Open Access. Powered by Scholars. Published by Universities.®

Systems Science Commons™

Open Access. Powered by Scholars. Published by Universities.®

2020

Discipline
Institution
Keyword
Publication
Publication Type

Articles 691 - 720 of 1494

Full-Text Articles in Systems Science

Sliding Parameters Calculation Of Agricultural Tracked Robot Based On Ukf And Smo, Jiao Jun, Kong Wen, Lichuan Gu, Wang Qiang, Ya Gao, Chenchen Yuan Jul 2020

Sliding Parameters Calculation Of Agricultural Tracked Robot Based On Ukf And Smo, Jiao Jun, Kong Wen, Lichuan Gu, Wang Qiang, Ya Gao, Chenchen Yuan

Journal of System Simulation

Abstract: In order to make ensure an Agricultural Tracked Robot (ATR) stable driving in farmland and reduce the slip phenomenon parameters, a novel sliding parameters estimation scheme of ATR based on UKF (Unscented Kalman Filter) and SMO (Sliding Mode Observer) was proposed. The motion equation and measurement equation of ATR were fused by UKF to compensate the measurement error from sensors and to reconstruct the precision pose parameters of ATR. Three slip parameter observers were designed for the sideslip angle, left and right track slip rate, which used the tangent function was used as the switching function to cover chattering …

Go to article

Perception Factors Analysis Of Command Information Process Based On System Dynamics, Pubing Shen, Gao Kai, Weiwei Zhao Jul 2020

Perception Factors Analysis Of Command Information Process Based On System Dynamics, Pubing Shen, Gao Kai, Weiwei Zhao

Journal of System Simulation

Abstract: The major aspects of operational command processes were investigated and the key factors that influenced the operation process were analyzed. The confront model of command information process was constructed based on Information Age Combat Model (IACM) by the system dynamics theory and modeling methods. Through the experiment, major factors of perceptual element in the model were simulated and statistically analyzed. An inverse linear relationship of attack forces in both sides was found to be existed. These were verified by the experiment and combat capacity could be improved by increasing the number of perception nodes and rate of information collection …

Go to article

Experiment Platform For Pure Electric Vehicles And Bi-Directional Power Conversion, Shaojian Song, Qingfang Lin, Xiaofeng Lin Jul 2020

Experiment Platform For Pure Electric Vehicles And Bi-Directional Power Conversion, Shaojian Song, Qingfang Lin, Xiaofeng Lin

Journal of System Simulation

Abstract: As the energy consumption and environmental pollution brought by traditional internal combustion engine vehicles, the experimental platform for pure electric vehicle research is scarce, and most of the research uses virtual vehicle simulation software, which is difficult to accurately reflect the real vehicle system. An experiment platform for LiFePO4 Battery pack (the main energy source) and ultra-capacitor (the auxiliary energy source) hybrid pure electric vehicles and bi-directional power conversion was introduced. The test results show that the introduced experimental platform can be performance test for the key components of pure electric vehicle and energy management, running under …

Go to article

Estimation Of Contamination Source By Using Qpso With Perturbation Operator, Tian Na, Zhicheng Ji Jul 2020

Estimation Of Contamination Source By Using Qpso With Perturbation Operator, Tian Na, Zhicheng Ji

Journal of System Simulation

Abstract: An improved quantum-behaved particle swarm optimization (QPSO) with perturbation operator was proposed and applied to solve the convection-diffusion inverse problem of estimating time-varying contamination source. Because the contamination source is time-dependent, the inverse problems are classified into function estimation problem. To transform the inverse problem to optimization problem, the nonlinear least square method was used. Meanwhile, Tikhonov regularization was used to stablize the solution with noisy measured data. And the regularization parameter was chosen by L-curve method. The simulation results tell that QPSO with perturbation operator outperforms QPSO and PSO. Moreover, tests over different views (regularization terms, noise level, …

Go to article

Implementation And Application Of Coordinate Stretched Pml Under Two-Dimensional Cylindrical Coordinate, Anshi Zhu, Zili Chen, Yang Yong, Yunhui Zhen Jul 2020

Implementation And Application Of Coordinate Stretched Pml Under Two-Dimensional Cylindrical Coordinate, Anshi Zhu, Zili Chen, Yang Yong, Yunhui Zhen

Journal of System Simulation

Abstract: According to the numerical calculation of electromagnetic field under cylindrical coordinate, the conventional split field absorbing boundary is no longer applicable. The coordinate stretched perfectly matched layers (CS-PML) were applied in the two-dimensional stretched cylindrical coordinate system. The updating equations of Maxwell curl equations in CS-PML were derived by using auxiliary equation method. The simulation results show that theoretical derivation is correct. The reflection coefficient of CS-PML is less than -30 dB, and it is able to meet the precision demand of numerical calculation. Besides, the CS-PML was adopted to investigate the radiation characteristic of the …

Go to article

Simulation Of Converter Torsional Vibration Based On Multi-Body Dynamics, Hongbin Liu, Yongsheng Shi, Zhang Lei, Hongbiao Han Jul 2020

Simulation Of Converter Torsional Vibration Based On Multi-Body Dynamics, Hongbin Liu, Yongsheng Shi, Zhang Lei, Hongbiao Han

Journal of System Simulation

Abstract: Torsional vibration of large converter is very easy to cause the transmission gear failure. In order to solve large converters' torsional vibration during working, a converter multi-body dynamic analysis model on rigid-flexible coupling method was built by using of multi-body dynamics simulation software RecurDyn and the finite element analysis software ANSYS. And the dynamic simulation study of this model was carried out. The effects of torsional vibration by different parking methods, parking times, the converters' vibration frequency and the amplitude were obtained through the dynamics simulation calculation. The results show that the torsional vibration amplitude of converter can …

Go to article

Review On Modeling And Simulation Of Critical Infrastructures, Baoliang Xiao, Mingzhi Zhang, Xiaoyuan He Jul 2020

Review On Modeling And Simulation Of Critical Infrastructures, Baoliang Xiao, Mingzhi Zhang, Xiaoyuan He

Journal of System Simulation

Abstract: Economic prosperity, national security and society well-being have long depended on the important services that some critical infrastructures are provided. The safety of the critical infrastructures is vital for the normal operation of the country. On the basis of research on the connotation of critical infrastructure to different nation in different historical period, the definition, classification and model of interdependencies among critical infrastructures were analyzed. The principal modeling and simulation techniques of critical infrastructure and their merits and drawbacks were summarized. The significant protection projection s and tools were analyzed and researched. Depending on all above studies, knowing …

Go to article

Study On Theory Of Scale Model Simulation Of Light Wave-Microwave System On Inequality Electrical Length Conditions, He Jing, Miao Qiang, Qifan Zhao Jul 2020

Study On Theory Of Scale Model Simulation Of Light Wave-Microwave System On Inequality Electrical Length Conditions, He Jing, Miao Qiang, Qifan Zhao

Journal of System Simulation

Abstract: Light wave model measurement microwave system at big scale factor on inequality electrical length conditions was proposed. The analysis idea of such model measurement was put forward. The feasibility of simulating electromagnetic scattering at microwave band using optic wave was discussed from the angle of physical similitude and technological feasibility. Then according to this idea, the similitude relationship and conditions in the application such as RCS measurement and multipath effect measurement were analyzed in detail on inequality electrical length conditions model measurement. The research result offers a new research approach in the field of large scale electromagnetic system simulation.

Go to article

Fire Reconstruction Method Based On Les And Linear Programming, Guangyao Yao, Peizhong Yang, Tan Xun Jul 2020

Fire Reconstruction Method Based On Les And Linear Programming, Guangyao Yao, Peizhong Yang, Tan Xun

Journal of System Simulation

Abstract: A method based on LES and linear programming was proposed for the numerical construction of fire accident. In the simulation with LES method, all the quantities were decomposed into large-scale components and small-scale components. For large-scale components, the direct simulation method was used. For small-scale components, the subgrid model was used. The LES method could improve the simulation accuracy. In the linear programming method, the parameters were locally linearized to solve the optimization problem. It could improve the simulation efficiency. The method was applied to the numerical reconstruction of a wholesale market fire in Shanghai. The spread of fire …

Go to article

Compressed-Sensing Based Up-Sampling Method For Fluid Simulation, Yijing Qian, Xubo Yang Jul 2020

Compressed-Sensing Based Up-Sampling Method For Fluid Simulation, Yijing Qian, Xubo Yang

Journal of System Simulation

Abstract: In computer fluid animation, the grid-based Euler method is a well-matured and effective way of simulating fluids, but a key bottleneck of Euler method is that it is limited to the traditional Nyquist-Shannon sampling theorem in sampling step. So it cannot effectively reduce the massive data and computing of the large-scale flow fields. In order to solve this problem, compressed sensing theory was used to probe a way to break through the limitation of the sampling theorem in fluid simulation. The sparsity and compressibility of fluid data were explored, then applicable sampling function, compressive basis and reconstruction algorithm for …

Go to article

Modeling Research On Dynamic Pressure Distribution Of Pilot Body In Maneuver Flight, Liu Gang, Yunpu Wang, Hongwei Chi, Hongyin Yuan Jul 2020

Modeling Research On Dynamic Pressure Distribution Of Pilot Body In Maneuver Flight, Liu Gang, Yunpu Wang, Hongwei Chi, Hongyin Yuan

Journal of System Simulation

Abstract: Relationship between dynamic surface forces distribution of pilot body and flight load in maneuver flight was studied. Dynamic surface pressure and shear distribution of pilot body seated posture were expressed by setting up dynamic pressure factor and dynamic shear factor. Flight kinetic equations of pilot body seated posture were established. In the equations, relationship between pilot body inertia forces and dynamic surface forces were given, and the equations are square nonlinear for dynamic pressure factor and shear factor. Finally an example for climbing turn maneuver flight of some aircraft was done, dynamic surface forces distribution of pilot …

Go to article

Finite Element Simulation Of Machining 7075 Aluminum Alloy Based On Advantedge And Corresponding Experimental Study, Yusong Liao, Han Jiang Jul 2020

Finite Element Simulation Of Machining 7075 Aluminum Alloy Based On Advantedge And Corresponding Experimental Study, Yusong Liao, Han Jiang

Journal of System Simulation

Abstract: Abstract: The finite element simulation of cutting 7050 aluminum alloy was carried out based on the software of AdvantEdge, and Johnson-Cook constitutive model was chosen for the workpiece material in the model. The parameters for the constitutive model were obtained through the Hopkinson experiment. The cutting forces and surface qualities were observed through different cutting velocities and cutting depths. The cutting velocity and cutting depth were optimized, and the experiment was carried out with the guidance of the simulation results. The machined workpiece obtained from the experiment shows that the optimized cutting parameters can improve the machined surface property …

Go to article

Study On Operation Mechanism Of Mixed Closed Loop Transportation Network With Exponential Queues, Li Bing, Xuan Hua, Li Jing Jul 2020

Study On Operation Mechanism Of Mixed Closed Loop Transportation Network With Exponential Queues, Li Bing, Xuan Hua, Li Jing

Journal of System Simulation

Abstract: Mixed transport queuing network is composed of single route station road and multiple route station as parallel and series form. Two random variables to denote respectively time interval of vehicle arriving freight station and the service time of these handling platforms in freight station obeyed negative exponential distribution. The closed mixed transportation queuing network was simulated using SimEvents module in Matlab software. The dynamic changes of the queue length and waiting time in freight station were analyzed. Then vehicle distribution in mixed closed loop transportation network was analyzed. The formulation to compute vehicle distribution probability in steady state was …

Go to article

Simulation Research On Cantilever Piezoelectric Generator With Mass, Yan Zhen, He Qing, Dongping Wang Jul 2020

Simulation Research On Cantilever Piezoelectric Generator With Mass, Yan Zhen, He Qing, Dongping Wang

Journal of System Simulation

Abstract: Piezoelectric vibration generator made in MEMS can supply infinitely and continuously energy for low power electronic devices. In order to improve the adaptive capacity to environment of cantilever piezoelectric vibration generator, through the finite element simulation and experimental study, effect law of additional mass on the natural frequencies and output voltage was analyzed. Results show that, as the mass increases, natural frequency of the piezoelectric beam decreases monotonically, while relative displacement of the end monotonically increases; in the same incentive environment, output voltage of piezoelectric beam with close to the natural frequency and same to the end amplitude are …

Go to article

Study On Lane Keeping Performance With Electric Power Steering System, Sun Tao, Zhengjin Xu, Songlin Zheng, Zhendong Zhang, Yuedong Sun Jul 2020

Study On Lane Keeping Performance With Electric Power Steering System, Sun Tao, Zhengjin Xu, Songlin Zheng, Zhendong Zhang, Yuedong Sun

Journal of System Simulation

Abstract: With consideration of the characteristics of Electric Power Steering system (EPS), vehicle lane keeping system can make full use of EPS function as steering actuator for lane following assist. A couple of vehicle dynamic equations were derived for two operational modes including steering assistant mode and active steering mode. Meanwhile, vehicle single track handling model, nonlinear tire model, driver model, EPS model and corresponding optimal lane tracking algorithm were built and developed respectively. The lane keeping algorithm with EPS actuator was validated by virtue driver-in-the-loop approach based on the EPS experimental map from a certain type of …

Go to article

Robust Coordinated Motion Control Of Free-Floating Space Robot With Flexible-Link And Flexible-Joints, Xiaoyan Yu, Chen Li Jul 2020

Robust Coordinated Motion Control Of Free-Floating Space Robot With Flexible-Link And Flexible-Joints, Xiaoyan Yu, Chen Li

Journal of System Simulation

Abstract: Robust coordinated motion control and vibration hierarchical suppression of a free-floating space robot with one flexible link and two elastic revolute joints was proposed. The dynamical Lagrange equation was established by the momentum conservation. A singularly perturbed model was formulated, which consists of a slow subsystem and two fast subsystems. Based on the singularly perturbed model, a reduced-order controller was proposed, which consists of a robust slow control component and two fast control components. The virtue of this control scheme is that the linear position, linear velocity, linear acceleration of the base needn’t be measured directly. …

Go to article

Modeling And Simulation For Ultra Supercritical Units Load Regulation By Condensate Throttling, Junjie Gu, Wang Peng Jul 2020

Modeling And Simulation For Ultra Supercritical Units Load Regulation By Condensate Throttling, Junjie Gu, Wang Peng

Journal of System Simulation

Abstract: Dynamic model of the condensate flow and load of ultra supercritical units was given. Reasonable inference and simplified were made by the conservation of volume, conservation of mass and conservation of energy and dynamic model of the condensate flow and load of supercritical units was offered, which could provide theoretical basis for the implement of the power plant condensate throttling and load control. Taking a 1000 MW ultra supercritical unit as an example, simulation of the model was made and compared. Results show that the gain coefficient and the time constant of the transfer function of the condensate …

Go to article

Signal Denoising Method Based On Atom Curve Fitting Improved Dictionary Learning, Gao Bo, Wang Jun, Gege Zhang Jul 2020

Signal Denoising Method Based On Atom Curve Fitting Improved Dictionary Learning, Gao Bo, Wang Jun, Gege Zhang

Journal of System Simulation

Abstract: In signal denoising problems, using K-SVD and other classic dictionary learning algorithm can not effectively eliminate the noise impact. The method made some amendments for classical dictionary learning by applying nonlinear least squares curve fitting and particle swarm optimization. K-SVD algorithm was used to train the dictionary. Nonlinear least-squares approach was used to fit every atom in the dictionary. Particle swarm optimization method was used to solve the sparse representation of the signal. The reconstructed signal was obtained. The experimental results show that, the denoising effects of the proposed method apparently has increased compared with K-SVD and RLS-DLA.

Go to article

Simulation Study On Scheduling Strategy Of Dynamic Vehicle Routing Problem, Ning Tao, Guo Chen, Chen Rong, Jin Hua Jul 2020

Simulation Study On Scheduling Strategy Of Dynamic Vehicle Routing Problem, Ning Tao, Guo Chen, Chen Rong, Jin Hua

Journal of System Simulation

Abstract: For the purpose of solving the rescheduling of dynamic vehicle routing problem, the simulation model was established to minimize the cost and optimize the stability. The method of double chains structure coding was proposed. An improved hybrid multi-phases quantum particle swarm algorithm was proposed. An AHP (Analytic hierarchy process strategy) was introduced to obtain the optimal strategy from the Pareto solution. A novel method was applied to a dynamic simulation and the result of comparing with other classical algorithms verifies its effectiveness.

Go to article

Protocol Algorithm Design Of Location Privacy Preserving For Sink Node Based On Security Area, Peiyu Li, Zhixue Zhang Jul 2020

Protocol Algorithm Design Of Location Privacy Preserving For Sink Node Based On Security Area, Peiyu Li, Zhixue Zhang

Journal of System Simulation

Abstract: In view of problems appear in location privacy protection for sink node of wireless sensor networks, a location privacy preserving routing algorithm for sink node based on security area was proposed. This protocol protected location privacy of sink node through methods such as sending real package or fake package probabilistic from safe area to unsafe area and forming a circular sink area around the sink node. Performance evaluation was compared between this proposed dynamic routing algorithm and existing one. Network simulation results show that the routing algorithm has advantages such as low energy consumption, small network delay, and …

Go to article

Energy Saving Control Research On Mine Drainage System Based On Model Predictive Control, Zhiling Ren, Jiahao Han Jul 2020

Energy Saving Control Research On Mine Drainage System Based On Model Predictive Control, Zhiling Ren, Jiahao Han

Journal of System Simulation

Abstract: Grey model of water inflow in tunnel and time with measuring data and economic model was established after analysis for energy conservation issue of mine drainage system. Using model predictive control, a coal mines pumping water pump scheduling in non-peak periods was establish, executing the simulation of the gray model based on model predictive control and predicting the water inflow at times of peak demand in morning and evening. A load shifting schedule for system was formulated. The result show that the pump scheduling established in non-peak periods based on model predictive control can reduce the cost of electricity …

Go to article

Building Arc-Sprial Search Models Of Dipping Sonar Based On Transcendental Target Moving Course, Wu Min Jul 2020

Building Arc-Sprial Search Models Of Dipping Sonar Based On Transcendental Target Moving Course, Wu Min

Journal of System Simulation

Abstract: Based on the known probable moving course of submarine targets, and the actual searching process of anti-submarine airplane, to search the target in the finite domain, the wind factor to affect searching process was analyzed. The arc-spiral searching model of dipping sonar and submarine moving models were built. In the factor of given ocean environments, the experimental results simulated and analyzed the arc-spiral searching course of dipping sonar. The experimentation compared and analyzed the influence of searching probabilities on curve searching, sector searching, and arc-spiral searching manners. The experimental results indicate that the searching probability of arc-spiral searching …

Go to article

Numerical Simulation And Experimental Study Of Three-Dimensional Flow Field On Roots-Type Power Machine Based On Dynamic Mesh Technique, Yanjun Xiao, Yuxiang Liu, Dayuan Wang, Feng Hua, Chunxia Li Jul 2020

Numerical Simulation And Experimental Study Of Three-Dimensional Flow Field On Roots-Type Power Machine Based On Dynamic Mesh Technique, Yanjun Xiao, Yuxiang Liu, Dayuan Wang, Feng Hua, Chunxia Li

Journal of System Simulation

Abstract: A new roots-type power machine was recommended. As for it, the working fluid of low pressure waste heat according was simulated to both the different operating conditions and the different intake and exhaust pressure and flow, and the changing process of internal flow field over time period using dynamic mesh technique was simulated when the power machine was in rotating work. The pressure field, velocity field and mass flow rate with the simulation results were analyzed, thus reaching the optimum operating conditions and the key parameters of the roots-type power machine. A test platform and conducted field tests was …

Go to article

Autonomous Flight Control And Simulation Study Of Independent Developed Soft-Wing Uav, Juntong Qi, Jinda Liu, Shang Hong, Liying Yang, Mei Sen, Jianda Han Jul 2020

Autonomous Flight Control And Simulation Study Of Independent Developed Soft-Wing Uav, Juntong Qi, Jinda Liu, Shang Hong, Liying Yang, Mei Sen, Jianda Han

Journal of System Simulation

Abstract: Soft-wing UAV is composed of ram air parafoil hanging powered vehicle with ropes. The special structure of soft-wing UAV makes it possess apparent mass, flexible structure and relative motions, which are the difficulties of modeling and controlling of soft-wing UAV. Autonomous flight controller design method based on mathematical model can low-costly and high-efficiently achieve control algorithms for UAV. Based on the physical parameters of the self-designed soft-wing UAV, a 6 DOF mathematical model was built. A flight controller and visual simulation system was designed. By using the trajectory points simulation, the numerical and visual simulation was synchronously realized which …

Go to article

Research On Damage Ratio Considering Target-Location Error, Xieen Song, Weidong Song, Ma Qian Jul 2020

Research On Damage Ratio Considering Target-Location Error, Xieen Song, Weidong Song, Ma Qian

Journal of System Simulation

Abstract: Different computing methods for target-location error have much influence on the result of cluster target damage ratio. In order to find a suitable method, based on existing damage ratio analytical method and error combination method, several new ideas, such as error synthesis method, random target method, were proposed. By analyzing specific examples and comparing the results, the accuracy and application conditions for each method were reached. Random target method was proved to be the best on the whole; error combination method was optimal when it could meet the conditions of analytical method and data error combination; target-location …

Go to article

Simulation Method Of Ultrasonic Signal Echo From Measured Liquid Level, Li Peng, Xiaolong Shen, Qian Yin Jul 2020

Simulation Method Of Ultrasonic Signal Echo From Measured Liquid Level, Li Peng, Xiaolong Shen, Qian Yin

Journal of System Simulation

Abstract: Based on the ultrasonic wave scattering theory, a simulation method for the ultrasonic signal echo from liquid level was proposed. According to the fluid boundary-layer theory, the liquid level was divided into a four-layer structure, including liquid phase, gas phase, and liquid and gas stagnant layer. Furthermore, every phase was divided into lots of small scatters, and their scattering intensity was set on the basis of the concentration of water molecule. Thus, the echo signal was the sum of reflecting signals from all scatters. Besides, the simulated signal was compared with the real one with the same system parameter …

Go to article

Ontology Based Devs Modeling Method, Rong Gang, Xiao Jun, Yunping Hu, Yiping Feng Jul 2020

Ontology Based Devs Modeling Method, Rong Gang, Xiao Jun, Yunping Hu, Yiping Feng

Journal of System Simulation

Abstract: In the field of modeling and simulation, it’s difficult to reuse the models because the models and simulation system are coupled seriously. The Ontology-driven modeling theory is a simulation modeling methodology for model reuse. A new DEVS modeling method was proposed based on this theory. The DEVS modeling ontology DEVSMO was built and the DEVS model could be described as the instance of the DEVSMO. This form of DEVS model was independent of the DEVS simulation environment, which improved the model reusability. A tool was developed to translate the DEVSMO instance to DEVS executable models to verify the …

Go to article

Simulation Research On Impact Of Consumer Bounded Rationality On Optimal Pricing Strategy In Supply Chain, Li Feng, Wei Ying Jul 2020

Simulation Research On Impact Of Consumer Bounded Rationality On Optimal Pricing Strategy In Supply Chain, Li Feng, Wei Ying

Journal of System Simulation

Abstract: Noticing increasing market responses to online sales channel, the impact of bounded rationality of consumer on pricing strategy was studied in a dual-channel supply chain system, which consists of one manufacturer and one retailer. A multiple-agent based modeling and simulation approach was proposed and employed. In a Stackelberg game setting with the manufacturer the leader, optimal pricing decisions were calculated from the simulation model. Impacts of consumer behavior parameters on channel prices and sales revenue were analyzed, i.e., degree of consumer bounded rationality, consumer’s acceptance of online channel, as well as consumer’s valuation distribution to the product. Results …

Go to article

Modeling And Scheduling Of Reentrant Automatic Assembly Equipment Based On Cpn Tools, Zhang Mei, Guangsen Chen, You Jia Jul 2020

Modeling And Scheduling Of Reentrant Automatic Assembly Equipment Based On Cpn Tools, Zhang Mei, Guangsen Chen, You Jia

Journal of System Simulation

Abstract: The idea about treating automatic immunoassay detection equipment as a reentrant dual-armed automatic assembly equipment was brought forward. Using timed colored Petri nets (TCPN) to model the equipment according to its detection, the performance of model and simulation experiment were evaluated. To optimize the detection process, DPC dynamic feeding strategy and LSPON, FIFO scheduling strategy were designed. Based on that, a hybrid control strategy was proposed to schedule the model more efficiently. Batch-detecting projects of different scale examples were scheduled on the platform of CPN tools according to the strategies above. The simulation results illustrate the reasonability and feasibility …

Go to article

Improved Quantum-Behaved Particle Swarm Optimization For Solving Multi-Objective Flexible Job-Shop Scheduling Problems, Tian Na, Zhicheng Ji Jul 2020

Improved Quantum-Behaved Particle Swarm Optimization For Solving Multi-Objective Flexible Job-Shop Scheduling Problems, Tian Na, Zhicheng Ji

Journal of System Simulation

Abstract: Due to the complexity of flexible job-shop scheduling problem (FJSP), it is still the hot topic for research. FJSP was given deep insight into with three objectives to be minimized simultaneously: makespan, maximal machine workload and total workload. Quantum-behaved particle swarm optimization (QPSO) with different coefficient selection methods was compared. The benchmark function tests show that QPSO with adaptive coefficient outperforms other selection methods in unimodal functions, while QPSO with cosine coefficient performs better in multi-modal functions. Therefore, QPSO with cosine decreasing coefficient is adopted to solve the multi-objective FJSP, which is a complex multi-modal optimization problem. Simulation results …

Go to article

First Prev Next Last