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Concepts and implementation of strain-based criteria in design codes for steel structures
Reidar BJORHOVDE
《结构与土木工程前沿(英文)》 2012年 第6卷 第3期 页码 210-216 doi: 10.1007/s11709-012-0165-7
关键词: steel stress-strain characteristics tension test strain design actual behavior improved design codes
Parametric study on damage control design of SMA dampers in frame-typed steel piers
Xiaoqun LUO, Hanbin GE, Tsutomu USAMI,
《结构与土木工程前沿(英文)》 2009年 第3卷 第4期 页码 384-394 doi: 10.1007/s11709-009-0065-7
关键词: damage control design shape memory alloy parameter study displacement-based verification strain-based verification time history analysis
Test-driven verification/validation of model transformations
László LENGYEL,Hassan CHARAF
《信息与电子工程前沿(英文)》 2015年 第16卷 第2期 页码 85-97 doi: 10.1631/FITEE.1400111
关键词: Graph rewriting based model transformations Verification/validation Test-driven verification
李鹤林,吉玲康,田伟
《中国工程科学》 2010年 第12卷 第5期 页码 84-90
近年来,我国管道企业和相关科研院所联合攻关,取得了一批关键技术成果,这些成果包括:研制了X70,X80钢级高性能管线钢及焊管、管件;突破国际上螺旋缝埋弧焊管的使用禁区,确立了具有中国特色的“大口径高压输送主干线螺旋埋弧焊管与直缝埋弧焊管联合使用”的技术路线;在国内首次研究了高压输气管道动态断裂与止裂问题,采用Battelle双曲线模型预测了西气东输和西气东输二线等管道延性断裂的止裂韧性;在国内首次研究了油气管道基于应变的设计方法,解决了该设计方法及抗大变形管线钢管在强震区和活动断层管段应用的技术难题;解决了高强度焊管的腐蚀控制和应变时效控制等技术。
FEM-based strain analysis study for multilayer sheet forming process
Rongjing ZHANG,Lihui LANG,Rizwan ZAFAR
《机械工程前沿(英文)》 2015年 第10卷 第4期 页码 373-379 doi: 10.1007/s11465-015-0371-9
Fiber metal laminates have many advantages over traditional laminates (e.g., any type of fiber and resin material can be placed anywhere between the metallic layers without risk of failure of the composite fabric sheets). Furthermore, the process requirements to strictly control the temperature and punch force in fiber metal laminates are also less stringent than those in traditional laminates. To further explore the novel method, this study conducts a finite element method-based (FEM-based) strain analysis on multilayer blanks by using the 3A method. Different forming modes such as wrinkling and fracture are discussed by using experimental and numerical studies. Hydroforming is used for multilayer forming. The Barlat 2000 yield criteria and DYNAFORM/LS-DYNA are used for the simulations. Optimal process parameters are determined on the basis of fixed die-binder gap and variable cavity pressure. The results of this study will enhance the knowledge on the mechanics of multilayer structures formed by using the 3A method and expand its commercial applications.
关键词: finite element method (FEM) strain analysis multilayer sheet forming
Alireza ARABHA NAJAFABADI, Farhad DANESHJOO, Hamid Reza AHMADI
《结构与土木工程前沿(英文)》 2020年 第14卷 第3期 页码 722-730 doi: 10.1007/s11709-020-0624-5
关键词: damage detection strain energy influence line complex bridges rotation displacement
Remi CHANDRAN, Tsuyoshi FUJITA, Minoru FUJII, Shuichi ASHINA, Kei GOMI, Rizaldi BOER, Muhammad ARDIANSYAH, Seiya MAKI
《能源前沿(英文)》 2018年 第12卷 第3期 页码 376-388 doi: 10.1007/s11708-018-0559-x
The Paris Agreement, which entered into effect in 2016, emphasizes a definite timeline for communicating and maintaining successive nationally determined contributions (NDCs) that it plans to achieve in addressing climate change. This calls for the development of a measurement, reporting and verification (MRV) system and a Capacity-building Initiative for Transparency (CBIT). Though such actions are universally accepted by the Parties to the Paris Agreement, earlier studies have shown that there remain technological, social, political and financial constrains which will affect the development and deployment of such a system. In this paper, using a case study on MRV implementation in Bogor City in Indonesia, how the above-mentioned challenges can be overcome is outlined through a technological and policy innovation process where scientists and technologists (collectively referred as expert networks) can join hands with local governments and national policy makers in designing, development and implementation of an MRV system that meets the local, national and global requirements. Through the case study it is further observed that expert networks can act as interactive knowledge generators and policy interlocutors in bridging technology with policy. To be specific, first, a brief history of the international context of MRV and CBIT is outlined. Next, the theoretical underpinning of the study is contextualized within the existing theories related to public policy and international relations. Finally, the case study is outlined and investigated where the engagement of an expert-network and policy makers in the design, development and implementation of an MRV tool is showcased.
关键词: MRV CBIT UNFCCC Indonesia Japan ICT based monitoring climate policy
基于随机森林模型的滑动轨迹人机识别 Research Articles
Zhen-yi XU, Yu KANG, Yang CAO, Yu-xiao YANG
《信息与电子工程前沿(英文)》 2019年 第20卷 第7期 页码 925-929 doi: 10.1631/FITEE.1700442
一种基于描述逻辑的体系质量需求建模与验证方法 Article
Qing-long WANG,Zhi-xue WANG,Ting-ting ZHANG,Wei-xing ZHU
《信息与电子工程前沿(英文)》 2017年 第18卷 第3期 页码 346-361 doi: 10.1631/FITEE.1500309
关键词: 体系;云模型;描述逻辑;需求验证
Adaptive selective ES-FEM limit analysis of cracked plane-strain structures
H. NGUYEN-XUAN,T. RABCZUK
《结构与土木工程前沿(英文)》 2015年 第9卷 第4期 页码 478-490 doi: 10.1007/s11709-015-0317-7
关键词: cracked structure limit analysis von Mises criterion edge-based strain smoothing second-order cone programming adaptive
李燕萍,丁辉,唐振民
《中国工程科学》 2010年 第12卷 第2期 页码 95-100
从两个方面对确认系统进行了改进,在模型方面,扩展了MixMax模型,对复杂的背景噪声等干扰因素在训练说话人模型的同时也进行了建模,最大程度上消除噪声的影响,对说话人的特征分布进行了更真实的表征;在得分方面,提出了一种改进的得分规整策略,基于EMD距离从所有背景说话人集合中自适应选择最接近的一定数量的模型构成说话人特定的背景集合,从而进行得分归一化。实验结果表明,该方法能够同时针对说话人和测试环境的不同进行补偿,进一步降低了误识率和漏警率,获得了很好的确认性能。
Semantic Consistency and Correctness Verification of Digital Traffic Rules
Lei Wan,Changjun Wang,Daxin Luo,Hang Liu,Sha Ma,Weichao Hu,
《工程(英文)》 doi: 10.1016/j.eng.2023.04.016
关键词: Autonomous driving Traffic rules Digitization Formalization Verification
Availability growth models and verification of power equipment
Jinyuan SHI, Jiamin XU
《能源前沿(英文)》 2021年 第15卷 第2期 页码 529-538 doi: 10.1007/s11708-019-0624-0
关键词: repairable system power equipment electric generating unit power station auxiliary transmission and distribution installation reliability availability availability growth model
Modelling and experimental verification on concrete-filled steel tubular columns with L or T section
LU Xilin, LI Xueping, WANG Dan
《结构与土木工程前沿(英文)》 2007年 第1卷 第2期 页码 163-169 doi: 10.1007/s11709-007-0017-z
关键词: hysteretic confining mechanism Concrete-filled in-filled composite
Cunwen WANG, Xiaoling DUAN, Weiguo WANG, Zihao LI, Yuanhang QIN
《能源前沿(英文)》 2012年 第6卷 第4期 页码 413-419 doi: 10.1007/s11708-012-0212-z
关键词: lignocellulose dilute acid hydrolysis shrinking core model
标题 作者 时间 类型 操作
Concepts and implementation of strain-based criteria in design codes for steel structures
Reidar BJORHOVDE
期刊论文
Parametric study on damage control design of SMA dampers in frame-typed steel piers
Xiaoqun LUO, Hanbin GE, Tsutomu USAMI,
期刊论文
FEM-based strain analysis study for multilayer sheet forming process
Rongjing ZHANG,Lihui LANG,Rizwan ZAFAR
期刊论文
Multiple damage detection in complex bridges based on strain energy extracted from single point measurement
Alireza ARABHA NAJAFABADI, Farhad DANESHJOO, Hamid Reza AHMADI
期刊论文
Expert networks as science-policy interlocutors in the implementation of a monitoring reporting and verification
Remi CHANDRAN, Tsuyoshi FUJITA, Minoru FUJII, Shuichi ASHINA, Kei GOMI, Rizaldi BOER, Muhammad ARDIANSYAH, Seiya MAKI
期刊论文
Adaptive selective ES-FEM limit analysis of cracked plane-strain structures
H. NGUYEN-XUAN,T. RABCZUK
期刊论文
Semantic Consistency and Correctness Verification of Digital Traffic Rules
Lei Wan,Changjun Wang,Daxin Luo,Hang Liu,Sha Ma,Weichao Hu,
期刊论文
Modelling and experimental verification on concrete-filled steel tubular columns with L or T section
LU Xilin, LI Xueping, WANG Dan
期刊论文