Pub Date : 2010-11-01DOI: 10.1109/FAME.2010.5714843
M. Sivashanmugam, T. Kumar, C. Shanmugam, M. Sathishkumar
Aluminum and its alloys have been used extensively due to their light weight, moderate strength and good corrosion resistance. Aluminium alloy 7075 has been researched upon especially as a potential candidate for aircraft material. This alloy is difficult to weld using conventional welding techniques like GMAW and GTAW. An attempt has been made in this investigation to weld 7075 alloy using GTAW and GMAW with argon as a shielding gas. Mechanical properties of the joint like tensile strength, Hardness and impact strength have been tested and reported. Microstructural characterization has been done using standard metallography. SEM micrographs have also been taken to study the fracture characteristics.
{"title":"Investigation of microstructure and mechanical properties of GTAW and GMAW joints on AA7075 aluminum alloy","authors":"M. Sivashanmugam, T. Kumar, C. Shanmugam, M. Sathishkumar","doi":"10.1109/FAME.2010.5714843","DOIUrl":"https://doi.org/10.1109/FAME.2010.5714843","url":null,"abstract":"Aluminum and its alloys have been used extensively due to their light weight, moderate strength and good corrosion resistance. Aluminium alloy 7075 has been researched upon especially as a potential candidate for aircraft material. This alloy is difficult to weld using conventional welding techniques like GMAW and GTAW. An attempt has been made in this investigation to weld 7075 alloy using GTAW and GMAW with argon as a shielding gas. Mechanical properties of the joint like tensile strength, Hardness and impact strength have been tested and reported. Microstructural characterization has been done using standard metallography. SEM micrographs have also been taken to study the fracture characteristics.","PeriodicalId":123922,"journal":{"name":"Frontiers in Automobile and Mechanical Engineering -2010","volume":"396 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115407718","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 : 2010-11-01DOI: 10.1109/FAME.2010.5714828
M. Sankar, P. Rajasekar, S. Sakthy
This paper aims to apply the green building practice in air conditioning system design so as to replace the high energy consuming air conditioning system with poor IEQ (Indoor Environmental Quality) into energy efficient one with better IEQ. The energy efficiency will be proved with the help of a sample building study (Auditorium).
{"title":"Green building approach in air conditioning system design","authors":"M. Sankar, P. Rajasekar, S. Sakthy","doi":"10.1109/FAME.2010.5714828","DOIUrl":"https://doi.org/10.1109/FAME.2010.5714828","url":null,"abstract":"This paper aims to apply the green building practice in air conditioning system design so as to replace the high energy consuming air conditioning system with poor IEQ (Indoor Environmental Quality) into energy efficient one with better IEQ. The energy efficiency will be proved with the help of a sample building study (Auditorium).","PeriodicalId":123922,"journal":{"name":"Frontiers in Automobile and Mechanical Engineering -2010","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114804909","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 : 2010-11-01DOI: 10.1109/FAME.2010.5714820
S. Padmanabhan, S. Ganesan, M. Chandrasekaran, V. Raman
Multiple, often conflicting objectives arise naturally in most real-world optimization. Gear is a mechanical device that transfers the rotating motion and power from one part of a machine to another. Searching for best gear is a very hard problem. Gear optimization can be divided into two categories, namely, single gear pair or Gear train optimization. The problem of gear pairs design optimization is difficult to solve because it involves multiple objectives and large number of variables. Therefore a reliable and robust optimization technique will be helpful in obtaining optimal solution for the problems. In this paper an attempt has been made to optimize spur gear pair design using Genetic Algorithm (GA) and analytical tool MITCalc. A combined objective function which maximizes the Power, Efficiency and minimizes the overall Weight, Centre distance has been considered in this model. Finite Element Analysis (FEA) was carried out and results were compared with the allowable limit.
{"title":"Gear pair design optimization by Genetic Algorithm and FEA","authors":"S. Padmanabhan, S. Ganesan, M. Chandrasekaran, V. Raman","doi":"10.1109/FAME.2010.5714820","DOIUrl":"https://doi.org/10.1109/FAME.2010.5714820","url":null,"abstract":"Multiple, often conflicting objectives arise naturally in most real-world optimization. Gear is a mechanical device that transfers the rotating motion and power from one part of a machine to another. Searching for best gear is a very hard problem. Gear optimization can be divided into two categories, namely, single gear pair or Gear train optimization. The problem of gear pairs design optimization is difficult to solve because it involves multiple objectives and large number of variables. Therefore a reliable and robust optimization technique will be helpful in obtaining optimal solution for the problems. In this paper an attempt has been made to optimize spur gear pair design using Genetic Algorithm (GA) and analytical tool MITCalc. A combined objective function which maximizes the Power, Efficiency and minimizes the overall Weight, Centre distance has been considered in this model. Finite Element Analysis (FEA) was carried out and results were compared with the allowable limit.","PeriodicalId":123922,"journal":{"name":"Frontiers in Automobile and Mechanical Engineering -2010","volume":"152 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116391891","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 : 2010-11-01DOI: 10.1109/FAME.2010.5714851
V. Govindasamy, P. Durairaj, T. Joy
Hydraulic cylinders are used in many industrial applications. They are of different sizes and mountings depending upon the specific requirements. The hydraulic cylinders are primarily used for the development of force and consequently motion and fluid power transmission. In a particular application in fuel handling system, the double acting hydraulic cylinder is used for moving solid fuel of sixteen kilogram weight from one equipment to another in its path of travel to fuel reactor core. The piston rod of the cylinder is kept unsupported at free end for moving the fuel bundle horizontally and retracts back to home position for next cycle of operation. The sagged piston rod interrupts the retraction of piston rod form the extended position due to self weight of solid rod and stalling the further fuel transfer operations intended. Hence it is proposed to re-design the existing piston rod to overcome this problem. This paper will discuss re-designing of solid circular piston rod of the oil hydraulic cylinder.
{"title":"Redesign of solid piston rod of horizontally mounted, free rod end type oil hydraulic cylinder used in fuel handling equipments in nuclear system application","authors":"V. Govindasamy, P. Durairaj, T. Joy","doi":"10.1109/FAME.2010.5714851","DOIUrl":"https://doi.org/10.1109/FAME.2010.5714851","url":null,"abstract":"Hydraulic cylinders are used in many industrial applications. They are of different sizes and mountings depending upon the specific requirements. The hydraulic cylinders are primarily used for the development of force and consequently motion and fluid power transmission. In a particular application in fuel handling system, the double acting hydraulic cylinder is used for moving solid fuel of sixteen kilogram weight from one equipment to another in its path of travel to fuel reactor core. The piston rod of the cylinder is kept unsupported at free end for moving the fuel bundle horizontally and retracts back to home position for next cycle of operation. The sagged piston rod interrupts the retraction of piston rod form the extended position due to self weight of solid rod and stalling the further fuel transfer operations intended. Hence it is proposed to re-design the existing piston rod to overcome this problem. This paper will discuss re-designing of solid circular piston rod of the oil hydraulic cylinder.","PeriodicalId":123922,"journal":{"name":"Frontiers in Automobile and Mechanical Engineering -2010","volume":"95 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122320674","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 : 2010-11-01DOI: 10.1109/FAME.2010.5714838
M. Premkumar, S. Ramachandran
The Solar energy is renewable energy resources which is available in plenty in our country. So far many research works is carried out in the field of solar energy like solar ponds, solar cells, solar heaters, solar chimney etc. There are many effective methods to tap the solar energy. Solar chimney power generation is one of the latest methods of producing high energy output from sun. In solar chimney the electricity is generated by rotating the turbine at the base of the chimney by the warm rising air through the chimney. In solar chimney; the power is generated by the principle of buoyancy. In Buoyancy driven Solar Engine, atmospheric air inside the chimney gets heated by hot sunlight and it rises up. The rising warm air is converged through the convergent nozzle, producing kinetic energy at the throat of the convergent nozzle. A wind turbine was installed at the entrance of the air for generating electricity. Height of the chimney and the solar absorbers are the important parameters which decides the velocity of air flowing through the wind turbine. In this paper the velocity of air at convergent throat is obtained by mathematical calculations for 1.5 meter chimney height and 1 square meter solar absorber area. The Computational fluid dynamics (CFD) analysis of buoyancy driven solar engine (BDSE) is done for the same chimney parameters. Finally a pilot model experimental setup of BDSE is made and the results obtained from the experimental set up is compared and with the results of theoretical design and CFD analysis.
{"title":"A pilot model experimental set up and computational fluid dynamics analysis of buoyancy driven solar engine","authors":"M. Premkumar, S. Ramachandran","doi":"10.1109/FAME.2010.5714838","DOIUrl":"https://doi.org/10.1109/FAME.2010.5714838","url":null,"abstract":"The Solar energy is renewable energy resources which is available in plenty in our country. So far many research works is carried out in the field of solar energy like solar ponds, solar cells, solar heaters, solar chimney etc. There are many effective methods to tap the solar energy. Solar chimney power generation is one of the latest methods of producing high energy output from sun. In solar chimney the electricity is generated by rotating the turbine at the base of the chimney by the warm rising air through the chimney. In solar chimney; the power is generated by the principle of buoyancy. In Buoyancy driven Solar Engine, atmospheric air inside the chimney gets heated by hot sunlight and it rises up. The rising warm air is converged through the convergent nozzle, producing kinetic energy at the throat of the convergent nozzle. A wind turbine was installed at the entrance of the air for generating electricity. Height of the chimney and the solar absorbers are the important parameters which decides the velocity of air flowing through the wind turbine. In this paper the velocity of air at convergent throat is obtained by mathematical calculations for 1.5 meter chimney height and 1 square meter solar absorber area. The Computational fluid dynamics (CFD) analysis of buoyancy driven solar engine (BDSE) is done for the same chimney parameters. Finally a pilot model experimental setup of BDSE is made and the results obtained from the experimental set up is compared and with the results of theoretical design and CFD analysis.","PeriodicalId":123922,"journal":{"name":"Frontiers in Automobile and Mechanical Engineering -2010","volume":"110 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129690379","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 : 2010-11-01DOI: 10.1109/FAME.2010.5714853
R. Senthilkumar, P. Ramesh, P. Velmurugan
The aim of this paper is modelling of optimal screw jack design using VBA Programming in AutoCAD package software. Today's demand grows need of good design and quality product with short span of time to achieve a better product. The software development in the digital world is a vital role to satisfy a number of demands, in this regard author considers CAD software to develop design of screw jack. The application software having the instruction as per the developer but it not meets the user. When the user handles that software, they need a long time span to complete a 3D modelling with complicated design. In AutoCAD, the programming languages are embedded through macros to design our needs as programming language. They are lisp programming, Auto lisp programming, dialogue control language programming and visual basic programming. In this paper design of screw jack using visual Basic aide programming language embedded with AutoCAD is developed. The Visual Basic language software is user friendly and it is windows application. The development of dialogue boxes and coding for the designs are very easy to debugging than the other language in AutoCAD. Basically, the design of 3D modelling carries a huge space to save the process and also inconvenient to transfer from one system to another system configuration. The programming language occupy little space and also easy to transfer via a small memory disc to other system configuration. The development of modelling, 2d design and other parameter are easy to explore simultaneously through dialogue boxes of proposed software. This software having the code to do for optimization of screw jack modelling, when click required command buttons in the dialogue box. The step by step of the statement in this software is executed to process the parameter. If anyone of the parameter is not satisfy, it will carry out the optimization without knowledge of user to produce exact design parameters and give good design. In future this kind of software development helps the researchers and scholars to get quick and precision design or any data.
{"title":"Modeling of optimal screw jack design","authors":"R. Senthilkumar, P. Ramesh, P. Velmurugan","doi":"10.1109/FAME.2010.5714853","DOIUrl":"https://doi.org/10.1109/FAME.2010.5714853","url":null,"abstract":"The aim of this paper is modelling of optimal screw jack design using VBA Programming in AutoCAD package software. Today's demand grows need of good design and quality product with short span of time to achieve a better product. The software development in the digital world is a vital role to satisfy a number of demands, in this regard author considers CAD software to develop design of screw jack. The application software having the instruction as per the developer but it not meets the user. When the user handles that software, they need a long time span to complete a 3D modelling with complicated design. In AutoCAD, the programming languages are embedded through macros to design our needs as programming language. They are lisp programming, Auto lisp programming, dialogue control language programming and visual basic programming. In this paper design of screw jack using visual Basic aide programming language embedded with AutoCAD is developed. The Visual Basic language software is user friendly and it is windows application. The development of dialogue boxes and coding for the designs are very easy to debugging than the other language in AutoCAD. Basically, the design of 3D modelling carries a huge space to save the process and also inconvenient to transfer from one system to another system configuration. The programming language occupy little space and also easy to transfer via a small memory disc to other system configuration. The development of modelling, 2d design and other parameter are easy to explore simultaneously through dialogue boxes of proposed software. This software having the code to do for optimization of screw jack modelling, when click required command buttons in the dialogue box. The step by step of the statement in this software is executed to process the parameter. If anyone of the parameter is not satisfy, it will carry out the optimization without knowledge of user to produce exact design parameters and give good design. In future this kind of software development helps the researchers and scholars to get quick and precision design or any data.","PeriodicalId":123922,"journal":{"name":"Frontiers in Automobile and Mechanical Engineering -2010","volume":"45 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125689654","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 : 2010-11-01DOI: 10.1109/FAME.2010.5714867
Pradnya Kosbe, C. More
The friction materials used in brakes are required to provide a stable coefficient of friction and a lower wear rate at various operating speeds, pressures, temperatures and environmental conditions. These friction materials must also be compatible with the rotor material in order to reduce its extensive wear, vibration and noise during braking. All of these requirements need to be achieved at a reasonable cost and minimum environmental load. Selection of the material is often based on experience or a trial and error method. This paper deals with the performance of a disc brake friction material for a vehicle. There are different friction performance properties such as base line check, average coefficient of friction. The physical properties are studied according to Indian standards. The results are discussed and correlated to the observed friction phenomenon.
{"title":"Performance of a disc brake friction material","authors":"Pradnya Kosbe, C. More","doi":"10.1109/FAME.2010.5714867","DOIUrl":"https://doi.org/10.1109/FAME.2010.5714867","url":null,"abstract":"The friction materials used in brakes are required to provide a stable coefficient of friction and a lower wear rate at various operating speeds, pressures, temperatures and environmental conditions. These friction materials must also be compatible with the rotor material in order to reduce its extensive wear, vibration and noise during braking. All of these requirements need to be achieved at a reasonable cost and minimum environmental load. Selection of the material is often based on experience or a trial and error method. This paper deals with the performance of a disc brake friction material for a vehicle. There are different friction performance properties such as base line check, average coefficient of friction. The physical properties are studied according to Indian standards. The results are discussed and correlated to the observed friction phenomenon.","PeriodicalId":123922,"journal":{"name":"Frontiers in Automobile and Mechanical Engineering -2010","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126622888","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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