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A super-element approach for structural identification in time domain

LI Jie, ZHAO Xin

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 2,   Pages 215-221 doi: 10.1007/s11465-006-0004-4

Abstract: A super-element approach is proposed in this study to identify the structural parameters of a large-scaleThe most interesting feature of the proposed super-element approach is its divide-and-conquer abilityThe super-element model used for time domain identification is first discussed in this study.on the sensitivities of response forces is introduced to establish the identification equations of super-elementsSome principles are suggested on effective decomposing of the whole structure into super-elements for

Keywords： numerical     effective decomposing     parameterization procedure     divide-and-conquer ability     time-domain identification    

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Topology optimization based on reduction methods with applications to multiscale design and additive manufacturing

Emmanuel TROMME, Atsushi KAWAMOTO, James K. GUEST

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 1,   Pages 151-165 doi: 10.1007/s11465-019-0564-8

Abstract: Advanced manufacturing processes such as additive manufacturing offer now the capability to control material placement at unprecedented length scales and thereby dramatically open up the design space. This includes the considerations of new component topologies as well as the architecture of material within a topology offering new paths to creating lighter and more efficient structures. Topology optimization is an ideal tool for navigating this multiscale design problem and leveraging the capabilities of advanced manufacturing technologies. However, the resulting design problem is computationally challenging as very fine discretizations are needed to capture all micro-structural details. In this paper, a method based on reduction techniques is proposed to perform efficiently topology optimization at multiple scales. This method solves the design problem without length scale separation, i.e., without iterating between the two scales. Ergo, connectivity between space-varying micro-structures is naturally ensured. Several design problems for various types of micro-structural periodicity are performed to illustrate the method, including applications to infill patterns in additive manufacturing.

Keywords： optimization     micro-structure     additive manufacturing     reduction techniques     substructuring     static condensation     super-element    

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Structure improvement and strength finite element analysis of VHP welded rotor of 700°C USC steam turbine

Jinyuan SHI,Zhicheng DENG,Yong WANG,Yu YANG

Frontiers in Energy 2016, Volume 10, Issue 1,   Pages 88-104 doi: 10.1007/s11708-015-0387-1

Abstract: The optimized structure strength design and finite element analysis method for very high pressure (VHP) rotors of the 700°C ultra-super-critical (USC) steam turbine are presented.The steady and transient finite element analysis are implemented for steady condition, start and shutdown

Keywords： 700°C ultra-super-critical unit     steam turbine     very high pressure rotor     structure strength design     strengthdesign criteria     finite element analysis    

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Aerodynamic stability evolution tendency of suspension bridges with spans from 1000 to 5000 m

Frontiers of Structural and Civil Engineering doi: 10.1007/s11709-023-0980-z

Abstract: Finite element models of suspension bridges with increasing span from 1000 to 5000 m were constructedflutter, and more aerodynamic configuration optimistic optimizations for flutter are essential for super

Keywords： suspension bridge     super long-span     finite element model     aerodynamic instability     aerodynamic configuration    

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Breeding strategies for increasing yield potential in super hybrid rice

Shihua CHENG,Xiaodeng ZHAN,Liyong CAO

Frontiers of Agricultural Science and Engineering 2015, Volume 2, Issue 4,   Pages 277-282 doi: 10.15302/J-FASE-2015081

Abstract: Super hybrid rice breeding is a new breeding method combining semi-dwarf breeding and heterosis breedingThis paper reviews the breeding strategies of super hybrid rice breeding in China, focusing on the utilizationTo develop super hybrid rice, considerable effort should be made to explore genes related with high yieldMolecular breeding methods in combination with crossing techniques should be adopted in super hybrid

Keywords： super hybrid rice     breeding strategies     yield potential    

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Tool wear mechanisms in the machining of Nickel based super-alloys: A review

Waseem AKHTAR,Jianfei SUN,Pengfei SUN,Wuyi CHEN,Zawar SALEEM

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 2,   Pages 106-119 doi: 10.1007/s11465-014-0301-2

Abstract:

Nickel based super-alloys are widely employed in aircraft engines and gas turbines due to their highThis study provides a detailed review of the tool wear mechanism in the machining of nickel based super-alloys

Keywords： tool wear     nickel based super-alloy     wear mechanism    

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Sulige Gas Field super project

Wenrui HU, Jingwei BAO, Pengcheng JI

Frontiers of Engineering Management 2017, Volume 4, Issue 3,   Pages 379-384 doi: 10.15302/J-FEM-2017107

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Cross-stacked super-aligned carbon nanotube/activated carbon composite electrodes for efficient water

Min Li, Shuai Liang, Yang Wu, Meiyue Yang, Xia Huang

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 6, doi: 10.1007/s11783-020-1286-1

Abstract: Abstract • A high-performance electrode was prepared with super-aligned carbon nanotubes. • SACNT/ACThe current study demonstrated a novel super-aligned carbon nanotube (SACNT)/activated carbon (AC) composite

Keywords： Carbon nanotube     Super aligned     Conductive membrane     Capacitive deionization     Ultrafiltration     Desalination    

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Effective and selective separation of perrhenate from acidic wastewater by super-stable, superhydrophobic

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 2, doi: 10.1007/s11783-021-1456-9

Abstract:

• A ZnO-biochar hybrid composite was prepared by solvothermal-pyrolysis synthesis.

Keywords： Selectivity     Adsorption     Re(VII)     ZnO     Biochar    

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Nonpolar cross-stacked super-aligned carbon nanotube membrane for efficient wastewater treatment

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 3, doi: 10.1007/s11783-023-1630-3

Abstract:

● A novel nonpolar super-aligned carbon nanotube (SACNT) membrane

Keywords： Membrane fouling     Wastewater     Membrane separation     Antifouling     Aligned carbon nanotube    

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Significant enhancement in catalytic ozonationefficacy: From granular to super-fine powdered activated

Tianyi Chen, Wancong Gu, Gen Li, Qiuying Wang, Peng Liang, Xiaoyuan Zhang, Xia Huang

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 1, doi: 10.1007/s11783-018-1022-2

Abstract: In this study, super-fine powdered activated carbon (SPAC) hasbeen proposed and investigated as a novel

Keywords： Super-fine activated carbon     Catalytic ozonation     External surface area     Surface reaction     Hydroxyl radical    

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Structural design and mechanical responses of closely spaced super-span double tunnels in strongly weathered

Jiaxin HE; Shaohui HE; Xiabing LIU; Jinlei ZHENG

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 6,   Pages 685-703 doi: 10.1007/s11709-022-0824-2

Abstract: One is Xiabei Mountain No. 2 four-line super-span high-speed railway tunnel (HRT), and the other is Xiabei

Keywords： double tunnels     super-span     structural design     mechanical response     numerical simulation     field monitoring    

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Water dredging construction method of the super scale caisson

Xia Guoxing,Du Hongchi

Strategic Study of CAE 2010, Volume 12, Issue 4,   Pages 25-28

Abstract: This paper introduced the water dredging construction method of the super scale caisson based on the

Keywords： super scale caisson     water dredging construction    

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Ultra-precision ductile grinding of BK7 using super abrasive diamond wheel

ZHAO Qingliang, Brinksmeier Ekkard, Riemer Oltmann, Rickens Kai

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 3,   Pages 350-355 doi: 10.1007/s11465-007-0061-3

Abstract: Under optimised conditioning parameters, the super abrasive diamond wheel was well conditioned in termsductile grinding optical glass featuring nano scale surface roughness, indicating the potential of super

Keywords： ELID     peripheral     electrolytic in-process     nickel-electroplated monolayer     measurement    

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Seismic analysis of a super high-rise steel structure with horizontal strengthened storeys

Yuanqing WANG, Hui ZHOU, Yongjiu SHI, Yi HUANG, Gang SHI, Siqing WEN

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 3,   Pages 394-404 doi: 10.1007/s11709-011-0116-8

Abstract: Horizontal strengthened storeys are widely used in super high-rise steel structures to improve the lateralThe seismic properties of the Wuhan International Securities Building (a 68-storey super high-rise steelThis study provides references for the seismic design of super high-rise steel structures with horizontal

Keywords： seismic analysis     steel structure     super high-rise     horizontal strengthened storey     response spectrum analysis    

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Title Author Date Type Operation

A super-element approach for structural identification in time domain

LI Jie, ZHAO Xin

Journal Article

Topology optimization based on reduction methods with applications to multiscale design and additive manufacturing

Emmanuel TROMME, Atsushi KAWAMOTO, James K. GUEST

Journal Article

Structure improvement and strength finite element analysis of VHP welded rotor of 700°C USC steam turbine

Jinyuan SHI,Zhicheng DENG,Yong WANG,Yu YANG

Journal Article

Aerodynamic stability evolution tendency of suspension bridges with spans from 1000 to 5000 m

Journal Article

Breeding strategies for increasing yield potential in super hybrid rice

Shihua CHENG,Xiaodeng ZHAN,Liyong CAO

Journal Article

Tool wear mechanisms in the machining of Nickel based super-alloys: A review

Waseem AKHTAR,Jianfei SUN,Pengfei SUN,Wuyi CHEN,Zawar SALEEM

Journal Article

Sulige Gas Field super project

Wenrui HU, Jingwei BAO, Pengcheng JI

Journal Article

Cross-stacked super-aligned carbon nanotube/activated carbon composite electrodes for efficient water

Min Li, Shuai Liang, Yang Wu, Meiyue Yang, Xia Huang

Journal Article

Effective and selective separation of perrhenate from acidic wastewater by super-stable, superhydrophobic

Journal Article

Nonpolar cross-stacked super-aligned carbon nanotube membrane for efficient wastewater treatment

Journal Article

Significant enhancement in catalytic ozonationefficacy: From granular to super-fine powdered activated

Tianyi Chen, Wancong Gu, Gen Li, Qiuying Wang, Peng Liang, Xiaoyuan Zhang, Xia Huang

Journal Article

Structural design and mechanical responses of closely spaced super-span double tunnels in strongly weathered

Jiaxin HE; Shaohui HE; Xiabing LIU; Jinlei ZHENG

Journal Article

Water dredging construction method of the super scale caisson

Xia Guoxing,Du Hongchi

Journal Article

Ultra-precision ductile grinding of BK7 using super abrasive diamond wheel

ZHAO Qingliang, Brinksmeier Ekkard, Riemer Oltmann, Rickens Kai

Journal Article

Seismic analysis of a super high-rise steel structure with horizontal strengthened storeys

Yuanqing WANG, Hui ZHOU, Yongjiu SHI, Yi HUANG, Gang SHI, Siqing WEN

Journal Article