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Shape optimization of aluminium alloy spherical reticulated shells considering nonlinearities
Wei LIU; Lishu XU; Shaojun ZHU; Lijuan LI; Feng LIU; Zhe XIONG
《结构与土木工程前沿(英文)》 2022年 第16卷 第12期 页码 1565-1580 doi: 10.1007/s11709-022-0867-4
关键词: shape optimization aluminum alloy spherical reticulated shell non-linear buckling material nonlinearity genetic algorithm
Nanopositioning and Nonlinearity Compensation for Step Imprint Lithography Tool
LU Bing-heng, LIU Hong-zhong, DING Yu-cheng, WANG Li, QIU Zhi-hui
《机械工程前沿(英文)》 2006年 第1卷 第1期 页码 6-13 doi: 10.1007/s11465-005-0003-x
In this paper, the motion mode and nanopositioning accuracy in the step imprinting lithography process are presented, and the positioning errors different from the traditional errors, such as the gap error existing in the hinges of the stage structure and the random error produced during the process of the stage position adjustment, are analyzed. To avoid and eliminate these nonlinearity errors, radial basis function proportional integral derivative and position control algorithms are introduced into the macroand microdriving processes, respectively. The innovation of this driving method is that the motion locus is monotone, nonoscillatory, and a multistep approaching target, which eliminates the root of the random error by single direction driving mode and avoids the backlash error through preloading function. Driving experiments of different motion ranges prove that this nonlinearity compensation is very effective and the positioning accuracy during the step imprinting process can be improved up to 10 nm.
关键词: different nonoscillatory nonlinearity integral derivative positioning
Contribution of black carbon to nonlinearity of sorption and desorption of acetochlor on sediment
Jianqiu LIU, Yaobin ZHANG, Hong CHEN, Yazhi ZHAO, Xie QUAN
《环境科学与工程前沿(英文)》 2009年 第3卷 第1期 页码 69-74 doi: 10.1007/s11783-008-0076-y
Finite element analysis of creep for plane steel frames in fire
Hui ZHU, Yuching WU
《结构与土木工程前沿(英文)》 2012年 第6卷 第3期 页码 297-307 doi: 10.1007/s11709-012-0162-x
关键词: creep plane steel frame fire finite element method geometric nonlinearity
Lei WANG, Jing LIU
《能源前沿(英文)》 2013年 第7卷 第3期 页码 317-332 doi: 10.1007/s11708-013-0271-9
关键词: liquid metal material genome energy material material discovery advanced material room-temperature liquid alloy thermodynamics phase diagram
Yu-Chin CHAN, Kohei SHINTANI, Wei CHEN
《机械工程前沿(英文)》 2019年 第14卷 第2期 页码 141-152 doi: 10.1007/s11465-019-0531-4
关键词: robust topology optimization lattice structures multi-material material uncertainty load uncertainty univariate dimension reduction
Optimal dome design considering member-related design constraints
Tugrul TALASLIOGLU
《结构与土木工程前沿(英文)》 2019年 第13卷 第5期 页码 1150-1170 doi: 10.1007/s11709-019-0543-5
关键词: dome structure geometric nonlinearity multi-objective optimization API RP2A-LRFD
于翘
《中国工程科学》 1999年 第1卷 第3期 页码 1-4
在不少场合下,航天用工程材料处在极端条件下工作,这就对材料提出许多特殊的要求,虽然国内外有一定的研究积累,但对更精确的模型和符合特定材料的损伤的状态方程,有待深一步研究。如高级弹头再入时气动加热和粒子云侵蚀以及两者耦合效应引起弹头防护材料增大后退量的问题;空中垃圾和微流星的高速碰撞对航天器的威胁;特别是核爆和激光武器对材料的损伤和破坏,实质上是辐射引起的热击波层裂破坏,这些都属于超高速碰撞对材料的响应问题。天线罩材料、吸波材料、红外隐身材料、电磁屏蔽材料都是具有不同波长电磁波的电磁功能材料,它们对固体介质的穿透、吸收、反射等会产生响应,不同的电磁功能材料,其宏观性能的物理参量不同,但有几个参量是通用的,如介电常数、磁导率和损耗角正切,搞清这些参量与材料微观结构的关系,可以为材料设计和材料创新提供科学依据。
Bing XIA, Yuching WU, Zhanfei HUANG
《结构与土木工程前沿(英文)》 2012年 第6卷 第3期 页码 257-266 doi: 10.1007/s11709-012-0163-9
关键词: co-rotational total Lagrangian geometrical nonlinearity fire elasto-plastic
A novel approach to minimizing material loss for computer numerical control flank-regrinding of worn
《机械工程前沿(英文)》 2023年 第18卷 第3期 doi: 10.1007/s11465-023-0757-z
关键词: flank-regrinding worn end mill wheel position and orientation material loss over-cut
A MATLAB code for the material-field series-expansion topology optimization method
《机械工程前沿(英文)》 2021年 第16卷 第3期 页码 607-622 doi: 10.1007/s11465-021-0637-3
关键词: MATLAB implementation topology optimization material-field series-expansion method bounded material field dimensionality reduction
Experimental and numerical study on microcrack detection using contact nonlinear acoustics
Xiaojia CHEN, Yuanlin WANG
《结构与土木工程前沿(英文)》 2009年 第3卷 第2期 页码 137-141 doi: 10.1007/s11709-009-0028-z
关键词: microcrack detection contact nonlinearity numerical analysis
A multiscale material model for heterogeneous liquid droplets in solid soft composites
《结构与土木工程前沿(英文)》 2021年 第15卷 第5期 页码 1292-1299 doi: 10.1007/s11709-021-0771-3
关键词: liquid in solid soft composite computational modeling multiscale model heterogeneity
A brief review on nonlinear modeling methods and applications of compliant mechanisms
Guangbo HAO,Jingjun YU,Haiyang LI
《机械工程前沿(英文)》 2016年 第11卷 第2期 页码 119-128 doi: 10.1007/s11465-016-0387-9
Compliant mechanisms (CMs) have become one of the most popular research themes in mechanisms and robotics because of their merits. This paper aims to provide a brief systematic review on the advances of nonlinear static modeling approaches and the applications of CMs to promote interdisciplinary/multidisciplinary development for associated theories and other new applications. It also predicts likely future directions of applications and theory development.
关键词: compliant mechanisms modelling nonlinearity applications review
Influence of soft rock-fill material as dam embankment with central bituminous concrete membrane
Peter TSCHERNUTTER
《结构与土木工程前沿(英文)》 2011年 第5卷 第1期 页码 63-70 doi: 10.1007/s11709-010-0016-3
关键词: embankment dam bituminous concrete membrane rock-fill material properties deformation behavior
标题 作者 时间 类型 操作
Shape optimization of aluminium alloy spherical reticulated shells considering nonlinearities
Wei LIU; Lishu XU; Shaojun ZHU; Lijuan LI; Feng LIU; Zhe XIONG
期刊论文
Nanopositioning and Nonlinearity Compensation for Step Imprint Lithography Tool
LU Bing-heng, LIU Hong-zhong, DING Yu-cheng, WANG Li, QIU Zhi-hui
期刊论文
Contribution of black carbon to nonlinearity of sorption and desorption of acetochlor on sediment
Jianqiu LIU, Yaobin ZHANG, Hong CHEN, Yazhi ZHAO, Xie QUAN
期刊论文
Liquid metal material genome: Initiation of a new research track towards discovery of advanced energy
Lei WANG, Jing LIU
期刊论文
Robust topology optimization of multi-material lattice structures under material and load uncertainties
Yu-Chin CHAN, Kohei SHINTANI, Wei CHEN
期刊论文
Implementation of total Lagrangian formulation for the elasto-plastic analysis of plane steel frames exposed to fire
Bing XIA, Yuching WU, Zhanfei HUANG
期刊论文
A novel approach to minimizing material loss for computer numerical control flank-regrinding of worn
期刊论文
Experimental and numerical study on microcrack detection using contact nonlinear acoustics
Xiaojia CHEN, Yuanlin WANG
期刊论文
A brief review on nonlinear modeling methods and applications of compliant mechanisms
Guangbo HAO,Jingjun YU,Haiyang LI
期刊论文