Open Access. Powered by Scholars. Published by Universities.®
Operations Research, Systems Engineering and Industrial Engineering Commons™
Open Access. Powered by Scholars. Published by Universities.®
- Institution
-
- China Simulation Federation (3880)
- California State University, San Bernardino (111)
- Old Dominion University (28)
- Tashkent State Technical University (16)
- University of Nebraska - Lincoln (14)
-
- Association of Arab Universities (12)
- Embry-Riddle Aeronautical University (12)
- Morehead State University (9)
- California Polytechnic State University, San Luis Obispo (8)
- Johnson & Wales University (7)
- University of South Florida (7)
- Purdue University (6)
- Georgia Southern University (5)
- Louisiana State University (5)
- University of Arkansas, Fayetteville (5)
- San Jose State University (4)
- City University of New York (CUNY) (3)
- Dakota State University (3)
- Liberty University (3)
- Loyola University Chicago (3)
- Portland State University (3)
- University of Texas at El Paso (3)
- Wayne State University (3)
- West Virginia University (3)
- Air Force Institute of Technology (2)
- American University in Cairo (2)
- Clemson University (2)
- Kennesaw State University (2)
- Michigan Technological University (2)
- Singapore Management University (2)
- Keyword
-
- Simulation (139)
- Path planning (77)
- Deep learning (48)
- Genetic algorithm (48)
- Numerical simulation (44)
-
- Virtual reality (43)
- Digital twin (42)
- Modeling and simulation (39)
- Multi-objective optimization (39)
- Reinforcement learning (36)
- Particle swarm optimization (35)
- Modeling (33)
- Deep reinforcement learning (29)
- Fault diagnosis (29)
- UAV (29)
- Attention mechanism (28)
- Neural network (25)
- Simulation model (25)
- Optimization (23)
- Complex network (22)
- System simulation (22)
- System dynamics (21)
- Visualization (21)
- Virtual simulation (20)
- DRL (19)
- Machine learning (19)
- Multi-agent (18)
- Scheduling (18)
- Trajectory planning (18)
- Traffic simulation (17)
- Publication Year
- Publication
-
- Journal of System Simulation (3880)
- Journal of International Technology and Information Management (111)
- Chemical Technology, Control and Management (15)
- Morehead State Theses and Dissertations (9)
- Engineering Management & Systems Engineering Faculty Publications (8)
-
- Engineering Studies Faculty Publications and Creative Works (7)
- Future Computing and Informatics Journal (7)
- College of Graduate Studies: Theses & Dissertations (5)
- Engineering Management & Systems Engineering Theses & Dissertations (5)
- Future Engineering Journal (5)
- Theses and Dissertations (5)
- VMASC Publications (5)
- Doctoral Dissertations and Master's Theses (4)
- Electrical & Computer Engineering Theses & Dissertations (4)
- Faculty Publications (4)
- School of Computing: Faculty Publications (4)
- Computer Science: Faculty Publications and Other Works (3)
- Graduate Theses, Dissertations, and Problem Reports (ETD) (3)
- Industrial Engineering Undergraduate Honors Theses (3)
- LSU Master's Theses (3)
- Military Cyber Affairs (3)
- Open Access Theses & Dissertations (3)
- USF Tampa Graduate Theses and Dissertations (3)
- All Dissertations (2)
- Branch Mathematics and Statistics Faculty and Staff Publications (2)
- Computer Engineering (2)
- Discovery Day - Daytona Beach (2)
- Dissertations (2)
- Dissertations and Theses (2)
- Dissertations and Theses @ UNI (2)
- Publication Type
- File Type
Articles 3271 - 3300 of 4209
Full-Text Articles in Operations Research, Systems Engineering and Industrial Engineering
Optimization Simulation Analysis Of Process Parameters On Sunroof Roller Hemming Quality Of Car, Haijiang Liu, Qingqing Xu, Tang Da
Optimization Simulation Analysis Of Process Parameters On Sunroof Roller Hemming Quality Of Car, Haijiang Liu, Qingqing Xu, Tang Da
Journal of System Simulation
Abstract: In order to solve the problems of car creep or roll-in and grow or roll-out and wave wrinkling defects in the process of sunroof roller hemming, two quantitative indicators of roller hemming—“coefficient of wave wrinkling” T and “coefficient of creep or roll-in and grow or roll-out” D were put forward in terms of the flange height, roll diameter and distance of TCP-RTP (tool center point-robot target point); a simulation experiment was designed based on orthogonal test; and a finite element model was established. By analyzing the simulation experiment data, the weights and trends of the influence factors on …
Simulation Of Helicopter Anti-Submarine Route Planning, Zhu Zhi, Yonglin Lei, Yifan Zhu
Simulation Of Helicopter Anti-Submarine Route Planning, Zhu Zhi, Yonglin Lei, Yifan Zhu
Journal of System Simulation
Abstract: Simulation of helicopter anti-submarine tactics not only requires pure theory analysis, but also needs an efficient simulation system support. Current anti-submarine tactics in the search phase include the use of dipping sonar and sonobuoys. A simulation case is designed based on equipment on service; the evaluation of above tactics on helix square, parallel round, and line spread using dipping sonar is presented. The tactics on the circle, square, and triangle using sonobuoys are evaluated as well. It shows that the proposed method can improve the efficiency of simulation application development, so as to meet the requirements of simulation-based military …
Surgery Simulation Of Internal Fixation For Compression Fractures, Xie Cui, Junmei Geng, Li Jian, Junyu Dong
Surgery Simulation Of Internal Fixation For Compression Fractures, Xie Cui, Junmei Geng, Li Jian, Junyu Dong
Journal of System Simulation
Abstract: Virtual surgery simulation provides new means for medical surgery training with realism and immersion. A virtual surgery simulation of internal fixation for compression fractures is designed and implemented. By constructing 3D surgical scene, making deformation animation, adopting multi-level colliders combination and switching method for collision detection, and designing a multi-factors force feedback model to compute the tactile force and mapping the values to the different levels of vibration intensity of the HTC handle, combining with voice guidance and UI visual feedback, a visual, audible and tactile multi-channel surgical experience can be obtained. The system provides a guiding training module …
Pulse Signal Detection Based On Dual Extended Duffing Oscillators, Wenmao Luo
Pulse Signal Detection Based On Dual Extended Duffing Oscillators, Wenmao Luo
Journal of System Simulation
Abstract: Because the chaotic oscillator can detect signal under lower SNR than the usual signal detection methods, it has been widely studied. In order to extend the application range of the existing chaotic oscillator to aperiodic pulse signal detection, a detection method based on dual Duffing oscillator is proposed. The method uses the difference between the state variables of two generalized time scale Duffing oscillators to detect signal. By selecting the system parameters rationally, the method can detect aperiodic square pulse while the SNR is as low as -30 dB, and detect signals at lower SNR than existing methods. …
Study On Simulation Technology Of Bi-/Multistatic Sar Radio Echo, Liu Jin, Zhe Liu, Ni Hong, Qingchang Tao
Study On Simulation Technology Of Bi-/Multistatic Sar Radio Echo, Liu Jin, Zhe Liu, Ni Hong, Qingchang Tao
Journal of System Simulation
Abstract: A real-time bi-/multistatic synthetic aperture radar (SAR) radio frequency signal simulation method for three-dimensional scene target is proposed. This method divides scene map with 5*5m resolution and presets ackscattering-coefficient. According to the flight path and geometrical model, the key parameters such as the range between SAR and target and the weighting coefficient of the antenna pattern can be calculated. Then, the real-time simulation of bi-/multistatic SAR echo signal is realized in complex scenes by utilizing fast time-domain convolution. The validity of the method is proved by simulation.
Gpr Modeling Method Based On Kernel Slow Feature Analysis And Time Delay Estimation, Huilai Peng, Weili Xiong
Gpr Modeling Method Based On Kernel Slow Feature Analysis And Time Delay Estimation, Huilai Peng, Weili Xiong
Journal of System Simulation
Abstract: A Gaussian process regression modeling method based on kernel slow feature analysis is proposed to deal with the time delay and nonlinear characteristics in industrial processes. The time delay in the industrial data is effectively extracted by fuzzy curve analysis and the optimal time-delay in the data is obtained. The model data is reconstructed based on the optimal delay. The method of kernel slow feature analysis is used to extract the nonlinear features of the reconstructed data. The Gaussian process regression model is established based on the extracted features. The effectiveness and performance of the method are verified by …
Gi-Map Tree: Global Illumination Collaborative Real-Time Rendering In Web3d Dynamic Scene, Liu Chang, Jinyuan Jia, Yifan Lu, Zhang Qian, Zhao Lei
Gi-Map Tree: Global Illumination Collaborative Real-Time Rendering In Web3d Dynamic Scene, Liu Chang, Jinyuan Jia, Yifan Lu, Zhang Qian, Zhao Lei
Journal of System Simulation
Abstract: For the dynamic illumination in web-based virtual reality environment, an interactive real-time rendering mechanism that integrates pre-storage, scheduling and optimization based on a collaborative real-time rendering system. The mechanism helps the rendering system to construct a viewpoint-based pre-storage structure, “GI map tree”, to save and organize illumination rendering information on cloud server. With the assist of “GI map tree” and the user's input behavior, a “heat”-based GI map group scheduling algorithm is proposed to improve the transmission efficiency of the rendering system in this mechanism. The experiment results of Web3D application in the Web environment show that the …
Simulation Research On Operation Effect Of Vav Air-Conditioning System With Variable Water Temperature Strategy, Qinglong Meng, Zhibo Zhang, Xiong Cheng
Simulation Research On Operation Effect Of Vav Air-Conditioning System With Variable Water Temperature Strategy, Qinglong Meng, Zhibo Zhang, Xiong Cheng
Journal of System Simulation
Abstract: Aiming at the problem of coordinated operation between VAV (variable air volume) and variable water temperature in central air conditioning system, a TRNSYS dynamic simulation model of air conditioning system with adjustable air supply and water supply temperature is established, and the accuracy of the model is proved by experiments. By controlling the terminal air volume to simulate the effect of variable water temperature operation on the air conditioning system under different load rates, the optimal water supply temperature of the air conditioning system under different load rates is obtained, and the variable water temperature operation strategy of the …
Synthetic Aperture Ultrasonic Imaging Algorithm Based On Robust Capon Beamforming In Eigenspace, Yecai Guo, Xiaoxing Ji
Synthetic Aperture Ultrasonic Imaging Algorithm Based On Robust Capon Beamforming In Eigenspace, Yecai Guo, Xiaoxing Ji
Journal of System Simulation
Abstract: In order to lower the main lobe width and side lobe amplitude of SAF beams ,improve the robustness of ultrasound imaging algorithm, resolution, contrast in images, a synthetic aperture ultrasonic imaging algorithm based on robust Capon beamforming in eigenspace is proposed. Under the principle of MV, this algorithm firstly uses the Toeplitz to realize the reconstruction of the interference-noise covariance matrix and keep it nonsingular. Secondly, the vector error is constrained by the signal subspace and the elliptic constraint set in feature space. Finally, the optimal weight vector which is used to weight and image the echo data is …
Power Quality Disturbance Recognition Base On Maximum Variance Unfolding, Linlin Che, Yinghui Kong, Zhixiong Chen
Power Quality Disturbance Recognition Base On Maximum Variance Unfolding, Linlin Che, Yinghui Kong, Zhixiong Chen
Journal of System Simulation
Abstract: In view of the complexity of power quality disturbance (PQD), a recognition method of PQD feature extraction method based on maximum variance unfolding (MVU) is proposed and PQD recognition is completed by combining classifier algorithm in this paper. The wavelet energy features of PQD are extracted by wavelet transform to construct the original feature set.For the reason that non-convex quadratic programming is transformed into convex semi-definite optimization problem by kernel function, the MVU method is applied to compress the sample features into 3-dimension features which keep low dimensional structure in high dimensional space and make a rough recognition of …
Equipment Assignment And Supporting Efficiency Evaluation Based On Simulation, Lingwei Li, Wang Bing, Junhai Cao, Zhang Lei, Shen Hong
Equipment Assignment And Supporting Efficiency Evaluation Based On Simulation, Lingwei Li, Wang Bing, Junhai Cao, Zhang Lei, Shen Hong
Journal of System Simulation
Abstract: This paper studies an efficiency evaluation problem of equipment assignment policy (EAP), based on simulation modeling and analysis. Concept models of the life-cycle, operation preparing, training tasks, assignment and maintenance of equipment are presented. And mathematical models of the efficiency measures of EAP is established. Procedure simulation models based on flowchart is presented. The simulation models by C++ programming language is implemented. An example is designed and simulated. Time-varying data and evaluations of the EAP efficiency measures are also shown. The results show that this methodology can perform a comprehensive modeling and simulation for EAP, and multiple efficiency measures …
Simulation Research On Pedestrian Evacuation Path Selection In The Metro Station, Sun Di, Zhou Jin, Xueying Gao, Ting Jiao, Lixian Zhao
Simulation Research On Pedestrian Evacuation Path Selection In The Metro Station, Sun Di, Zhou Jin, Xueying Gao, Ting Jiao, Lixian Zhao
Journal of System Simulation
Abstract: As the underground environment is multilayered, more confined space underground, there are many services and facilities, so that when people evacuate the subway, they will have a variety of features and choices. Path probability selection of underground pedestrian evacuation is discussed. In the first stage, models are used to plan several routes. In the second stage, according to the data of real time passenger flow of the railway station, the density of passenger flow is taken as a variable to obtain the time of pedestrian evacuation through different facilities. The traffic capacity of every passage and facility …
Design And Analysis Of Sustained-G Flight Simulator Control Algorithm, Xiaoguang Zhou, Yihong Fang, Huaiying Tian, Mingzhi Yao
Design And Analysis Of Sustained-G Flight Simulator Control Algorithm, Xiaoguang Zhou, Yihong Fang, Huaiying Tian, Mingzhi Yao
Journal of System Simulation
Abstract: In order to solve the problem of mismatch exist between angular motions by Sustained-G Flight Simulator pilot through his proprioceptive receptors and visual receptors, the control algorithm of Sustained-G Flight Simulator is designed. The formulas relative to control input is derived; the mathematical model of human proprioceptive system is researched, the relationship between pilot's perceptual angular and rotating linear acceleration vectors and angular accelerations is given, based on that, the control algorithm of Sustained-G Flight Simulator is proposed, which can make a match existence between the angular motion perceived by Sustained-G Flight Simulator pilot and aircraft pilot. The simulation …
Operation Control Method For Connected And Autonomous Vehicles At Intersection, Linguo Chai, Baigen Cai, Shangguan Wei, Wang Jian, Junjie Chen
Operation Control Method For Connected And Autonomous Vehicles At Intersection, Linguo Chai, Baigen Cai, Shangguan Wei, Wang Jian, Junjie Chen
Journal of System Simulation
Abstract: A novel approach for coordinating connected and autonomous vehicles at intersection is proposed in this paper. The road connecting the specific intersection is divided into two areas: status calculation area and status adjustment area. When the vehicle enters the status calculation area, LOOSE algorithm which is implemented in the infrastructure would be triggered to calculate the target status of the vehicle for it to avoid collision in the intersection. The results of LOOSE would be optimized by COMPACT algorithm with the objective of minimum queue length. And then operational suggestions for the vehicle to …
Research On Multi-Objective Adaptive Equalization Control Strategy Based On Soh, Xiangwei Guo, Sumin Han, Hua Xian, Donglei Xie
Research On Multi-Objective Adaptive Equalization Control Strategy Based On Soh, Xiangwei Guo, Sumin Han, Hua Xian, Donglei Xie
Journal of System Simulation
Abstract: By analyzing the root-cause of inconsistency in the battery pack, and the coupling relationship between the internal and external factors of the battery, the multi-objective adaptive equalization control strategy based on SOH (State of Health) is proposed, the equalization of SOH, temperature and SOC can be realized simultaneously. SOH equalization achieves the same degree of lifetime attenuation of each cell in different working conditions, the inconsistency can be improved substantially. SOC equalization and temperature equalization further avoid the expansion of the inconsistency of single battery. The simulation model of balancing circuit is built in Matlab/Simulink for four series cells. …
Recurrent Cmacnn Control For Space Robot With Fully Flexible Arms And Elastic Base, Xiaoqin Huang, Chen Li
Recurrent Cmacnn Control For Space Robot With Fully Flexible Arms And Elastic Base, Xiaoqin Huang, Chen Li
Journal of System Simulation
Abstract: The trajectory tracking of elastic base and double flexible arms for a free-floating space robot system with fully flexible arms and elastic base is discussed. The elastic connection between the base and the arm is considered as a linear spring and dynamics model of the system which is regarded as a two- time scale system is derived. For the slow-varying subsystem, the recursive CMAC neural network (CMACNN) which has good dynamic characteristics is used to approximate uncertainties of dynamical equation and a recursive CMAC neural network control scheme which improves the tracking performance is designed to improve the …
Design Of Multi -Port Converter For Dc Micro-Grid System With Wind-Photovoltaic Storage, Liu Hui, Tinglong Pan
Design Of Multi -Port Converter For Dc Micro-Grid System With Wind-Photovoltaic Storage, Liu Hui, Tinglong Pan
Journal of System Simulation
Abstract: In order to coordinate energy, load and storage in DC micro-grid system and make efficient utilization of new energy, a multi-port converter for DC micro-grid hybrid energy storage is proposed. According to the composition rule of multi-port converter, by inserting the Buck-boost converter and bidirectional Buck-boost converter into the bootstrap converter of Luo-converter, the DC converter topology which can be used for complementation of wind-photovoltaic storage is produced. Two-way transmission of energy is realized. The analysis of all kinds of working conditions shows that each port of the converter is able to work independently and cooperatively. Different …
Research On Gear Transmission Error Based On Chaotic Ant Swarm Optimization, Xinrong Liu, Zhonghou Wang, Kubo Aizoh
Research On Gear Transmission Error Based On Chaotic Ant Swarm Optimization, Xinrong Liu, Zhonghou Wang, Kubo Aizoh
Journal of System Simulation
Abstract: In this paper, the dynamic model of bending- torsion -axis- heat of cylindrical helical gear system is established by considering the time-varying meshing stiffness and meshing impulse excitation. The NURBS method is used to reconstruct the trimming surface through superimposing the theoretical tooth surface and trimming tooth surface, then the influence of different trimming on the gear transmission error is analyzed. The optimal trimming surface is obtained by Chaos Ant Colony Algorithm. The finite element method is used to analyze the transmission error of the modified gear and the unshaped gear. The numerical simulation analysis shows that the amplitude …
The Method Summary Of Generating Large-Scale Artificial Population In An Artificial Society, Yuanzheng Ge, Zhichao Song, Rongqing Meng
The Method Summary Of Generating Large-Scale Artificial Population In An Artificial Society, Yuanzheng Ge, Zhichao Song, Rongqing Meng
Journal of System Simulation
Abstract: The generation of large-scale artificial population is the fundamental data of high-resolution agent-based artificial society. By the comparison of typical artificial population models, the basic elements, generating methods, and evolving rules, the development of artificial society, generation of population database, the establishment of spatial-temporal relationship, evolving rules of behavior, and reconstruction of social relationship are analyzed. Furthermore, data-driven method and open interface framework of artificial population are discussed, and the future direction and development are listed.
High-Order Reconstruction Of Maneuvering Decision-Making Process In Close Air Combat, Ya’Nan Kou, Longting Jiang, Wang Dong
High-Order Reconstruction Of Maneuvering Decision-Making Process In Close Air Combat, Ya’Nan Kou, Longting Jiang, Wang Dong
Journal of System Simulation
Abstract: Aiming at the reconfiguration of maneuvering decision-making in air combat, an extraction model of key maneuvering decision-making points is constructed. Based on the actual aircraft flight status data, by introducing the concept of jerkiness degree in physics, four indexes of pitching Angle, yaw Angle, roll Angle and speed jerkiness, are selected to construct evaluation index system of key maneuvering decision point. By using the theory of information entropy , the relevant indexes are reduced and the comprehensive evaluation value are obtained. Then maneuvering area is divided according to time domain, the decision points are extracted, and maneuvering decision-making refactoring …
Simulation Of Axial Vibration Characteristics Of Marine Riser Under Suspension Mode, Chuan Wang, Li Jun, Zhenqiang Xie, Guorong Wang
Simulation Of Axial Vibration Characteristics Of Marine Riser Under Suspension Mode, Chuan Wang, Li Jun, Zhenqiang Xie, Guorong Wang
Journal of System Simulation
Abstract: The mechanical simulation model of vertical vibration of Marine riser under suspension mode has been established based on the basic principle of dynamics theory. In the model, the influence of heave movement and top tensioner is considered. The vibration equation is solved by the finite difference method to obtain the distribution of axial stress and displacement. Besides, the effects of suspension mode, buoyancy block,water depth, wall thickness and LMRP on the vertical vibration of riser are discussed. According to the results, the soft suspension mode is superior to the hard suspension mode. The buoyancy blocks will increase the …
Simulation Of The Resistance Of Superhydrophobic Microchannel In Turbulent Regime, Chunxi Li, Qingze Cui, Xuemin Ye
Simulation Of The Resistance Of Superhydrophobic Microchannel In Turbulent Regime, Chunxi Li, Qingze Cui, Xuemin Ye
Journal of System Simulation
Abstract: VOF model and the Realizable k-ε turbulent model are used to simulate the three-dimensional flow field of superhydrophobic microchannels with longitudinal and transverse microstructures in turbulent regime, the effects of structural parameters on the resistance characteristics of superhydrophobic surface are analyzed. The results show that the superhydrophobic microchannels with longitudinal microgrooves exhibit significant reductions in drag; with the increase of the free shear area ratio and the width of the microchannel, the ratio of pressure drop increases, and the average friction factor decreases, as well as the drag reduction effect is highly significant; with the increase of …
Modeling And Simulation Of Financial Contagion Based On Correlated Assets Portfolio, Fan Hong, Chunyao Liu
Modeling And Simulation Of Financial Contagion Based On Correlated Assets Portfolio, Fan Hong, Chunyao Liu
Journal of System Simulation
Abstract: The correlation of assets portfolio in financial institutions is an important cause of indirect financial contagion, but the modeling of this problem has not been studied yet. Considering the correlation between the assets invested by financial institutions, a dynamic evolution model and the simulation algorithm of financial network system based on correlated assets portfolio are constructed; and the impact of assets portfolio correlation, degree of assets diversity and market density (the ratio of financial institutions to assets) on financial contagion are studied. Simulation results show that the positive correlation between assets portfolio exacerbates financial contagion, while the negative correlation …
Human Re-Identification Based On Part Segmentation, Jiang Hua, Zhang Liang
Human Re-Identification Based On Part Segmentation, Jiang Hua, Zhang Liang
Journal of System Simulation
Abstract: Human re-identification is a difficult problem to solve in process of video analysis of non-overlapping multi-camera surveillance system. A new algorithm of human re-identification is proposed on the basis of human part segmentation. Based on the depth of bone points to achieve the human body segmentation, the optimal key frame is selected by using the scoring strategy for all parts of the same human multi-frame image segmentation; the different weights for the global color feature and the HOG feature are assigned; all the characteristics to establish a human target model are combined; and the EMD (Earth Mover’s …
Pshev Cold Start Emission Simulation Based On Electric Heated Catalyst Pre-Heating, Deng Tao, Haoyuan Yu, Zhifei Li, Haixin Tan
Pshev Cold Start Emission Simulation Based On Electric Heated Catalyst Pre-Heating, Deng Tao, Haoyuan Yu, Zhifei Li, Haixin Tan
Journal of System Simulation
Abstract: In order to reduce the emissions of the plug-in series hybrid electric vehicle (PSHEV) during the cold start phase, a vehicle model on PSHEV is established and a dynamic model of electrically heated catalyst system (EHCS) based on optimization and control strategy of engine start-stop is built. The PSHEV energy management control strategy based on EHCS preheating is proposed. The influence of different pre-heating power on EHCS temperature is simulated. By comparing SOC value of the control strategy with the original control strategy; and comparative analysis of cold start emissions of three elements catalyst under three strategies of pre-heating, …
Fatigue Life Prediction Of Turbine Blades Based On Qar Data, Pi Jun, Shuwei Gao, Jiangbo Huang, Huang Lei, Ma Long
Fatigue Life Prediction Of Turbine Blades Based On Qar Data, Pi Jun, Shuwei Gao, Jiangbo Huang, Huang Lei, Ma Long
Journal of System Simulation
Abstract: Based on the characteristics of the high-pressure turbine blade, a numerical simulation method for the actual load spectrum of the high-pressure turbine blade of the civil aircraft engine based on the QAR data is proposed. The actual service load spectrum of the engine recorded during aircraft flight is extracted from the QAR data; the time history of centrifugal force, aerodynamic force and thermal stress of the turbine blade in actual use is obtained by means of finite element simulation; and with life prediction model, the actual service life of the blade is estimated. This method provides a reliable …
Design Of Nonsmooth And Inversed Control Algorithm For Nonlinear Structural Vibration Control, Jianhui Wang, Wang Qing, Kemao Ma, Xiaofang Huang
Design Of Nonsmooth And Inversed Control Algorithm For Nonlinear Structural Vibration Control, Jianhui Wang, Wang Qing, Kemao Ma, Xiaofang Huang
Journal of System Simulation
Abstract: Considering the vibration effects of seismic waves on building with nonlinear structures, a nonsmooth and inversed control algorithm is used to suppress the vibration. It overcomes the faults of ignoring nonlinear influence in traditional approximate linearization control method and suppresses the influence of seismic waves effectively. According to Lyapunov stable theory and finite-time stability theory, the proposed control method to realize the stability of the nonlinear structural vibration is demonstrated. In the realization of the control method, the extended state observer is used to estimate the unknown disturbances. The numerical simulation is conducted for an eight-story building influenced …
Analysis Of Amplitude-Frequency Characteristics Of Fractional-Order Current-Controlled Meminductor, Liu Meng, Zhaohui Gan, Shiying Zhang
Analysis Of Amplitude-Frequency Characteristics Of Fractional-Order Current-Controlled Meminductor, Liu Meng, Zhaohui Gan, Shiying Zhang
Journal of System Simulation
Abstract: Meminductor is a nonlinear memory element with hysteresis characteristics, which is an important part of memristive systems. In recent years, meminductor research is mainly focused on time domain characteristics, but the research of frequency domain characteristics of meminductor has not been seen report. A fractional-order current-controlled meminductor model with nonlinear window function is studied, and the amplitude-frequency response characteristics of meminductor under different excitation signals are analyzed in detail. The influence of fractional-order and control parameter in window function on amplitude-frequency characteristics of the fractional-order current-controlled meminductor is summarized. It has certain guiding significance to research of meminductor characteristics.
Simulation Research On Damage Identification Of Simply Supported Beam Based On Wavelet Packet Energy Method, Xijun Liu, Xiankun Tao, Suxia Zhang
Simulation Research On Damage Identification Of Simply Supported Beam Based On Wavelet Packet Energy Method, Xijun Liu, Xiankun Tao, Suxia Zhang
Journal of System Simulation
Abstract: A finite element model of simply-supported beam is built by ANSYS;the displacement response of the beam is used to make wavelet packet analysis with MATLAB to get the curvature difference of WP-E (wavelet packet energy);and the studies on the effects of different parameters on damage recognition results of simple beam bridge are carried out, such as damage locations, damage level, measuring point density and speed of moving loads. For the condition of less measuring points, a method of arranging the measuring points by two steps is proposed. The normalized curvature difference of WP-E is made to study the …
Multi Objective Flexible Load Scheduling In Smart Home Based On Grey Wolf Algorithm, Bao Yi, Dai Bo, Zhihua Wang, Wanliang Wang
Multi Objective Flexible Load Scheduling In Smart Home Based On Grey Wolf Algorithm, Bao Yi, Dai Bo, Zhihua Wang, Wanliang Wang
Journal of System Simulation
Abstract: A three level electricity price model is designed based on the electricity consumption. A comfort model of multi parameters is designed for optimizing the grid load control of temperature and the humidity, light intensity and human activity. Grey wolf algorithm is used to solve the multi-objective problem. The grey wolf algorithm has its superiority in solving high dimensional and multi peak of complex function problems. Theoretical and experimental analysis shows that the grey wolf algorithm in accuracy and stability is better than particle swarm optimization algorithm and differential evolution algorithm. The simulation results show that the proposed algorithm can …