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2015 World Symposium on Mechatronics Engineering & Applied Physics (WSMEAP)最新文献

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Numerical simulation of convective heat transfer in tube with wire coil inserts 带线圈插片管内对流换热的数值模拟
2015 World Symposium on Mechatronics Engineering & Applied Physics (WSMEAP) Pub Date : 2015-06-11 DOI: 10.1109/WSMEAP.2015.7338214
S. Agrebi, J. Solano, A. Snoussi, Ammar ben Brahim
{"title":"Numerical simulation of convective heat transfer in tube with wire coil inserts","authors":"S. Agrebi, J. Solano, A. Snoussi, Ammar ben Brahim","doi":"10.1109/WSMEAP.2015.7338214","DOIUrl":"https://doi.org/10.1109/WSMEAP.2015.7338214","url":null,"abstract":"This paper presents an analysis of the heat transfer characteristics of a wire coil insert fitted inside heat exchanger tube. Three-dimensional numerical simulation laminar flow that develop into smooth round pipe of diameter D=7mm, with wire coil insert of helical pitch, p=8.75mm, and diameter, e=0.532mm, have been accomplished using CFD software-Fluent v6.3.26. The friction factor and the heat transfer behaviors with the wire coil insert use are investigated. The effect of the Rayleigh, the Prandtl numbers, the inclination angle on the heat transfer are quantified and discussed for the smooth and wire coiled tubes. Results show that the implementation of wire coil insert guarantees higher heat transfer rate and increase in the friction.","PeriodicalId":261624,"journal":{"name":"2015 World Symposium on Mechatronics Engineering & Applied Physics (WSMEAP)","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132373846","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
Analysis and synthesis of robust iterative learning control for linear continuous systems based on 2D theory 基于二维理论的线性连续系统鲁棒迭代学习控制分析与综合
2015 World Symposium on Mechatronics Engineering & Applied Physics (WSMEAP) Pub Date : 2015-06-11 DOI: 10.1109/WSMEAP.2015.7338203
O. Kouki, C. Mnasri, M. Gasmi
{"title":"Analysis and synthesis of robust iterative learning control for linear continuous systems based on 2D theory","authors":"O. Kouki, C. Mnasri, M. Gasmi","doi":"10.1109/WSMEAP.2015.7338203","DOIUrl":"https://doi.org/10.1109/WSMEAP.2015.7338203","url":null,"abstract":"We present in this paper the analysis and the synthesis of robust iterative learning control RILC for linear continuous system based on H∞ approach. The two dimensional 2D systems are studied here to improve the monotonically convergence and to prove the efficiency of the proposed approach. Linear matrix inequality LMI techniques are also used to compute the P type RILC algorithm.","PeriodicalId":261624,"journal":{"name":"2015 World Symposium on Mechatronics Engineering & Applied Physics (WSMEAP)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121706655","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
Modeling of reactive impedance surface's diffraction with application of MoM-GEC method 应用MoM-GEC法模拟无功阻抗表面的衍射
2015 World Symposium on Mechatronics Engineering & Applied Physics (WSMEAP) Pub Date : 2015-06-11 DOI: 10.1109/WSMEAP.2015.7338204
M. Hajji, M. Aidi, T. Aguili
{"title":"Modeling of reactive impedance surface's diffraction with application of MoM-GEC method","authors":"M. Hajji, M. Aidi, T. Aguili","doi":"10.1109/WSMEAP.2015.7338204","DOIUrl":"https://doi.org/10.1109/WSMEAP.2015.7338204","url":null,"abstract":"In this paper, we propose the study of reactive impedance surface (RIS), used especially as reflector for antenna miniaturization, with MoM-GEC method. The electromagnetic modeling using integral methods, such as MoM-GEC, is of great interest because they are the most appropriate to study planar structures, since they provide the reduction of the problem's dimension. Hence, they permit the gain in memory storage and computational time. In this context, we study with details the behavior of RIS against incidence and polarization. Numerical results are shown, discussed and compared with literature and FSS software.","PeriodicalId":261624,"journal":{"name":"2015 World Symposium on Mechatronics Engineering & Applied Physics (WSMEAP)","volume":"447 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125773752","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
Parameters identification of the PEM fuel cell impedance model PEM燃料电池阻抗模型参数辨识
2015 World Symposium on Mechatronics Engineering & Applied Physics (WSMEAP) Pub Date : 2015-06-11 DOI: 10.1109/WSMEAP.2015.7338211
Mohamed Selmene Ben Yahia, H. Allagui, A. Mami
{"title":"Parameters identification of the PEM fuel cell impedance model","authors":"Mohamed Selmene Ben Yahia, H. Allagui, A. Mami","doi":"10.1109/WSMEAP.2015.7338211","DOIUrl":"https://doi.org/10.1109/WSMEAP.2015.7338211","url":null,"abstract":"This work focuses on the modeling and the identification of the parameters of the impedance model of a PEM fuel cell. It is based on the Randles model represented by specific complex impedance at each cell. We have used the \"Least square\" method to determine the parameters model using measured reference values. The proposed authentication method is valid for Randles model, but it can be generalized to be applied to others.","PeriodicalId":261624,"journal":{"name":"2015 World Symposium on Mechatronics Engineering & Applied Physics (WSMEAP)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134417619","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
Time domain electromagnetic inverse method for non-sinusoidal circuits 非正弦电路的时域电磁反演方法
2015 World Symposium on Mechatronics Engineering & Applied Physics (WSMEAP) Pub Date : 2015-06-11 DOI: 10.1109/WSMEAP.2015.7338206
B. Zitouna, J. Ben Hadj Slama
{"title":"Time domain electromagnetic inverse method for non-sinusoidal circuits","authors":"B. Zitouna, J. Ben Hadj Slama","doi":"10.1109/WSMEAP.2015.7338206","DOIUrl":"https://doi.org/10.1109/WSMEAP.2015.7338206","url":null,"abstract":"In this paper, we propose a new method of an electromagnetic compatibility study. The electromagnetic inverse method in the time domain is proposed to analyze the electromagnetic radiation of power electronic circuits which emit signals that are not sinusoidal. Using measured near-field cartography above the studied circuit, the method, based on genetic algorithms, consists in identifying the dipole sources. To validate the proposed method, we have applied it to theoretical temporal signals emitted by the known electric and magnetic dipoles. The obtained results show a good agreement between the cartography of the near magnetic field, obtained by the developed model, and the calculated one. The results allow us to conclude that the proposed method is suitable for the identification of equivalent-source structures excited by different current forms.","PeriodicalId":261624,"journal":{"name":"2015 World Symposium on Mechatronics Engineering & Applied Physics (WSMEAP)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129995770","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: 6
Practical stability for a class of nonlinear time varying systems including delayed perturbation 一类含时滞摄动的非线性时变系统的实际稳定性
2015 World Symposium on Mechatronics Engineering & Applied Physics (WSMEAP) Pub Date : 2015-06-11 DOI: 10.1109/WSMEAP.2015.7338209
O. Naifar, A. Ben Makhlouf, M. Hammami
{"title":"Practical stability for a class of nonlinear time varying systems including delayed perturbation","authors":"O. Naifar, A. Ben Makhlouf, M. Hammami","doi":"10.1109/WSMEAP.2015.7338209","DOIUrl":"https://doi.org/10.1109/WSMEAP.2015.7338209","url":null,"abstract":"In this paper we deal with the stability analysis problem of a class of nonautonomous delayed nonlinear systems. Using a Lyapunov-Krasovskii functional, some stability conditions are formulated and the practical stability of the proposed system is proved. Finally, illustrative examples with simulation results are given to demonstrate the validity of the result.","PeriodicalId":261624,"journal":{"name":"2015 World Symposium on Mechatronics Engineering & Applied Physics (WSMEAP)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122032713","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 robust dynamic controller with observer for the tracking of a ZMP reference trajectory: A biped robot's walking under constraints 带观测器的ZMP参考轨迹跟踪鲁棒动态控制器:约束下两足机器人的行走
2015 World Symposium on Mechatronics Engineering & Applied Physics (WSMEAP) Pub Date : 2015-06-11 DOI: 10.1109/WSMEAP.2015.7338205
Mohamed Adel Sellami, Imen Dakhli, E. Maherzi, M. Besbes
{"title":"A robust dynamic controller with observer for the tracking of a ZMP reference trajectory: A biped robot's walking under constraints","authors":"Mohamed Adel Sellami, Imen Dakhli, E. Maherzi, M. Besbes","doi":"10.1109/WSMEAP.2015.7338205","DOIUrl":"https://doi.org/10.1109/WSMEAP.2015.7338205","url":null,"abstract":"In this work, we propose a novel robust dynamic controller in order to stabilize a walking biped robot with input and output constraints. Firstly, the trajectory of the robot is generated via the Zero Moment Point method based on the resolution of a convex optimization problem with Linear Matrix Inequalities. Then, the tracking of a referential trajectory is insured by the design of an optimal dynamic controller with predictive control theory. The synthesized dynamic controller allows the Lyapunov stability of the robot's walk. Moreover, it ensures the reducing of the overshoot and undershoot of the output signal, difficult to be adjusted by classical methods. This work is validated by a simulation via Matlab of some illustrative examples and results highlight the efficiency of the proposed study.","PeriodicalId":261624,"journal":{"name":"2015 World Symposium on Mechatronics Engineering & Applied Physics (WSMEAP)","volume":"316 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122783466","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
Influence of the variation of the boost converter parameters on the bifurcation phenomenon 升压变换器参数变化对分岔现象的影响
2015 World Symposium on Mechatronics Engineering & Applied Physics (WSMEAP) Pub Date : 2015-06-11 DOI: 10.1109/WSMEAP.2015.7338217
Salwa Ben Said, K. Ben Saad, M. Benrejeb
{"title":"Influence of the variation of the boost converter parameters on the bifurcation phenomenon","authors":"Salwa Ben Said, K. Ben Saad, M. Benrejeb","doi":"10.1109/WSMEAP.2015.7338217","DOIUrl":"https://doi.org/10.1109/WSMEAP.2015.7338217","url":null,"abstract":"This paper deals with bifurcation analyses in current programmed DC/DC Boost converter and exhibition of chaotic behavior. This phenomenon occurs due to variation of a set of the studied circuit parameters (input voltage and a reference current). Two different kinds of bifurcation paths have been observed as part of another bifurcation, arising from variation of suitable chosen parameter.","PeriodicalId":261624,"journal":{"name":"2015 World Symposium on Mechatronics Engineering & Applied Physics (WSMEAP)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132838903","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
Modeling the evolution of conducted EMI of a buck converter after N-MOS transistor aging 模拟N-MOS晶体管老化后降压变换器传导EMI的演化
2015 World Symposium on Mechatronics Engineering & Applied Physics (WSMEAP) Pub Date : 2015-06-11 DOI: 10.1109/WSMEAP.2015.7338213
M. Tlig, J. Ben Hadj Slama
{"title":"Modeling the evolution of conducted EMI of a buck converter after N-MOS transistor aging","authors":"M. Tlig, J. Ben Hadj Slama","doi":"10.1109/WSMEAP.2015.7338213","DOIUrl":"https://doi.org/10.1109/WSMEAP.2015.7338213","url":null,"abstract":"In this paper, we propose a method to model the Conducted ElectroMagnetic Interference variation (ACEMI) generated by a DC / DC converter based on a MOSFET according to an accelerated aging time. A relation between the ACEMI and the threshold voltage variation (AVtn) is determined by simulation, using a SPICE MOSFET model. Through the literature researches and the measurements we determine the equation that express the AVth according the aging time (T). Thereafter, a comparison between the simulation results and the experimental results are presented in order to validate the proposed model that relates the ACEMI to the aging time (T). This model has been developed to predict the ACEMI generated by a buck converter using a power MOSFET.","PeriodicalId":261624,"journal":{"name":"2015 World Symposium on Mechatronics Engineering & Applied Physics (WSMEAP)","volume":"123 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133407209","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
Convective and radiative heat loss impact on CO2 emission, O2 depletion and thermal stability in a reactive slab of variable thermal conductivity 对流和辐射热损失对变导热反应板中CO2排放、O2损耗和热稳定性的影响
2015 World Symposium on Mechatronics Engineering & Applied Physics (WSMEAP) Pub Date : 1900-01-01 DOI: 10.1109/wsmeap.2015.7338218
R. Lebelo
{"title":"Convective and radiative heat loss impact on CO2 emission, O2 depletion and thermal stability in a reactive slab of variable thermal conductivity","authors":"R. Lebelo","doi":"10.1109/wsmeap.2015.7338218","DOIUrl":"https://doi.org/10.1109/wsmeap.2015.7338218","url":null,"abstract":"The impact of convective and radiative heat loss on CO2 emission, O2 depletion and thermal stability in a reactive stockpile of combustible materials is investigated. A rectangular slab of variable thermal conductivity is applied to study the reaction taking place in a stockpile. It is assumed that the slab's surface temperature is uniform throughout. Runge-Kutta-Fehlberg (RKF45) method coupled with shooting technique is applied to solve numerically derived governing equations for heat and mass transfer problem. Nusselt and Sherwood numbers at the material surface are obtained from numerical expressions for temperature fields. Graphical expressions for O2 emission, O2 depletion and temperature behavior are obtained to study and discuss quantitatively the effects of various thermo-physical parameters on CO2, O2 and thermal stability. Thermo-physical parameters that help to reduce CO2 emission and hence O2 preservation, are identified, including those which help spontaneous combustion processes from explosions.","PeriodicalId":261624,"journal":{"name":"2015 World Symposium on Mechatronics Engineering & Applied Physics (WSMEAP)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125241343","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: 3
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