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检索条件"任意字段=International Conference on Computer Modeling and Simulation"

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simulation of Electrofusion Parameters of PE Saddle Pipe Based on Finite Element Analysis of Temperature Field 7th

Simulation of Electrofusion Parameters of PE Saddle Pipe Bas...

引用

7th international conference on Life System modeling and simulation, LSMS 2021, and 7th international conference on Intelligent Computing for Sustainable Energy and Environment, ICSEE 2021

作者： Yu, Wenchao Yang, Qihua Zhang, Wei Chen, Yuan Sun, Jie School of Mechanical and Electrical Engineering China Jiliang University Hangzhou310018 China Ningbo Heng Yuan Precision Pipe Valve Technology Co. Ltd. Ningbo315000 China

ISBN: (纸本)9789811672095

This paper compares the electrofusion welding of PE saddle pipe with that of conventional straight pipe, and many differences are identified under the two structure types. Then, a one-dimensional axisymmetric transient heat transfer model and a three-dimensional model of saddle pipe during electrofusion welding are established. Finite element (FE) software is used to analyze the relationship between the distribution of resistance wire, the material of resistance wire, the ambient temperature, and the formation and evolution of electrofusion temperature field. Based on FE analysis results, this paper points out possible problems of welding quality due to the distribution of resistance wire and the selection of wire materials, which can serve as reference for the formulation and the optimization of actual process parameters. © 2021, Springer Nature Singapore Pte Ltd.

关键词： Finite element method

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Empirical Study of Far-Field Crop Quality Examination Models: A Numerical Outlook

引用

international conference on modeling, simulation and Optimization, CoMSO 2021

作者： Dhande, Akshay Malik, Rahul Department of Electronics and Telecommunication Engineering Lovely Professional University Punjab Phagwara India Department of Computer Science and Engineering Lovely Professional University Punjab Phagwara India

ISBN: (纸本)9789811908354

Analysis of crop quality from image data is a multi-domain task, which includes effective image capture, pre-processing, fusion, segmentation, feature extraction, selection of optimum features, classification and post-processing. In order to perform these tasks with utmost efficiency, several architectures have been proposed by researchers and satellite image processing system designers. These architectures vary widely in terms of performance parameters like accuracy, response time, applicability to different types of imagery, image data requirement, etc. For instance, architectures that are well suited for cotton crop analysis do not give good accuracy for other crop types, while generalized architectures that have high accuracy, underperform when applied to specialized crop types. Moreover, selection of algorithms at micro-level is also difficult due to a large variety of architectures available for each of the internal tasks. In order to reduce this ambiguity, the underlying text analyzes various state-of-the-art recent models and architectures that are proposed for high efficiency crop analysis using satellite image processing. The analysis is supported by statistical comparison and recommendations for these architectures w.r.t. their field of application, and desired system performance capabilities. This text also recommends optimizations to the reviewed architectures in order to further improve their parametric performance and large scale deploy-ability. © 2022, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

关键词： Crops

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3D Finite Element Modelling of Mixing Phenomena in Droplet-based Microfluidic Systems

3D Finite Element Modelling of Mixing Phenomena in Droplet-b...

引用

international Baltic Electronics conference, BEC

作者： Zsombor Szomor Nafisat Gyimah Péter Fürjes Tamás Pardy Microsystems Lab. Inst. of Technical Physics and Materials Science HUN-REN Centre for Energy Research Doctoral School on Materials Sciences and Technologies Óbuda University Budapest Hungary Thomas Johann Seebeck Department of Electronics Tallinn University of Technology Tallinn Estonia Microsystems Lab. Inst. of Technical Physics and Materials Science HUN-REN Centre for Energy Research Budapest Hungary

ISBN: (数字)9798350365115

ISBN: (纸本)9798350365122

This study characterizes the mixing processes within microscale confinements in three-phase microfluidic systems designed for droplet generation. Finite Element modeling (FEM) was employed to analyze droplet formation and mixing efficiency using the Laminar Flow, Ternary Phase Field, and Transport of Diluted Species modules in COMSOL Multiphysics. The numerical simulations revealed that specific microfluidic channel designs significantly impact mixing efficiency within droplets. A serpentine channel architecture enhanced mixing efficiency by up to 15% compared to a straight channel design. In curved channels, Dean instability created vortices, significantly enhancing mixing within droplets. Varying flow rates also affected the mixing process: initial flow rates of 0.2 µl/s for water, 0.2 µl/s for BSA solution, and 0.02 µl/s for oil (1:20 ratio) resulted in steady phase distributions with limited mixing, while adjusted flow rates of 0.2 µl/s for water, 0.2 µl/s for BSA solution, and 1.4 µl/s for oil (3.5:1 ratio) induced a droplet generation regime, enhancing mixing efficiency. Optimized channel designs and flow rates are crucial for achieving homogeneous environments in microdroplets, essential for individual cellular and molecular studies.

关键词： Solid modeling Three-dimensional displays Oils Microprocessors computer architecture Numerical simulation Physiology Finite element analysis Microfluidics Microchannels

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Analysis on the operation condition of Rubber belt CVT of baja Racing car 7

Analysis on the operation condition of Rubber belt CVT of ba...

引用

2020 7th international conference on computer-Aided Design, Manufacturing, modeling and simulation, CDMMS 2020

作者： Ai, Tianle Xiao, Siying You, Zhanpeng Tianle Ai School of International Education Wuhan University of Technology Wuhan China School of Chinese Language and Literature CCNU Central China Normal University Wuhan China School of International Education Wuhan University of Technology Wuhan China

Baja racing is a kind of simple off-road racing originated in the United States, is the predecessor of Formula Student racing. This article through to the baja racing rubber belt type stepless transmission, for its mechanical characteristics, temperature characteristics and movement of the thermodynamic conditions of resonance are analyzed when the validation, thus more clearly the working characteristics of the rubber belt type stepless transmission to optimization design in after the game, make it can match various complex conditions of movement and maintain maximum speed ratio. This paper USES CATIA to establish the model, USES the MODAL module of ANSYS WORKBENCH to carry out the 12-order MODAL analysis, USES STATIC STRUCTURAL to carry out the force analysis, USES Steady State Thermal to carry out the analysis of the temperature change when the rubber belt stepless transmission works, and USES Matlab to carry out the simple automobile vibration simulation analysis. Finally, the conclusion is drawn and the design optimization analysis is carried out, so that the rubber belt CVT can achieve better dynamic performance and structural stability. © 2021 Institute of Physics Publishing. All rights reserved.

关键词： Vibration analysis

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Neuro-fuzzy Control of a Mobile Robot

Neuro-fuzzy Control of a Mobile Robot

引用

international conference on Sciences and Techniques of Automatic Control and computer Engineering (STA)

作者： Islem Reguii Imen Hassani Chokri Rekik Control and Energy Management Laboratory (CEM Lab) University of Sfax National Engineering School of Sfax Sfax Tunisia

ISBN: (纸本)9781665482622

This paper is aimed at looking in to solve the robot navigation problem. This problem is treated using two techniques. It has been found that the fuzzy logic system is able to navigate the autonomous mobile robot in an unknown environment. In the same way, the neuro-fuzzy is used to adjust the consequences parameters of fuzzy controller in order to drive the khepera IV robot to the target, with an optimal and safe trajectory. A comparative study is made to show the performance of the Adaptative Neuro-Fuzzy Inference System (ANFIS) against fuzzy logic controller (FLC). simulation results are given to demonstrate the satisfactory of the developed techniques.

关键词： Fuzzy logic Robot motion Navigation simulation Computational modeling Control systems Trajectory

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Forward Kinematic Analysis of JACO2 Robotic Arm Towards Implementing a Grapes Harvesting Robot 28

Forward Kinematic Analysis of JACO2 Robotic Arm Towards Impl...

引用

28th international conference on Software, Telecommunications and computer Networks (SoftCOM)

作者： Pachidis, Theodore Sgouros, Christos Kaburlasos, Vassilis G. Vrochidou, Eleni Kalampokas, Theofanis Tziridis, Konstantinos Nikolaou, Alexandros Papakostas, George A. Int Hellen Univ IHU Dept Comp Sci Human Machines Interact Lab HUMAIN Lab Kavala Greece

ISBN: (纸本)9789532900996

Robotic manipulators are widely used in many robotic systems, due to their speed, precision and robustness to perform a variety of tasks sometimes better and faster than humans. The development of a robotic system based on a robotic arm, requires accurate mathematical and simulation modeling of the robotic arm. This paper presents the complete mathematical forward kinematic analysis and the Robotic Operating System (ROS) simulation modeling of JACO2 robotic manipulator. Both analysis and simulation models are essential in order to customize the robot for novel applications, e.g. to perform agricultural operations such as harvest, as part of an autonomous harvesting robot.

关键词： robotic arm manipulator harvesting robot simulation forward kinematic

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Optimized Passivity-Based Control of Series Hybrid Fuel Cell Source

Optimized Passivity-Based Control of Series Hybrid Fuel Cell...

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international conference on Sciences and Techniques of Automatic Control and computer Engineering (STA)

作者： Said Bedda Ilyes Tegani Messaoud Mohammedi Okba Kraa Energy systems Modeling laboratory Mohamed Khider University Biskra Algeria High school of industrial technologies Annaba Algeria

ISBN: (纸本)9781665482622

Within the scope of this study, we put up the idea of the design of a polynomial RST controller to control a drive-train speed of an electric vehicle. It can modify the overall performance of the vehicle. Not only can the robust RST controller guarantee fast dynamic behavior and accurate control of the vehicle's speed, but it can also make it possible for the battery and the motor to exert enough power to achieve the desired speed. The efficiency of the control system is demonstrated by the application of different simulation tests and driving cycle profiles.

关键词： Damping simulation Fuel cells Hybrid power systems Batteries Behavioral sciences Energy management

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Improvement of the vibration analysis technique by optimizing the parameters of the piezoelectric accelerometer

Improvement of the vibration analysis technique by optimizin...

引用

international conference on Sciences and Techniques of Automatic Control and computer Engineering (STA)

作者： Zine Ghemari Salah Belkhiri Mohamed Razi Morakchi Electrical Engineering Department University Mohamed Boudiaf M'sila M'sila Algeria Electrical Engineering laboratry University Mohamed Boudiaf M'sila M'sila Algeria

ISBN: (纸本)9781665482622

Condition-based maintenance is the most advanced form of maintenance because it is based on the actual state of the machine. It allows for better manage the interventions according to the state of the machine, its wear, or its degradation. The most widely used technique for this type of maintenance is vibration analysis because it detects the majority of faults in rotating machines. In this work, we studied the piezoelectric sensor which is considered the first element of the vibration measurement chain, and the modeling and simulation of the latter allowed us to improve their characteristics and their performance.

关键词： Vibrations Accelerometers Rotating machines simulation Resonant frequency Vibration measurement Frequency measurement

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System-level Security Solution for Heterogeneous D2D-underlaid Cellular Network

System-level Security Solution for Heterogeneous D2D-underla...

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international conference on Wireless Communications and Signal Processing (WCSP)

作者： Shaohan Feng Xiao Lu Dusit Niyato Yuan Wu Wenbo Wang School of Information and Electronic Engineering Zhejiang Gongshang University Hangzhou China Research and Development Ericsson Canada School of Computer Science and Engineering Nanyang Technological University Singapore State Key Laboratory of Internet of Things for Smart City University of Macau Macao SAR China School of Mechanical and Electrical Engineering Kunming University of Science and Technology Kunming China

This paper focuses on the problem of secure communications in a D2D-underlaid cellular network, where device-to-device (D2D) communication operates in a hybrid manner using both millimeter-wave (mmWave) and microwave frequency bands. To combat vigilant adversaries, we employ the technique of covert communication to conceal the presence of legitimate D2D transmissions. The D2D transmitters employ power control, communication-mode switching, and leverage the cellular signals to evade detection by adversaries. The conflict situation between the D2D transmitters and the adversaries is modeled as a Stackelberg game. To mathematically characterize the network’s spatial configuration, we utilize the stochastic geometry modeling and consider a large-scale D2D-underlaid network, enabling a system-level analysis of communication strategies. We analyze the game equilibrium and thereafter search for equilibrium by using a bi-level algorithm. Insightful findings are drawn from numerical simulation results.

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Calculation of the destruction of ice structures by the grid-characteristic method on structured grids 25

Calculation of the destruction of ice structures by the grid...

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25th KES international conference on Knowledge-Based and Intelligent Information & Engineering Systems (KES)

作者： Favorskaya, Alena Petrov, Igor Moscow Inst Phys & Technol 9 Inst Sky Lane Dolgoprudnyi 141700 Moscow Region Russia Sci Res Inst Syst Anal RAS 36 1 Nahimovskij Pr Moscow 117218 Russia

Sea ice is a difficult object to study due to its heterogeneous structure and location near the melting point. This paper proposes a model of ice ridges as a heterogeneous structure with multiple water and air inclusions, free boundaries and free sliding contact boundaries. The dynamic growth of cracks in a given heterogeneous structure under intense dynamic influences is considered, which makes the considered boundary value problem nonlinear. The influence of explosion parameters (location of sources, frequency, number of periods) on the nature of the destruction of the ice ridges was investigated. The work also investigates the collision of an ice island with ice floes. For calculations, the grid-characteristic method is used on structured rectangular computational grids. (C) 2021 The Authors. Published by Elsevier B.V.

关键词： grid-characteristic method ice ridges sea ice rheology ice island collisions explosions computational experiments mathematical modeling computer simulation

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