Showing 61 - 80 results of 116 for search '"Geometric modeling"', query time: 0.06s Refine Results
  1. 61

    Relecture de vocabulaires d’architecture : apport de la complexité des représentations numériques dans la caractérisation de formes architecturales by David Lo Buglio

    Published 2019-05-01
    “…By highlighting the contradictions between the vocabularies themselves and the geometric model, this article discusses the contribution of methods of analysis coming from computer graphics for the development of architectural knowledge.…”
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    Article
  2. 62

    Developing an Extended IFC Data Schema and Mesh Generation Framework for Finite Element Modeling by Zhao Xu, Zezhi Rao, Vincent J. L. Gan, Youliang Ding, Chunfeng Wan, Xinran Liu

    Published 2019-01-01
    “…In this paper, a method based on BRep entity transformation is proposed to realize the finite element analysis using the geometric model in the IFC standard. The h-p version of the finite element analysis method can effectively deal with the refined expression of the model of bending complex components. …”
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    Article
  3. 63

    Structural optimization and flow field analysis of turbomolecular pump based on a new performance prediction algorithm by Kun Sun, Haishun Deng, Cheng Wang, Shiwei Zhang

    Published 2024-06-01
    “…Abstract In the present study, a new turbomolecular pump (TMP) performance prediction algorithm is proposed according to the variable surface combined blade row (VSCBR) geometric model. The simulation calculation program is designed to perform structural optimization and flow field analysis. …”
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    Article
  4. 64

    Methods for User-Controlled Synthesis of Blood Vessel Trees in Medical Applications: A Survey by Nikolaus Rauch, Matthias Harders

    Published 2025-01-01
    “…Various applications in medicine require geometric models of the underlying blood vessel networks. …”
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    Article
  5. 65

    Effect of Centrifugal Adhesion of Pollutant on Thermal Elastohydrodynamic of Water-lubricated Hybrid Journal Bearing by Zhang Tonggang, Wang Youqiang, Wang Limei, Xu Caihong

    Published 2018-01-01
    “…The elastohydrodynamic lubrication geometric model of centrifugal pollutants adhesion is established. …”
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    Article
  6. 66

    Design and Characteristic Research of the Spindle Box of Vertical Machining Center by Gao Dongqiang, Yang Lei, Sun Qian, Zhang Xifeng

    Published 2015-01-01
    “…Headstock is the key components of the high speed vertical machining center,its static stiffness,dynamic characteristics has great effect on machining precision and stability of machining center.Taking DVG850 high speed vertical machining center spindle box as the research object,the design scheme of geometrical model of four kinds of different structure of spindle box is established,by using the finite element simulation software,the simulating calculation of the statics,modal and harmonic response of the spindle box are carried out,the resonance region of spindle box under static stiffness,natural frequency,vibration mode and the excitation frequency are got.Through the comparison analysis of finite element simulation of cloud and data,known that scheme two rib structure is the best layout,it is indicated that the research method can be to improve the spindle box structure natural frequency and increase the structure stiffness.provides the basis for avoiding resonance,for other machine tool spindle box the theory basis for optimization of structural design and improvement is provided,the design cycle can be shorten.…”
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  7. 67

    INVESTIGATION ON FINITE ELEMENT MODELING METHOD OF WITH TRIPLE JUNCTION POLYCRYSTALLINE INTERGRANULAR FRACTURE by SHI JunLin, ZHAO JianPing

    Published 2018-01-01
    “…Cohesive zone model was used to simulate polycrystalline intergranular fracture at the grain level model,the finite element model build-ing reflected the actual situation is a difficult point.In this paper,Mixed Programming of Matlab,Python and Abaqus,An algorithm was presented which can easily and quickly generated Voronoi geometric model and the grain sizes distribution agrees with lognormal distribution.Realized the automatically insert the zero-thickness cohesive interface element by writing nodes and elements at crystal boundary,firstly solved the void zone at the intersection of the three zerothickness cohesive element,which is the triple junction,And to make up the defect of cohesive zone model.The whole process of the finite element analysis was performed automatically by secondary development,including the assignation material properties,material orientation,load application,model solution.Finally,polycrystalline aluminum was used as an example to simulate the intergranular fracture process without the initial damage.The results show that the method is more effectively and practically,which can be used to simulate polycrystalline intergranular crack initiation and propagation in random microscopic grains.…”
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    Article
  8. 68

    Digital Twin in Computational Design and Robotic Construction of Wooden Architecture by Ye Zhang, A. Meina, Xuhao Lin, Kun Zhang, Zhen Xu

    Published 2021-01-01
    “…The design outcome is no longer a fixed, predefined geometric model but a dynamic, data-driven model which would be updated by material conditions on-site. …”
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    Article
  9. 69

    Structural characteristic analysis of new type bend-twist coupling blades of large wind turbine by WANG HaiSheng, MIAO WeiPao, LI Chun, ZHANG Li, ZHU HaiBo

    Published 2024-06-01
    “…In order to study the structural performance of the new bend-twist coupling blade, NREL 5 MW blade was taken as the prototype, and the geometric model of the blade was established by using NX Open Grip parameterization language. …”
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    Article
  10. 70

    A Numerical Study on the Progressive Failure of 3D Four-Directional Braided Composites by Kun Xu

    Published 2013-01-01
    “…A new unit cell geometrical model, taken as the representative volume element (RVE), is proposed to describe the yarn configuration of 3D braided composites produced by the four-step 1 × 1 method. …”
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    Article
  11. 71

    Analysis of Acoustic Characteristics of Arbitrary Triangular Prism and Quadrangular Prism Acoustic Cavities by Dongyan Shi, Ying Zhang, Lv Xiuhai

    Published 2019-01-01
    “…This paper proposes a method for the analysis of acoustic modals and steady-state responses of arbitrary triangular prism and quadrangular prism acoustic cavities based on the three-dimensional improved Fourier series. First, the geometric models of arbitrary triangular prism and quadrangular prism acoustic cavities are established. …”
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    Article
  12. 72

    HIGH⁃FIDELITY FINITE ELEMENT SIMULATION AND EXPERIMENTAL VERIFICATION OF BOLT PRELOAD FORCE UNDER TIGHTENING TORQUE by QIAN Jin, CHEN Guo, CUN WenYuan, ZHAO XuSheng, ZHANG Xu, ZHAO ZhengDa

    Published 2024-08-01
    “…The finite element simulation method of bolt torsion under the tightening torque process was carried out,a quantitative relation between the tightening torque and the bolt preload was established for an actual structure.Firstly,the geometric model of the bolt with three⁃dimensional oblique thread was built,and the finite element mesh with thread was divided by using Hypermesh software,and the corresponding mechanical contact pairs were redefined.Then,Ansys Workbench software was used to apply the different sizes of tightening torque to the lower surface of the nut to obtain the magnitude of the corresponding axial force,so that the functional relation between the tightening torque and the bolt tension could be obtained.Finally,a bolt preload test was designed and the experimental,emulational and theoretical results were compared to verify the method.The results show that the results of the finite element simulation model are closer to the experimental results compared to the theoretical calculation results.The high⁃fidelity finite element model of bolt preload in this paper provides an important method for further accurate analysis of the bolt mechanics mechanism.…”
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  13. 73

    How does the mode of evolutionary divergence affect reproductive isolation? by De Sanctis, Bianca, Schneemann, Hilde, Welch, John J.

    Published 2023-01-01
    “…To investigate these connections, we present a new analysis of hybridization under Fisher's geometric model, making few assumptions about the allelic effects that differentiate the hybridizing populations. …”
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  14. 74

    A novel approach for large-scale hybrid mesh generation on distributed systems by Bohan Wang, Hongfei Ye, Jianjun Chen, Yao Zheng

    Published 2024-12-01
    “…A triangular surface mesh that conforms with the original geometrical model is prepared as input and decomposed into multiple subdomains. …”
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    Article
  15. 75

    Modal Parameters Identification Method Based on Symplectic Geometry Model Decomposition by Hang Jin, Jianhui Lin, Xieqi Chen, Cai Yi

    Published 2019-01-01
    “…This paper proposes a novel method of structural system modal identification, where the iterative method is introduced in symplectic geometric model decomposition (SGMD). The proposed method can decompose the measured response into finite symplectic geometric components and identify the modal parameters of time-invariant structures and the instantaneous frequency of time-variant system through each symplectic geometric component. …”
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  16. 76

    Estimation of viscosity for some silicate ternary slags by Shu Q., Wang L., Chou K.C.

    Published 2014-01-01
    “…A new method, combining KTH model with geometrical model (General solution model by Chou) to estimate viscosity of some ternary silicate slags, was proposed in this work. …”
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  17. 77

    CONTACT FINITE ELEMENT ANALYSIS OF JOINT BEARING LAMINATED MEMBRANE COUPLING UNDER COMPOSITE LOADING by SHENTU LiuFang, SUN ChengLong, ZHAO QingJia, ZHANG Yan

    Published 2016-01-01
    “…Based on the finite element analysis software ANSYS,the geometric model of laminated group is provided,some contacts between the diaphragms are added and methods of applying different loads are proposed. …”
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    Article
  18. 78

    Analysis of the Thermal Elastohydrodynamic Lubrication of Water-lubricated Hybrid Ceramic Bearing by Zhang Tonggang, Wang Youqiang, Xu Caihong, Wang Limei

    Published 2017-01-01
    “…The elastohydrodynamic lubrication geometric model of water-lubricated hybrid ceramic journal bearing is established. …”
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    Article
  19. 79

    A Systems Thinking Approach to the Development of HBIM: Part 1—The Problematic Situation by Lucy J. Lovell, Richard J. Davies, Dexter V. L. Hunt

    Published 2025-01-01
    “…The responses to the survey suggest that the development of HBIM should prioritise the promotion of structured information management instead of the generation of detailed geometric models, a key theme of much existing research. …”
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    Article
  20. 80

    Research on Cooperative Control of the Hydraulic System of Multiple Intelligent Vehicles Combined Transportation by Jianjun Wang, Jingyi Zhao

    Published 2020-01-01
    “…The simulation results show that adding the PID control algorithm can improve the speed stability of the transport vehicle. And the geometric model of the steering mechanism is established, the functional relationship between the steering angle and the stroke of the steering cylinder is obtained, and the relationship between the electric signal of proportional valve and the steering angle is deduced. …”
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    Article