Pub Date : 2010-10-07DOI: 10.1109/ICMET.2010.5598386
Towhid Mozaffari, Abolfazl Toroghi Haghighat
An established route probably fails before the end of the transmission session in a wireless ad hoc network where mobility is high. Due to this level of mobility, routing protocols frequently require rerouting that imposes data latency and bandwidth overhead. In this paper, we propose a novel geographic routing protocol called HZGR. We design HZGR based on Greedy Forwarding (GF). This makes HZGR simple with low bandwidth overhead. We incorporate a number of mechanisms in HZGR to improve the performance of GF. Our simulation experiments show that HZGR improves the existing routing schemes such as GF and AODV in terms of bandwidth overhead and average path length under high mobility.
{"title":"HZGR routing in MANET","authors":"Towhid Mozaffari, Abolfazl Toroghi Haghighat","doi":"10.1109/ICMET.2010.5598386","DOIUrl":"https://doi.org/10.1109/ICMET.2010.5598386","url":null,"abstract":"An established route probably fails before the end of the transmission session in a wireless ad hoc network where mobility is high. Due to this level of mobility, routing protocols frequently require rerouting that imposes data latency and bandwidth overhead. In this paper, we propose a novel geographic routing protocol called HZGR. We design HZGR based on Greedy Forwarding (GF). This makes HZGR simple with low bandwidth overhead. We incorporate a number of mechanisms in HZGR to improve the performance of GF. Our simulation experiments show that HZGR improves the existing routing schemes such as GF and AODV in terms of bandwidth overhead and average path length under high mobility.","PeriodicalId":415118,"journal":{"name":"2010 International Conference on Mechanical and Electrical Technology","volume":"116 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":"124727139","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.2010.5598476
M. Farzaneh-Gord, A. Molavi
The injection to main flow through a perforated surface has many industrial applications such as film cooling. Injection flow is also a way of controlling characteristic of boundary layer flow. In this study, an experimental study has been carried out to study the effects of injection flow rate, main flow Reynolds number and the direction (front, top or rear) of injected flow on pressure distribution over a half perforated surface circular cylinder‥ The results show that, injected flow influences characteristic of flow over the cylinder and change the pressure coefficient around the cylinder.
{"title":"Experimental study of pressure distribution over semi perforated circular cylinder subjected to injected flow","authors":"M. Farzaneh-Gord, A. Molavi","doi":"10.1109/ICMET.2010.5598476","DOIUrl":"https://doi.org/10.1109/ICMET.2010.5598476","url":null,"abstract":"The injection to main flow through a perforated surface has many industrial applications such as film cooling. Injection flow is also a way of controlling characteristic of boundary layer flow. In this study, an experimental study has been carried out to study the effects of injection flow rate, main flow Reynolds number and the direction (front, top or rear) of injected flow on pressure distribution over a half perforated surface circular cylinder‥ The results show that, injected flow influences characteristic of flow over the cylinder and change the pressure coefficient around the cylinder.","PeriodicalId":415118,"journal":{"name":"2010 International Conference on Mechanical and Electrical Technology","volume":"39 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":"120979197","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.2010.5598335
S. Sheel, R. Chandkishor, O. Gupta
DC motors have been widely used in many industrial applications. Speed control is a common requirement in industrial drives in the presence of varying operating conditions i.e. load disturbance, parameter uncertainty, measurement noise etc. Conventional controllers with fixed parameters have not been successful for real time applications because of the drift in the plant operating conditions. Adaptive techniques are best suited for these situations. This paper presents a case study on speed control of dc drive using Model Reference Adaptive Control (MRAC). The fluctuation in load is assumed to be step disturbance on the plant, which causes the deviation from the desired speed. In the literature various adaptive control algorithms have been developed. A standard MRAC algorithm is applied and simulations have been carried out for different values and nature of load disturbances, parameter uncertainties and in the presence of output measurement noise. The simulation results reported in this paper demonstrate the effectiveness of the proposed controller against varying operating conditions.
{"title":"Speed control of DC drives using MRAC technique","authors":"S. Sheel, R. Chandkishor, O. Gupta","doi":"10.1109/ICMET.2010.5598335","DOIUrl":"https://doi.org/10.1109/ICMET.2010.5598335","url":null,"abstract":"DC motors have been widely used in many industrial applications. Speed control is a common requirement in industrial drives in the presence of varying operating conditions i.e. load disturbance, parameter uncertainty, measurement noise etc. Conventional controllers with fixed parameters have not been successful for real time applications because of the drift in the plant operating conditions. Adaptive techniques are best suited for these situations. This paper presents a case study on speed control of dc drive using Model Reference Adaptive Control (MRAC). The fluctuation in load is assumed to be step disturbance on the plant, which causes the deviation from the desired speed. In the literature various adaptive control algorithms have been developed. A standard MRAC algorithm is applied and simulations have been carried out for different values and nature of load disturbances, parameter uncertainties and in the presence of output measurement noise. The simulation results reported in this paper demonstrate the effectiveness of the proposed controller against varying operating conditions.","PeriodicalId":415118,"journal":{"name":"2010 International Conference on Mechanical and Electrical Technology","volume":"20 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":"116445737","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.2010.5598453
Chun Zhang, Yongfeng Li
The stresses in the drill tip with different geometrical angle were analyzed by using ANSYS software for the cemented carbide drill bits of the same specification. Next, cemented carbide bit has been manufactured based on the analytical results. Machinability test shows that this can increase the strength of the bit twice and prolong the life of it doubled.
{"title":"Numerical simulation and development of high speed cemented carbide drill bit","authors":"Chun Zhang, Yongfeng Li","doi":"10.1109/ICMET.2010.5598453","DOIUrl":"https://doi.org/10.1109/ICMET.2010.5598453","url":null,"abstract":"The stresses in the drill tip with different geometrical angle were analyzed by using ANSYS software for the cemented carbide drill bits of the same specification. Next, cemented carbide bit has been manufactured based on the analytical results. Machinability test shows that this can increase the strength of the bit twice and prolong the life of it doubled.","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":"130674168","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.2010.5598429
T. Shyam Ramanath, A. Sudharsan, U. Felix Udhayaraj
As is needless to say; a majority of accidents, which occur, are due to drunk driving. As such, there is no effective mechanism to prevent this. Here we have designed an integrated system for the same purpose. Alcohol content in the driver's body is detected by means of an infrared breath analyzer placed at the steering wheel. An infrared cell directs infrared energy through the sample and any unabsorbed energy at the other side is detected. The higher the concentration of ethanol, the more infrared absorption occurs (in much the same way that a sunglass lens absorbs visible light, alcohol absorbs infrared light). Thus the alcohol level of the driver is continuously monitored and calibrated on a scale. When it exceeds a particular limit the fuel supply is cutoff. If the device is removed also, the fuel supply will be automatically cut off or an alarm is sounded depending upon the requirement. This does not happen abruptly and special indicators are fixed at the back to avoid inconvenience to other drivers using the highway signals. Further, in this paper we intend to present the designed mechanical system for controlling the speed of vehicles in densely populated regions. Advance digital maps have the capacity for real-time updating duly including information on areas where speed limits should be reduced due to adverse weather conditions or around accident scenes and road-works. This paper also discusses the on-board vision system by evaluating the surroundings of the vehicles and thereby improving the safety and efficiency of driving. It lies on important ability for various recognitions like traffic signals, signs and pedestrians are presented. Frame work for integration of sensors and control module in a scalable multi-agent system is provided. A SMS which contains the current GPS location of the vehicle is sent via a GSM module to the police control room to alert the police. The system is foolproof and the driver cannot tamper with it easily. Thus it provides an effective and cost effective solution for the problem of drunk driving in vehicles.
{"title":"Drunken driving and rash driving prevention system","authors":"T. Shyam Ramanath, A. Sudharsan, U. Felix Udhayaraj","doi":"10.1109/ICMET.2010.5598429","DOIUrl":"https://doi.org/10.1109/ICMET.2010.5598429","url":null,"abstract":"As is needless to say; a majority of accidents, which occur, are due to drunk driving. As such, there is no effective mechanism to prevent this. Here we have designed an integrated system for the same purpose. Alcohol content in the driver's body is detected by means of an infrared breath analyzer placed at the steering wheel. An infrared cell directs infrared energy through the sample and any unabsorbed energy at the other side is detected. The higher the concentration of ethanol, the more infrared absorption occurs (in much the same way that a sunglass lens absorbs visible light, alcohol absorbs infrared light). Thus the alcohol level of the driver is continuously monitored and calibrated on a scale. When it exceeds a particular limit the fuel supply is cutoff. If the device is removed also, the fuel supply will be automatically cut off or an alarm is sounded depending upon the requirement. This does not happen abruptly and special indicators are fixed at the back to avoid inconvenience to other drivers using the highway signals. Further, in this paper we intend to present the designed mechanical system for controlling the speed of vehicles in densely populated regions. Advance digital maps have the capacity for real-time updating duly including information on areas where speed limits should be reduced due to adverse weather conditions or around accident scenes and road-works. This paper also discusses the on-board vision system by evaluating the surroundings of the vehicles and thereby improving the safety and efficiency of driving. It lies on important ability for various recognitions like traffic signals, signs and pedestrians are presented. Frame work for integration of sensors and control module in a scalable multi-agent system is provided. A SMS which contains the current GPS location of the vehicle is sent via a GSM module to the police control room to alert the police. The system is foolproof and the driver cannot tamper with it easily. Thus it provides an effective and cost effective solution for the problem of drunk driving in vehicles.","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":"131066268","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.2010.5598392
Rui Antunes, F. Coito, H. Duarte-Ramos
In what concerns human-machine interaction, two main driving forces are performance and usability. In systems where the human operator integrates the control loop (HIL - human in the loop) one wishes to minimize its effort and fatigue, without compromising the performance.
{"title":"Human-machine control model approach to enhance operator skills","authors":"Rui Antunes, F. Coito, H. Duarte-Ramos","doi":"10.1109/ICMET.2010.5598392","DOIUrl":"https://doi.org/10.1109/ICMET.2010.5598392","url":null,"abstract":"In what concerns human-machine interaction, two main driving forces are performance and usability. In systems where the human operator integrates the control loop (HIL - human in the loop) one wishes to minimize its effort and fatigue, without compromising the performance.","PeriodicalId":415118,"journal":{"name":"2010 International Conference on Mechanical and Electrical Technology","volume":"35 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":"115085144","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.2010.5598394
Wencai Sun, Z. Yang
Seeing that stochastic variables and non-probabilistic variables coexist in engineering structures in many encountered cases, a hybrid probabilistic and non-probabilistic model for fatigue lifetime estimation is proposed. The probability distribution function of the lower bound of the fatigue lifetime is fitted through two steps of analysis. The estimated value of the lower bound of the fatigue lifetime can be obtained when the confidence level is given. An example illustrated the application of the proposed theory. The results of the proposed model were compared with that of interval analysis model. It was shown that the results have compatibility with the meanings of probability theory and interval analysis and the model has reasonableness and feasibility.
{"title":"Fatigue lifetime assessment based on probabilistic and non-probabilistic mixed model","authors":"Wencai Sun, Z. Yang","doi":"10.1109/ICMET.2010.5598394","DOIUrl":"https://doi.org/10.1109/ICMET.2010.5598394","url":null,"abstract":"Seeing that stochastic variables and non-probabilistic variables coexist in engineering structures in many encountered cases, a hybrid probabilistic and non-probabilistic model for fatigue lifetime estimation is proposed. The probability distribution function of the lower bound of the fatigue lifetime is fitted through two steps of analysis. The estimated value of the lower bound of the fatigue lifetime can be obtained when the confidence level is given. An example illustrated the application of the proposed theory. The results of the proposed model were compared with that of interval analysis model. It was shown that the results have compatibility with the meanings of probability theory and interval analysis and the model has reasonableness and feasibility.","PeriodicalId":415118,"journal":{"name":"2010 International Conference on Mechanical and Electrical Technology","volume":"27 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":"116630928","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.2010.5598393
Xie Mengji, L. Xiaoming, Zhu Zhonggan
The microstrip antenna manufactured by MEMS has a few good features, such as small size and light weight. However, the substrate and feeder often have lager energy consumption and the antenna thermal area is small. When the antenna reaching normal power demand worked for 15 seconds, the peak temperation will reach 105°C and could not continue to work properly. This paper simulated the antenna structure and its power consumption to look for the peak temperature region, and designed asymmetric micro-channel cooling structure which is based on the Microstrip antenna array and the experimental data. Simulation indicated that peak temperature decreased by 9% by asymmetric structure cooling system driven by 1.2*10−5W micro-pump power. And antenna can guarantee work normally under 61.6°C.
{"title":"Design and research of asymmetric micro-channel cooling system in MEMS-based Microstrip antenna","authors":"Xie Mengji, L. Xiaoming, Zhu Zhonggan","doi":"10.1109/ICMET.2010.5598393","DOIUrl":"https://doi.org/10.1109/ICMET.2010.5598393","url":null,"abstract":"The microstrip antenna manufactured by MEMS has a few good features, such as small size and light weight. However, the substrate and feeder often have lager energy consumption and the antenna thermal area is small. When the antenna reaching normal power demand worked for 15 seconds, the peak temperation will reach 105°C and could not continue to work properly. This paper simulated the antenna structure and its power consumption to look for the peak temperature region, and designed asymmetric micro-channel cooling structure which is based on the Microstrip antenna array and the experimental data. Simulation indicated that peak temperature decreased by 9% by asymmetric structure cooling system driven by 1.2*10−5W micro-pump power. And antenna can guarantee work normally under 61.6°C.","PeriodicalId":415118,"journal":{"name":"2010 International Conference on Mechanical and Electrical Technology","volume":"35 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":"133592548","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.2010.5598482
M. Bayareh, S. Mortazavi
Three-dimensional numerical simulations are performed to study the density ratio effects on the cross-stream migration of a drop in simple shear flow at finite Reynolds numbers using a front-tracking/finite difference method. The gravity force is also included. For slightly buoyant drops (η = 0.998 or 1.002), the equilibrium position of drops are close to either of the walls, depending on whether the drop leads or lags the ambient fluid. For larger buoyancy (η = 0.95 or 1.05), the final equilibrium position, moves to the centreline. If the drop is slightly buoyant, the slip velocity is much larger than that of a heavier drop.
{"title":"A numerical study of the motion of a single drop in simple shear flow: Density ratio effects","authors":"M. Bayareh, S. Mortazavi","doi":"10.1109/ICMET.2010.5598482","DOIUrl":"https://doi.org/10.1109/ICMET.2010.5598482","url":null,"abstract":"Three-dimensional numerical simulations are performed to study the density ratio effects on the cross-stream migration of a drop in simple shear flow at finite Reynolds numbers using a front-tracking/finite difference method. The gravity force is also included. For slightly buoyant drops (η = 0.998 or 1.002), the equilibrium position of drops are close to either of the walls, depending on whether the drop leads or lags the ambient fluid. For larger buoyancy (η = 0.95 or 1.05), the final equilibrium position, moves to the centreline. If the drop is slightly buoyant, the slip velocity is much larger than that of a heavier drop.","PeriodicalId":415118,"journal":{"name":"2010 International Conference on Mechanical and Electrical Technology","volume":"34 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":"126918217","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.2010.5598361
M. Tavakoli Bina, Hossein Samsami, Sasan Beheshti
In this paper, Controlled Shunt Compensator of Transformer type (CSCT) is introduced as a new shunt compensator and harmonic component of its current is presented. A filter block in tertiary winding of the CSCT is used to suppress these harmonics. It is demonstrated that operation of the filter block is influenced by the arrangement of the windings and their dimensions. Then two possible arrangements of the CSCT windings are considered and the best arrangement and CSCT winding dimensions will be determined using harmony search method.
{"title":"SCT dimensions optimization by harmony search algorithm","authors":"M. Tavakoli Bina, Hossein Samsami, Sasan Beheshti","doi":"10.1109/ICMET.2010.5598361","DOIUrl":"https://doi.org/10.1109/ICMET.2010.5598361","url":null,"abstract":"In this paper, Controlled Shunt Compensator of Transformer type (CSCT) is introduced as a new shunt compensator and harmonic component of its current is presented. A filter block in tertiary winding of the CSCT is used to suppress these harmonics. It is demonstrated that operation of the filter block is influenced by the arrangement of the windings and their dimensions. Then two possible arrangements of the CSCT windings are considered and the best arrangement and CSCT winding dimensions will be determined using harmony search method.","PeriodicalId":415118,"journal":{"name":"2010 International Conference on Mechanical and Electrical Technology","volume":"4 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":"122042617","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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