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International Journal of Modeling and Optimization最新文献

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Structural Design and Trajectory Analysis of Planetary Wheel Stirring Device 行星轮搅拌装置结构设计与轨迹分析
International Journal of Modeling and Optimization Pub Date : 2022-05-01 DOI: 10.7763/ijmo.2022.v12.802
Meijuan Luo, R. Ge, Xiuli Fu
{"title":"Structural Design and Trajectory Analysis of Planetary Wheel Stirring Device","authors":"Meijuan Luo, R. Ge, Xiuli Fu","doi":"10.7763/ijmo.2022.v12.802","DOIUrl":"https://doi.org/10.7763/ijmo.2022.v12.802","url":null,"abstract":"The agitator is a kind of general equipment that is widely used in industrial and agricultural production. It involves many fields such as petroleum, chemical industry, rubber and coatings. All of which aim at obtaining homogeneous materials, improving the service performance of materials or accelerating the reaction. Compared with the ordinary agitator, the planetary agitator has a wider agitating range. This article introduces the structure and working method of planetary wheel agitator. The mathematical model of the movement track of a point on the mixing shovel is established, an example model of planetary stirring is designed and verified by comparison between Adams software and MATLAB software. On the basis of this, the change law of motion trajectory and coverage rate is analyzed; In addition to this, the influence of speed ratio on speed distribution is analyzed by EDEM simulation, which provides reference for subsequent design improvement.","PeriodicalId":134487,"journal":{"name":"International Journal of Modeling and Optimization","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116291268","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
Context-Aware Dynamic Object Relationship Modeling 上下文感知的动态对象关系建模
International Journal of Modeling and Optimization Pub Date : 2022-05-01 DOI: 10.7763/ijmo.2022.v12.798
Kentaroh Toyoda, Rachel Gan Kai Ying, Tan Puay Siew, Allan Neng Sheng Zhang
{"title":"Context-Aware Dynamic Object Relationship Modeling","authors":"Kentaroh Toyoda, Rachel Gan Kai Ying, Tan Puay Siew, Allan Neng Sheng Zhang","doi":"10.7763/ijmo.2022.v12.798","DOIUrl":"https://doi.org/10.7763/ijmo.2022.v12.798","url":null,"abstract":"Finding relationships in the data is essential for object modeling. However, existing methods generally focus on pre-defined static relationships using semantics and ontology, which is inappropriate when we are interested in dynamic relationships between objects that appear in data sources (e.g. log files). In this paper, we propose two novel methods to dynamically extract contextual relationships that appear in heterogeneous data sources. Our method detects contexts (e.g. time and location) in a given data source and quantifies the similarities between objects based on the detected contexts. Specifically, our methods consist of (i) a fast and accurate context detection method with carefully engineered discriminative features and (ii) a similarity measure that takes into account contexts. We evaluated our context detection method with an open dataset to show its detection accuracy and speed.","PeriodicalId":134487,"journal":{"name":"International Journal of Modeling and Optimization","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127018951","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
CFD-CAA Method for Prediction of Pseudosound and Emitted Noise in Quadcopter Propeller 四轴飞行器螺旋桨伪声和发射噪声的CFD-CAA预测方法
International Journal of Modeling and Optimization Pub Date : 2022-02-01 DOI: 10.7763/ijmo.2022.v12.794
S. Timushev, A. Yakovlev, D. Klimenko
{"title":"CFD-CAA Method for Prediction of Pseudosound and Emitted Noise in Quadcopter Propeller","authors":"S. Timushev, A. Yakovlev, D. Klimenko","doi":"10.7763/ijmo.2022.v12.794","DOIUrl":"https://doi.org/10.7763/ijmo.2022.v12.794","url":null,"abstract":"Subsonic flow air blade machines like UAV propellers generate intensive noise thus the prediction of acoustic impact, optimization of these machines in order to reduce the level of emitted noise is an urgent engineering task. Currently, the development of calculation methods for determining the amplitudes of pressure pulsations and noise characteristics by CFD-CAA methods is a necessary requirement for the development of computer-aided design methods for blade machines, where the determining factors are the accuracy and speed of calculations. The main objective is to provide industrial computer-aided design systems with a highly efficient domestic software to create optimal designs of UAV blade machines that provide a given level of pressure pulsations in the flow part and radiated noise. It comprises: 1) creation of a method for the numerical simulation of sound generation using the correct decomposition of the initial equations of hydrodynamics of a compressible medium and the selection of the source of sound waves in a three-dimensional definition, taking into account the rotation of blades and their interaction with the stator part of the UAV; 2) decomposition of the boundary conditions accounting pseudo-sound disturbances and the complex acoustic impedance at the boundaries of the computational domain 3) development of an effective SLAE solver for solving the acoustic-vortex equation in complex arithmetic (taking into account the boundary conditions in the form of complex acoustic impedance); 4) testing of a new method at all stages of development using experimental data on the generation of pressure pulsations and aerodynamic noise, including a propeller noise measurements.","PeriodicalId":134487,"journal":{"name":"International Journal of Modeling and Optimization","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133956937","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
Sealing The Cracks in the Wear Layer of the Road Surface by Friction against a Rotary Active Element 通过与旋转主动元件的摩擦密封路面磨损层的裂缝
International Journal of Modeling and Optimization Pub Date : 2022-02-01 DOI: 10.7763/ijmo.2022.v12.795
Ş. Ioniţă, Ș. Velicu
{"title":"Sealing The Cracks in the Wear Layer of the Road Surface by Friction against a Rotary Active Element","authors":"Ş. Ioniţă, Ș. Velicu","doi":"10.7763/ijmo.2022.v12.795","DOIUrl":"https://doi.org/10.7763/ijmo.2022.v12.795","url":null,"abstract":"The main objective of the research paper is the theoretical and experimental analysis of the method proposed for sealing (clogging) cracks in asphalt, by means of a cylindrical bitumen bar, enriched with plastic and rubber granules (obtained from the use of waste), which melts and infuses into the cracked zone by rotation and friction against it. After analyzing the technical characteristics of the sealed area and the time required to apply the bitumen layer, this method can be chosen in the future to the detriment of the expensive operations of partial milling of the cracked wear layer, making possible the repair of cracks by sealing(clogging), using the friction procedure. The research results highlighted the diminution of road maintenance costs using the method of friction, the decrease of cracks repair time, maintaining the initial characteristics of the repaired area, incorporating a waterproofing material (plastic and rubbber granules from recycled waste), keeping the wear layer in good conditions, possibility of embedding an intelligent system of traffic monitoring at low costs etc.","PeriodicalId":134487,"journal":{"name":"International Journal of Modeling and Optimization","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133801593","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
Design of a VTOL UAV for Anti-poaching Surveillance Missions in the Danube Delta 用于多瑙河三角洲反偷猎监视任务的垂直起降无人机设计
International Journal of Modeling and Optimization Pub Date : 2022-02-01 DOI: 10.7763/ijmo.2022.v12.796
Sorin Andrei Negru, M. Manea, G. Jiga
{"title":"Design of a VTOL UAV for Anti-poaching Surveillance Missions in the Danube Delta","authors":"Sorin Andrei Negru, M. Manea, G. Jiga","doi":"10.7763/ijmo.2022.v12.796","DOIUrl":"https://doi.org/10.7763/ijmo.2022.v12.796","url":null,"abstract":"The main objective of the research paper is the theoretical and experimental analysis of the method proposed for sealing (clogging) cracks in asphalt, by means of a cylindrical bitumen bar, enriched with plastic and rubber granules (obtained from the use of waste), which melts and infuses into the cracked zone by rotation and friction against it. After analyzing the technical characteristics of the sealed area and the time required to apply the bitumen layer, this method can be chosen in the future to the detriment of the expensive operations of partial milling of the cracked wear layer, making possible the repair of cracks by sealing(clogging), using the friction procedure. The research results highlighted the diminution of road maintenance costs using the method of friction, the decrease of cracks repair time, maintaining the initial characteristics of the repaired area, incorporating a waterproofing material (plastic and rubbber granules from recycled waste), keeping the wear layer in good conditions, possibility of embedding an intelligent system of traffic monitoring at low costs etc.","PeriodicalId":134487,"journal":{"name":"International Journal of Modeling and Optimization","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123985705","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
Architectural Holarchy of the Next Generation Manufacturing System 下一代制造系统的整体架构
International Journal of Modeling and Optimization Pub Date : 2022-02-01 DOI: 10.7763/ijmo.2022.v12.793
G. Frumuşanu, A. Epureanu
{"title":"Architectural Holarchy of the Next Generation Manufacturing System","authors":"G. Frumuşanu, A. Epureanu","doi":"10.7763/ijmo.2022.v12.793","DOIUrl":"https://doi.org/10.7763/ijmo.2022.v12.793","url":null,"abstract":"Nowadays, the global energy network can generate and transmit, between any two points belonging to it, high quantity of energy. During recent years, a global information network, able to process, store, and transmit huge amounts of information, has been developed as well. These networks entirely cover the industrial space, already giving the opportunity to make permanently available, in any of its points, at any time, as much as needed, both energy and information. On the other hand, the mass customization trend has led to the pronounced increase of “manufacturing to order” (MTO) production, taking place in a higher and higher number of small & medium enterprises. At this level, a given manufacturing system cannot be quickly and appropriately configured to a given product, due to production high variability in range. As consequence, the manufacturing system is, quite always, more or less unadjusted to the manufactured product, its performance being significantly affected. Starting from here, the challenge is to make a conceptual rebuilding of the manufacturing system, aiming to increase its degree of appropriateness to products, by taking advantage from the opportunities brought by the existence of global energy & information networks. This paper approach is to see the next generation manufacturing system as holonic modular cyber-physical system. System architecture permanently accords to the manufactured product requirements. The function, procedure, topology and holarchy model of the system are presented. The main features of the system are also revealed.","PeriodicalId":134487,"journal":{"name":"International Journal of Modeling and Optimization","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128973135","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
Multi-objective Optimization of a Mechatronic Solar Tracking Mechanisms 某机电一体化太阳跟踪机构的多目标优化
International Journal of Modeling and Optimization Pub Date : 2021-11-01 DOI: 10.7763/IJMO.2021.V11.789
C. Alexandru
{"title":"Multi-objective Optimization of a Mechatronic Solar Tracking Mechanisms","authors":"C. Alexandru","doi":"10.7763/IJMO.2021.V11.789","DOIUrl":"https://doi.org/10.7763/IJMO.2021.V11.789","url":null,"abstract":"","PeriodicalId":134487,"journal":{"name":"International Journal of Modeling and Optimization","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121933494","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
A Mathematical Model for Tool Sharing between Workers by Exact Solution Approach 用精确解法建立工人共用刀具的数学模型
International Journal of Modeling and Optimization Pub Date : 2021-11-01 DOI: 10.7763/IJMO.2021.V11.790
Ashish Yadav, Jabalpur India Manufacturing
{"title":"A Mathematical Model for Tool Sharing between Workers by Exact Solution Approach","authors":"Ashish Yadav, Jabalpur India Manufacturing","doi":"10.7763/IJMO.2021.V11.790","DOIUrl":"https://doi.org/10.7763/IJMO.2021.V11.790","url":null,"abstract":"","PeriodicalId":134487,"journal":{"name":"International Journal of Modeling and Optimization","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121181868","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
New approach for Secant Update generalized version of PSB 割线更新PSB广义版的新方法
International Journal of Modeling and Optimization Pub Date : 2021-11-01 DOI: 10.7763/IJMO.2021.V11.786
Nicolas Boutet, R. Haelterman, J. Degroote
{"title":"New approach for Secant Update generalized version of PSB","authors":"Nicolas Boutet, R. Haelterman, J. Degroote","doi":"10.7763/IJMO.2021.V11.786","DOIUrl":"https://doi.org/10.7763/IJMO.2021.V11.786","url":null,"abstract":"Working with Quasi-Newton methods in optimization leads to one important challenge, being to find an estimate of the Hessian matrix as close as possible to the real matrix. While multisecant methods are regularly used to solve root finding problems, they have been little explored in optimization because the symmetry property of the Hessian matrix estimation is generally not compatible with the multisecant property. In this paper, we propose a solution to apply multisecant methods to optimization problems. Starting from the Powell-Symmetric-Broyden (PSB) update formula and adding pieces of information from the previous steps of the optimization path, we want to develop a new update formula for the estimate of the Hessian. A multisecant version of PSB is, however, generally mathematically impossible to build. For that reason, we provide a formula that satisfies the symmetry and is as close as possible to satisfy the multisecant condition and vice versa for a second formula. Subsequently, we add enforcement of the last secant equation to the symmetric formula and present a comparison between the different methods.","PeriodicalId":134487,"journal":{"name":"International Journal of Modeling and Optimization","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126271178","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
Modeling and Controlling the Cooling System of an IC Vehicle 集成电路车辆冷却系统的建模与控制
International Journal of Modeling and Optimization Pub Date : 2021-08-01 DOI: 10.7763/IJMO.2021.V11.782
C. Mureșan, G. Harja
{"title":"Modeling and Controlling the Cooling System of an IC Vehicle","authors":"C. Mureșan, G. Harja","doi":"10.7763/IJMO.2021.V11.782","DOIUrl":"https://doi.org/10.7763/IJMO.2021.V11.782","url":null,"abstract":"The performance and efficiency of internal combustion (IC) engines can be greatly improved by using a high-performance cooling system. This can be achieved by implementing robust control strategies and, also by building the cooling system with high-performance elements. The mechanical execution elements can be replaced with electrically controllable elements such as the pump and the thermostat valve. This will have a positive influence on the degree of controllability of the system. In order to develop highperformance control algorithms, it is necessary to have a model that best reflects the behaviors of the physical system. Thus, this paper presents a mathematical modeling approach for the cooling system using the principles of heat exchangers and the physical phenomena present in them.","PeriodicalId":134487,"journal":{"name":"International Journal of Modeling and Optimization","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123826243","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
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