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Design considerations and experimental studies on semi-active smart pin joint
Yancheng LI, Jianchun LI, Bijan SAMALI, Jiong WANG,
《机械工程前沿(英文)》 2009年 第4卷 第4期 页码 363-370 doi: 10.1007/s11465-009-0074-1
关键词: magnetorheological (MR) fluids smart pin joint design consideration
Dynamic characteristics of a magnetorheological pin joint for civil structures
Yancheng LI,Jianchun LI
《机械工程前沿(英文)》 2014年 第9卷 第1期 页码 15-33 doi: 10.1007/s11465-014-0283-0
Magnetorheological (MR) pin joint is a novel device in which its joint moment resistance can be controlled in real-time by altering the applied magnetic field. The smart pin joint is intended to be used as a controllable connector between the columns and beams of a civil structure to instantaneously shift the structural natural frequencies in order to avoid resonance and therefore to reduce unwanted vibrations and hence prevent structural damage. As an intrinsically nonlinear device, modelling of this MR fluid based device is a challenging task and makes the design of a suitable control algorithm a cumbersome situation. Aimed at its application in civil structure, the main purpose of this paper is to test and characterise the hysteretic behaviour of MR pin joint. A test scheme is designed to obtain the dynamic performance of MR pin joint in the dominant earthquake frequency range. Some unique phenomena different from those of MR damper are observed through the experimental testing. A computationally-efficient model is proposed by introducing a hyperbolic element to accurately reproduce its dynamic behaviour and to further facilitate the design of a suitable control algorithm. Comprehensive investigations on the model accuracy and dependences of the proposed model on loading condition (frequency and amplitude) and input current level are reported in the last section of this paper.
关键词: Magnetorheological pin joint hyperbolic hysteresis model experimental testing frequency dependence
傅洪亮,酆广增
《中国工程科学》 2006年 第8卷 第2期 页码 34-38
提出了智能天线多载波CDMA系统中一种空域和频域联合的盲多用户自适应检测算法,它是将空域波束形成和频域合并检测合二为一,使得检测器在空域和频域两维上同时优化,从而提高了系统的检测性能。对这种空频联合检测算法的误码性能进行了分析,并与先自适应波束形成然后再进行频域合并的分步算法进行了仿真比较,仿真结果表明,提出的空频联合盲多用户自适应检测算法的检测性能优于分步检测算法。
Yue CHEN; Rong XU; Hao WU; Tao SHENG
《结构与土木工程前沿(英文)》 2022年 第16卷 第9期 页码 1089-1103 doi: 10.1007/s11709-022-0851-z
关键词: pin-supported rocking wall reinforced concrete frame seismic retrofit stiffness demand drift concentration factor multi-objective design genetic algorithm Pareto optimal solution
《结构与土木工程前沿(英文)》 页码 901-914 doi: 10.1007/s11709-023-0915-8
关键词: shield tunnel segment joint joint structural model failure mechanism
Yuqiu Han, Xiangyang Jiang, Qi Ling, Li Wu, Pin Wu, Ruiqi Tang, Xiaowei Xu, Meifang Yang, Lijiang Zhang
《医学前沿(英文)》 2019年 第13卷 第4期 页码 471-481 doi: 10.1007/s11684-019-0686-8
Yunlin LIU, Shitao ZHU
《结构与土木工程前沿(英文)》 2019年 第13卷 第5期 页码 1095-1104 doi: 10.1007/s11709-019-0538-2
关键词: PCS concrete side joint numerical simulation fiber-beam element joint model solid element joint model seismic behavior
SUN Pin, ZHANG Zhongbin, WU Fen, WAN Junxiang, JIN Xibeng, XIA Zhaolin
《医学前沿(英文)》 2007年 第1卷 第3期 页码 320-326 doi: 10.1007/s11684-007-0062-y
关键词: case-control rs2854451 regression analysis haplotype further research
Modal analysis of acoustic leak signal in pipelines using time-frequency analysis
JIAO Jing-pin, FEI Ren-yuan, HE Cun-fu, WU Bin
《机械工程前沿(英文)》 2006年 第1卷 第2期 页码 146-150 doi: 10.1007/s11465-006-0013-3
Prediction of shield tunneling-induced ground settlement using machine learning techniques
Renpeng CHEN, Pin ZHANG, Huaina WU, Zhiteng WANG, Zhiquan ZHONG
《结构与土木工程前沿(英文)》 2019年 第13卷 第6期 页码 1363-1378 doi: 10.1007/s11709-019-0561-3
关键词: EPB shield shield tunneling settlement prediction machine learning
A new acoustic emission source location technique based on wavelet transform and mode analysis
JIAO Jing-pin, HE Cun-fu, WU Bin, FEI Ren-yuan, WANG Xiu-yan
《机械工程前沿(英文)》 2006年 第1卷 第3期 页码 341-345 doi: 10.1007/s11465-006-0006-4
关键词: s propagation frequency emission signal signal propagation dispersive
基于人体髋关节转动中心分析的髋关节外骨骼仿生设计 Article
Wei YANG,Can-jun YANG,Ting XU
《信息与电子工程前沿(英文)》 2016年 第17卷 第8期 页码 792-802 doi: 10.1631/FITEE.1500286
Identification of dynamic stiffness matrix of bearing joint region
Feng HU, Bo WU, Youmin HU, Tielin SHI
《机械工程前沿(英文)》 2009年 第4卷 第3期 页码 289-299 doi: 10.1007/s11465-009-0064-3
关键词: frequency response function (FRFs) dynamic stiffness finite element synthetic substructure method joint region
Saleh YAGHOOBI, Ahmad SHOOSHTARI
《结构与土木工程前沿(英文)》 2018年 第12卷 第3期 页码 341-351 doi: 10.1007/s11709-017-0393-y
Slippage corresponds to the relative displacement of a bolted joint subjected to shear loads since the construction clearance between the bolt shank and the bolthole at assembly can cause joint slip. Deflections of towers with joint slippage effects is up to 1.9 times greater than the displacements obtained by linear analytical methods. In this study, 8 different types of joints are modelled and studied in the finite element program, and the results are verified by the experimental results which have been done in the laboratory. Moreover, several types of joints have been modelled and studied and load-deformation curves have also been presented. Finally, joint slip data for different types of angles, bolt diameter and bolt arrangements are generated. Thereupon, damping ratios (z) for different types of connections are reported. The study can be useful to help in designing of wind turbine towers with a higher level of accuracy and safety.
关键词: Joint slip cyclic loading Finite element modelling Experimental joint behavior damping ratios (
General closed-form inverse kinematics for arbitrary three-joint subproblems based on the product of
《机械工程前沿(英文)》 2022年 第17卷 第2期 doi: 10.1007/s11465-022-0681-7
关键词: inverse kinematics Paden–Kahan subproblems three-joint subproblems product of exponential closed-form solution
标题 作者 时间 类型 操作
Design considerations and experimental studies on semi-active smart pin joint
Yancheng LI, Jianchun LI, Bijan SAMALI, Jiong WANG,
期刊论文
Dynamic characteristics of a magnetorheological pin joint for civil structures
Yancheng LI,Jianchun LI
期刊论文
multi-objective design method for seismic retrofitting of existing reinforced concrete frames using pin-supported
Yue CHEN; Rong XU; Hao WU; Tao SHENG
期刊论文
Analytical algorithms of compressive bending capacity of bolted circumferential joint in metro shield
期刊论文
Antibiotics-mediated intestinal microbiome perturbation aggravates tacrolimus-induced glucose disorders in mice
Yuqiu Han, Xiangyang Jiang, Qi Ling, Li Wu, Pin Wu, Ruiqi Tang, Xiaowei Xu, Meifang Yang, Lijiang Zhang
期刊论文
Finite element analysis on the seismic behavior of side joint of Prefabricated Cage System in prefabricated
Yunlin LIU, Shitao ZHU
期刊论文
Association of the genetic polymorphism of EPHX1 and EPHX2 with the susceptibility to chronic benzene poisoning
SUN Pin, ZHANG Zhongbin, WU Fen, WAN Junxiang, JIN Xibeng, XIA Zhaolin
期刊论文
Modal analysis of acoustic leak signal in pipelines using time-frequency analysis
JIAO Jing-pin, FEI Ren-yuan, HE Cun-fu, WU Bin
期刊论文
Prediction of shield tunneling-induced ground settlement using machine learning techniques
Renpeng CHEN, Pin ZHANG, Huaina WU, Zhiteng WANG, Zhiquan ZHONG
期刊论文
A new acoustic emission source location technique based on wavelet transform and mode analysis
JIAO Jing-pin, HE Cun-fu, WU Bin, FEI Ren-yuan, WANG Xiu-yan
期刊论文
Identification of dynamic stiffness matrix of bearing joint region
Feng HU, Bo WU, Youmin HU, Tielin SHI
期刊论文
Joint slip investigation based on finite element modelling verified by experimental results on wind turbine
Saleh YAGHOOBI, Ahmad SHOOSHTARI
期刊论文