Showing 3,721 - 3,740 results of 4,161 for search '"Finite elements"', query time: 0.07s Refine Results
  1. 3721

    Structural Design of Partitioned Stator Doubly Salient Permanent Magnet Generator for Power Output Improvement by Warat Sriwannarat, Apirat Siritaratiwat, Pirat Khunkitti

    Published 2019-01-01
    “…Electrical characteristics including the magnetic flux linkage distribution, phase EMF, cogging torque, voltage regulation, and power output profile were characterized by using the finite element method. After optimizing the generator pole structure including the angle of air gap arc width, it was found that the proposed PS-DSPG with 18/15 (stator/rotor) pole structure with optimized air gap arc width could produce higher EMF of about 23.24% than a conventional structure because this structure has the suitable number of pole structures. …”
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  2. 3722

    Geotechnical Investigation of the Slope Instability in the Gündoğan Village Settlement Area (Ardeşen-Rize) by Ayberk Kaya, Cem Demirbaş, Serhat Dağ

    Published 2018-07-01
    “…Limit equilibrium and the Finite Element based Shear Strength Reduction (FEM-SSR) methods were used to perform stability analyses using the obtained data from field and laboratory studies and the results were compared. …”
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  3. 3723

    A Flexible Polynomial Expansion Method for Response Analysis with Random Parameters by Rugao Gao, Keping Zhou, Yun Lin

    Published 2018-01-01
    “…This paper aims to develop a flexible polynomial expansion method for response analysis of the finite element system with bounded random variables following arbitrary probability distributions. …”
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  4. 3724

    Numerical Investigation of Multistage Fractured Horizontal Wells considering Multiphase Flow and Geomechanical Effects by Jun Li, Yuetian Liu, Kecong Ma

    Published 2021-01-01
    “…In this study, a three-dimensional fluid–gas–solid coupling reservoir model is proposed, and the governing equations which involve the early injection water phenomenon and stress-sensitive characteristics of shale gas reservoirs are established. The finite element–finite difference method was used for discretisation of stress and strain equations and the equations of flow balances. …”
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    Article
  5. 3725

    Fatigue Damage Evaluation of Pile-Supported Bridges under Stochastic Ice Loads by Tianyu Wu, Wenliang Qiu, Guangrun Wu

    Published 2020-01-01
    “…Fatigue damage analysis is carried out in time domain utilizing the finite element method considering soil and bridge structure interaction. …”
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  6. 3726

    A Coupling Dynamics Analysis Method for Two-Stage Spur Gear under Multisource Time-Varying Excitation by Zizhen Qiao, Jianxing Zhou, Wenlei Sun, Xiangfeng Zhang

    Published 2019-01-01
    “…A new modeling method is proposed to simulate the dynamic response of a two-stage gear transmission system using the finite element method (FEM). The continuous system is divided into four modules: shaft-shaft element, shaft-gear element, shaft-bearing element, and gear-gear element. …”
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  7. 3727

    A cohesive zone model to simulate the hydrogen embrittlement effect on a high-strength steel by G. Gobbi, C. Colombo, L. Vergani

    Published 2015-12-01
    “…The study deals with the development of 2D finite element cohesive zone model (CZM) reproducing a toughness test. …”
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    Article
  8. 3728

    Evaluation of Existing Bond-Slip Relations for CFRP-Steel Joints and New Model for Linear and Nonlinear Adhesives by Mohammed J. Altaee, Sarmed A. S. Altayee, Majid M. A. Kadhim, Akram Jawdhari, Ali Majdi, Ali Chabuk, Nadhir Al-Ansari

    Published 2022-01-01
    “…To facilitate the evaluation process, a robust finite element (FE) model is developed for each test, implementing data from either of the existing τ-s relations to define the FRP-steel interface. …”
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    Article
  9. 3729

    Modeling, Assessment, and Design of Porous Cells Based on Schwartz Primitive Surface for Bone Scaffolds by Rita Ambu, Anna Eva Morabito

    Published 2019-01-01
    “…A numerical structural evaluation, by means of finite element method (FEM), was performed in order to assess the stiffness of solid P-cells as a function of the changes of the analytical parameters of outer surface and the thickness of cell. …”
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  10. 3730

    EVALUATION OF STRAIN-STRESS STATE OF THE RAILS IN THE PRODUCTION by V. V. Muravev, K. A. Tapkov

    Published 2017-09-01
    “…Estimation of residual stresses values allows to get information about technical condition of the rail and also allow to avoid abnormal situations So, the aim of the research is creating the model of stress-strain state of the rail, which was hardened in its top and bottom, and to compare modeling results with experimental measurements of stresses and discrepancy of the housing.For creating the model and making evaluations by finite element method we used a program COMSOL. Forces on the top and bottom of the rail cause tension stresses, forces on the web of the rail cause tensile stresses. …”
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  11. 3731

    风机偏心对空冷梁式桥架振动实验研究 by 郭铁能, 孟令军, 白春生, 华旭

    Published 2021-01-01
    “…The vibration problem of air-cooling fan bridge has been troubling the north thermal power plant.Excessive vibration amplitude causes the damage of fan,motor,reducer and other equipment,and affects the stability and economic benefit of power plant operation.In this paper,the vibration speed of the air-cooling fan exceeded the standard as the research object,and the data acquisition instrument and acceleration sensor were used to test the vibration of the air cooling fan bridge in the power plant of xiaoyi in Shanxi Province.According to the frequency characteristics generated by these incentives,the main influence factors of the vibration of the fan bridge caused by the original fan blades were explored.By analyzing the vibration signal,the main influencing factors of the vibration of fan bridge are explored according to the frequency characteristics.The test results show that the excessive vibration of the bridge is caused by the interference force caused by the fan eccentric mass.During the operation of the fan,the phase of the sensor at the middle of the bridge alternates positively and negatively,and the fan shaft produces a sway,which is inconsistent with the expected horizontal vibration of the bridge.In order to verify the rationality of the above analysis,the finite element analysis of the bridge frame was carried out,and the results are consistent with the above conclusions.Through the forced vibration test and hammer test of the fan bridge,it is found that the maximum frequency value of the vibration of the fan bridge caused by eccentric mass is far away from the natural vibration frequency of the fan bridge,and will not cause the resonance phenomenon of the fan bridge.Therefore,the vibration of the fan bridge caused by eccentric mass is only related to the static stiffness of the fan bridge.The test results will provide a basis for the design of beam bridge and the avoidance of vibration caused by fan eccentricity.…”
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  12. 3732

    STUDY ON THE STRUCTURAL CHARACTERISTICS OF LARGE WIND TURBINE COMPOSITE BLADE BASED ON BEND-TWIST COUPLING by ZHANG Li, MIAO WeiPao, LI Chun, YAN YangTian, LIU QingSong, WANG Bo

    Published 2021-01-01
    “…In order to study the structural characteristics of different types of bend-twist coupling blades, the NREL 5 MW wind turbine blade was used as the research object, combined with composite material laying design to establish finite element models of different BTC blades, the aerodynamic load of the blades were solved by CFD method. …”
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    Article
  13. 3733

    Fluid Flow and Heat Transport Computation for Power-Law Scaling Poroperm Media by Peter Leary, Peter Malin, Rami Niemi

    Published 2017-01-01
    “…Global meshes populated by spatially correlated stochastic poroperm distributions can be processed by 3D finite-element solvers. We model wellbore-logged Dm-scale temperature data due to heat advective flow into a well transecting small faults in a Hm-scale sandstone volume. …”
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  14. 3734

    Influence of compliance of intramodular joints on the natural vibrations frequency of a modular building by V. S. Shirokov

    Published 2023-10-01
    “…According to the obtained results, the discrepancy in the frequency values calculated by the finite element method and analytically for a one-story building with different ratios of the rotational stiffness of the joints does not exceed 1.5 %. …”
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  15. 3735

    A geometrical optimisation of a coplanar micro-electrode structure for microfluidic flow cytometry by Van Phu Nguyen, Van-Anh Bui, Thu Hang Nguyen, Van Thanh Pham, Thi Thanh Thuy Dang, Quang Loc Do

    Published 2024-12-01
    “…To further investigate the electric field and optimise the electrode design for single-cell detection, a numerical 3D model based on the finite element method (FEM) was developed and implemented. …”
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  16. 3736

    Advances in Surface Plasmon Resonance-Based Biosensor Technologies for Cancer Cell Detection by Bhishma Karki, Arun Uniyal, Amrindra Pal, Vivek Srivastava

    Published 2022-01-01
    “…It may become a fast method of detecting cancerous cells and the several variants of corona and other viruses that become pandemic. Using the finite element method-based simulation technique, the sensitivity obtained as 195.4 degree/RIU, 167.6 degree/RIU, 212.4 degree/RIU, 168.4 degree/RIU, 212.4 degree/RIU, 186.6 degree/RIU, 218.6 degree/RIU, 195.4 degree/RIU, 203.6 degree/RIU, 202.6 degree/RIU 203.6 degree/RIU, and 202.6 for basal (skin cancer), basal (normal cell), HeLa (cervical cancer), MCF-7 (breast cancer), HeLa (normal cell), Jurkat (blood cancer), Jurkat (normal cell), PCI-2 (adrenal gland cancer), PCI-2 (normal cell), MDA-MB-231 (breast cancer), MDA-MB-231 (normal cell), MCF-7 (breast cancer), and MCF-7 (normal cell), respectively, and other performance parameters such as detection accuracy, figure of merit, and full width and half maximum (FWHM) are also evaluated.…”
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    Article
  17. 3737

    Modelling Cell Origami via a Tensegrity Model of the Cytoskeleton in Adherent Cells by Lili Wang, Weiyi Chen

    Published 2019-01-01
    “…Cell origami has been widely used in the field of three-dimensional (3D) cell-populated microstructures due to their multiple advantages, including high biocompatibility, the lack of special requirements for substrate materials, and the lack of damage to cells. A 3D finite element method (FEM) model of an adherent cell based on the tensegrity structure is constructed to describe cell origami by using the principle of the origami folding technique and cell traction forces. …”
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  18. 3738

    Crack Risk Evaluation of Submerged Concrete Tunnel during Hardening Phase by G. M. Ji, T. Kanstad, Ø. Bjøntegaard

    Published 2018-01-01
    “…First, the well-documented material models are verified by calibration of restraint stress development in the TSTM test by using the finite element method (FEM), and then the 3D thermal-structural analysis is performed to assess the cracking risk for the submerged tunnel during the hardening phase. …”
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  19. 3739

    Surface crack growth subject to bending and biaxial tension-compression by V. Shlyannikov, A. Tumanov, A. Zakharov, A. Gerasimenko

    Published 2016-01-01
    “…For the experimental surface crack paths in tested specimens the T-stress, the local triaxiality parameter h, the out-of-plane TZ factor and the governing parameter for the 3D-fields of the stresses and strains at the crack tip in the form of In-integral were calculated as a function of aspect ratio by finite element analysis to characterization of the constraint effects along semi-elliptical crack front. …”
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  20. 3740

    Crashworthiness and Deformation Pattern Analysis of Single and Double Wall with Addition Infill Structure by Redyarsa Dharma Bintara, Moch. Agus Choiron, Yahya Zakariya, M. Hasbi Ash Shiddieqy, Fajar Adi Pratama

    Published 2024-07-01
    “…Furthermore, a simulation test was carried out using software based on the finite element method with an explicit dynamic analysis type. …”
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