Pub Date : 2010-10-07DOI: 10.1109/ICMET.2010.5598342
V. Panwar
This paper presents a Lyapunov based approach to design an asymptotic trajectory tracking controller for robot manipulator using RBF neural network and an adaptive bound on disturbance terms. The controller is composed of computed torque type part, RBF network and an adaptive controller. The controller is able to learn the existing structured and unstructured uncertainties in the system in online manner. The RBF network learns the unknown part of the robot dynamics with no requirement of the offline training. The adaptive controller is used to estimate the unknown bounds on unstructured uncertainties and neural network reconstruction error. The overall system is proved to be asymptotically stable. Finally, the simulation results are performed on a Microbot type of manipulator to show the effectiveness of the controller.
{"title":"Asymptotic trajectory tracking for a robot manipulator using RBF neural network and adaptive bound on disturbances","authors":"V. Panwar","doi":"10.1109/ICMET.2010.5598342","DOIUrl":"https://doi.org/10.1109/ICMET.2010.5598342","url":null,"abstract":"This paper presents a Lyapunov based approach to design an asymptotic trajectory tracking controller for robot manipulator using RBF neural network and an adaptive bound on disturbance terms. The controller is composed of computed torque type part, RBF network and an adaptive controller. The controller is able to learn the existing structured and unstructured uncertainties in the system in online manner. The RBF network learns the unknown part of the robot dynamics with no requirement of the offline training. The adaptive controller is used to estimate the unknown bounds on unstructured uncertainties and neural network reconstruction error. The overall system is proved to be asymptotically stable. Finally, the simulation results are performed on a Microbot type of manipulator to show the effectiveness of the controller.","PeriodicalId":415118,"journal":{"name":"2010 International Conference on Mechanical and Electrical Technology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130112665","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 : 2010-10-07DOI: 10.1109/ICMET.2010.5598418
Mohsen Sedighi, Arazghlich Igderi, Aliakbar Dankoob, S. M. Abedi
Distributed Generation (DG) generally means power generation in consumption locality. But sometimes, it told technologies that use renewable energies for power generation. This paper presents a method for optimal sitting and sizing of DG in distribution systems. In this paper, our aim would be optimal distributed generation allocation and sizing for several parameters, include: voltage profile improvement, loss reduction, and THD (Total Harmonic Distortion) reduction in distribution networks. Particle Swarm Optimization (PSO) is used as the solving tool, which referring determined aim, the problem is defined and the objective function is introduced. Considering the fitness values sensitivity in PSO algorithm process, it is needed to apply load flow and harmonic calculations for decision-making. Finally, the feasibility of the proposed method is demonstrated for typical distribution network, and it is compared with the GA method in terms of the solution quality and computation efficiency. The experimental results show that the proposed PSO method is indeed capable of obtaining higher quality solutions efficiently.
{"title":"Sitting and sizing of DG in distribution network to improve of several parameters by PSO algorithm","authors":"Mohsen Sedighi, Arazghlich Igderi, Aliakbar Dankoob, S. M. Abedi","doi":"10.1109/ICMET.2010.5598418","DOIUrl":"https://doi.org/10.1109/ICMET.2010.5598418","url":null,"abstract":"Distributed Generation (DG) generally means power generation in consumption locality. But sometimes, it told technologies that use renewable energies for power generation. This paper presents a method for optimal sitting and sizing of DG in distribution systems. In this paper, our aim would be optimal distributed generation allocation and sizing for several parameters, include: voltage profile improvement, loss reduction, and THD (Total Harmonic Distortion) reduction in distribution networks. Particle Swarm Optimization (PSO) is used as the solving tool, which referring determined aim, the problem is defined and the objective function is introduced. Considering the fitness values sensitivity in PSO algorithm process, it is needed to apply load flow and harmonic calculations for decision-making. Finally, the feasibility of the proposed method is demonstrated for typical distribution network, and it is compared with the GA method in terms of the solution quality and computation efficiency. The experimental results show that the proposed PSO method is indeed capable of obtaining higher quality solutions efficiently.","PeriodicalId":415118,"journal":{"name":"2010 International Conference on Mechanical and Electrical Technology","volume":"128 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129943686","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 : 2010-10-07DOI: 10.1109/ICMET.2010.5598379
D. Adhyaru, J. Patel, Rishi Gianchandani
Robot manipulators have become increasingly important in the field of flexible automation. Through the years considerable research effort has been made in their controller design. In order to achieve accurate trajectory tracking and good control performance, a number of control schemes have been developed. Amongst these, ANFIS (Adaptive Neuro-Fuzzy Inference System) has provided best results for control of robotic manipulators as compared to the conventional control strategies.
{"title":"Adaptive Neuro-Fuzzy Inference System based control of robotic manipulators","authors":"D. Adhyaru, J. Patel, Rishi Gianchandani","doi":"10.1109/ICMET.2010.5598379","DOIUrl":"https://doi.org/10.1109/ICMET.2010.5598379","url":null,"abstract":"Robot manipulators have become increasingly important in the field of flexible automation. Through the years considerable research effort has been made in their controller design. In order to achieve accurate trajectory tracking and good control performance, a number of control schemes have been developed. Amongst these, ANFIS (Adaptive Neuro-Fuzzy Inference System) has provided best results for control of robotic manipulators as compared to the conventional control strategies.","PeriodicalId":415118,"journal":{"name":"2010 International Conference on Mechanical and Electrical Technology","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124610291","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 : 2010-10-07DOI: 10.1109/ICMET.2010.5598486
M. Kotambkar
In case of a low pressure steam turbine the crack like flaws due to low cycle fatigue (LCF) is one of the main reasons for its premature failure as reported by various researchers. Non destructive testing (NDT) methods like dye penetrate, magnetic particle induction, acoustic, ultrasonic etc. are used for detection of crack which are very costly and time consuming task. Also vicinity of the fault has to be known beforehand and area has to be readily accessible. Since last two decades lot of research has been done in using vibration analysis to detect crack in beams by using modal parameters like natural frequency, mode shape, damping etc. In this research work an attempt is made to extend vibration characteristic based method for detection of crack in turbine blade. The finite element method is used with development of stiffness matrix for cracked element from the theory of linear elastic fracture mechanics
{"title":"Exploring vibration based method for crack detection in turbine blade","authors":"M. Kotambkar","doi":"10.1109/ICMET.2010.5598486","DOIUrl":"https://doi.org/10.1109/ICMET.2010.5598486","url":null,"abstract":"In case of a low pressure steam turbine the crack like flaws due to low cycle fatigue (LCF) is one of the main reasons for its premature failure as reported by various researchers. Non destructive testing (NDT) methods like dye penetrate, magnetic particle induction, acoustic, ultrasonic etc. are used for detection of crack which are very costly and time consuming task. Also vicinity of the fault has to be known beforehand and area has to be readily accessible. Since last two decades lot of research has been done in using vibration analysis to detect crack in beams by using modal parameters like natural frequency, mode shape, damping etc. In this research work an attempt is made to extend vibration characteristic based method for detection of crack in turbine blade. The finite element method is used with development of stiffness matrix for cracked element from the theory of linear elastic fracture mechanics","PeriodicalId":415118,"journal":{"name":"2010 International Conference on Mechanical and Electrical Technology","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121198397","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 : 2010-10-07DOI: 10.1109/ICMET.2010.5598378
Kou Ziming, Wu Juan
The studies and experiments of hydraulic wave exciting mechanics play an important role for the development and application of new hydraulic vibrating machine. A new hydraulic wave exciting pattern using water-hammer is proposed, and the hydraulic water-hammer exciting system is built. The pressure-time change rule of the water-hammer exciting system is obtained by experimental research, and the time-domain analysis shows that the periodity of pressure fluctuation is controlled by wave-exciter. Moreover, the experimental results show that the periodic controllable hydraulic water-hammer wave generated by the system can be used as an exciting force. The excitation mechanics on hydraulic water-hammer has been discussed, and a new path is provided for the application of hydraulic vibrating machine.
{"title":"Study on vibration test system excited by water -hammer","authors":"Kou Ziming, Wu Juan","doi":"10.1109/ICMET.2010.5598378","DOIUrl":"https://doi.org/10.1109/ICMET.2010.5598378","url":null,"abstract":"The studies and experiments of hydraulic wave exciting mechanics play an important role for the development and application of new hydraulic vibrating machine. A new hydraulic wave exciting pattern using water-hammer is proposed, and the hydraulic water-hammer exciting system is built. The pressure-time change rule of the water-hammer exciting system is obtained by experimental research, and the time-domain analysis shows that the periodity of pressure fluctuation is controlled by wave-exciter. Moreover, the experimental results show that the periodic controllable hydraulic water-hammer wave generated by the system can be used as an exciting force. The excitation mechanics on hydraulic water-hammer has been discussed, and a new path is provided for the application of hydraulic vibrating machine.","PeriodicalId":415118,"journal":{"name":"2010 International Conference on Mechanical and Electrical Technology","volume":"135 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126729353","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 : 2010-10-07DOI: 10.1109/ICMET.2010.5598446
Changzhi Ji, Xin Zhang, Min Jiang, Peng Yan
Local head loss coefficients of the 90°-bend pipeline for Hydraulic calculation in engineering is empirical value and formula normally experimentally. The values may vary about 2 to 4 times because of the different experimental conditions. This will bring large error for the accurately calculation of the local head loss. Numerical simulation was applied on the pipe with 90° bend that widely used in engineering field. The local head loss coefficients of five types of bends including 1/4 circular arc and 1/4 ellipse with different radius combination were compared. The affected length of local head loss coefficient in the downstream straight sections of the geometric bend was analyzed. Result show that circular arc bend has less local head loss than that of the ellipse and the hydraulic performance of 1/4 circular arc is optimal when fully considering the local head loss at the straight sections of bend downstream. Over 90% local head losses occur at the downstream straight sections, of which affected length is 40 times of the pipe diameter. This fact is independent of the variation of water velocity and the duct diameter.
{"title":"Numerical simulation of influence of 90°-bend pipeline geometric shape on local loss coefficient","authors":"Changzhi Ji, Xin Zhang, Min Jiang, Peng Yan","doi":"10.1109/ICMET.2010.5598446","DOIUrl":"https://doi.org/10.1109/ICMET.2010.5598446","url":null,"abstract":"Local head loss coefficients of the 90°-bend pipeline for Hydraulic calculation in engineering is empirical value and formula normally experimentally. The values may vary about 2 to 4 times because of the different experimental conditions. This will bring large error for the accurately calculation of the local head loss. Numerical simulation was applied on the pipe with 90° bend that widely used in engineering field. The local head loss coefficients of five types of bends including 1/4 circular arc and 1/4 ellipse with different radius combination were compared. The affected length of local head loss coefficient in the downstream straight sections of the geometric bend was analyzed. Result show that circular arc bend has less local head loss than that of the ellipse and the hydraulic performance of 1/4 circular arc is optimal when fully considering the local head loss at the straight sections of bend downstream. Over 90% local head losses occur at the downstream straight sections, of which affected length is 40 times of the pipe diameter. This fact is independent of the variation of water velocity and the duct diameter.","PeriodicalId":415118,"journal":{"name":"2010 International Conference on Mechanical and Electrical Technology","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128441320","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 : 2010-10-07DOI: 10.1109/ICMET.2010.5598480
Zhongyi Mei, Y. Wang
NC machining distortion theory is studied by analyzing the typical aircraft wing rib aluminum alloy structural part. The reasons which lead to machining distortion are accounted for. The research method and process of theoretical model, finite element analysis and milling experiment are presented. The effect of residual stresses on machining distortion which distribute in the aircraft structure part is analyzed. The initial residual stress distribution which generated from material heat treatment is simulated by using thermal-mechanical coupling analysis of the FEM software. Cutting simulation is executed by exploiting the static element deactivation technique. The element is deactivated via Birth/Death feature in ANSYS software. The distortion results generated by the machining simulation are compared with the actual machining data. It appears that both distortion trends are consistent. The validity of the analysis method and the finite element analysis model is verified. Several methods which can be used to predicting and controlling machining distortion are proposed.
{"title":"Analyzing distortion of aircraft Structural part in NC machining based on FEM simulation","authors":"Zhongyi Mei, Y. Wang","doi":"10.1109/ICMET.2010.5598480","DOIUrl":"https://doi.org/10.1109/ICMET.2010.5598480","url":null,"abstract":"NC machining distortion theory is studied by analyzing the typical aircraft wing rib aluminum alloy structural part. The reasons which lead to machining distortion are accounted for. The research method and process of theoretical model, finite element analysis and milling experiment are presented. The effect of residual stresses on machining distortion which distribute in the aircraft structure part is analyzed. The initial residual stress distribution which generated from material heat treatment is simulated by using thermal-mechanical coupling analysis of the FEM software. Cutting simulation is executed by exploiting the static element deactivation technique. The element is deactivated via Birth/Death feature in ANSYS software. The distortion results generated by the machining simulation are compared with the actual machining data. It appears that both distortion trends are consistent. The validity of the analysis method and the finite element analysis model is verified. Several methods which can be used to predicting and controlling machining distortion are proposed.","PeriodicalId":415118,"journal":{"name":"2010 International Conference on Mechanical and Electrical Technology","volume":"7 17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127037866","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 : 2010-10-07DOI: 10.1109/ICMET.2010.5598463
Xiao-qing Yuan, Yi-kai Shi, Dang Jian-hui
A brief general introduction to a novel low energy electron-exoelectron was given. Various emission methods of induced solid were involved. More detailed consideration was given to these following topics: classification of exoelectron emission mechanisms; emission models of exoelectron; applications of exoelectron; the appplication of metal micro-crack predicting by low energy electron technology was especially described; and finally many issues demanding prompt solution for low energy electron technology were proposed.
{"title":"Low energy electron technology study","authors":"Xiao-qing Yuan, Yi-kai Shi, Dang Jian-hui","doi":"10.1109/ICMET.2010.5598463","DOIUrl":"https://doi.org/10.1109/ICMET.2010.5598463","url":null,"abstract":"A brief general introduction to a novel low energy electron-exoelectron was given. Various emission methods of induced solid were involved. More detailed consideration was given to these following topics: classification of exoelectron emission mechanisms; emission models of exoelectron; applications of exoelectron; the appplication of metal micro-crack predicting by low energy electron technology was especially described; and finally many issues demanding prompt solution for low energy electron technology were proposed.","PeriodicalId":415118,"journal":{"name":"2010 International Conference on Mechanical and Electrical Technology","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130881217","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 : 2010-10-07DOI: 10.1109/ICMET.2010.5598443
Jianwei Wang, Hui Xu
A new passive vibration control has been put forward and applied to a flexible beam under the principal resonant harmonic excitation by using inlaid viscous fluid unit (IVFU). For the liquid-solid coupling model, a new algorithm is proposed that it is approximately transformed into a pure hydrokinetic model via constructing a dynamic boundary condition for the fluid region, and a numerical simulation is carried out using software FLUENT. Considering simulation results, the characteristics of fluid motions and pressures on interior beam walls are investigated. A quantitative criterion based on energy dissipation of the fluid response is proposed to indirectly evaluate the damping effect of inlaid fluid for the beam, and relative parameters are identified by a theoretical derivation.
{"title":"Numerical analysis of suppressing vibration for flexible beam with inlaid viscous fluid unit","authors":"Jianwei Wang, Hui Xu","doi":"10.1109/ICMET.2010.5598443","DOIUrl":"https://doi.org/10.1109/ICMET.2010.5598443","url":null,"abstract":"A new passive vibration control has been put forward and applied to a flexible beam under the principal resonant harmonic excitation by using inlaid viscous fluid unit (IVFU). For the liquid-solid coupling model, a new algorithm is proposed that it is approximately transformed into a pure hydrokinetic model via constructing a dynamic boundary condition for the fluid region, and a numerical simulation is carried out using software FLUENT. Considering simulation results, the characteristics of fluid motions and pressures on interior beam walls are investigated. A quantitative criterion based on energy dissipation of the fluid response is proposed to indirectly evaluate the damping effect of inlaid fluid for the beam, and relative parameters are identified by a theoretical derivation.","PeriodicalId":415118,"journal":{"name":"2010 International Conference on Mechanical and Electrical Technology","volume":"153 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134441603","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 : 2010-10-07DOI: 10.1109/ICMET.2010.5598349
Prasad A. Hatwlane, M. Ghonge
Effective supply chain strategies for creating competitiveness revolve around the on-time delivery of quality goods and services, at a reasonable cost. This balance between time constraints and profit can be achieved if and only if distribution system is efficient. The efficiency of distribution system can be increased if the vehicle is routed efficiently through network of bunch of customer scattered over area so as to facilitate the scheme at low operational costs and short transporting time as possible also taking care of customer satisfaction as well. This paper attempts to put forth the issues supporting importance of vehicle routing in SCM and presents an algorithm for vehicle routing problem. A realistic case study based on road network of city Yavatmal(India) is also presented.
{"title":"A new algorithm based on matrix for vehicle routing in supply chain management","authors":"Prasad A. Hatwlane, M. Ghonge","doi":"10.1109/ICMET.2010.5598349","DOIUrl":"https://doi.org/10.1109/ICMET.2010.5598349","url":null,"abstract":"Effective supply chain strategies for creating competitiveness revolve around the on-time delivery of quality goods and services, at a reasonable cost. This balance between time constraints and profit can be achieved if and only if distribution system is efficient. The efficiency of distribution system can be increased if the vehicle is routed efficiently through network of bunch of customer scattered over area so as to facilitate the scheme at low operational costs and short transporting time as possible also taking care of customer satisfaction as well. This paper attempts to put forth the issues supporting importance of vehicle routing in SCM and presents an algorithm for vehicle routing problem. A realistic case study based on road network of city Yavatmal(India) is also presented.","PeriodicalId":415118,"journal":{"name":"2010 International Conference on Mechanical and Electrical Technology","volume":"151 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131698374","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}
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