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Design and locomotion analysis of two kinds of rolling expandable mobile linkages with a single degree

Yanlin HAO, Yaobin TIAN, Jianxu WU, Yezhuo LI, Yan-An YAO

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 3, Pages 365-373 doi: 10.1007/s11465-020-0585-3

Abstract: Dynamic rolling process is further analyzed on the basis of zero moment point method, and a morphing

Keywords： rolling locomotion expandable mechanism mechanism design zero moment point (ZMP) analysis

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The zero-point energy of vibration and the Casimir force

Huang Zhixun

Strategic Study of CAE 2008, Volume 10, Issue 5, Pages 63-69

Abstract: The explanation for the Casimir effect is that empty space is cracking with zero-point energy(ZPE), a

Keywords： zero-point energy zero-point field energy of vacuum Casimir force theory of torsion field

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Seismic performance of moment resisting steel frame subjected to earthquake excitations

Fadzli M. NAZRI, Pang Yew KEN

Frontiers of Structural and Civil Engineering 2014, Volume 8, Issue 1, Pages 19-25 doi: 10.1007/s11709-014-0240-3

Abstract: Pushover analysis (POA) and incremental dynamic analysis (IDA) were run on moment resisting steel framesSteel frames are subjected to nonlinear inelastic time history analysis for 14 different scaled ground

Keywords： incremental dynamic analysis (IDA) pushover analysis performance-based seismic design

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Liquid metal as energy transportation medium or coolant under harsh environment with temperature below zero

Yunxia GAO, Lei WANG, Haiyan LI, Jing LIU

Frontiers in Energy 2014, Volume 8, Issue 1, Pages 49-61 doi: 10.1007/s11708-013-0285-3

Abstract: of RTLM, a comprehensive evaluation was proposed on the concept of liquid metal with a low melting pointbelow zero centigrade, such as mercury, alkali metal and more additional alloy candidates.in modern advanced energy and power industries, liquid metals with a low melting temperature below zero

Keywords： liquid metal cryogenics low melting point thermal management aircraft liquid cooling space exploration

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Instantaneous deflection of light-weight concrete slabs

Behnam VAKHSHOURI, Shami NEJADI

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 4, Pages 412-423 doi: 10.1007/s11709-017-0416-8

Abstract: Effects of aggregate type, loading levels and cracking moment together with the influences of ultimatemoment capacity and service moment on the instantaneous deflection of slabs are studied.Based on sensitivity analysis of the effective parameters, a new equation is proposed and verified to

Keywords： instantaneous deflection light-weight concrete expanded polystyrene effective moment of inertia crackingmoment moment capacity service moment

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Energy and economic analysis of a point-focus concentrating photovoltaic system when its installation

C. RENNO, A. PERONE

Frontiers in Energy 2021, Volume 15, Issue 2, Pages 384-395 doi: 10.1007/s11708-020-0717-9

Abstract: The main aim of this paper is to analyze energy and economic performances of a point-focus CPV system

Keywords： CPV system point-focus experimental model energy and economic analysis

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Higher Moment Method in Reliability Analysis of Engineering Structure

Gong Fengqiang,Li Xibing,Deng Jian

Strategic Study of CAE 2006, Volume 8, Issue 5, Pages 69-73

Abstract:

A higher moment method with the basis of Chebyshev polynomial { T_k(x)} is presented, whichis used in the reliability analysis of engineering structures.

Keywords： structure reliability higher moment Chebyshev polynomial failure probability

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Estimating moment capacity of ferrocement members using self-evolving network

Abdussamad ISMAIL

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 4, Pages 926-936 doi: 10.1007/s11709-019-0527-5

Abstract: The model is meant to serve as a simple but reliable tool for estimating the moment capacity of ferrocementThe data consists of information regarding flexural tests on ferrocement specimens which include momentproposed models with experimental data indicated that the models are capable of accurately estimating the momentThe proposed models also make better predictions compared to methods such as the plastic analysis method

Keywords： ferrocement moment capacity self-evolving neural network

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Shaking-moment balancing of mechanisms with principal vectors and momentum

V. van der WIJK

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 1, Pages 10-16 doi: 10.1007/s11465-013-0359-2

Abstract:

The design of shaking-moment-balanced linkages still is challenging.Considering moment balance in the very beginning of the design process of mechanisms is important forThe moment balance conditions are derived for three elements in series from which balance solutions areFrom the application for moment balancing of a 4R four-bar linkage it is shown that the moment balancing

Keywords： shaking-moment balancing principal vector linkage angular momentum

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Initial stiffness and moment resistance of reinforced joint with end-plate connection

Sufang WANG, Yiyi CHEN,

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 4, Pages 345-351 doi: 10.1007/s11709-009-0054-x

Abstract: Especially, the initial stiffness of reinforced components is drawn by theoretical model and finite element analysisThe design moment resistance of column flange reinforced by backing plate is deduced based on yield linemethod, and the design moment resistances of other components are deduced based on present codes.The design moment resistance of the reinforced joint is then determined by the minimum of the designmoment resistances of all components.

Keywords： steel structure end-plate connection backing plate supplementary web plate initial stiffness moment resistance

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Research on Water Velocity in Filling up Section of Horizontal Pipe

Wang Dongmei,Zhang Shilin

Strategic Study of CAE 2005, Volume 7, Issue 2, Pages 66-68

Abstract:

The article divides the whole section into two sections. One is arcuate section. The other is seepage section. Water velocity distribution in circular section of pipe has been studied for a long time, and advanced theories were achieved. Based on fore theory and some tentatives, theory about distribution of water velocity in pipe of arcuate section is researched. Research of seepage section is based on seeping theory. Many experiments proved that the theory and program of this article are correct.

Keywords： arcuate section filling up bed water velocity zero shear point water-power gradient

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Isogeometric analysis based on geometric reconstruction models

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 4, Pages 782-797 doi: 10.1007/s11465-021-0648-0

Abstract: In isogeometric analysis (IGA), the boundary representation of computer-aided design (CAD) and the tensor-productnon-uniform rational B-spline structure make the analysis of three-dimensional (3D) problems with irregularIn this paper, an IGA method for complex models is presented by reconstructing analysis-suitable modelsThe CAD model is represented by boundary polygons or point cloud and is embedded into a regular backgroundthat the proposed method can deal with complex engineering parts reconstructed by boundary polygons or point

Keywords： isogeometric analysis reconstruction model level set function trimmed element point cloud

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Remediation of arsenic contaminated soil by sulfidated zero-valent iron

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 5, doi: 10.1007/s11783-020-1377-z

Abstract:

• Sulfidation significantly enhanced As(V) immobilization in soil by zerovalent iron.

Keywords： Soil As(V) Sulfidation Zero-valent iron Magnetic separation

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Rare-earth separation based on the differences of ionic magnetic moment via quasi-liquid strategy

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10, Pages 1584-1594 doi: 10.1007/s11705-022-2189-4

Abstract: The differences of the ionic magnetic moment among rare earths are greater than that of ionic radius.Herein, a novel method based on the large ionic magnetic moment differences of rare earth elements wasliquid, then the ordering degree of them was improved with the Z-bond effect, and finally the magnetic moment

Keywords： rare earth element different magnetic moment magnetic separation ionic liquid

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Improved prediction of pile bending moment and deflection due to adjacent braced excavation

Frontiers of Structural and Civil Engineering doi: 10.1007/s11709-023-0961-2

Abstract: This study develops equations to predict the existing pile bending moment and deflection produced byIt is practically unfeasible to obtain measurement data; hence, artificial data for the bending momentThe developed equations were established through a multiple linear regression analysis of the artificialThe estimation results of the developed equations can provide satisfactory pile bending moment and deflection

Keywords： pile responses excavation prediction deflection bending moments