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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 codescope of application for the classical damping theory is analyzed and the necessity of the research on mode-superpositionThe progresses on the mode superposition response spectrum theory are discussed.This includes: 1) the complex mode superposition method (in real form) for the non-classically dampedof the non-classically damped system with overcritical damping and the calculation method of seismic response

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

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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: Both the mode superposition method and Fourier transform method are developed for calculating the dynamicresponse of the structural systems with various damping models.

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

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Identification of system mode parameters using response measurement only

Huo Bingyong and Yi Weijian

Strategic Study of CAE 2015, Volume 17, Issue 1,   Pages 151-160

Abstract: Harmonic parameters of a point response can be extracted by spectrum analysis using the measurements

Keywords： output-only response； identification of system mode parameters； space curve fitting； spectrum overlapping    

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The contribution of cross modality to fatigue damage accumulation of structure subjected to random vibration

Zhu Xuewang,Liu Qinglin

Strategic Study of CAE 2008, Volume 10, Issue 10,   Pages 36-41

Abstract:

The contribution level of cross modality to vibration response of structurehypothesis with lightly damping and sparse modality is generally applied to solve approximately vibration responseApproximate solution of displacement response can satisfy engineering requirement with certain precisionbut the error between approximate response and exact one, maybe tiny, can heavily effect the peak frequencyRandom response is obtained by means of superposition methods and fatigue damage accumulation of structure

Keywords： cross modality     random vibration     fatigue damage accumulation     random vibration response     modality superposition    

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Anefficient quadrature demodulator for medical ultrasound imaging

Hao ZHOU,Yin-fei ZHENG

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 4,   Pages 301-310 doi: 10.1631/FITEE.1400205

Abstract: In this paper, we propose an efficient quadrature demodulation method for B-mode and color flow imaging, in which the RF signal is demodulated by a pair of finite impulse response filters without mixing with

Keywords： B-mode ultrasound imaging     Color flow imaging     Quadrature demodulation     Finite impulse response filter    

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Exponential response electrical pole-changing method for a five-phase induction machine with a currentsliding mode control strategy Article

Jia-qiang YANG, Rong-sen YIN, Xiao-jun ZHANG, Jin HUANG

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 8,   Pages 1151-1166 doi: 10.1631/FITEE.1601728

Abstract: To reduce the torque ripple and speed fluctuation of the machine, we investigate an exponential responseelectrical pole-changing method for five-phase IM with a current sliding-mode control strategy.Current sliding-mode controllers are applied instead of conventional proportional integral (PI) controllersto adjust the current vectors, and exponential current response achieves a smooth transition betweenCompared with the step response pole-changing with PI control method, the proposed pole-changing method

Keywords： Five-phase induction machine     Pole-change     Sliding-mode control     Exponential response     Torque ripple    

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Full-field dynamic strain reconstruction of an aero-engine blade from limited displacement responses

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 1, doi: 10.1007/s11465-022-0731-1

Abstract: A displacement-to-strain transformation matrix is derived on the basis of the blade mode shapes in thelow-cost, real-time, and visualized measurement of blade full-field dynamic strain using displacement response

Keywords： aero-engine blade     displacement response     dynamic strain reconstruction     mode shape     strain gauge    

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A Realization to Enhance the Signal Noise Ratio With Superposition on the Same Phase Signal

Han Xiuting,Wang Jiechun,Jiao Zhenqaing,Gao Fei,Song Yubo

Strategic Study of CAE 2005, Volume 7, Issue 10,   Pages 64-68

Abstract: paper talks about method to enhance vibration signals gotten by hitting iron pipe to cause a vibrating responseSince the noise in signals could be treated as white noise, after multiple superposition the added noise

Keywords： vibrating wave     reflection wave     signal enhancement     software for superposition signal    

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Seismic performance of prestressed concrete stand structure supporting retractable steel roof

Yiyi CHEN, Dazhao ZHANG, Weichen XUE, Wensheng LU

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 2,   Pages 117-124 doi: 10.1007/s11709-009-0024-3

Abstract: effects of roof configurations in opening and closing, the effect of pre-stress on the structural seismic responsewas found that the roof status has great effect on the natural period, vibration modes, and seismic responseof the whole structure, the stand response to horizontal seismic excitation is stronger in roof openingconfiguration than in closing state, and the response mode is dominantly translational rather than rotational, though the stand is characterized by its fundamentally torsional vibration mode.

Keywords： retractable steel roof     prestressed concrete     seismic performance     failure mode     inelastic response     shaking    

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Optimization design of anti-seismic engineering measures for intake tower based on non-dominated sorting genetic algorithm-II

Frontiers of Structural and Civil Engineering   Pages 1428-1441 doi: 10.1007/s11709-023-0998-2

Abstract: northwest China was considered the research object, and its natural vibration characteristics and dynamic responsewere first analyzed using the mode decomposition response spectrum method based on a three-dimensionaladopted to optimize the anti-seismic scheme combination by comprehensively considering the dynamic tower response

Keywords： intake tower     NSGA-II     mode decomposition response spectrum method     anti-seismic engineering measures    

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An efficient method for the dynamic interaction of open structure-foundation systems

LIU Jingbo, GU Yin, LI Bin, WANG Yan

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 3,   Pages 340-345 doi: 10.1007/s11709-007-0045-8

Abstract: Subsequently, the modal superposition method is adopted to solve the approximated hermetic system.

Keywords： structure-foundation interaction     superposition     interaction problem     freedom     efficient    

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A discussion of objective function representation methods in global optimization

Panos M. PARDALOS, Mahdi FATHI

Frontiers of Engineering Management 2018, Volume 5, Issue 4,   Pages 515-523 doi: 10.15302/J-FEM-2018044

Abstract: We then explain Kolmogorov’s superposition and its application in GO.

Keywords： global optimization     decomposition techniques     multi-objective     DC programming     Kolmogorov’s superposition    

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Robust SVM-direct torque control of induction motor based on sliding mode controller and sliding mode

Abdelkarim AMMAR,Amor BOUREK,Abdelhamid BENAKCHA

Frontiers in Energy 2020, Volume 14, Issue 4,   Pages 836-849 doi: 10.1007/s11708-017-0444-z

Abstract: It describes a coupling of sliding mode direct torque control (DTC) with sliding mode flux and speedThis algorithm uses direct torque control basics and the sliding mode approach.and flux controllers are designed to overcome the conventional SVM-DTC drawbacks and to ensure fast responseThe sliding mode controller is used to generate reference voltages in stationary frame and give themThe second aim of this paper is to design a sliding mode speed/flux observer which can improve the control

Keywords： induction motor     direct torque control (DTC)     space vector modulation (SVM)     sliding mode control (SMC)     sliding mode observer (SMO)     dS1104    

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Parallel Authentication Modes Based on Double Blocks or Key Counter

Huang Yuhua,Huai Aiqun,Song Yubo

Strategic Study of CAE 2004, Volume 6, Issue 7,   Pages 70-74

Abstract:

The CBC - MAC mode is not a parallel one.The PKCB mode had a marked improvement on security & speed over parallel authentication mode, PMACAnd it may be combined with the CTR (counter) encryption mode to form a full block cipher mode.block cipher mode (2CTR)，too.The 2CTR mode had a performance advantage over the standard mode, CCM (CTR with CBC - MAC).

Keywords： authentication mode     CBC - MAC mode     PMAC mode     CTR mode     CCM mode    

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Probabilistic stability of uncertain composite plates and stochastic irregularity in their buckling mode

Frontiers of Structural and Civil Engineering   Pages 179-190 doi: 10.1007/s11709-022-0888-z

Abstract: plate were considered Gaussian random fields and their effects on the buckling load and corresponding modeThe probabilistic response space was obtained by employing the non-intrusive polynomial chaos method.spatially varying stochastic properties on the critical load of the plate and the irregularity of buckling modethe plate properties as random fields, a significant stochastic irregularity is obtained in buckling mode

Keywords： uncertain composite plate     stochastic assume mode method     Karhunen−Loève theorem     polynomial chaos approach     plate buckling     irregularity in buckling mode shapes    

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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

Dynamics of structural systems with various frequency-dependent damping models

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

Journal Article

Identification of system mode parameters using response measurement only

Huo Bingyong and Yi Weijian

Journal Article

The contribution of cross modality to fatigue damage accumulation of structure subjected to random vibration

Zhu Xuewang,Liu Qinglin

Journal Article

Anefficient quadrature demodulator for medical ultrasound imaging

Hao ZHOU,Yin-fei ZHENG

Journal Article

Exponential response electrical pole-changing method for a five-phase induction machine with a currentsliding mode control strategy

Jia-qiang YANG, Rong-sen YIN, Xiao-jun ZHANG, Jin HUANG

Journal Article

Full-field dynamic strain reconstruction of an aero-engine blade from limited displacement responses

Journal Article

A Realization to Enhance the Signal Noise Ratio With Superposition on the Same Phase Signal

Han Xiuting,Wang Jiechun,Jiao Zhenqaing,Gao Fei,Song Yubo

Journal Article

Seismic performance of prestressed concrete stand structure supporting retractable steel roof

Yiyi CHEN, Dazhao ZHANG, Weichen XUE, Wensheng LU

Journal Article

Optimization design of anti-seismic engineering measures for intake tower based on non-dominated sorting genetic algorithm-II

Journal Article

An efficient method for the dynamic interaction of open structure-foundation systems

LIU Jingbo, GU Yin, LI Bin, WANG Yan

Journal Article

A discussion of objective function representation methods in global optimization

Panos M. PARDALOS, Mahdi FATHI

Journal Article

Robust SVM-direct torque control of induction motor based on sliding mode controller and sliding mode

Abdelkarim AMMAR,Amor BOUREK,Abdelhamid BENAKCHA

Journal Article

Parallel Authentication Modes Based on Double Blocks or Key Counter

Huang Yuhua,Huai Aiqun,Song Yubo

Journal Article

Probabilistic stability of uncertain composite plates and stochastic irregularity in their buckling mode

Journal Article