Pub Date : 2016-04-05DOI: 10.1109/MERCON.2016.7480144
T. Weerasinghe, S. Nanayakkara
Plastic shrinkage cracking is a common phenomenon associated with concreting in hot and windy weather. Excess evaporation of bleed water causes loss of water from the concrete surface and plastic shrinkage occurs due to that at very early stage i.e. within the first 4-6 hours. Tensile strain will be developed as a result of this shrinkage and cracking will occur when it exceeds the tensile strain capacity of concrete. This paper is aimed at developing a model to simulate such behavior and determine the tensile strain development with time. First, key factors affecting shrinkage, bleeding and evaporation, were modelled and the starting time of drying was identified. Subsequent loss of water was calculated and incorporated in a finite element model to simulate the tensile strain development. Calculated strains were very similar to the measured strains and therefore the model can be used to accurately predict the development of early age tensile strain due to plastic shrinkage.
{"title":"Modelling of early age tensile strain development of fresh concrete","authors":"T. Weerasinghe, S. Nanayakkara","doi":"10.1109/MERCON.2016.7480144","DOIUrl":"https://doi.org/10.1109/MERCON.2016.7480144","url":null,"abstract":"Plastic shrinkage cracking is a common phenomenon associated with concreting in hot and windy weather. Excess evaporation of bleed water causes loss of water from the concrete surface and plastic shrinkage occurs due to that at very early stage i.e. within the first 4-6 hours. Tensile strain will be developed as a result of this shrinkage and cracking will occur when it exceeds the tensile strain capacity of concrete. This paper is aimed at developing a model to simulate such behavior and determine the tensile strain development with time. First, key factors affecting shrinkage, bleeding and evaporation, were modelled and the starting time of drying was identified. Subsequent loss of water was calculated and incorporated in a finite element model to simulate the tensile strain development. Calculated strains were very similar to the measured strains and therefore the model can be used to accurately predict the development of early age tensile strain due to plastic shrinkage.","PeriodicalId":184790,"journal":{"name":"2016 Moratuwa Engineering Research Conference (MERCon)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133018035","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}
Pub Date : 2016-04-05DOI: 10.1109/MERCON.2016.7480136
N. Fernando, M. Narayana
Reynolds Averaged Simulation (RAS) and Large Eddy Simulation (LES) are two widely used turbulence modeling approaches in Computational Fluid Dynamics (CFD). RAS simulations require less computing times than used by LES. When large eddies of flow become dominant, RAS simulations cannot predict accurate results. Hybrid RAS-LES approach is effective solution to reduce computational cost and time. In this approach, only parts of flow where larger eddies become dominant are solved using LES, and other areas are resolved using RAS. In order to apply RAS-LES hybrid models, regions of flow where RAS simulation cannot be applied need to be identified. The present work finds the limiting value of angle of attack for a NACA4415 airfoil where RAS simulation can be applied. Simulations were performed using two widely used RAS turbulence models for angles of attacks ranging from -6 to 16.3 degrees. Then results are compared against experimental data. It is found that for NACA4415 airfoil at a Reynolds number of 1.5 million, RAS simulation can be used to successfully predict flow behavior up to an angle of attack of 4.1 degrees. Based on this limiting angle of attack, an approach is suggested for hybrid RAS-LES simulation for a wind turbine.
{"title":"Limiting value of Reynolds Averaged Simulation in numerical prediction of flow over NACA4415 airfoil","authors":"N. Fernando, M. Narayana","doi":"10.1109/MERCON.2016.7480136","DOIUrl":"https://doi.org/10.1109/MERCON.2016.7480136","url":null,"abstract":"Reynolds Averaged Simulation (RAS) and Large Eddy Simulation (LES) are two widely used turbulence modeling approaches in Computational Fluid Dynamics (CFD). RAS simulations require less computing times than used by LES. When large eddies of flow become dominant, RAS simulations cannot predict accurate results. Hybrid RAS-LES approach is effective solution to reduce computational cost and time. In this approach, only parts of flow where larger eddies become dominant are solved using LES, and other areas are resolved using RAS. In order to apply RAS-LES hybrid models, regions of flow where RAS simulation cannot be applied need to be identified. The present work finds the limiting value of angle of attack for a NACA4415 airfoil where RAS simulation can be applied. Simulations were performed using two widely used RAS turbulence models for angles of attacks ranging from -6 to 16.3 degrees. Then results are compared against experimental data. It is found that for NACA4415 airfoil at a Reynolds number of 1.5 million, RAS simulation can be used to successfully predict flow behavior up to an angle of attack of 4.1 degrees. Based on this limiting angle of attack, an approach is suggested for hybrid RAS-LES simulation for a wind turbine.","PeriodicalId":184790,"journal":{"name":"2016 Moratuwa Engineering Research Conference (MERCon)","volume":"151 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123396212","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}
Pub Date : 2016-04-05DOI: 10.1109/MERCON.2016.7480138
A. Mendis, A. Amarasinghe, M. Narayana
This study intends to determine the diffusion coefficient of moisture during hot air drying of copra. A computational fluid dynamic model was used to fine-tune the system parameters with experimental data. Drying experiments were performed in a laboratory scale hot air dryer. Drying rate of copra can be divided into two sub-drying periods, first and second falling rate periods and two significantly different diffusion coefficients were obtained. This study further identified the critical moisture content of 30% as the probable limit between the first and second falling rate periods. The spatial distribution of moisture in the solid phase and the spatial distribution of vapor in the gas phase were also obtained as important findings of this study.
{"title":"Numerical simulation of the moisture diffusion in copra drying process","authors":"A. Mendis, A. Amarasinghe, M. Narayana","doi":"10.1109/MERCON.2016.7480138","DOIUrl":"https://doi.org/10.1109/MERCON.2016.7480138","url":null,"abstract":"This study intends to determine the diffusion coefficient of moisture during hot air drying of copra. A computational fluid dynamic model was used to fine-tune the system parameters with experimental data. Drying experiments were performed in a laboratory scale hot air dryer. Drying rate of copra can be divided into two sub-drying periods, first and second falling rate periods and two significantly different diffusion coefficients were obtained. This study further identified the critical moisture content of 30% as the probable limit between the first and second falling rate periods. The spatial distribution of moisture in the solid phase and the spatial distribution of vapor in the gas phase were also obtained as important findings of this study.","PeriodicalId":184790,"journal":{"name":"2016 Moratuwa Engineering Research Conference (MERCon)","volume":"86 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125018349","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}
Pub Date : 2016-04-05DOI: 10.1109/MERCON.2016.7480177
P. L. Kurukularachchi, S. R. Munasinghe, H. M. P. De Silva
This paper presents on the stability analysis for RAVAN twin boom H-Tail Medium Scale UAV which has been developed by University of Moratuwa. It is required to understand the UAV behavior for the small perturbations in high altitudes while it is flying to be invisible. Indeed, without doing a proper stability analysis in different flying conditions, there is a high risk to fail the UAV for perturbations. Not only that but also it will help to optimize aerodynamic behavior for prolonging the flight endurance and effective deployment. The proper stability analysis will facilitate to increase the control flexibility.XFLR5 computational fluid dynamic software is used to do this stability analysis.
{"title":"Stability analysis for a twin boom H- tail Medium Scale UAV through simulated dynamic model","authors":"P. L. Kurukularachchi, S. R. Munasinghe, H. M. P. De Silva","doi":"10.1109/MERCON.2016.7480177","DOIUrl":"https://doi.org/10.1109/MERCON.2016.7480177","url":null,"abstract":"This paper presents on the stability analysis for RAVAN twin boom H-Tail Medium Scale UAV which has been developed by University of Moratuwa. It is required to understand the UAV behavior for the small perturbations in high altitudes while it is flying to be invisible. Indeed, without doing a proper stability analysis in different flying conditions, there is a high risk to fail the UAV for perturbations. Not only that but also it will help to optimize aerodynamic behavior for prolonging the flight endurance and effective deployment. The proper stability analysis will facilitate to increase the control flexibility.XFLR5 computational fluid dynamic software is used to do this stability analysis.","PeriodicalId":184790,"journal":{"name":"2016 Moratuwa Engineering Research Conference (MERCon)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114537962","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}
Pub Date : 2016-04-05DOI: 10.1109/MERCON.2016.7480168
R. Ramasinghe, G. K. B. M. Gannoruwa, N. Liyanage
Coupling agents are a special category of chemicals used to impart interactions between filler and polymer in polymer industry. Applicability of natural polymers (NPs) as coupling agents for silica filled Carboxylated Actrilonitrile Butadiene rubber (XNBR) latex is evaluated. Cellulose, Gelatin Chitin and Chitosan were used as coupling agents for this investigation. Modification of surface of silica particles with NPs was affected by an in-situ surface modification process. Interactions between polar groups of silica and functional groups of NP which hinder the aggregation of silica particles were confirmed by FTIR spectroscopy. The colloidal stability of the unmodified / modified filler (UMF/MF) dispersions was evaluated by observing the phase separation upon standing. Stability of MF dispersions were found to be better than that of UMF dispersions. The reinforcing ability of silica through the surface modification by NPs was assessed by the evaluation of mechanical properties of XNBR vulcanized latex films filled with modified/unmodified fillers. The filler distribution within the rubber matrix was investigated through a metallurgical microscope by observing the films cross sections. NPs like chitin and gelatin were found to be effective coupling agents for silica probably by discouraging filler/filler interactions while encouraging rubber/filler interactions.
{"title":"Use of surface modified silica in reinforcing carboxylated nitrile rubber latex","authors":"R. Ramasinghe, G. K. B. M. Gannoruwa, N. Liyanage","doi":"10.1109/MERCON.2016.7480168","DOIUrl":"https://doi.org/10.1109/MERCON.2016.7480168","url":null,"abstract":"Coupling agents are a special category of chemicals used to impart interactions between filler and polymer in polymer industry. Applicability of natural polymers (NPs) as coupling agents for silica filled Carboxylated Actrilonitrile Butadiene rubber (XNBR) latex is evaluated. Cellulose, Gelatin Chitin and Chitosan were used as coupling agents for this investigation. Modification of surface of silica particles with NPs was affected by an in-situ surface modification process. Interactions between polar groups of silica and functional groups of NP which hinder the aggregation of silica particles were confirmed by FTIR spectroscopy. The colloidal stability of the unmodified / modified filler (UMF/MF) dispersions was evaluated by observing the phase separation upon standing. Stability of MF dispersions were found to be better than that of UMF dispersions. The reinforcing ability of silica through the surface modification by NPs was assessed by the evaluation of mechanical properties of XNBR vulcanized latex films filled with modified/unmodified fillers. The filler distribution within the rubber matrix was investigated through a metallurgical microscope by observing the films cross sections. NPs like chitin and gelatin were found to be effective coupling agents for silica probably by discouraging filler/filler interactions while encouraging rubber/filler interactions.","PeriodicalId":184790,"journal":{"name":"2016 Moratuwa Engineering Research Conference (MERCon)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126966038","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}
Pub Date : 2016-04-05DOI: 10.1109/MERCON.2016.7480166
A. Zimar, M. H. Nowsath, M. N. Muhammad, S. Herath
Metal foams are used extensively in civil and mechanical engineering applications. However the behaviuor of metal foams under various loading conditions are not well understood. Therefore this study investigates nonlinear behaviour of metal foams under tensile loading using finite element method. The metal foams were modelled using the available Abaqus finite element formulation. Previous experimental results of uniaxial tension behaviour of metal foams were taken to validate the numerical results. In particular, the stress-strain variations were obtained from the numerical model and compared with the experimental results. Agreeable match between experimental and numerical was found.
{"title":"Non-linear behaviour of open-cell metal foam under tensile loading","authors":"A. Zimar, M. H. Nowsath, M. N. Muhammad, S. Herath","doi":"10.1109/MERCON.2016.7480166","DOIUrl":"https://doi.org/10.1109/MERCON.2016.7480166","url":null,"abstract":"Metal foams are used extensively in civil and mechanical engineering applications. However the behaviuor of metal foams under various loading conditions are not well understood. Therefore this study investigates nonlinear behaviour of metal foams under tensile loading using finite element method. The metal foams were modelled using the available Abaqus finite element formulation. Previous experimental results of uniaxial tension behaviour of metal foams were taken to validate the numerical results. In particular, the stress-strain variations were obtained from the numerical model and compared with the experimental results. Agreeable match between experimental and numerical was found.","PeriodicalId":184790,"journal":{"name":"2016 Moratuwa Engineering Research Conference (MERCon)","volume":"130 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127382687","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}
Pub Date : 2016-04-05DOI: 10.1109/MERCON.2016.7480179
U. Premaratne
Memory Based Event Triggering (MBET) is a pragmatic approach to reduce the effective sampling rate of a control system. In MBET, periodically sampled state variables and control inputs are encoded such that data transmission takes place only when they change by a value that exceeds a predetermined threshold. This results in a significant reduction of network traffic in Networked Control Systems (NCS). Should MBET encoding result in an asymptotic cyclic behavior (limit cycle like behavior), it would result in a lower bound in the required bandwidth. In this paper, the necessary conditions for the formation of such a cycle are investigated. It is demonstrated analytically as well as through empirical simulations that the main requirement for the occurrence of asymptotic dynamic cycles is a diffeomorphism between a scalar control input and a unique equilibrium point to which the system will converge to for a constant control input.
{"title":"Limit cycle like asymptotic dynamics in feedback loops with Memory Based Event Triggering","authors":"U. Premaratne","doi":"10.1109/MERCON.2016.7480179","DOIUrl":"https://doi.org/10.1109/MERCON.2016.7480179","url":null,"abstract":"Memory Based Event Triggering (MBET) is a pragmatic approach to reduce the effective sampling rate of a control system. In MBET, periodically sampled state variables and control inputs are encoded such that data transmission takes place only when they change by a value that exceeds a predetermined threshold. This results in a significant reduction of network traffic in Networked Control Systems (NCS). Should MBET encoding result in an asymptotic cyclic behavior (limit cycle like behavior), it would result in a lower bound in the required bandwidth. In this paper, the necessary conditions for the formation of such a cycle are investigated. It is demonstrated analytically as well as through empirical simulations that the main requirement for the occurrence of asymptotic dynamic cycles is a diffeomorphism between a scalar control input and a unique equilibrium point to which the system will converge to for a constant control input.","PeriodicalId":184790,"journal":{"name":"2016 Moratuwa Engineering Research Conference (MERCon)","volume":"4 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129167282","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}
Pub Date : 2016-04-05DOI: 10.1109/MERCON.2016.7480115
B. Basnayake, W. Jayathilaka, Y. Amarasinghe, R. Attalage, A. Jayasekara
On-site photovoltaic efficiency data is a valuable asset during a process of predicting photovoltaic potential. Not just the solar power output, but also the ambient conditions and panel temperature should be measured for a better and convinced results. Due to the unavailability of on-site data, erroneous conclusions have been made after various prediction methods. Smart solar tracking and on-site photovoltaic measurement system is proposed as a novel tool to be used in solar potential predictions which can measure and log on-site solar data. This device is capable of measuring and logging available solar power together with ambient measurements such as light intensity level, ambient temperature and humidity level and panel temperature. Measured data will then be stored in an internal memory card and will be available at any moment. Integrated wireless communication module will enable remote log-in and control of the device. Computer based Graphical User Interface (GUI) software application enables the remote access to the gathered data and optimization of its operation.
{"title":"Smart solar tracking and on-site photovoltic efficiency measurement system","authors":"B. Basnayake, W. Jayathilaka, Y. Amarasinghe, R. Attalage, A. Jayasekara","doi":"10.1109/MERCON.2016.7480115","DOIUrl":"https://doi.org/10.1109/MERCON.2016.7480115","url":null,"abstract":"On-site photovoltaic efficiency data is a valuable asset during a process of predicting photovoltaic potential. Not just the solar power output, but also the ambient conditions and panel temperature should be measured for a better and convinced results. Due to the unavailability of on-site data, erroneous conclusions have been made after various prediction methods. Smart solar tracking and on-site photovoltaic measurement system is proposed as a novel tool to be used in solar potential predictions which can measure and log on-site solar data. This device is capable of measuring and logging available solar power together with ambient measurements such as light intensity level, ambient temperature and humidity level and panel temperature. Measured data will then be stored in an internal memory card and will be available at any moment. Integrated wireless communication module will enable remote log-in and control of the device. Computer based Graphical User Interface (GUI) software application enables the remote access to the gathered data and optimization of its operation.","PeriodicalId":184790,"journal":{"name":"2016 Moratuwa Engineering Research Conference (MERCon)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129805363","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}
Pub Date : 2016-04-05DOI: 10.1109/MERCON.2016.7480114
A. T. A. D. De Silva, D. D. De Silva, K. D. C. J. Perera, A. M. B. Priyashantha, L. L. Ruwan Sampath, P. Darshan, W. Jayathilaka, Y. Amarasinghe
It is essential for the Micro Electro Mechanical Systems (MEMS) research industry to introduce novel concepts of micro motors to overcome problems in existing micro motors. This paper propose a novel concept of a micro motor using kink actuators and reciprocating rack and pinion assembly. Design details of the reciprocating rack and pinion is discussed in the paper. A detailed analysis of structural, transient, thermal, electrical properties was performed using the COMSOL software is also discussed. Finally a fabrication method is purposed using electron beam lithography and ultraviolet lithography.
{"title":"A novel MEMS motor based on thermal actuation","authors":"A. T. A. D. De Silva, D. D. De Silva, K. D. C. J. Perera, A. M. B. Priyashantha, L. L. Ruwan Sampath, P. Darshan, W. Jayathilaka, Y. Amarasinghe","doi":"10.1109/MERCON.2016.7480114","DOIUrl":"https://doi.org/10.1109/MERCON.2016.7480114","url":null,"abstract":"It is essential for the Micro Electro Mechanical Systems (MEMS) research industry to introduce novel concepts of micro motors to overcome problems in existing micro motors. This paper propose a novel concept of a micro motor using kink actuators and reciprocating rack and pinion assembly. Design details of the reciprocating rack and pinion is discussed in the paper. A detailed analysis of structural, transient, thermal, electrical properties was performed using the COMSOL software is also discussed. Finally a fabrication method is purposed using electron beam lithography and ultraviolet lithography.","PeriodicalId":184790,"journal":{"name":"2016 Moratuwa Engineering Research Conference (MERCon)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121422118","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}
Pub Date : 2016-04-05DOI: 10.1109/MERCON.2016.7480147
S. Bolonne, A. K. K. Chanaka, G. C. Jayawardhana, I. Lionel, D. P. Chandima
Wireless power transmission concept has being revolutionary emerging against the conventional charging methods of consumer electronics. In this paper, we present the concept of wireless power transmission for multiple devices. Simultaneous wireless power transmission via resonant inductive coupling is experimentally demonstrated for a system with single transmitter and two receivers. Resonance between source and load is achieved with lumped capacitors connecting the coils. The circuit design is developed to describe a system with a single receiver, and extended to describe the system with two receivers.
{"title":"Wireless power transmission for multiple devices","authors":"S. Bolonne, A. K. K. Chanaka, G. C. Jayawardhana, I. Lionel, D. P. Chandima","doi":"10.1109/MERCON.2016.7480147","DOIUrl":"https://doi.org/10.1109/MERCON.2016.7480147","url":null,"abstract":"Wireless power transmission concept has being revolutionary emerging against the conventional charging methods of consumer electronics. In this paper, we present the concept of wireless power transmission for multiple devices. Simultaneous wireless power transmission via resonant inductive coupling is experimentally demonstrated for a system with single transmitter and two receivers. Resonance between source and load is achieved with lumped capacitors connecting the coils. The circuit design is developed to describe a system with a single receiver, and extended to describe the system with two receivers.","PeriodicalId":184790,"journal":{"name":"2016 Moratuwa Engineering Research Conference (MERCon)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132007420","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：