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Artículos de revistas sobre el tema "Online mathematical programming and simulation system"

Autor: Grafiati
Publicado: 4 de junio de 2021
Última modificación: 1 de febrero de 2022

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1

Fu, Zhi-Jun, Bin Li, Xiao-Bin Ning, and Wei-Dong Xie. "Online Adaptive Optimal Control of Vehicle Active Suspension Systems Using Single-Network Approximate Dynamic Programming." Mathematical Problems in Engineering 2017 (2017): 1–9. http://dx.doi.org/10.1155/2017/4575926.

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In view of the performance requirements (e.g., ride comfort, road holding, and suspension space limitation) for vehicle suspension systems, this paper proposes an adaptive optimal control method for quarter-car active suspension system by using the approximate dynamic programming approach (ADP). Online optimal control law is obtained by using a single adaptive critic NN to approximate the solution of the Hamilton-Jacobi-Bellman (HJB) equation. Stability of the closed-loop system is proved by Lyapunov theory. Compared with the classic linear quadratic regulator (LQR) approach, the proposed ADP-
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2

Mozaffari, Ahmad, Nasser L. Azad, and Alireza Fathi. "Auto-regressive multiple-valued logic neurons with sequential Chua’s oscillator back-propagation learning for online prediction and synchronization of chaotic trajectories." International Journal of Intelligent Computing and Cybernetics 8, no. 2 (2015): 102–38. http://dx.doi.org/10.1108/ijicc-11-2014-0046.

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Purpose – The purpose of this paper is to examine the structural and computational potentials of a powerful class of neural networks (NNs), called multiple-valued logic neural networks (MVLNN), for predicting the behavior of phenomenological systems with highly nonlinear dynamics. MVLNNs are constructed based on the integration of a number of neurons working based on the principle of multiple-valued logics. MVLNNs possess some particular features, namely complex-valued weights, input, and outputs coded by kth roots of unity, and a continuous activation as a mean for transferring numbers from c
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3

Wu, Feng Feng, Dong Sheng Li, Hong Jie Guo, and Shu Sheng Zhang. "A Rapid Adjustment Simulation System for Flexible Fuselage Assembly." Applied Mechanics and Materials 635-637 (September 2014): 1817–21. http://dx.doi.org/10.4028/www.scientific.net/amm.635-637.1817.

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The utilization of reconfigurable numerically controlled tooling is important for flexible fuselage assembly. An online programming and simulation system for flexible tooling is presented, which is composed of two modules. The online programming module generates NC code from an adjustment sequence and path, taking into consideration the process and device parameters. This paper details the second module, the visualized simulation module, which validates and optimizes the related adjustment process. This module covers three steps, those are, the creation of a virtual simulation environment base
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4

Oleynik, A. V., L. V. Kuznetsova, A. V. Nikolaev, L. Yu Kuznetsov, and M. Dimitrov. "Simulation System of Technological Support of Automated Complex." EPJ Web of Conferences 224 (2019): 06001. http://dx.doi.org/10.1051/epjconf/201922406001.

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Mathematical modeling of technical and technological systems and processes occurring in these systems can be interpreted as multi-step processes of solving managerial problems, where the application of classical methods for obtaining numerical results is possible. In particular, it is practical to apply the theory of dynamic programming based on the use of functional equations and the optimality principle to solve the problem of resource allocation. In the formulation and solution of the dynamic programming problem, the process is divided into stages in time, and at each stage decisions at whi
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5

Shi, Tong Ju, and Xin Shun Ma. "Development of Web-Based Experiment for Integer Programming Using Java Applet." Advanced Materials Research 756-759 (September 2013): 1998–2002. http://dx.doi.org/10.4028/www.scientific.net/amr.756-759.1998.

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Integer (Mixed integer) programming is one of important mathematical programs for solving many practical problems, such as economic management, optimization control and supply chain. The integer linear programming problem and its solution algorithm are studied in this paper, and Web-based mathematical experiments of Branch-and-bound algorithm developed using Java applets. The system of the experiment can not only demonstrate the basic principle and iterating procedure of the algorithm by online example, but also solve any new integer programming inputted by user. The developed system provides
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6

Fazlollahtabar, Hamed. "An Effective Mathematical Programming Model for Production Automatic Robot Path Planning." Open Transportation Journal 13, no. 1 (2019): 11–16. http://dx.doi.org/10.2174/1874447801913010011.

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Objective: Path planning for production robots has been investigated. The sequence of the orders to be processed in a certain planning horizon has been planned for the production system. Methods: Production automatic robots are employed to carry parts and products among all production stations and machining centers. The combination of machines in stations and autonomous robot evolves a production network. Results: The problem is to assign orders to robots so that paths are obtained to minimize total waiting times of production system and meanwhile provide collision-free paths. Conclusion: The
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7

Liu, Yan Ling, and Xin Zhang. "Simulaion on Strap-Down Inertial Navigation System Based on Simulink/M Programming Language." Applied Mechanics and Materials 467 (December 2013): 584–89. http://dx.doi.org/10.4028/www.scientific.net/amm.467.584.

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This paper presents the basic principles and algorithms of the trap-down Inertial Navigation System, and established the mathematical model and the simulation algorithm of the Inertial Navigation System based on Matlab /Simulink blocks combined with M Programming Language. After the simulation of the system, combined the calculated data, obtained the data error. The result proved that the model is correct and effective.
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8

Bo, Shi, and Li Yanming. "Establishment on Evaluation Indicator System for Power System Simulation Software." Open Electrical & Electronic Engineering Journal 8, no. 1 (2014): 372–78. http://dx.doi.org/10.2174/1874129001408010372.

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Computer simulation has become an important means of data processing, calculation analysis, online debugging, closed loop control, fault diagnosis, condition forecasting in power system. In order to solve the problem that there is a lot of power simulation software and users of the software have difficulty in choosing the evaluation index system, this paper studies evaluation indicator system of simulation software based on analytic hierarchy process and provides support for software selection. Firstly, analyzed and summarized the structure of evaluation index system model which consists of 8
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9

McCarl, Bruce A. "A Note on Fixing Misbehaving Mathematical Programs: Post-Optimality Procedures and GAMS-Related Software." Journal of Agricultural and Applied Economics 30, no. 2 (1998): 403–14. http://dx.doi.org/10.1017/s1074070800008385.

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AbstractMathematical programming formulations can yield faulty answers. Models can be unbounded, infeasible, or optimal with unrealistic answers. This article presents techniques for theory-based discovery of the cause of faulty models. The approaches are demonstrated in the context of linear programming. They have been computerized and interfaced using the General Algebraic Modeling System (GAMS), and are distributed free of charge through new GAMS versions and an online web page.
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10

Yu, Zhi Qiang, Tai Yong Wang, Yong Wang, Hong Bin Li, Yu Long Wang, and Yang Chen. "Technology of Online Inspection in CNC Machine Tool." Key Engineering Materials 693 (May 2016): 1492–97. http://dx.doi.org/10.4028/www.scientific.net/kem.693.1492.

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In this paper, an online inspection system is developed based on TDNC-H8 open CNC system. The system includes motion control, program management, the preservation and processing of the result and other functions. To check the rationality of inspection route, optimize and modify the inspection program, avoid accidental collision, online inspection simulation function is developed with Visual C++ programming tool and OpenGL graphics library.
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11

Kwak, N. K., and Chang W. Lee. "Business process reengineering for health-care system using multicriteria mathematical programming." European Journal of Operational Research 140, no. 2 (2002): 447–58. http://dx.doi.org/10.1016/s0377-2217(02)00082-6.

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12

Németh, Tamás, Sándor Nagy, and Csanád Imreh. "Online data clustering algorithms in an RTLS system." Acta Universitatis Sapientiae, Informatica 5, no. 1 (2013): 5–15. http://dx.doi.org/10.2478/ausi-2014-0001.

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Abstract This paper proposes and evaluates solutions for an online clustering problem and gives a mathematical model for it. The problem at hand occurs often in the fusion of data streams for example in real time locating systems. The goal is to gather as much incoming information from several sources as possible but also minimize the delay before the next processing step can be executed. The key characteristic is that the data is available in a bursty fashion, in the special case of an RTLS according to the locating cycles. After an introduction of the background a general mathematical model
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13

Huang, Yu Song, and Yun Feng Dong. "Optimization of Satellite Momentum Wheel Control System Based on Genetic Programming." Advanced Materials Research 748 (August 2013): 771–78. http://dx.doi.org/10.4028/www.scientific.net/amr.748.771.

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Due to reliability requirements, the reaction wheel actuator of the satellite attitude control system always use traditional control method. For the satellite which has complex structure, it's difficult to build the mathematical model with classical control method. The selection of control parameters is also difficult. The design process last long and the model have poor adaptability when the parameters change. Compare to genetic algorithms, genetic programming which have the capabilities to evolve automatically, have the advantage of being able to optimize the structure of the mathematical mo
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14

Yavich, Roman, Sergey Malev, and Vladimir Rotkin. "Triangle Generator for Online Mathematical E-learning." Higher Education Studies 10, no. 3 (2020): 72. http://dx.doi.org/10.5539/hes.v10n3p72.

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What constitutes learning in the 21st century is the capacity for e-learning. Integral components of e-education are training content management systems. Existing content generators more transform content than create original content. Creating a methodology and technology for generating original content is important and relevant. In order to form adequate methods for generating content, primarily for mathematical and related disciplines, the problem of generating a triangle, together with its many attributes, is considered as the simplest object of elementary mathematics. We create a simulatio
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15

Lee, Ang Wee, Nayef Mohamed Ghasem, and Mohamed Azlan Hussain. "Utilization of Mathematical Software Packages in Chemical Engineering Research." ASEAN Journal of Chemical Engineering 5, no. 2 (2005): 125. http://dx.doi.org/10.22146/ajche.50180.

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Using Fortran taken as the starting point, we are now on the sixth decade of high-level programming applications. Among the programming languages available, computer algebra systems (CAS) appear to be a good choice in chemical engineering can be applied easily. Until the emergence of CAS, the assistance from a specialized group for large-scale programming is justified. Nowadays, it is more effective for the modern chemical engineer to rely on his/her own programming ability for problem solving. In the present paper, the abilities of Polymath, Maple, Matlab, Mathcad, and Mathematica in handling
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16

Cieślewicz, Dobrosław. "Fault Tolerant Traffic Control System Based on Multiobjective Optimization." Pomiary Automatyka Robotyka 24, no. 4 (2020): 11–18. http://dx.doi.org/10.14313/par_238/11.

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The mathematical model is a simplified representation of certain phenomena, which takes into account only the essential features. Nowadays, congested road infrastructures are becoming a growing problem, especially in larger urban centres. This problem can be somewhat reduced by using advanced control algorithms. This article attempts to control the traffic flow on a macroscopic scale. For this purpose, a discrete, nonlinear mathematical model was adopted. Using the MATLAB programming environment, a control system for a small communication network was developed and optimised. Then, assuming a s
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17

Raksha, Serhii, Pavlo Anofriev, and Oleksii Kuropiatnyk. "Simulation modelling of the rolling stock axle test-bench." E3S Web of Conferences 123 (2019): 01032. http://dx.doi.org/10.1051/e3sconf/201912301032.

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Wheelset axles are essential parts of railway and mine site rolling stock. For fatigue testing of axles, various test-benches are designed to implement the cyclic loads. The effectiveness of test-bench vibration analysis grows with the use of numerical approach and simulation models created with the aid of visual programming tools. The purpose of the work is to develop and assess the proposed simulation models of test-bench dynamics created with the aid of visual programming tools. Based on mathematical models, the test-bench simulation models of the lever system vibration have been developed.
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18

Ni, Yi Hua, Hai Guo, Jian Wu, and Jiang Xin Yang. "Structure of Parametric Designing Simulation Platform of Automotive Air Conditioning Condenser." Applied Mechanics and Materials 220-223 (November 2012): 689–92. http://dx.doi.org/10.4028/www.scientific.net/amm.220-223.689.

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The physical and mathematical model of parallel flow automotive air condition condenser was built based on the analysis of its structure and operating characteristics; then the mathematical model was verified and optimized through finite element analysis and running experiments. The VB programming system was used to do Solidworks pro-development and condenser parameterization design module was built. Finally a condenser design and study platform facing to the heat transfer performance and structure with infinite element simulation and numerical simulation was realized.
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19

Iffath, Fariha, A. S. M. Kayes, Md Tahsin Rahman, Jannatul Ferdows, Mohammad Shamsul Arefin, and Md Sabir Hossain. "Online Judging Platform Utilizing Dynamic Plagiarism Detection Facilities." Computers 10, no. 4 (2021): 47. http://dx.doi.org/10.3390/computers10040047.

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A programming contest generally involves the host presenting a set of logical and mathematical problems to the contestants. The contestants are required to write computer programs that are capable of solving these problems. An online judge system is used to automate the judging procedure of the programs that are submitted by the users. Online judges are systems designed for the reliable evaluation of the source codes submitted by the users. Traditional online judging platforms are not ideally suitable for programming labs, as they do not support partial scoring and efficient detection of plagi
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20

Chen, Jing. "The Modelling by Parameter Identification and Online Simulation in Refining." Advanced Materials Research 756-759 (September 2013): 1769–73. http://dx.doi.org/10.4028/www.scientific.net/amr.756-759.1769.

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FCCU (fluid catalytic cracking unit) is a complex system featured by highly non-linear, time variable, long time delay, and close coupling. Studying the process mechanism of FCCU, this paper defines a mathematical model for coupling parameter identification and online simulation. In addition, the author proposes comprehensive tuning technologies for multiple optimization and also systematically describes the cause-effect statistical law for parameter variation based on the input-and-output quantitative relation. The memory, comparison and reasoning of operation experience can help to guide the
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21

Cai, Jie. "Research for Uniformity of Insulation Layer on Communication Cable Online Testing Control System." Advanced Materials Research 1046 (October 2014): 241–45. http://dx.doi.org/10.4028/www.scientific.net/amr.1046.241.

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With the feathered development of communication and networks,the needs for the communication cable is highly increased,while the assurance of the communication cable’s quality is an important work for every cable factory to slove.The major research of this project is aim at the problems about the dynamic testing and the uniformity of cable insulation layer,and then the online test control system were designed.The control is mainly use OMRON's CS1G-H PLC as the central control system, at the same time control system uses touch-screen to realize the man-machine dialogue,which can effectively mon
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22

Fonseca, Daniel Guerra Vale da, André Felipe O. de A. Dantas, Carlos Eduardo Trabuco Dórea, and André Laurindo Maitelli. "Explicit GPC Control Applied to an Approximated Linearized Crane System." Journal of Control Science and Engineering 2019 (February 3, 2019): 1–13. http://dx.doi.org/10.1155/2019/3612634.

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This paper proposes a MIMO Explicit Generalized Predictive Control (EGPC) for minimizing payload oscillation of a Gantry Crane System subject to input and output constraints. In order to control the crane system efficiently, the traditional GPC formulation, based on online Quadratic Programming (QP), is rewritten as a multiparametric quadratic programming problem (mp-QP). An explicit Piecewise Affine (PWA) control law is obtained and holds the same performance as online QP. To test effectiveness, the proposed method is compared with two GPC formulations: one that handle constraints (CGPC) and
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23

Casañ, Gustavo A., and Enric Cervera. "The Experience of the Robot Programming Network Initiative." Journal of Robotics 2018 (June 7, 2018): 1–15. http://dx.doi.org/10.1155/2018/2312984.

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Since its creation in 2014, the Robot Programming Network (RPN) has been an environment to learn and teach robotics to the general public, which has also allowed us to learn about education. In this paper, we aim to not only present the RPN and the active courses in the system but also show the evolution of this initiative in front of the changing e-learning environment and its possible future evolution towards Massive Online Open Courses (MOOCs) and cloud simulation.
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24

Li, Yun Zhi. "Study on the Quantitative Vulnerability Model of Information System Based on Mathematical Modeling Techniques." Applied Mechanics and Materials 651-653 (September 2014): 1953–57. http://dx.doi.org/10.4028/www.scientific.net/amm.651-653.1953.

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The idea of mathematical modeling is used to establish the quantitative model of information system vulnerability assessment, and the model is solved by using the partial differential method. The algorithm is realized by using VB programming, and it obtains the quantitative solution of information system vulnerability. Quantitative assessment of information system security and risk is the difficulty of system vulnerability assessment, and it establishes the risk model of system by means of mathematics modeling idea. The risk model is divided into the actual risk and the potential risk. The pap
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25

Li, Wen Yan, and Ming Zhong Gao. "One Based Magnetic Oxygen Carrier Solid Fuel Chemical Looping Combustion System Simulation." Advanced Materials Research 800 (September 2013): 454–58. http://dx.doi.org/10.4028/www.scientific.net/amr.800.454.

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In this paper, Computational Fluid Dynamics (CFD) was used to simulate the magnetic device for the separation of Fe-base oxygen carrier in chemical-looping combustion system. The simulation was based on the Euler multiphase flow model and the k-ε turbulence model, which uses UDF programming to increase volume source phase. Here, commercial computational fluid dynamics software fluent platform was used to build the air reactor cold flow mathematical model, magnetic field under the conditions of different flow conditions were added for separating the Fe3O4 and Fe2O3. And the simulation results h
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26

Pan, Gong Yu, and Xue Ling Hao. "Research on Active Control of Driver’s Seat Suspension System." Applied Mechanics and Materials 105-107 (September 2011): 701–4. http://dx.doi.org/10.4028/www.scientific.net/amm.105-107.701.

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In order to improve the driver confortness, the 5-DOF analysis mathematical car model with the active seat air-spring suspension system was built. Based on the linear stochastic optimal control theory (LQG), the signal of road’s input as excitation source was used to design the optimal law of this seat active control system. MATLAB simulation programming language was applicated for the response simulation. The results show that the control strategy on the road excitation system has a good applicability on controlling the vibration of the driver’s seat and active seat suspension can more effect
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27

Kovalev, I. S. "MATHEMATICAL AND COMPUTER SIMULATION OF THE COMMERTIAL VEHICLE’S HYDRAULIC RETARDER." Vestnik SibADI 15, no. 3 (2018): 400–411. http://dx.doi.org/10.26518/2071-7296-2018-3-400-411.

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Introduction.The article represents the mathematical model of commercial vehicle’s hydraulic retarder. The model is based on the mathematical model of the variable filling hydraulic dynamometer.Materials and methods.The retarder model was designed with the possibility of its integration with the mathematical model of the engine cooling system. For this purpose, the state function of fluid temperature in a working chamber of the retarder was added to the retarder model. Consequently, fluid compression in the working chamber was included into the model to avoid unlimited filling because of possi
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28

Cevikcan, Emre. "A mathematical programming approach for walking-worker assembly systems." Assembly Automation 34, no. 1 (2014): 56–68. http://dx.doi.org/10.1108/aa-07-2013-067.

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Purpose – It has become increasingly critical to design and maintain flexible and rapid assembly systems due to unpredictable and varying market conditions. The first stage of developing such systems is to restructure the existing assembly system. After designing the manufacturing system, efforts should be made for capacity adjustments to meet the demand in terms of allocating tasks to workers. Walking-worker assembly systems can be regarded as an effective method to achieve flexibility and agility via rabbit chase (RC) approach in which workers follow each other around the assembly cell or li
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29

Li, Chunqing, Zixiang Yang, Yiquan Deng, and Tao Wang. "Multiple Linear Regression Model Based on Neural Network and Its Application in the MBR Simulation." Abstract and Applied Analysis 2012 (2012): 1–18. http://dx.doi.org/10.1155/2012/703153.

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The computer simulation of the membrane bioreactor MBR has become the research focus of the MBR simulation. In order to compensate for the defects, for example, long test period, high cost, invisible equipment seal, and so forth, on the basis of conducting in-depth study of the mathematical model of the MBR, combining with neural network theory, this paper proposed a three-dimensional simulation system for MBR wastewater treatment, with fast speed, high efficiency, and good visualization. The system is researched and developed with the hybrid programming of VC++ programming language and OpenGL
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He, Lin, Xian Feng Zhao, Hong Yan Shi, and Jun Wang. "Research and Development of Four Axis Linkage Grinding Simulation System of Ball-Nose End Mill." Key Engineering Materials 443 (June 2010): 314–17. http://dx.doi.org/10.4028/www.scientific.net/kem.443.314.

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The four axis linkage grinding simulation system of ball-nose end mill has be developed based on the mathematical model of four axis linkage grinding through establishing ball-nose end mill's parametrical database, constructing ball-nose end mill’s and grinding wheel's solid models in Solidworks, simulating the grinding processes of the rake face and flank face of ball-nose end mill based on Boolean operation, and automatic NC programming of rake face and flank face grinding. The results show the grinding simulation system can be used to manufacture ball end mill.
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31

Zhang, Ou, and Xueye Wei. "Online Magnetic Flux Leakage Detection System for Sucker Rod Defects Based on LabVIEW Programming." Computers, Materials & Continua 58, no. 2 (2019): 529–44. http://dx.doi.org/10.32604/cmc.2019.04075.

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Kiss, János Máté, Péter Tamás Szemes, and Petra Aradi. "Sliding mode control of a servo system in LabVIEW: Comparing different control methods." International Review of Applied Sciences and Engineering 12, no. 2 (2021): 201–10. http://dx.doi.org/10.1556/1848.2021.00250.

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AbstractThe main contribution of this paper is to present the efficiency of LabVIEW in simulating and controlling a servo system with conventional methods (PI and PID control), as well as sliding mode control (SMC). The control of an actual system with LabVIEW and NI hardware provides an efficient implementation platform, using both LabVIEW’s graphical programming and the text-based m-file language MathScript RT. Both programming environments and the connection to NI hardware are relatively easy to use, therefore, ideal for education. The graphical “coding” can help novice users to see through
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BONOMI, E., M. FLÜCK, R. GRUBER, et al. "ASTRID: A Programming Environment for Physicists." International Journal of Modern Physics C 02, no. 01 (1991): 21–29. http://dx.doi.org/10.1142/s0129183191000044.

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The purpose of the ASTRID project [1] is to combine the effort of the scientific community in the development of a software system for simulation and modeling of physical phenomena that meets the requirements of the users. This system includes the data management system MEMCOM [2], the ASTRID command language [3], the three-dimensional graphics system VIEW [4], the ASTRID finite element solver [5] and a few utility programs to interface user defined modules to the ASTRID data structure.
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Mesheryakov, Roman, Alexander Moiseev, Anton Demin, Vadim Dorofeev, and Vasily Sorokin. "Using Parallel Computing in Queueing Network Simulation." Key Engineering Materials 685 (February 2016): 943–47. http://dx.doi.org/10.4028/www.scientific.net/kem.685.943.

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The paper is devoted to the simulation of queueing networks on high performance computer clusters. The objective is to develop a mathematical model of queueing network and simulation approach to the modelling of the general network functionality, as well as to provide a software implementation on a high-performance computer cluster. The simulation is based on a discrete-event approach, object oriented programming, and MPI technology. The model of the queueing networks simulation system was developed as an application that allows a user to simulate networks of rather free configuration. The exp
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35

Zhao, Jun, Xian Wang, Guanbin Gao, Jing Na, Hongping Liu, and Fujin Luan. "Online Adaptive Parameter Estimation for Quadrotors." Algorithms 11, no. 11 (2018): 167. http://dx.doi.org/10.3390/a11110167.

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The stability and robustness of quadrotors are always influenced by unknown or immeasurable system parameters. This paper proposes a novel adaptive parameter estimation technology to obtain high-accuracy parameter estimation for quadrotors. A typical mathematical model of quadrotors is first obtained, which can be used for parameter estimation. Then, an expression of the parameter estimation error is derived by introducing a set of auxiliary filtered variables. Moreover, an augmented matrix is constructed based on the obtained auxiliary filtered variables, which is then used to design new adap
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36

Yan, Chao Yong, and Yao Jun Yu. "Application of Single Neuron Adaptive PID Control in Electro-Hydraulic Position Servo System." Advanced Materials Research 542-543 (June 2012): 563–66. http://dx.doi.org/10.4028/www.scientific.net/amr.542-543.563.

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Currently used electro-hydraulic position servo system has more serious non-linear, time-varying parameters and external load disturbance, through the establishment of the system's mathematical model, designed the single neuron adaptive PID controller. Simulation results show that the improved system response speed, steady-state error is small, you can adjust the PID parameters online in real time and good control effect.
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BOUSSINOT, FRÉDÉRIC. "MIMICKING QUANTUM MECHANICS USING REACTIVE PROGRAMMING." International Journal of Modern Physics C 22, no. 06 (2011): 635–48. http://dx.doi.org/10.1142/s0129183111016506.

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We implement in a reactive programming framework a system mimicking three aspects of quantum mechanics: self-interference, state superposition, and entanglement. The system basically consists in a cellular automaton embedded in a synchronous environment which defines global discrete instants and broadcast events. The implementation shows how a simulation of fundamental aspects of quantum mechanics can be obtained from the synchronous parallel combination of a small number of elementary components.
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38

Maheshwari, Rashi. "Smart Traffic Light System." International Journal for Research in Applied Science and Engineering Technology 9, no. 9 (2021): 679–86. http://dx.doi.org/10.22214/ijraset.2021.38053.

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Abstract: Traffic signal control frameworks are generally used to monitor and control the progression of cars through the intersection of roads. Moreover, a portable controller device is designed to solve the issue of emergency vehicles stuck in overcrowded roads. The main objective of this paper is to design and implement a suitable algorithm and its simulation for an intelligent traffic signal simulator. The framework created can detect the presence or nonappearance of vehicles within a specific reach by setting appropriate duration for traffic signals to react accordingly. By employing math
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El Bhih, Amine, Rachid Ghazzali, Soukaina Ben Rhila, Mostafa Rachik, and Adil El Alami Laaroussi. "A Discrete Mathematical Modeling and Optimal Control of the Rumor Propagation in Online Social Network." Discrete Dynamics in Nature and Society 2020 (May 1, 2020): 1–12. http://dx.doi.org/10.1155/2020/4386476.

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In this paper, a new rumor spreading model in social networks has been investigated. We propose a new version primarily based on the cholera model in order to take into account the expert pages specialized in the dissemination of rumors from an existing IRCSS model. In the second part, we recommend an optimal control strategy to fight against the spread of the rumor, and the study aims at characterizing the three optimal controls which minimize the number of spreader users, fake pages, and corresponding costs; theoretically, we have proved the existence of optimal controls, and we have given a
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40

Martínez-Bahena, Beatriz, Marco Cruz-Chávez, Erika Ávila-Melgar, Martín Cruz-Rosales, and Rafael Rivera-Lopez. "Using a Genetic Algorithm with a Mathematical Programming Solver to Optimize a Real Water Distribution System." Water 10, no. 10 (2018): 1318. http://dx.doi.org/10.3390/w10101318.

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This research proposes a genetic algorithm that provides a solution to the problem of deficient distribution of drinking water via the current hydraulic network in the neighborhood “Fraccionamiento Real Montecasino” (FRM), in Huitzilac, Morelos, Mexico. The proposed solution is the addition of new elements to the FRM network. The new elements include storage tanks, pipes, and pressure-reducing valves. To evaluate the constraint satisfaction model of mass and energy conservation, the hydraulic EPANET solver (HES) is used with an optimization model to minimize the total cost of changes in the ne
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41

Chen, Lei, and Pan Zhang. "Simulation on Displacement Characteristics of Variable Displacement of Double-Action Vane Pump." Advanced Materials Research 152-153 (October 2010): 1088–91. http://dx.doi.org/10.4028/www.scientific.net/amr.152-153.1088.

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On of the practical difficulties of high speed automotive hydraulic power steering is that the output exceeds the actual demands of the system, i.e., there is a substantial power loss. This paper discusses the configuration and the action principle of a new variable displacement of double-action vane pump, which consists of floating blocks. The pump belongs to an automotive hydraulic power steering system, and prosperous utilization is expected. In the meantime the mathematical and simulation model for hydraulic power steering of automobile were established and the Matlab Simulink simulation m
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42

Zhang, Shiwei, Yufang Zhu, Baozhen Qiao, and Zhijun Zhang. "System Model of Heat and Mass Transfer Process for Mobile Solvent Vapor Phase Drying Equipment." Mathematical Problems in Engineering 2014 (2014): 1–11. http://dx.doi.org/10.1155/2014/267276.

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The solvent vapor phase drying process is one of the most important processes during the production and maintenance for large oil-immersed power transformer. In this paper, the working principle, system composition, and technological process of mobile solvent vapor phase drying (MVPD) equipment for transformer are introduced in detail. On the basis of necessary simplification and assumption for MVPD equipment and process, a heat and mass transfer mathematical model including 40 mathematical equations is established, which represents completely thermodynamics laws of phase change and transport
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43

Zhuang, Guo Min. "Simulation Environment of Virtual Visualization Technology Based on Apriori Algorithm." Applied Mechanics and Materials 608-609 (October 2014): 1131–35. http://dx.doi.org/10.4028/www.scientific.net/amm.608-609.1131.

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Based on the optimization emergency management legal mechanism of environment emergency, we introduce the Apriori law to the emergencies analysis, and use support degree and confidence degree to improve the Apriori law, so the law has stronger relevance. We use the VC software to programming mathematical model of the law, and use VC source code and engineering design model to design the computer optimization system of environmental emergency management legal mechanism. In order to verify the effectiveness and reliability of the system, we do correlation calculation on legal mechanism before an
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44

Jeang, Angus, and Chien-Ping Chung. "Parameter values for lot size and quality level via CAE simulation, statistical method, and mathematical programming." Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 235, no. 13 (2021): 2189–200. http://dx.doi.org/10.1177/0954405420937870.

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Because of the stochastic nature of production systems, it is necessary to first build an uncertainty model for subsequent real applications. Moreover, process parameter planning, quality design, and production inventory management are interdependent elements. In this research, a computer simulation model via computer-aided engineering (CAE) was developed to determine the optimal process parameters, lot size, and back order intervals for an integrated process design and inventory management system with simultaneous quality and cost considerations. Based on the estimated process time and costs
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45

Alzbutas, R., and V. Janilionis. "THE SIMULATION OF DYNAMIC SYSTEMS USING COMBINED MODELLING." Mathematical Modelling and Analysis 5, no. 1 (2000): 7–17. http://dx.doi.org/10.3846/13926292.2000.9637123.

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The new approach to the problems of dynamic systems simulation is proposed. The analytical and imitation modelling of non‐linear complex dynamic systems which comprise simulation of continuous and discrete processes with constant and variable parameters, are investigated. The aggregate mathematical modelling scheme [1] and the method of control sequences for discrete systems specification and simulation are used as well as the dynamic mathematical modelling scheme for continuous process formalization and modelling. According to them the investigated systems are presented as the set of interact
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46

Giesen, Ricardo, Hani S. Mahmassani, and Patrick Jaillet. "Strategies for Online Inventory Routing Problem under Real-Time Information." Transportation Research Record: Journal of the Transportation Research Board 1923, no. 1 (2005): 164–79. http://dx.doi.org/10.1177/0361198105192300118.

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The inventory routing problem (IRP) under real-time information studied in this paper involves repeated delivery of products from a depot to a set of retailers that face stochastic demands over a long period. This system is controlled by a central decision maker who operates with real-time information about the complete state of the system. To address this online IRP under real-time information, rolling horizon approaches are proposed: plans are updated and solve a mixed integer programming formulation for the off-line version of the problem. In this mixed integer programming formulation, an i
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47

Zheng, Gang, Bin Ma, Zhe Yang, and Ding Liu. "Design of a Semi-Real Simulation Platform for the Cold Rolling Mill." Applied Mechanics and Materials 395-396 (September 2013): 1243–47. http://dx.doi.org/10.4028/www.scientific.net/amm.395-396.1243.

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We designed a semi-real simulation platform for the cold rolling mill that was composed of Simulation Computer, Simulation System of Field Signal, AGC Control System, Console of Rolling Mill and the Main Control Computer, and built the mathematical models in the Simulation Comuter, for the hydraulic servo system, rolling force and thickness of strip material. In the platform, the Simulation System of Field Signal output the simulation data as standard sensor signal; the AGC Control System is the same as that used in real rolling mill system. We simulated the milling process of real rolling mil
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Poltorachenko, Natalia. "SIMULATION OF THE INITIAL STAGE OF ENGINEERING NETWORK DESIGN." Management of Development of Complex Systems, no. 45 (March 1, 2021): 97–101. http://dx.doi.org/10.32347/2412-9933.2021.45.97-101.

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The work contains an analysis of the current state of centralized utilities, which form the basis of engineering networks in the country. The problems actualizing questions of mathematical modeling of system process of designing of new and reconstruction of old engineering networks in the conditions of their perspective development are resulted. The analysis of researches in the field of designing of engineering networks taking into account uncertainty of the information is given. The main material of the article is devoted to the construction of a mathematical model of the problem of distribu
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49

Guo, Quan, Kun Xu, Fang Yi Sun, and Xue Qian Li. "Research on Modeling and Simulation of Power Electronic Circuits Based on MATLAB." Applied Mechanics and Materials 687-691 (November 2014): 3106–9. http://dx.doi.org/10.4028/www.scientific.net/amm.687-691.3106.

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the example of three-phase bridge controlled rectifying circuit discussed the method of the utilization of MATLAB SIMULINK on the modeling and simulation of power electronic circuits, and gave the simulation result waveform, verifying the convenience, intuition, high-efficiency, high speed, genuineness and accuracy of this method. This method can also make modeling and simulation on quite complex circuits, power electronic conversion system, and electric drive automatic control system. The systematic modeling is very similar to the design process of the actual system. Users can get the simulat
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50

Sołbut, Adam. "Squirrel-cage motor drive dynamics modeling including chosen damages - programming tools." Archives of Electrical Engineering 59, no. 3-4 (2010): 113–20. http://dx.doi.org/10.2478/s10171-010-0009-9.

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Squirrel-cage motor drive dynamics modeling including chosen damages - programming tools Description of program tools simplifying simulation applications building for physical phenomenons described by differential equations in state equations form modeling is presented in the paper. A method for using prepared libraries for squirrel-cage motors including any motor damages modeling had been described. For that purpose, squirrel-cage motor mathematical model in natural coordinates system had been presented. Presented solutions provide also supply sources (inverters) modeling, including their mic
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