Resource Type

Journal Article 57

Conference Videos 1

Year

2023 2

2022 8

2021 2

2020 5

2019 4

2018 9

2017 2

2016 4

2015 2

2014 3

2013 2

2012 3

2010 1

2009 4

2007 1

2002 1

2001 3

2000 1

open ︾

Keywords

singularity 5

Geophysics 2

kinematics 2

2-DOF orthogonal spherical parallel mechanism 1

3-RPS-manipulator 1

Air pollutants 1

Air-cooling structures 1

Bioremediation 1

CCB 1

Carbon Border Adjustment Mechanism 1

Carbon accounting 1

Carbon monitoring 1

Carbon neutrality 1

Centro-symmetric cross array 1

China 1

Clean coal-fired power 1

Dam safety 1

Design optimization 1

Electromagnetic induction 1

open ︾

Search scope:

排序： Display mode:

Implementation of sinh method in integration space for boundary integrals with near singularity in potential

Guizhong XIE,Dehai ZHANG,Jianming ZHANG,Fannian MENG,Wenliao DU,Xiaoyu WEN

Frontiers of Mechanical Engineering 2016, Volume 11, Issue 4,   Pages 412-422 doi: 10.1007/s11465-016-0396-8

Abstract: However, boundary integrals with near singularity need to be calculated accurately and efficiently toequation if the location of the projection point is outside the element, where boundary integrals with nearsingularity appear.Results demonstrate that our method is effective for regularizing the boundary integrals with near singularity

Keywords： computer aided engineering (CAE)     boundary element method (BEM)     near singularity     sinh method     coordinate    

HTML PDF Collect

Singularity loci of an orthogonal spherical two-degree-of-freedom parallel mechanism

Jialun YANG, Feng GAO,

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 4,   Pages 379-385 doi: 10.1007/s11465-009-0075-0

Abstract: Singularity analysis plays an important role in the design of robots, especially for parallel robots.Singularity loci in the joint space and Cartesian space are plotted according to the Jacobin of the mechanismResult shows that the singularity loci at the joint space are two circles and one line, whereas at the

Keywords： 2-DOF orthogonal spherical parallel mechanism     singularity loci     self-motions    

HTML PDF Collect

Influence of kinematic redundancy on the singularity-free workspace of parallel kinematic machines

Jens KOTLARSKI, Bodo HEIMANN, Tobias ORTMAIER

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 2,   Pages 120-134 doi: 10.1007/s11465-012-0321-8

Abstract:

In this paper the effect of kinematic redundancy in order to reduce the singularity loci of the directkinematics and to increase the operational, i.e., singularity-free, workspace is demonstrated.

Keywords： parallel robots     kinematic redundancy     singularity avoidance     operational workspace    

HTML PDF Collect

Study on the Path of “Near-zero Emission” Coal-based Clean Energy Ecosystem Development

Zhang Yu-zhuo

Frontiers of Engineering Management 2014, Volume 1, Issue 1,   Pages 37-41 doi: 10.15302/J-FEM-2014007

Abstract: Developing a "near-zero emission" coal-based clean energy ecosystem bears great significance for thearticle delves into the development strategy, implementation pathways and key priorities of China's "near-zero

Keywords： near-zero emission     clean energy ecosystem     study on the path    

HTML PDF Collect

Research and industrialization of near-net rolling technology used in shaft parts

Zhenghuan HU, Baoyu WANG, Zhenhua ZHENG

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 1,   Pages 17-24 doi: 10.1007/s11465-018-0480-3

Abstract:

Shaft part rolling is an efficient and green near-net shaping technology offering many advantages,

Keywords： cross wedge rolling     skew rolling     near-net rolling     shaft part    

HTML PDF Collect

Special issue: Near-net shaping technology

Dequn LI, Dongming GUO, Qingxue HUANG, Yanchun LOU

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 1,   Pages 1-2 doi: 10.1007/s11465-018-0497-7

HTML PDF Collect

Determining casting defects in near-net shape casting aluminum parts by computed tomography

Jiehua LI, Bernd OBERDORFER, Daniel HABE, Peter SCHUMACHER

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 1,   Pages 48-52 doi: 10.1007/s11465-018-0493-y

Abstract:

Three types of near-net shape casting aluminum parts were investigated by computed tomography to determinethird part, and this absence of defects indicates that semi-solid casting could produce high-quality near-netinvestigation demonstrated that computed tomography is an efficient method to determine casting defects in near-net

Keywords： near-net shape casting     aluminum parts     casting defects     low pressure die casting     die casting     semi-solid    

HTML PDF Collect

Chemisorption solid materials for hydrogen storage near ambient temperature: a review

Yiheng ZHANG, Shaofei WU, Liwei WANG, Xuefeng ZHANG

Frontiers in Energy 2023, Volume 17, Issue 1,   Pages 72-101 doi: 10.1007/s11708-022-0835-7

Abstract: chemisorption technologies for hydrogen storage, especially high-efficiency hydrogen storage of fuel cells in nearHowever, there are several challenges to be solved at near ambient temperature, i.e., unclear hydrogenreview, the characteristics and modification methods of chemisorption hydrogen storage materials at near

Keywords： hydrogen storage capacity     chemisorption     near-ambient-temperature     modification methods     alloy hydrides    

HTML PDF Collect

Factors influencing near infrared spectroscopy analysis of agro-products: a review

Xiao XU, Lijuan XIE, Yibin YING

Frontiers of Agricultural Science and Engineering 2019, Volume 6, Issue 2,   Pages 105-115 doi: 10.15302/J-FASE-2019255

Abstract:

The near infrared (NIR) spectroscopy technique has wide applications in agriculture with the advantages

Keywords： agro-product     error source     influence factor     near infrared spectroscopy    

HTML PDF Collect

The nonlinear singularity phenomenon of low frequency oscillation in power system

Ma Jinglan,Wang Wei,Wan Jingsheng,Zhang Yongli

Strategic Study of CAE 2009, Volume 11, Issue 8,   Pages 93-96

Abstract: reason that causes LFO is discussed.With Hopf bifurcation theory, it is analyzed that the nonlinear singularityThe study indicates that because of the Hopf bifurcation, singularity phenomenon in the power system

Keywords： LFO     bifurcation theory     nonlinear     singularity    

HTML PDF Collect

Modeling of oil near-infrared spectroscopy based on similarity and transfer learning algorithm

Yifei Wang, Kai Wang, Zhao Zhou, Wenli Du

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 3,   Pages 599-607 doi: 10.1007/s11705-019-1807-2

Abstract: Near-infrared spectroscopy mainly reflects the frequency-doubled and total-frequency absorption informationof hydrogen-containing groups (O‒H, C‒H, N‒H, S‒H) in organic molecules for near-infrared lights withIn order to achieve rapid modeling of near-infrared spectroscopy and based on historical data of different

Keywords： near-infrared spectroscopy     transfer learning     similarity     modeling    

HTML PDF Collect

Kinematic, workspace and singularity analysis of a new parallel robot used in minimally invasive surgery

Alin STOICA, Doina PISLA, Szilaghyi ANDRAS, Bogdan GHERMAN, Bela-Zoltan GYURKA, Nicolae PLITEA

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 1,   Pages 70-79 doi: 10.1007/s11465-013-0365-4

Abstract: An in-depth study of different types of singularity is performed, allowing the development of safe control

Keywords： parallel robot     minimally invasive surgery     kinematics     simulation    

HTML PDF Collect

Singularity and workspace analysis of three isoconstrained parallel manipulators with schoenflies motion

Po-Chih LEE, Jyh-Jone LEE

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 2,   Pages 163-187 doi: 10.1007/s11465-012-0324-5

Abstract: Then, Jacobian matrix, singularity, workspace, and performance index for each mechanism are subsequently

Keywords： parallel manipulator     schoenflies motion     kinematics     singularity     workspace     performance index    

HTML PDF Collect

Stress field near circular-arc interface crack tip based on electric saturation concept

Longchao DAI, Xinwei WANG

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 3,   Pages 320-325 doi: 10.1007/s11465-009-0042-9

Abstract: Within the framework of nonlinear electroelasticity, the anti-plane problem of a circular-arc interfacial crack between a circular piezoelectric inhomogeneity and an infinite piezoelectric matrix subjected to a far-field uniform loading is investigated by an electrical strip saturation model, the complex variable method, and the method of analytical continuation. Explicit closed form expressions for the complex potentials in both the matrix and the inclusion, and the stress intensity factor at the crack tip are presented. Comparison with some related solutions based on the linear electroelastic theory shows the validity of the present solutions

Keywords： piezoelectric material     arc crack     strip saturation     stress intensity factor    

HTML PDF Collect

Finite element analysis of stress concentrations and failure criteria in composite plates with circular holes

Abdelhak KHECHAI,Abdelouahab TATI,Abdelhamid GUETTALA

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 3,   Pages 281-294 doi: 10.1007/s11465-014-0307-9

Abstract:

In this study, the stress concentration factors (SCF) in cross-and-angle-ply laminated composite plates as well as in isotropic plates with single circular holes subjected to uniaxial loading is studied. A quadrilateral finite element of four-node with 32 degrees of freedom at each node, previously developed for the bending and mechanical buckling of laminated composite plates, is used to evaluate the stress distribution in laminated composite plates with central circular holes. Based up on the classical plate theory, the present finite element is a combination of a linear isoparametric membrane element and a high precision rectangular Hermitian element. The numerical results obtained by the present element compare favorably with those obtained by the analytic approaches published in literature. It is observed that the obtained results are very close to the reference results, which demonstrates the accuracy of the present element. Additionally, to determine the first ply failure (FPF) of laminated plate, several failure criterions are employed. Finally, to show the effect of ratio on the failure of plates, a number of figures are given for different fiber orientation angles.

Keywords： laminated composite plates     stress concentration     geometric singularity     anisotropic effect    

HTML PDF Collect

Title Author Date Type Operation

Implementation of sinh method in integration space for boundary integrals with near singularity in potential

Guizhong XIE,Dehai ZHANG,Jianming ZHANG,Fannian MENG,Wenliao DU,Xiaoyu WEN

Journal Article

Singularity loci of an orthogonal spherical two-degree-of-freedom parallel mechanism

Jialun YANG, Feng GAO,

Journal Article

Influence of kinematic redundancy on the singularity-free workspace of parallel kinematic machines

Jens KOTLARSKI, Bodo HEIMANN, Tobias ORTMAIER

Journal Article

Study on the Path of “Near-zero Emission” Coal-based Clean Energy Ecosystem Development

Zhang Yu-zhuo

Journal Article

Research and industrialization of near-net rolling technology used in shaft parts

Zhenghuan HU, Baoyu WANG, Zhenhua ZHENG

Journal Article

Special issue: Near-net shaping technology

Dequn LI, Dongming GUO, Qingxue HUANG, Yanchun LOU

Journal Article

Determining casting defects in near-net shape casting aluminum parts by computed tomography

Jiehua LI, Bernd OBERDORFER, Daniel HABE, Peter SCHUMACHER

Journal Article

Chemisorption solid materials for hydrogen storage near ambient temperature: a review

Yiheng ZHANG, Shaofei WU, Liwei WANG, Xuefeng ZHANG

Journal Article

Factors influencing near infrared spectroscopy analysis of agro-products: a review

Xiao XU, Lijuan XIE, Yibin YING

Journal Article

The nonlinear singularity phenomenon of low frequency oscillation in power system

Ma Jinglan,Wang Wei,Wan Jingsheng,Zhang Yongli

Journal Article

Modeling of oil near-infrared spectroscopy based on similarity and transfer learning algorithm

Yifei Wang, Kai Wang, Zhao Zhou, Wenli Du

Journal Article

Kinematic, workspace and singularity analysis of a new parallel robot used in minimally invasive surgery

Alin STOICA, Doina PISLA, Szilaghyi ANDRAS, Bogdan GHERMAN, Bela-Zoltan GYURKA, Nicolae PLITEA

Journal Article

Singularity and workspace analysis of three isoconstrained parallel manipulators with schoenflies motion

Po-Chih LEE, Jyh-Jone LEE

Journal Article

Stress field near circular-arc interface crack tip based on electric saturation concept

Longchao DAI, Xinwei WANG

Journal Article

Finite element analysis of stress concentrations and failure criteria in composite plates with circular holes

Abdelhak KHECHAI,Abdelouahab TATI,Abdelhamid GUETTALA

Journal Article