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Variational mode decomposition based modal parameter identification in civil engineering
Mingjie ZHANG, Fuyou XU
《结构与土木工程前沿(英文)》 2019年 第13卷 第5期 页码 1082-1094 doi: 10.1007/s11709-019-0537-3
关键词: modal parameter identification variational mode decomposition civil structure nonlinear system closely spaced modes
Non-convex sparse optimization-based impact force identification with limited vibration measurements
《机械工程前沿(英文)》 2023年 第18卷 第3期 doi: 10.1007/s11465-023-0762-2
关键词: impact force identification inverse problem sparse regularization under-determined condition alternating direction method of multipliers
The research on structural damage identification using rough set and integrated neural network
Juelong LI, Hairui LI, Jianchun XING, Qiliang YANG
《机械工程前沿(英文)》 2013年 第8卷 第3期 页码 305-310 doi: 10.1007/s11465-013-0259-5
A huge amount of information and identification accuracy in large civil engineering structural damage identification has not been addressed yet. To efficiently solve this problem, a new damage identification method based on rough set and integrated neural network is first proposed. In brief, rough set was used to reduce attributes so as to decrease spatial dimensions of data and extract effective features. And then the reduced attributes will be put into the sub-neural network. The sub-neural network can give the preliminary diagnosis from different aspects of damage. The decision fusion network will give the final damage identification results. The identification examples show that this method can simplify the redundant information to reduce the neural network model, making full use of the range of information to effectively improve the accuracy of structural damage identification.
关键词: rough set integrated neural network damage identification decision making fusion
《机械工程前沿(英文)》 2022年 第17卷 第3期 doi: 10.1007/s11465-022-0691-5
关键词: multifingered hand mechanism design robot safety variable stiffness actuator
《结构与土木工程前沿(英文)》 2021年 第15卷 第4期 页码 851-866 doi: 10.1007/s11709-021-0739-3
关键词: damage identification beam-to-column connection time-domain response optimization
Inverse identification of the mechanical parameters of a pipeline hoop and analysis of the effect of
Ye GAO, Wei SUN
《机械工程前沿(英文)》 2019年 第14卷 第3期 页码 358-368 doi: 10.1007/s11465-019-0539-9
关键词: inverse identification pipeline hoop frequency response function mechanical parameters preload
A super-element approach for structural identification in time domain
LI Jie, ZHAO Xin
《机械工程前沿(英文)》 2006年 第1卷 第2期 页码 215-221 doi: 10.1007/s11465-006-0004-4
关键词: numerical effective decomposing parameterization procedure divide-and-conquer ability time-domain identification
Jiasheng LI, Xingzhan LI, Wei WEI, Pinkuan LIU
《机械工程前沿(英文)》 2020年 第15卷 第2期 页码 227-239 doi: 10.1007/s11465-020-0587-1
关键词: bidimensional empirical mode decomposition spatial spectrum analysis boundary effect vibration identification surface topography
Damage identification of a large-span concrete cable-stayed bridge based on genetic algorithm
ZHU Jinsong, XIAO Rucheng
《结构与土木工程前沿(英文)》 2007年 第1卷 第2期 页码 170-175 doi: 10.1007/s11709-007-0018-y
关键词: accurate primary global stability complex identification
Preload characteristics identification of the piezoelectric-actuated 1-DOF compliant nanopositioning
Ruizhou WANG, Xianmin ZHANG
《机械工程前沿(英文)》 2015年 第10卷 第1期 页码 20-36 doi: 10.1007/s11465-015-0328-z
Packaged piezoelectric ceramic actuators (PPCAs) and compliant mechanisms are attractive for nanopositioning and nanomanipulation due to their ultra-high precision. The way to create and keep a proper and steady connection between both ends of the PPCA and the compliant mechanism is an essential step to achieve such a high accuracy. The connection status affects the initial position of the terminal moving plate, the positioning accuracy and the dynamic performance of the nanopositioning platform, especially during a long-time or high-frequency positioning procedure. This paper presents a novel external preload mechanism and tests it in a 1-degree of freedom (1-DOF) compliant nanopositioning platform. The 1-DOF platform utilizes a parallelogram guiding mechanism and a parallelogram load mechanism to provide a more accurate actual input displacement and output displacement. The simulation results verify the proposed stiffness model and dynamic model of the platform. The values of the preload displacement, actual input displacement and output displacement can be measured by three capacitive sensors during the whole positioning procedure. The test results show the preload characteristics vary with different types or control modes of the PPCA. Some fitting formulas are derived to describe the preload displacement, actual input displacement and output displacement using the nominal elongation signal of the PPCA. With the identification of the preload characteristics, the actual and comprehensive output characteristics of the PPCA can be obtained by the strain gauge sensor (SGS) embedded in the PPCA.
关键词: nanopositioning preload characteristic packaged piezoelectric ceramic actuator compliant mechanism
Theory analysis and system identification methods on thermal dynamics characteristics of ballscrews
XIA Junyong, HU Youmin, WU Bo, SHI Tielin
《机械工程前沿(英文)》 2008年 第3卷 第4期 页码 408-415 doi: 10.1007/s11465-008-0061-y
《能源前沿(英文)》 2022年 第16卷 第1期 页码 121-129 doi: 10.1007/s11708-021-0780-x
关键词: power distribution network data-driven topology identification distributed energy resource maximal information coefficient
《医学前沿(英文)》 页码 1006-1009 doi: 10.1007/s11684-023-1000-3
关键词: family craniofacial microsomia Identification novel mutations
Risk Identification and Mitigation Strategies for Deepwater Oilfields Development
Bao-quan Yang,Li Yang,Fan-jie Shang,Xin Zhang,Chen-xi Li
《工程管理前沿(英文)》 2016年 第3卷 第4期 页码 356-361 doi: 10.15302/J-FEM-2016057
关键词: deepwater oilfield field development plan implementation reservoir management risk identification mitigation strategies
Xuzhan ZHOU,Shanshan LIU,Mingkun WANG,Yiping DAI,Yaohua TANG
《能源前沿(英文)》 2014年 第8卷 第3期 页码 386-393 doi: 10.1007/s11708-014-0323-9
关键词: high voltage (HV) grid frequency stability parameter identification primary frequency regulation (PFR)
标题 作者 时间 类型 操作
Variational mode decomposition based modal parameter identification in civil engineering
Mingjie ZHANG, Fuyou XU
期刊论文
Non-convex sparse optimization-based impact force identification with limited vibration measurements
期刊论文
The research on structural damage identification using rough set and integrated neural network
Juelong LI, Hairui LI, Jianchun XING, Qiliang YANG
期刊论文
Mechanical design, modeling, and identification for a novel antagonistic variable stiffness dexterous
期刊论文
Damage identification in connections of moment frames using time domain responses and an optimization
期刊论文
Inverse identification of the mechanical parameters of a pipeline hoop and analysis of the effect of
Ye GAO, Wei SUN
期刊论文
Relative vibration identification of cutter and workpiece based on improved bidimensional empirical mode
Jiasheng LI, Xingzhan LI, Wei WEI, Pinkuan LIU
期刊论文
Damage identification of a large-span concrete cable-stayed bridge based on genetic algorithm
ZHU Jinsong, XIAO Rucheng
期刊论文
Preload characteristics identification of the piezoelectric-actuated 1-DOF compliant nanopositioning
Ruizhou WANG, Xianmin ZHANG
期刊论文
Theory analysis and system identification methods on thermal dynamics characteristics of ballscrews
XIA Junyong, HU Youmin, WU Bo, SHI Tielin
期刊论文
Data-driven distribution network topology identification considering correlated generation power of distributed
期刊论文
Identification of novel mutations in and in a family with craniofacial microsomia: evidence of digenic
期刊论文
Risk Identification and Mitigation Strategies for Deepwater Oilfields Development
Bao-quan Yang,Li Yang,Fan-jie Shang,Xin Zhang,Chen-xi Li
期刊论文