Modelling and Simulation in Engineering最新文献_第5页

New Rayleigh Flexible Weibull Extension (RFWE) Distribution with Applications to Real and Simulated Data 新型瑞利柔性威布尔扩展(RFWE)分布及其在真实和模拟数据中的应用

IF 3.2

Modelling and Simulation in Engineering Pub Date : 2022-10-22 DOI: 10.1155/2022/7718284

Muneeb Javed, S. M. Asim, A. Khalil, Said Farooq Shah, Z. Almaspoor

引用次数: 0

Mathematical Modeling and Performance Evaluation of 3D Ferroelectric Negative Capacitance FinFET 三维铁电负电容FinFET的数学建模与性能评价

IF 3.2

Modelling and Simulation in Engineering Pub Date : 2022-10-19 DOI: 10.1155/2022/8345513

S. Alam, Rukon Uddin, M. J. Alam, Ahamed Raihan, S. Mahtab, Subrata Bhowmik

引用次数: 0

Simulation of the Industrial Oil Adsorption Purification Process for Automation Tasks 面向自动化任务的工业油吸附净化过程仿真

IF 3.2

Modelling and Simulation in Engineering Pub Date : 2022-10-14 DOI: 10.1155/2022/2738654

Liudmyla Yaroshchuk, Yevheniia Tiurina

{"title":"Simulation of the Industrial Oil Adsorption Purification Process for Automation Tasks","authors":"Liudmyla Yaroshchuk, Yevheniia Tiurina","doi":"10.1155/2022/2738654","DOIUrl":"https://doi.org/10.1155/2022/2738654","url":null,"abstract":"Objective reasons associated with an increase of transport quantity and the volume of industrial goods and energy service production lead to the accumulation of used oils and greases. These substances can be reused in the case of their purification. Such resource saving is facilitated by the development of technologies, in particular, adsorption purification and efficient systems for their automation. The article carried out a detailed analysis of the continuous adsorption purification technological system and indicated its significant differences from the point of view of control systems with special preparation of raw materials. The conclusion about the presence of nonstationarity and stochasticity sources of continuous adsorption as a control object is substantiated, which made it possible to impose requirements on the properties of the control model. The existing methods of adsorption mathematical description are analyzed within their use for continuous control. Structures of dynamic models based on a combination of analytical and experimental methods are proposed. Analytical models are based on mass balances of substances, known forms of approximations for describing equilibrium conditions and adsorption kinetics are studied, and experimental and statistical modeling is carried out to determine possible structures of the connection between technological variables during control. A structural-parametric scheme of the model and a scheme for its adaptation in control systems have been formed. An example of an adsorption simulation model formation using MATLAB+Simulink is shown. The results can be used to develop software for control systems of continuous adsorption and to test control algorithms.","PeriodicalId":45541,"journal":{"name":"Modelling and Simulation in Engineering","volume":null,"pages":null},"PeriodicalIF":3.2,"publicationDate":"2022-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79438895","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Designing of Fiber Bragg Gratings for Long-Distance Optical Fiber Sensing Networks 远距离光纤传感网络中光纤Bragg光栅的设计

IF 3.2

Modelling and Simulation in Engineering Pub Date : 2022-10-05 DOI: 10.1155/2022/8331485

J. Braunfelds, Elvis Haritonovs, U. Seņkāns, I. Kurbatska, I. Murans, J. Porins, S. Spolitis

引用次数: 6

Anaerobic Co-Digestion of Human Feces with Rice Straw for Biogas Production: A Case Study in Sunyani 人类粪便与稻草厌氧共消化产沼气:以苏亚尼为例

IF 3.2

Modelling and Simulation in Engineering Pub Date : 2022-09-15 DOI: 10.1155/2022/2608045

Irédon Adjama, N. Derkyi, F. Uba, G. Akolgo, Richard Opuko

引用次数: 8

Coupling Modeling and Adaptive Control for Piezoelectric-Actuated Positioning Stage 压电驱动定位台的耦合建模与自适应控制

IF 3.2

Modelling and Simulation in Engineering Pub Date : 2022-09-02 DOI: 10.1155/2022/2534439

Liang Li, Shi-Xin Zhang, Sheng-Jun Wen

{"title":"Coupling Modeling and Adaptive Control for Piezoelectric-Actuated Positioning Stage","authors":"Liang Li, Shi-Xin Zhang, Sheng-Jun Wen","doi":"10.1155/2022/2534439","DOIUrl":"https://doi.org/10.1155/2022/2534439","url":null,"abstract":"In this paper, a nonlinear coupling model with hysteresis, dynamics, and creep is proposed to describe accurately the complex characteristics of piezoelectric-actuated positioning stage, where a classic Hammerstein model in series with a fractional-order model is given. The fractional-order model is presented to express the nonlinear creep characteristics. Firstly, the Hammerstein structure model is composed of two blocks, where the former block is the classical PI model to describe the static hysteresis effects, and the latter block is the second-order discrete transfer function model to characterize the dynamic characteristics. In addition, the parameters of the coupling model are identified. Secondly, based on the built model, the inverse of fractional-order model and the inverse of PI model are implemented as the feedforward compensations, and an adaptive control is designed to adjust the tracking performance of the whole system. Finally, the effectiveness of the proposed coupling model and controllers are verified by the piezoelectric-actuated positioning experiment stage. Experimental results show that the established coupling model can accurately characterize the hysteresis, dynamics, and creep properties of the stage. Also, the results show that the tracking error is less than 0.8% at low frequency and mixed frequency.","PeriodicalId":45541,"journal":{"name":"Modelling and Simulation in Engineering","volume":null,"pages":null},"PeriodicalIF":3.2,"publicationDate":"2022-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86834095","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Protection System Design of Induction Motor for Industries 工业用感应电动机保护系统设计

IF 3.2

Modelling and Simulation in Engineering Pub Date : 2022-08-31 DOI: 10.1155/2022/7423018

Shoaib Sheikh, Dileep Kumar, Abdul Hakeem, Arsalan Muhammad Soomar

{"title":"Protection System Design of Induction Motor for Industries","authors":"Shoaib Sheikh, Dileep Kumar, Abdul Hakeem, Arsalan Muhammad Soomar","doi":"10.1155/2022/7423018","DOIUrl":"https://doi.org/10.1155/2022/7423018","url":null,"abstract":"The fundamental and durable structures of induction motor, as well as their low manufacturing cost, make them popular components in a wide range of current applications. Providing a safety net for employees is a must-have for businesses. This project’s motivation for improvement is to provide industrial motors, lift motors, pumps, and so on with safety. An induction motor’s primary goal is to protect it from problems, such as single phasing and overheating, as well as other issues. Providing industrial motors, pumps, lift motors, and other similar devices with security is a major motivation behind the emergence of this issue. Any of the three phases missing or the motor temperature above the predetermined threshold causes the motor to stop instantly. Three one-stage transformers are connected to a three-phase power supply in the system. Power will be cut to the transformer circuit if any phase is available. Motors can be turned off by relays sending a signal to the four-pole contactor. As a result, the motor’s three-phase power supply has been cut off. Temperature readings are taken from a thermistor (DHT22) that is attached to the motor. At higher temperatures, the three-phase supply will be cut off by a four-pole contactor, and the motor will shut off. This manuscript resolves the uses transformers to solve the problem of single phasing. Also, our project addresses the issue by using microcontroller. It senses all the three phases and decides whether to supply power to induction motor or to disconnect. It deals with the temperature problem, and it uses a thermistor to disconnect the circuitry, whereas in our project, a microcontroller senses the overwhelming temperature and acts accordingly, i.e., give a signal and then move towards disconnection.","PeriodicalId":45541,"journal":{"name":"Modelling and Simulation in Engineering","volume":null,"pages":null},"PeriodicalIF":3.2,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74963254","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8

Construction of Evaluation Index System of Office Sitting Comfort Based on Ergonomics 基于人机工程学的办公坐姿舒适性评价指标体系构建

IF 3.2

Modelling and Simulation in Engineering Pub Date : 2022-08-31 DOI: 10.1155/2022/5909778

Jiadian Hu, Shoudong Shi, Jiaqing Zheng, Zhiyuan Fang

{"title":"Construction of Evaluation Index System of Office Sitting Comfort Based on Ergonomics","authors":"Jiadian Hu, Shoudong Shi, Jiaqing Zheng, Zhiyuan Fang","doi":"10.1155/2022/5909778","DOIUrl":"https://doi.org/10.1155/2022/5909778","url":null,"abstract":"People who sit incorrectly can have musculoskeletal disorders like cervical spondylosis and lumbar vertebra disease, but without the guidance of a health care professional, it is difficult for people to evaluate their posture and adopt a more appropriate posture. Therefore, to solve this problem, we established a multilevel sitting posture evaluation system by analyzing the parameters such as joint angle, joint torque, joint force, and muscle force. Use the analytic hierarchy process and entropy comprehensive weighting method to weight evaluation indicators. According to their evaluation standards, each parameter is given weight after quantization and normalization. Firstly, take several sitting postures that often appear in office work as examples and use the lower back analysis and joint and static pressure analysis tools in JACK software for simulation analysis. Then, the weights of various parameters such as joints and muscles of the human body were calculated using the hierarchy analysis and entropy weight method, and the quantitative evaluation system of office sitting comfort was constructed. We recruited 50 subjects for an office simulation experiment to verify the feasibility of the evaluation index. Finally, we classified the sitting posture and selected those commonly used in life for evaluation. The proposed sitting posture evaluation system can objectively and comprehensively reflect the quality of sitting posture and guide people to adopt what kind of sitting posture.","PeriodicalId":45541,"journal":{"name":"Modelling and Simulation in Engineering","volume":null,"pages":null},"PeriodicalIF":3.2,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83804578","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

A Lightweight Convolutional Neural Network to Predict Steering Angle for Autonomous Driving Using CARLA Simulator 基于CARLA模拟器的自动驾驶转向角预测的轻量级卷积神经网络

IF 3.2

Modelling and Simulation in Engineering Pub Date : 2022-08-23 DOI: 10.1155/2022/5716820

Imtiaz Ul Hassan, Huma Zia, H. S. Fatima, S. Yusuf, M. Khurram

{"title":"A Lightweight Convolutional Neural Network to Predict Steering Angle for Autonomous Driving Using CARLA Simulator","authors":"Imtiaz Ul Hassan, Huma Zia, H. S. Fatima, S. Yusuf, M. Khurram","doi":"10.1155/2022/5716820","DOIUrl":"https://doi.org/10.1155/2022/5716820","url":null,"abstract":"End-to-end learning for autonomous driving uses a convolutional neural network (CNN) to predict the steering angle from a raw image input. Most of the solutions available for end-to-end autonomous driving are computationally too expensive, which increases the inference of autonomous driving in real time. Therefore, in this paper, CNN architecture has been trained which is lightweight and achieves comparable results to Nvidia’s PilotNet. The data used to train and evaluate the network is collected from the Car Learning to Act (CARLA) simulator. To evaluate the proposed architecture, the MSE (mean squared error) is used as the performance metric. Results of the experiment shows that the proposed model is 4x lighter than Nvidia’s PilotNet in term of parameters but still attains comparable results to PilotNet. The proposed model has achieved \u0000 \u0000 5.1\u0000 ×\u0000 \u0000 \u0000 10\u0000 \u0000 \u0000 −\u0000 4\u0000 \u0000 \u0000 \u0000 MSE on testing data while PilotNet MSE was \u0000 \u0000 4.7\u0000 ×\u0000 \u0000 \u0000 10\u0000 \u0000 \u0000 −\u0000 4\u0000 \u0000 \u0000 \u0000 .","PeriodicalId":45541,"journal":{"name":"Modelling and Simulation in Engineering","volume":null,"pages":null},"PeriodicalIF":3.2,"publicationDate":"2022-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75959431","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimized Luenberger Observer-Based PMSM Sensorless Control by PSO 基于Luenberger观测器的PMSM无传感器优化PSO控制

IF 3.2

Modelling and Simulation in Engineering Pub Date : 2022-08-22 DOI: 10.1155/2022/3328719

Rongfu Luo, Zenghui Wang, Yanxia Sun

{"title":"Optimized Luenberger Observer-Based PMSM Sensorless Control by PSO","authors":"Rongfu Luo, Zenghui Wang, Yanxia Sun","doi":"10.1155/2022/3328719","DOIUrl":"https://doi.org/10.1155/2022/3328719","url":null,"abstract":"In the real applications, we found that it is difficult to achieve good control performance through manually tuning proportional–integral (PI) parameters of phase locked loop (PLL) and speed-loop of Luenberger observer (LO) for the PMSM sensorless control system. Therefore, this paper is to use the particle swarm optimization (PSO) algorithm to optimize the PI parameters of PLL and speed-loop of Luenberger observer of the system. Firstly, the ranges of PLL parameters are obtained by analyzing the PLL subsystem stability. Then, the ranges of PI parameters of PLL and speed-loop are set based on theoretical estimation and empirical values. The control system model is realized in MATLAB/Simulink that considers the constraints such as the saturation. The integral time absolute error is the objective function, and the PSO with different topologies is used to optimize the PI parameters. The simulation and experimental results show that the proposed method is feasible, and the optimized parameters can effectively improve the precision of position estimation and speed estimation. Moreover, the simulations and experiments are carried out to verify the robustness of the proposed method, and the results show that the optimized system can achieve good performance when there are uncertainties or disturbances.","PeriodicalId":45541,"journal":{"name":"Modelling and Simulation in Engineering","volume":null,"pages":null},"PeriodicalIF":3.2,"publicationDate":"2022-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77038743","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1