• 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...

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  • 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...

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  • 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...

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  • 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: 510 | 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...

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  • Modeling the differential motion of a mobile manipulator and designing a new visual servoing for tracking a flying targetModeling the differential motion of a mobile manipulator and designing a new visual servoing for tracking a flying target

    This article has shown a process for modelling the differential motion of a mobile manipulator by using Paul’s algorithm. Subsequently, a fully novel visual servoing for tracking a flying target is designed with the purpose of making the target’s image feature tend asymptotically to the center of the image plane when both the mobile robot and the ...

    pdf17 trang | Chia sẻ: huongthu9 | Ngày: 11/08/2021 | Lượt xem: 457 | Lượt tải: 0

  • Sliding mode control for a planar parallel robot driven by electric motors in a task spaceSliding mode control for a planar parallel robot driven by electric motors in a task space

    This paper presented the modeling of a parallel robot driven by DC motors. The equations of motion for parallel manipulator were derived by using the redundant generalized coordinates and the Lagrangian multipliers. Moreover, the dynamics of DC motors were also integrated in the whole models of the system. The obtained model in this study include...

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  • Designing optimal fuzzy controller for mrd-Based train-car suspension systemsDesigning optimal fuzzy controller for mrd-Based train-car suspension systems

    While the NUO compensated for UAD. By using the ANFIS-I-MRD and the control force estimated by the FDIC, the current for the MRD to stamp out chassis vibration was then determined. The stability of the FDIC was analyzed via Lyapunov stability theory. The effectiveness of the FDIC was validated via a comparative work with the NFSmUoC and the pas...

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  • Passivity based on energy tank for cartesian impedance control of dlr space robots with floating base and elastic jointsPassivity based on energy tank for cartesian impedance control of dlr space robots with floating base and elastic joints

    This paper presented a novel method to derive a dynamic model for a free-floating robot in operational space, which is necessary for the control design. Furthermore, a Cartesian impedance control design is derived from this, based on using energy tank to ensure passivity of the controlled system. Therefore, the controlled system can achieve stab...

    pdf13 trang | Chia sẻ: huongthu9 | Ngày: 11/08/2021 | Lượt xem: 511 | Lượt tải: 0