• Free vibration of functionally graded sandwich plates with stiffeners based on the third-Order shear deformation theoryFree vibration of functionally graded sandwich plates with stiffeners based on the third-Order shear deformation theory

    This paper investigates the free vibration behavior of stiffened FG sandwich plates based on the third order shear deformation and using the finite element method. Two plate configurations, i.e., plate with FG face-sheets and the homogenous core are metal and ceramic, respectively, are considered. The present results are compared to analytical ...

    pdf20 trang | Chia sẻ: huongthu9 | Ngày: 11/08/2021 | Lượt xem: 484 | Lượt tải: 0

  • Thermomechanical postbuckling of thick fgm plates resting on elastic foundations with tangential edge constraintsThermomechanical postbuckling of thick fgm plates resting on elastic foundations with tangential edge constraints

    The thermal and thermomechanical postbuckling behavior of thick FGM plates resting on elastic foundations with tangentially restrained edges have been analyzed. The analysis reveals that the tangential constraints of boundary edges has extremely sensitive influences on the buckling and postbuckling of FGM plates. Specifically, critical buckling ...

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  • Postbuckling of thick fgm cylindrical panels with tangential edge constraints and temperature dependent propertiesPostbuckling of thick fgm cylindrical panels with tangential edge constraints and temperature dependent properties

    The nonlinear response and postbuckling behavior of thick FGM cylindrical panels subjected to thermal, mechanical and thermomechanical loadings have been analyzed. Formulations are based on the higher order shear deformation shell theory taking geometrical nonlinearity, initial imperfection, panel-foundation interaction, tangential edge constrai...

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  • Free vibration of a cracked double-Beam carrying a concentrated massFree vibration of a cracked double-Beam carrying a concentrated mass

    In this paper, the influence of a concentrated mass on the natural frequencies of a double-beam consisting of two different simply supported beams is presented. When there is a concentrated mass the natural frequencies of the double-beam change. The changes in natural frequencies depend on the location of the mass and the mode shapes of the dou...

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  • Numerical simulation of solidification around a circular cylinder with natural convectionNumerical simulation of solidification around a circular cylinder with natural convection

    This research is funded by Vietnam National Foundation for Science and Technology Development (NAFOSTED) under grant number 107.03-2014.21. We are grateful to Prof. John C. Wells at Ritsumeikan University (Japan) for facilitating our computing resources.

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  • An evolutionary-Based optimization algorithm for truss sizing designAn evolutionary-Based optimization algorithm for truss sizing design

    A new evolutionary-based optimization is introduced and applied for optimal sizing of truss structures. Computational results obtained from some benchmark truss optimization problems illustrate the efficiency of the proposed algorithm. The convergence rate and computational cost (in terms of structural analyses) are also very competitive with som...

    pdf11 trang | Chia sẻ: huongthu9 | Ngày: 11/08/2021 | Lượt xem: 581 | Lượt tải: 0

  • On the interior ballistics of an underwater personal gunOn the interior ballistics of an underwater personal gun

    The interior ballistic problem for underwater shooting is considered in details in this paper. To work out the dependence of the pressure on the base of the projectile on the combustion of the charge as well as the resistance of the water environment on the projectile motion in the barrel tube are crucial for solving the problem. A software sui...

    pdf8 trang | Chia sẻ: huongthu9 | Ngày: 11/08/2021 | Lượt xem: 503 | Lượt tải: 0

  • Autonomous machining systemsAutonomous machining systems

    Recommendationfor applying new technologies such as cognitive agent and swarm intelligence in manufacturing control field to replace the centralized control of the current manufacturing system to a distributed control by building an autonomous machining system to reduce system downtime in the case of disturbances is a new contribution of this re...

    pdf14 trang | Chia sẻ: huongthu9 | Ngày: 11/08/2021 | Lượt xem: 466 | Lượt tải: 0

  • A research on the effect of cutting parameters on cutting force in flat grinding using segmented grinding wheelA research on the effect of cutting parameters on cutting force in flat grinding using segmented grinding wheel

    The article refers to the study of the influence of some process parameters including the number of segment, depth of cut and feed rate to the cutting force when grinding the SKD11 steel by Taguchi methods and analysis of variance (ANOVA). High accuracy and reliability (95 %) of the results of research using the Taguchi method and analysis of v...

    pdf10 trang | Chia sẻ: huongthu9 | Ngày: 11/08/2021 | Lượt xem: 500 | Lượt tải: 0

  • Neural network-Based adaptive tracking control for a nonholonomic wheeled mobile robot subject to unknown wheel slipsNeural network-Based adaptive tracking control for a nonholonomic wheeled mobile robot subject to unknown wheel slips

    In this work, well-known Lagrange formula was employed in order to derive both the kinematics and dynamics of the nonholonomic WMR in the presence of the unknown wheel slips. Then, the adaptive tracking controller based on the RBFNN with the online weight tuning algorithm has been developed to allow the WMR to track the desired trajectory with t...

    pdf16 trang | Chia sẻ: huongthu9 | Ngày: 11/08/2021 | Lượt xem: 425 | Lượt tải: 0