting devices under transient wind

Linjia BAI, Yunfeng ZHANG

Journal Article

Dynamic contribution of variable-speed wind energy conversion system in system frequency regulation

Yajvender Pal VERMA, Ashwani KUMAR

Journal Article

Finding buckling points for nonlinear structures by dynamic relaxation scheme

Mohammad REZAIEE-PAJAND, Hossein ESTIRI

Journal Article

Experimental study of wind loads on gable roofs of low-rise buildings with overhangs

Peng HUANG, Ling TAO, Ming GU, Yong QUAN

Journal Article

Reactive power compensation of an isolated hybrid power system with load interaction using ANFIS tuned

Nitin SAXENA,Ashwani KUMAR

Journal Article

Load frequency control in deregulated power system with wind integrated system using fuzzy controller

Yajvender Pal VERMA, Ashwani KUMAR

Journal Article