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Fixed Set Search Applied to the Territory Design Problem 修正了区域设计问题的集合搜索
IF 1.7 4区 计算机科学
Modeling Identification and Control Pub Date : 2022-01-01 DOI: 10.1007/978-3-031-26504-4_23
Tobias Cors, T. Vlcek, S. Voß, R. Jovanovic
{"title":"Fixed Set Search Applied to the Territory Design Problem","authors":"Tobias Cors, T. Vlcek, S. Voß, R. Jovanovic","doi":"10.1007/978-3-031-26504-4_23","DOIUrl":"https://doi.org/10.1007/978-3-031-26504-4_23","url":null,"abstract":"","PeriodicalId":49801,"journal":{"name":"Modeling Identification and Control","volume":"29 1","pages":"322-334"},"PeriodicalIF":1.7,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89336648","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Guide to Student-active Online Learning in Engineering 《工程学生主动在线学习指南》
IF 1.7 4区 计算机科学
Modeling Identification and Control Pub Date : 2020-01-04 DOI: 10.4173/mic.2020.2.5
E. Kyrkjebø
{"title":"A Guide to Student-active Online Learning in Engineering","authors":"E. Kyrkjebø","doi":"10.4173/mic.2020.2.5","DOIUrl":"https://doi.org/10.4173/mic.2020.2.5","url":null,"abstract":"Online learning in higher education is becoming increasingly common as the possibilities of the available digital infrastructure expand A recent emergent driver for online learning is the closing of universities to limit the spread of the coronavirus (COVID-19) Many educators are now faced with the need to make their teaching digital, though they have little or no experience with online teaching methods In such a situation, learning outcomes may come second to what can be readily implemented by available digital resources In this paper, a design for student-active online learning in engineering is proposed as a guide to help take account of learning objectives first, and the digital tools and resources necessary to achieve those objectives second In addition, the paper emphasises the social dimension of online learning, and recommends that explicit actions should be taken to increase positive social relations between students in an online course to be able to succeed with student-active learning methods In the paper, a clear path is followed from objectives to learning activities, and then to assessments and evaluations, and appropriate digital tools and resources are suggested to support activities and evaluations in an online course Online courses in engineering are targeted in particular, and challenges that arise from common activities such as problem solving and practical work in an online engineering course are addressed The proposed guide emphasises usability to ensure that it can be used even by inexperienced digital educators, and an example on how the guide can be applied to design an online course in mobile robotics is given The proposed guide aims to help shift online learning in engineering from traditionally teacher-active lectures to more student-active learning activities","PeriodicalId":49801,"journal":{"name":"Modeling Identification and Control","volume":"16 1","pages":"91-107"},"PeriodicalIF":1.7,"publicationDate":"2020-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83966744","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
A Novel Process-Reaction Curve Method for Tuning PID Controllers 一种基于过程-反应曲线的PID控制器整定方法
IF 1.7 4区 计算机科学
Modeling Identification and Control Pub Date : 2018-01-10 DOI: 10.4173/MIC.2018.4.4
Christer Dalen, D. D. Ruscio
{"title":"A Novel Process-Reaction Curve Method for Tuning PID Controllers","authors":"Christer Dalen, D. D. Ruscio","doi":"10.4173/MIC.2018.4.4","DOIUrl":"https://doi.org/10.4173/MIC.2018.4.4","url":null,"abstract":"A novel process-reaction curve method for tuning PID controllers for (possible) higher order processes/models is presented. The proposed method is similar to the Ziegler-Nichols process reaction curve method, viz. only the maximum slope and lag need to be identified from an open loop step response. The relative time delay error (relative delay margin), δ is the tuning parameter. The proposed method is verified through extensive numerical simulations and is found close to optimal in many of the motivated process examples. In order to handle the wide set of process models, two model reduction modes are presented.","PeriodicalId":49801,"journal":{"name":"Modeling Identification and Control","volume":"43 1","pages":"273-291"},"PeriodicalIF":1.7,"publicationDate":"2018-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90863959","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Composite modelling in 3-D mechanics utilizing Transmission Line Modelling (TLM) and Functional Mock-up Interface (FMI) 基于传输线模型(TLM)和功能模型接口(FMI)的三维力学复合建模
IF 1.7 4区 计算机科学
Modeling Identification and Control Pub Date : 2018-01-07 DOI: 10.4173/mic.2018.3.4
D. Fritzson, R. Braun, J. Hartford
{"title":"Composite modelling in 3-D mechanics utilizing Transmission Line Modelling (TLM) and Functional Mock-up Interface (FMI)","authors":"D. Fritzson, R. Braun, J. Hartford","doi":"10.4173/mic.2018.3.4","DOIUrl":"https://doi.org/10.4173/mic.2018.3.4","url":null,"abstract":"Composite modelling and simulation is a solution to utilize investments in models and tools, use the right tool for the right task, increase the accuracy by means of more accurate modelled boundary ...","PeriodicalId":49801,"journal":{"name":"Modeling Identification and Control","volume":"22 1","pages":"179-190"},"PeriodicalIF":1.7,"publicationDate":"2018-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78275489","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
Challenges with Respect to Control of Digital Displacement Hydraulic Units 数字位移液压装置控制方面的挑战
IF 1.7 4区 计算机科学
Modeling Identification and Control Pub Date : 2018-01-04 DOI: 10.4173/MIC.2018.2.4
N. Pedersen, P. Johansen, T. Andersen
{"title":"Challenges with Respect to Control of Digital Displacement Hydraulic Units","authors":"N. Pedersen, P. Johansen, T. Andersen","doi":"10.4173/MIC.2018.2.4","DOIUrl":"https://doi.org/10.4173/MIC.2018.2.4","url":null,"abstract":"This paper investigates the many complications arising when controlling a digital displacement hydraulic machine with non-smooth dynamical behavior. The digital hydraulic machine has a modular construction with numerous independently controlled pressure chambers. For proper control of dynamical systems, a model representation of the systems fundamental dynamics is required for transient analysis and controller design. Since the input is binary (active or inactive) and it may only be updated discretely, the machine comprises both continuous and discrete dynamics and therefore belongs to the class of hybrid dynamical systems. The study shows that the dynamical system behavior and control complexity are greatly dependent on the configuration of the machine, the operation strategy, and in which application it is used. Although the system has non-smooth dynamics, the findings show that simple continuous and discrete approximations may be applicable for control development in certain situations, whereas more advanced hybrid control theory is necessary to cover a broader range of situations.","PeriodicalId":49801,"journal":{"name":"Modeling Identification and Control","volume":"7 1","pages":"91-105"},"PeriodicalIF":1.7,"publicationDate":"2018-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87466969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 10
Parameter-dependent PWQ Lyapunov function stability criteria for uncertain piecewise linear systems 不确定分段线性系统的参数相关PWQ Lyapunov函数稳定性判据
IF 1.7 4区 计算机科学
Modeling Identification and Control Pub Date : 2018-01-01 DOI: 10.4173/MIC.2018.1.2
M. Hovd, Sorin Olaru
{"title":"Parameter-dependent PWQ Lyapunov function stability criteria for uncertain piecewise linear systems","authors":"M. Hovd, Sorin Olaru","doi":"10.4173/MIC.2018.1.2","DOIUrl":"https://doi.org/10.4173/MIC.2018.1.2","url":null,"abstract":"The calculation of piecewise quadratic (PWQ) Lyapunov functions is addressed in view of stability analysis of uncertain piecewise linear dynamics. As main contribution, the linear matrix inequality (LMI) approach proposed in Johansson and Rantzer (1998) for the stability analysis of PWL and PWA dynamics is extended to account for parametric uncertainty based on a improved relaxation technique. The results are applied for the analysis of a Phase Locked Loop (PLL) benchmark and the ability to guarantee a stability region in the parameter space well beyond the state of the art is demonstrated.","PeriodicalId":49801,"journal":{"name":"Modeling Identification and Control","volume":"15 1","pages":"15-21"},"PeriodicalIF":1.7,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84881229","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
A Semi-Heuristic Process-Reaction Curve PID Controller Tuning Method 半启发式过程-反应曲线PID控制器整定方法
IF 1.7 4区 计算机科学
Modeling Identification and Control Pub Date : 2018-01-01 DOI: 10.4173/MIC.2018.1.4
Christer Dalen, D. D. Ruscio
{"title":"A Semi-Heuristic Process-Reaction Curve PID Controller Tuning Method","authors":"Christer Dalen, D. D. Ruscio","doi":"10.4173/MIC.2018.1.4","DOIUrl":"https://doi.org/10.4173/MIC.2018.1.4","url":null,"abstract":"A simple semi-heuristic method for designing PID controllers for time constant models are shown to be close to optimal. A Process-Reaction Curve method is proposed, composed by a method for approximating stable time constant models with an unstable DIPTD model, and relative time delay error δ -PID controller tuning. The Pareto-Optimal controller is used as reference.","PeriodicalId":49801,"journal":{"name":"Modeling Identification and Control","volume":"2673 1","pages":"37-43"},"PeriodicalIF":1.7,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87811743","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Flow Characteristics and Sizing of Annular Seat Valves for Digital Displacement Machines 数字位移机环形阀座阀的流量特性和定径
IF 1.7 4区 计算机科学
Modeling Identification and Control Pub Date : 2018-01-01 DOI: 10.4173/MIC.2018.1.3
C. Nørgård, M. Bech, T. Andersen, Jeppe H. Christensen
{"title":"Flow Characteristics and Sizing of Annular Seat Valves for Digital Displacement Machines","authors":"C. Nørgård, M. Bech, T. Andersen, Jeppe H. Christensen","doi":"10.4173/MIC.2018.1.3","DOIUrl":"https://doi.org/10.4173/MIC.2018.1.3","url":null,"abstract":"This paper investigates the steady-state flow characteristics and power losses of annular seat valves for digital displacement machines. Annular seat valves are promising candidates for active check-valves used in digital displacement fluid power machinery which excels in efficiency in a broad operating range. To achieve high machine efficiency, the valve flow losses and the required electrical power needed for valve switching should be low. The annular valve plunger geometry, of a valve prototype developed for digital displacement machines, is parametrized by three parameters: stroke length, seat radius and seat width. The steady-state flow characteristics are analyzed using static axi-symmetric computational fluid dynamics. The pressure drops and flow forces are mapped in the valve design space for several different flow rates. The simulated results are compared against measurements using a valve prototype. Using the simulated maps to estimate the flow power losses and a simple generic model to estimate the electric power losses, both during digital displacement operation, optimal designs of annular seat valves, with respect to valve power losses, are derived under several different operating conditions.","PeriodicalId":49801,"journal":{"name":"Modeling Identification and Control","volume":"24 1","pages":"23-35"},"PeriodicalIF":1.7,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82435103","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Morphing wing application on Hydra Technologies UAS-S4 变形翼在Hydra Technologies UAS-S4上的应用
IF 1.7 4区 计算机科学
Modeling Identification and Control Pub Date : 2017-02-21 DOI: 10.2316/P.2016.848-048
M. Segui, O. S. Gabor, A. Koreanschi, R. Botez
{"title":"Morphing wing application on Hydra Technologies UAS-S4","authors":"M. Segui, O. S. Gabor, A. Koreanschi, R. Botez","doi":"10.2316/P.2016.848-048","DOIUrl":"https://doi.org/10.2316/P.2016.848-048","url":null,"abstract":"This paper presents the aerodynamic results of a morphing wing study performed on the UAS S4 Ehecatl from Hydra Technologies. Only the cruise phase of the aircraft was considered (constant altitude and constant speed). The difference, from an aerodynamic point of view, between the morphing wing and the original wing was emphasized by computing and comparing their longitudinal aerodynamic coefficients (drag and lift). The computation of the aerodynamic characteristics was done using tornado with the Vortex Lattice Method.","PeriodicalId":49801,"journal":{"name":"Modeling Identification and Control","volume":"67 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2017-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81631352","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Tuning PD and PID Controllers for Double Integrating Plus Time Delay Systems 双积分加时滞系统的PD和PID控制器整定
IF 1.7 4区 计算机科学
Modeling Identification and Control Pub Date : 2017-01-04 DOI: 10.4173/MIC.2017.2.4
D. D. Ruscio, Christer Dalen
{"title":"Tuning PD and PID Controllers for Double Integrating Plus Time Delay Systems","authors":"D. D. Ruscio, Christer Dalen","doi":"10.4173/MIC.2017.2.4","DOIUrl":"https://doi.org/10.4173/MIC.2017.2.4","url":null,"abstract":"An existing method for tuning a PI controller for an integrating plus time delay plant are extended to be used for the design of a PD controller for a double integrating plus time delay plant. The PD controller is extended with integral action and an ideal PID controller is suggested in order to achieve optimality of the closed loop responses. Furthermore, some analytical results concerning the proposed PD and PID controller algorithm regarding the relative time-delay margin are worked out and presented. The algorithm and an existing method are successfully compared against each other on some examples, e.g. the planar movement control of a mariner vessel.","PeriodicalId":49801,"journal":{"name":"Modeling Identification and Control","volume":"106 1","pages":"95-110"},"PeriodicalIF":1.7,"publicationDate":"2017-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76104142","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
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