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Colocated MIMO radar waveform-design based on two-step optimizations in spatial and spectral domains Article

Yu-xi WANG, Guo-ce HUANG, Wei LI, Jin-liang LI

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 7, Pages 1021-1032 doi: 10.1631/FITEE.1601726

Abstract: We propose an efficient colocated multiple-input multiple-output radar waveform-design method based onthe proposed method is demonstrated via numerical results and comparisons with other approaches to waveformdesign.

Keywords： Multiple-input multiple-output (MIMO) radar Waveform design Spectral factorization Fractional quadratically

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Research of seismic events waveform in deep copper mine

Yang Zhiguo,Yu Runcang,Guo Ran

Strategic Study of CAE 2008, Volume 10, Issue 8, Pages 69-72

Abstract: According to the analysis results of a detecting blast and an identified seismic event,the waveform analysis

Keywords： deep mining rockburst seismic monitoring waveform analysis

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The Waveform Analysis and Engineering Computation of the Rail-beam Straightening Force in the Straightening

Shen Jiuyan

Strategic Study of CAE 2000, Volume 2, Issue 1, Pages 47-52

Abstract: heavy rail-beam straightening mill 1300 (the first and biggest set in China) and straightening forces waveform

Keywords： roller type straightening mills straightening forces straightening forces components pressure steps waveform

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Frequency-Domain Full-Waveform Inversion Based on Tunnel Space Seismic Data Article

Mingyu Yu,Fei Cheng,Jiangping Liu,Daicheng Peng,Zhijian Tian

Engineering 2022, Volume 18, Issue 11, Pages 197-206 doi: 10.1016/j.eng.2021.06.018

Abstract: Thus, we apply a frequency-domain acoustic full-waveform inversion (FWI) method to obtain high-resolution

Keywords： Tunnel seismic detection Full-waveform inversion Frequency select strategy Observation system

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Experimental study on wire breakage detection by acoustic emission

Limin SUN, Ji QIAN

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 4, Pages 503-509 doi: 10.1007/s11709-011-0132-8

Abstract: paper experimentally investigated wire breakage detection in a steel cable by acoustic emission (AE) waveformIn the experiments, the attenuation laws of waveform amplitudes were discussed based on stress wave propagationFinally, based on the waveform attenuation laws and the linear position method, the amplitude and energyof the source were confirmed through the measured waveform to identify the source category.

Keywords： acoustic emission (AE) waveform wire breakage attenuation factor wave velocity

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Impact drive rotary precision actuator with piezoelectric bimorphs

ZHANG Hongzhuang, ZENG Ping, HUA Shunming, CHENG Guangming, YANG Zhigang

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 1, Pages 71-75 doi: 10.1007/s11465-008-0008-3

Abstract: results show that an actuator excited by fixed-frequency and the adjustable-amplitude ramp voltage waveform

Keywords： specific fixed-frequency waveform piezoelectric cantilever mechanisms adjustable-amplitude

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The research of inversion algorithm of significant wave height with high resolution based HY-2 waveform

Wang Guizhong,Zhang Jie,Miao Hongli,Li Guoqiang,Wang Xin

Strategic Study of CAE 2014, Volume 16, Issue 6, Pages 60-64

Abstract: Based on HY-2 altimeter waveform data, we develop an inversion algorithm of SWH with high-resolution.Applied this method to one pass waveform data, the result shows the inversion algorithm is effective.Comparing the SWH derived from 1 s waveform, the SWH derived by this method could be increased by aboutThe SWH derived from HY-2 altimeter 20 Hz waveform is reliable and could be applied for high resolution

Keywords： HY-2 significant wave height inversion algorithm high resolution

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Reliability design method for steam turbine blades

SHI Jinyuan

Frontiers in Energy 2008, Volume 2, Issue 4, Pages 363-368 doi: 10.1007/s11708-008-0073-7

Abstract: , vibration frequencies and exciting force frequencies of blades as random variables, a reliability designSome blade reliability design calculation formulas for a dynamic stress design method, a safety ratiodesign method for fatigue strength, and a vibration reliability design method for the first and secondWith these methods, the design reliability of steam turbine blades can be guaranteed in the design stageThis research may provide some scientific basis for reliability design of steam turbine blades.

Keywords： design reliability force probability purport reliability design

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Assembly design system based on engineering connection

Wensheng YIN

Frontiers of Mechanical Engineering 2016, Volume 11, Issue 4, Pages 423-432 doi: 10.1007/s11465-016-0382-1

Abstract:

An assembly design system is an important part of computer-aided design systems, which are importanttools for realizing product concept design.The traditional assembly design system does not record the connection information of production on theengineering layer; consequently, the upstream design idea cannot be fully used in the downstream designAn assembly design model based on the relationship of engineering connection is presented.

Keywords： product design assembly design engineering connection assembly sequence planning

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Controversy on design science and competitiveness of design

Xie Youbai

Strategic Study of CAE 2014, Volume 16, Issue 8, Pages 4-13

Abstract: design’, ‘period of industrial design’ and ‘period of post-industrial design’ was given, especially in the period of industrial design.The problem now is not that one who can or cannot design but the design with or without competitivenessscience and make clear the change in design cognition and idea.The concepts of ‘competitive design’ and ‘inheriting design’ are suggested in

Keywords： design industrial design design science knowledge knowledge acquirement

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Optimal dome design considering member-related design constraints

Tugrul TALASLIOGLU

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 5, Pages 1150-1170 doi: 10.1007/s11709-019-0543-5

Abstract: This study proposes to optimize the design of geometrically nonlinear dome structures.analysis with the provisions of American Petroleum Institute specification is employed to optimize the designMoreover, the inclusion of shape-related design variables leads to a decrease in both the weights ofHowever, the designer easily determines the most requested optimal design through the archiving featureConsequently, PAGA is recommended as an optimization tool for the design optimization of geometrically

Keywords： dome structure geometric nonlinearity multi-objective optimization API RP2A-LRFD

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LARM PKM solutions for torso design in humanoid robots

Marco CECCARELLI

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 4, Pages 308-316 doi: 10.1007/s11465-014-0318-6

Abstract: In this paper problems for design and operation of solutions for a robotic torso are discussed by referring

Keywords： humanoid robots torso design parallel manipulators (PKM) conceptual design

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Structural optimal design of a swing vane compressor

Junjie MA,Xiang CHEN,Zongchang QU

Frontiers in Energy 2019, Volume 13, Issue 4, Pages 764-769 doi: 10.1007/s11708-016-0449-z

Abstract: compressor geometry model, thermodynamic model and kinetic model, the mathematical model of optimum designThe length of the cylinder, radius of the rotor and cylinder were defined as design variables and theThe study shows that the friction loss of the compressor are greatly reduced by optimized design in a

Keywords： swing vane compressor simulation optimization design

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Ranking of design scenarios of TMD for seismically excited structures using TOPSIS

Sadegh ETEDALI

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 6, Pages 1372-1386 doi: 10.1007/s11709-020-0671-y

Abstract: In this paper, design scenarios of a tuned mass damper (TMD) for seismically excited structures are rankedAccordingly, 10 design scenarios in two cases, namely unconstrained and constrained for the maximum TMDfor order performance by similarity to ideal solution (TOPSIS) is utilized for ranking the adopted designSimulation results indicate that the minimization of the maximum story displacement is the optimum designThe findings of this study can be useful and important in the optimum design of TMD parameters with respect

Keywords： seismic-excited building TMD optimum design PSO design scenario TOPSIS