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Parametric control of structural responses using an optimal passive tuned mass damper under stationaryGaussian white noise excitations

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 asdevice is outlined, highlighting the parametric optimization approach for displacement and acceleration controlFor the vibration control of an undamped structure, the optimal parameters of a TMD, such as the optimaltuning frequency and optimal damping ratio, to stationary Gaussian white noise acceleration are investigatedseveral different controlled responses are examined, and then the displacement and acceleration based control

Keywords： tuned mass damper     parametric optimization     passive control     white noise     earthquake excitation    

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The Post Occupancy Evaluation for the Auditorium of Shanghai Grand Theater

Li Daozeng,Xu Jin

Strategic Study of CAE 2001, Volume 3, Issue 1,   Pages 15-21

Abstract:

The contemporary Grand Theater of international level in China was first built in Shanghai.the design intentions of the auditorium in terms of technological aspect, such as sight-line design, noiselevel control, acoustic design, the collected acoustic parameters measured from different points within

Keywords： auditorium     sight-line design     noise level control     acoustic design     the removable sound canopy     the alternative    

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Application of python-based Abaqus preprocess and postprocess technique in analysis of gearbox vibration and noise

Guilian YI, Yunkang SUI, Jiazheng DU

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 2,   Pages 229-234 doi: 10.1007/s11465-011-0128-z

Abstract:

To reduce vibration and noise, a damping layer and constraint layer are usually pasted on the innersurface of a gearbox thin shell, and their thicknesses are the main parameters in the vibration and noisepoint, and the normal accelerations of different points can reflect the degree of the vibration and noisecomprehensive index of the vibration characteristics of the whole structure, and the vibration acceleration levelis adopted to measure the degree of the vibration and noise.

Keywords： Abaqus secondary development     Python language     vibration and noise reduction     K-S function     vibration accelerationlevel    

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System engineering for water pollution control at the watershed level in China

Wei MENG,

Frontiers of Environmental Science & Engineering 2009, Volume 3, Issue 4,   Pages 443-452 doi: 10.1007/s11783-009-0037-0

Abstract: The present water pollution situation at watershed level in China has been systematically analyzed.The problems of water pollution control at watershed level include a lack of thought and approach, developmentalFrom 2006 to 2020, water pollution control and governance will be a national key specific project ofThe strategies of this project include establishing a water pollution control system at watershed level, river pollution control, urban water environmental pollution control, potable water safety, and water

Keywords： water pollution control     watershed     system engineering     sustainability     integrated watershed management     key    

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Water-level based discrete integrated dynamic control to regulate the flow for sewer-WWTP operation

Zhengsheng Lu, Moran Wang, Mingkai Zhang, Ji Li, Ying Xu, Hanchang Shi, Yanchen Liu, Xia Huang

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 3, doi: 10.1007/s11783-020-1222-4

Abstract: A model-free sewer-WWTP integrated control was proposed.A dynamic discrete control based on the water level was developed.A discretized water level control model was developed to conduct the real-time control based on data-automationThe discretized water level control method can regulate dynamic wastewater pumping flow of pumps followingthe dynamic water level variation in the sewer system.

Keywords： Sewer system     Integrated control     Discrete control     Water level    

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Model-based nonlinear control of hydraulic servo systems: Challenges, developments and perspectives

Jianyong YAO

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 2,   Pages 179-210 doi: 10.1007/s11465-018-0464-3

Abstract: >Hydraulic servo system plays a significant role in industries, and usually acts as a core point in controlAlthough linear theory-based control methods have been well established, advanced controller design methodsEssential nonlinearity is a unique feature and makes model-based nonlinear control more attractive, dueIn this paper, a discussion for challenges in model-based nonlinear control, latest developments andsolve pertinent problems; and at the end, some perspectives and associated research topics (measurement noise

Keywords： hydraulic servo system     adaptive control     robust control     nonlinear friction     disturbance compensation     repetitivecontrol     noise alleviation     constraint control    

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Noise control technology for generator sets in enclosures

ZHANG Nailong, YANG Wentong, FEI Renyuan

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 4,   Pages 377-384 doi: 10.1007/s11465-008-0051-0

Abstract: Currently, noise pollution is an environmental problem all over the world.The health and life of human beings are affected by loud noise from high power generator sets.To reduce such noise, a sound-attenuated enclosure is widely used for its high performance and convenientBy installing equipment in an enclosure, noise is controlled and prevented from radiating.In this paper, noise control techniques for enclosures are presented.

Keywords： equipment     generator     sound-attenuated enclosure     convenient     Enclosure development    

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Fault-tolerant control of an open-winding brushless doubly-fed wind power generator system with dualthree-level converter

Shi JIN, Long SHI, Sul ADEMI, Yue ZHANG, Fengge ZHANG

Frontiers in Energy 2023, Volume 17, Issue 1,   Pages 149-164 doi: 10.1007/s11708-020-0711-2

Abstract: reliability requirement of a brushless doubly-fed generation system applied to large offshore wind farms, the controlConsequently, the two ends of the control winding are connected via dual three-phase converters for theTherefore, a novel fault-tolerant control strategy based on the direct power control scheme is broughtBased on the direct power control (DPC) strategy, the post-fault voltage vector selection method is explainedThe fault-tolerant control strategy proposed enables the open-winding brushless doubly-fed reluctance

Keywords： open-winding     brushless doubly-fed reluctance generator (BDFRG)     direct power control     fault-tolerant control     multi-level converter     wind power    

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Frequency domain a9ctive vibration control of a flexible plate based on neural networks

Jinxin LIU, Xuefeng CHEN, Zhengjia HE

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 2,   Pages 109-117 doi: 10.1007/s11465-013-0252-z

Abstract:

A neural-network (NN)-based active control system was proposed to reduce the low frequency noise radiationMulti-frequency control in frequency domain was achieved by simulation through the NN-based control systemsA pre-testing experiment of the control system on a real simply supported plate was conducted.The NN-based control algorithm was shown to perform effectively.These works lay a solid foundation for the active vibration control of mechanical structures.

Keywords： active vibration control (AVC)     neural network (NN)     low frequency noise     frequency domain control     multi-frequencycontrol    

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Unified power quality conditioner based on a three-level NPC inverter using fuzzy control techniques

Salim CHENNAI,M-T BENCHOUIA

Frontiers in Energy 2014, Volume 8, Issue 2,   Pages 221-239 doi: 10.1007/s11708-014-0317-7

Abstract: This paper presents a novel and efficient control scheme for unified power quality conditioner (UPQC)based on three-level neutral point clamped (NPC) inverter using fuzzy logic techniques.The shunt and series APF reference signals derived from the control algorithm and sensed signals areTo improve the UPQC capability, fuzzy logic techniques are introduced to control the series APF.

Keywords： three-level neutral point clamped (NPC) inverter     unified power quality conditioner (UPQC)     current harmonics    

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Research on the key technology of level pre-assembly of steel tower segments

Zhang Yongli,Gu Bifeng

Strategic Study of CAE 2010, Volume 12, Issue 4,   Pages 48-52

Abstract:

In this paper, we researched the key technology of the level pre-assemblyenvironment effect, supporting conditions and the metal contact rate measures, we solved the problem of the controlLevel pre-assembly of steel tower fills the technology gaps in China and provides a strong basis for

Keywords： steel tower     level pre-assembly     support control     apply level force    

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Wavelet-based iterative data enhancement for implementation in purification of modal frequency for extremely noisy ambient vibration tests in Shiraz-Iran

Hassan YOUSEFI, Alireza TAGHAVI KANI, Iradj MAHMOUDZADEH KANI, Soheil MOHAMMADI

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 2,   Pages 446-472 doi: 10.1007/s11709-019-0605-8

Abstract: The main purpose of the present study is to enhance high-level noisy data by a wavelet-based iterativeMost of denoising methods fail to filter such noise properly.Both the signal-to-noise ratio and the peak signal-to-noise ratio are small.Due to the fact that it is impossible to completely denoise such high-level noisy data, the enhancing

Keywords： ambient vibration test     high level noise     iterative signal enhancement     wavelet     cross and autocorrelation    

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Bio-inspired heuristics hybrid with interior-point method for active noise control systems without identification None

Muhammad Asif Zahoor RAJA, Muhammad Saeed ASLAM, Naveed Ishtiaq CHAUDHARY, Wasim Ullah KHAN

Frontiers of Information Technology & Electronic Engineering 2018, Volume 19, Issue 2,   Pages 246-259 doi: 10.1631/FITEE.1601028

Abstract: In this study, hybrid computational frameworks are developed for active noise control (ANC) systems usingdesign method is evaluated using an ANC model of a headset with sinusoidal, random, and complex random noise

Keywords： Active noise control (ANC)     Filtered extended least mean square (FXLMS)     Memetic computing     Genetic algorithms    

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Design of noise-reduction seats for high-speed trains

Xiaojun DENG, Yanju ZHAO, Haijin ZHANG, Renzhong SHUAI, Leiwei ZHU

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 3,   Pages 385-389 doi: 10.1007/s11465-017-0438-x

Abstract: reduce noise.interior noise spectral characteristics.seats substantially reduced the noise in an entire train car.noise level at a standard point in the passenger car by 1.5 dB.Therefore, the noise-reduction seats are effective in noise reduction.

Keywords： high-speed train     sound-absorbing materials     perforated board     noise-reduction seats    

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Power quality improvement using fuzzy logic controller for five-level shunt active power filter under

Amar BENAISSA,Boualaga RABHI,Ammar MOUSSI

Frontiers in Energy 2014, Volume 8, Issue 2,   Pages 212-220 doi: 10.1007/s11708-013-0284-4

Abstract: In this paper, a five-level inverter is used as a shunt active power filter (APF), taking advantagesThe APF control strategy is based on the use of self-tuning filters (STF) for reference current generationThe MATLAB fuzzy logic toolbox is used for implementing the fuzzy logic control algorithm.

Keywords： filter (APF)     harmonics isolator     distorted voltage conditions     self-tuning filters (STF)     fuzzy logic control    

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Title Author Date Type Operation

Parametric control of structural responses using an optimal passive tuned mass damper under stationaryGaussian white noise excitations

Min-Ho CHEY, Jae-Ung KIM

Journal Article

The Post Occupancy Evaluation for the Auditorium of Shanghai Grand Theater

Li Daozeng,Xu Jin

Journal Article

Application of python-based Abaqus preprocess and postprocess technique in analysis of gearbox vibration and noise

Guilian YI, Yunkang SUI, Jiazheng DU

Journal Article

System engineering for water pollution control at the watershed level in China

Wei MENG,

Journal Article

Water-level based discrete integrated dynamic control to regulate the flow for sewer-WWTP operation

Zhengsheng Lu, Moran Wang, Mingkai Zhang, Ji Li, Ying Xu, Hanchang Shi, Yanchen Liu, Xia Huang

Journal Article

Model-based nonlinear control of hydraulic servo systems: Challenges, developments and perspectives

Jianyong YAO

Journal Article

Noise control technology for generator sets in enclosures

ZHANG Nailong, YANG Wentong, FEI Renyuan

Journal Article

Fault-tolerant control of an open-winding brushless doubly-fed wind power generator system with dualthree-level converter

Shi JIN, Long SHI, Sul ADEMI, Yue ZHANG, Fengge ZHANG

Journal Article

Frequency domain a9ctive vibration control of a flexible plate based on neural networks

Jinxin LIU, Xuefeng CHEN, Zhengjia HE

Journal Article

Unified power quality conditioner based on a three-level NPC inverter using fuzzy control techniques

Salim CHENNAI,M-T BENCHOUIA

Journal Article

Research on the key technology of level pre-assembly of steel tower segments

Zhang Yongli,Gu Bifeng

Journal Article

Wavelet-based iterative data enhancement for implementation in purification of modal frequency for extremely noisy ambient vibration tests in Shiraz-Iran

Hassan YOUSEFI, Alireza TAGHAVI KANI, Iradj MAHMOUDZADEH KANI, Soheil MOHAMMADI

Journal Article

Bio-inspired heuristics hybrid with interior-point method for active noise control systems without identification

Muhammad Asif Zahoor RAJA, Muhammad Saeed ASLAM, Naveed Ishtiaq CHAUDHARY, Wasim Ullah KHAN

Journal Article

Design of noise-reduction seats for high-speed trains

Xiaojun DENG, Yanju ZHAO, Haijin ZHANG, Renzhong SHUAI, Leiwei ZHU

Journal Article

Power quality improvement using fuzzy logic controller for five-level shunt active power filter under

Amar BENAISSA,Boualaga RABHI,Ammar MOUSSI

Journal Article