K. Mohan, M. Solai Ganesh, S. Surya Prakash, S. Surya, K. Vimal Kannan
The fuel consumption rate has been increased in our world compared to older days. Most of the fuels which we use are fossil fuel which has high emissions of greenhouse gases which leads to pollution and global warming. Fuels are getting higher price range nowadays. So, we are trying to find a better alternative fuel which will be cost efficient and less harmful to the planet. In this study we try to solve the problem by experimenting and evaluating the mixture of oils which may reduce emissions of harmful gases. In this project we are using corn oil, rice bran oil with additives and mixing them with conventional fuel i.e., diesel to convert the collected oils into a biodiesel. This process is commonly known as transesterification. The biodiesels are mixed in three different forms like B30, B40, and B50, in which B30 contains 70% of diesel and 15% of corn oil and 15% of rice bran oil. B40 contains 60% of diesel, 20% of corn oil and 20% of rice bran oil. B50 contains 50% of diesel, 25% of corn oil and 25% of rice bran oil. We are mixing these oils with diesel and other additives in three different ratios in-order to get the maximum performance and lowest emission from a diesel engine. These samples are used as an alternative to conventional diesel in a diesel engine and the engine’s performance was evaluated. The performance of the engine is evaluated by parameters which include brake thermal efficiency, volumetric efficiency, specific fuel consumption and torque. The emission parameters are also tested which includes the emission level of CO, CO2, NOX, SOX and HC. These tests are done under different load conditions varying form no load up to 10kg. The results from the three samples (B30, B40 and B50) are compared to the conventional diesel which is being used in most conditions.
{"title":"Performance and Emission Analysis of Corn Oil and Rice Bran Oil using Ethanol, Methanal and Sodium Hydroxide Additives","authors":"K. Mohan, M. Solai Ganesh, S. Surya Prakash, S. Surya, K. Vimal Kannan","doi":"10.4273/ijvss.14.7.10","DOIUrl":"https://doi.org/10.4273/ijvss.14.7.10","url":null,"abstract":"The fuel consumption rate has been increased in our world compared to older days. Most of the fuels which we use are fossil fuel which has high emissions of greenhouse gases which leads to pollution and global warming. Fuels are getting higher price range nowadays. So, we are trying to find a better alternative fuel which will be cost efficient and less harmful to the planet. In this study we try to solve the problem by experimenting and evaluating the mixture of oils which may reduce emissions of harmful gases. In this project we are using corn oil, rice bran oil with additives and mixing them with conventional fuel i.e., diesel to convert the collected oils into a biodiesel. This process is commonly known as transesterification. The biodiesels are mixed in three different forms like B30, B40, and B50, in which B30 contains 70% of diesel and 15% of corn oil and 15% of rice bran oil. B40 contains 60% of diesel, 20% of corn oil and 20% of rice bran oil. B50 contains 50% of diesel, 25% of corn oil and 25% of rice bran oil. We are mixing these oils with diesel and other additives in three different ratios in-order to get the maximum performance and lowest emission from a diesel engine. These samples are used as an alternative to conventional diesel in a diesel engine and the engine’s performance was evaluated. The performance of the engine is evaluated by parameters which include brake thermal efficiency, volumetric efficiency, specific fuel consumption and torque. The emission parameters are also tested which includes the emission level of CO, CO2, NOX, SOX and HC. These tests are done under different load conditions varying form no load up to 10kg. The results from the three samples (B30, B40 and B50) are compared to the conventional diesel which is being used in most conditions.","PeriodicalId":14391,"journal":{"name":"International Journal of Vehicle Structures and Systems","volume":"30 1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82586952","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}
D. Surekha R S, K. Sunayani, V. Nithyasree, A. Monisha, S. Chary, K. S. Kumar
The study was focused on investigating the spray and droplet characteristics of spiral and flat-fan nozzles computationally. The Spiral nozzle and the flat-fan nozzle are generally used in fire suppression application. The computational analysis had been carried out in ANSYS. The nozzle parameters like spray pattern, spray flow rate, impact, weber number were examined at different pressures say 1 bar to 3 bar. During this study the volume fraction of air and water were maintained equally. The spray pattern of spiral nozzle is not uniform and the droplets produced from the spray are coarse. The flat-fan nozzle produces a solid-cone pattern spray with oval impact area with a width of approximately ½ of its length. The flat-fan nozzle has higher spray flow rates and higher sprays impact than the spiral nozzles. The spiral nozzle acquires the maximum spray angle and the minimum droplet size and hence it is considered as highly efficient spray nozzle.
{"title":"Investigation of Spray and Droplet Characteristics of Spray Nozzles","authors":"D. Surekha R S, K. Sunayani, V. Nithyasree, A. Monisha, S. Chary, K. S. Kumar","doi":"10.4273/ijvss.14.7.16","DOIUrl":"https://doi.org/10.4273/ijvss.14.7.16","url":null,"abstract":"The study was focused on investigating the spray and droplet characteristics of spiral and flat-fan nozzles computationally. The Spiral nozzle and the flat-fan nozzle are generally used in fire suppression application. The computational analysis had been carried out in ANSYS. The nozzle parameters like spray pattern, spray flow rate, impact, weber number were examined at different pressures say 1 bar to 3 bar. During this study the volume fraction of air and water were maintained equally. The spray pattern of spiral nozzle is not uniform and the droplets produced from the spray are coarse. The flat-fan nozzle produces a solid-cone pattern spray with oval impact area with a width of approximately ½ of its length. The flat-fan nozzle has higher spray flow rates and higher sprays impact than the spiral nozzles. The spiral nozzle acquires the maximum spray angle and the minimum droplet size and hence it is considered as highly efficient spray nozzle.","PeriodicalId":14391,"journal":{"name":"International Journal of Vehicle Structures and Systems","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82735232","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}
Single Expansion Ramp Nozzle (SERN) is a direct extension nozzle where the gas pressure flows from one place to other works only on one side. The SERN is a hypersonic speed demonstrator vehicle due to its advantages and operational limitations. The demonstrator vehicle is designed to attain a cruise flight at a speed of Mach 6.2. The operating limits given as constraints are the atmosphere limitations, i.e., within the lower atmosphere wherein the vehicle has to run on air-breathing scramjet engines. The project emphasizes the effect of performance parameters, namely thrust, lift and moment, due to variation in jet Mach number and jet pressure through a nozzle. The nozzle is considered separately due to the experimental limitations. The CAD model designed for the nozzle is taken. Only the vehicle's nozzle section is dissected from the whole model for the numerical simulation. The GAMBIT software is used to mesh the model and tocreate the domain space. The model is a 3D structure aligned to the 3 axis coordinate system, where the body's length is aligned along the x axis and width of the body along the z-axis. The cowl is attached to the combustion chamber exit, providing pitching stability to the vehicle. The model analysis is done in FLUENT, where the model to be solved is exported from gambit and imported to FLUENT. The cowl arrangement affects the nozzle performance and the effect of performance due to change in cowl geometry is studied. This paper presents the study of the performance parameter’s interactions with jet pressure, Mach number and cowl deflection of the nozzle
{"title":"Performance Characterization of Single Expansion Ramp Nozzle at Hypersonic Mach Number","authors":"Fakeha Azhar, S. Habeeb, P. Balguri, D. Govardhan","doi":"10.4273/ijvss.14.7.21","DOIUrl":"https://doi.org/10.4273/ijvss.14.7.21","url":null,"abstract":"Single Expansion Ramp Nozzle (SERN) is a direct extension nozzle where the gas pressure flows from one place to other works only on one side. The SERN is a hypersonic speed demonstrator vehicle due to its advantages and operational limitations. The demonstrator vehicle is designed to attain a cruise flight at a speed of Mach 6.2. The operating limits given as constraints are the atmosphere limitations, i.e., within the lower atmosphere wherein the vehicle has to run on air-breathing scramjet engines. The project emphasizes the effect of performance parameters, namely thrust, lift and moment, due to variation in jet Mach number and jet pressure through a nozzle. The nozzle is considered separately due to the experimental limitations. The CAD model designed for the nozzle is taken. Only the vehicle's nozzle section is dissected from the whole model for the numerical simulation. The GAMBIT software is used to mesh the model and tocreate the domain space. The model is a 3D structure aligned to the 3 axis coordinate system, where the body's length is aligned along the x axis and width of the body along the z-axis. The cowl is attached to the combustion chamber exit, providing pitching stability to the vehicle. The model analysis is done in FLUENT, where the model to be solved is exported from gambit and imported to FLUENT. The cowl arrangement affects the nozzle performance and the effect of performance due to change in cowl geometry is studied. This paper presents the study of the performance parameter’s interactions with jet pressure, Mach number and cowl deflection of the nozzle","PeriodicalId":14391,"journal":{"name":"International Journal of Vehicle Structures and Systems","volume":"37 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84980819","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}
P. Manikandan, R. Sudharsan, K. Divakar, S. N. Pillai, P. Premkumar
Flow separation in an aircraft is one of the ground causes of decrease in the lift and increase in the pressure drag which eventually leads to loss of energy, vibrations in machinery and may cause structural failure of the aircraft. Many studies and research works have been carried out on delaying boundary layer separation. One of such works is the implementation of various active and passive devices on the surface of the wing. In this research work, we have used one such device called a passive dimple. By placing these dimples on the upper surface of the wing, a turbulent flow is induced which produces vortices, causing the boundary layer to stay attached to the surface of the wing to some extent and thereby increasing the stall angle of the aircraft. In this research work, we have placed outward dimples on the upper surface of the wing at various positions and ran simulations at different angle of attacks to observe the effects.
{"title":"Stall Delay Characteristics Study of NACA 2412 Wing with Outward Dimples","authors":"P. Manikandan, R. Sudharsan, K. Divakar, S. N. Pillai, P. Premkumar","doi":"10.4273/ijvss.14.7.13","DOIUrl":"https://doi.org/10.4273/ijvss.14.7.13","url":null,"abstract":"Flow separation in an aircraft is one of the ground causes of decrease in the lift and increase in the pressure drag which eventually leads to loss of energy, vibrations in machinery and may cause structural failure of the aircraft. Many studies and research works have been carried out on delaying boundary layer separation. One of such works is the implementation of various active and passive devices on the surface of the wing. In this research work, we have used one such device called a passive dimple. By placing these dimples on the upper surface of the wing, a turbulent flow is induced which produces vortices, causing the boundary layer to stay attached to the surface of the wing to some extent and thereby increasing the stall angle of the aircraft. In this research work, we have placed outward dimples on the upper surface of the wing at various positions and ran simulations at different angle of attacks to observe the effects.","PeriodicalId":14391,"journal":{"name":"International Journal of Vehicle Structures and Systems","volume":"635 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86691850","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}
Incremental sheet forming (ISF) is an interesting new field of study in rapid sheet metal forming. ISF employs a basic mould to make parts with curved surfaces that do not require special equipment. To fulfil the needs of small scale and diversified markets around the world and address the difficulties of long production cycles and high prices, this technique has a wide variety of uses from aerospace to medical research. This work attempts to develop a Two Point Incremental Forming (TPIF) setup for the forming of stainless steel (AISI 316 L) sheets of uniform thickness. In this work, the forming process has been carried out by varying process parameters such as tool diameter, step depth, spindle speed and feed rate. Forming is carried out in a Vertical Milling Centre (VMC) with a hemispherical tungsten carbide tool. The output responses such as wall angle of the formed component, forming time, surface roughness, depth of the formed component was measured and was compared with the selected input parameters.
{"title":"Experimental Studies on Die based Two Point Incremental Forming","authors":"A. Visagan, P. Ganesh","doi":"10.4273/ijvss.14.7.17","DOIUrl":"https://doi.org/10.4273/ijvss.14.7.17","url":null,"abstract":"Incremental sheet forming (ISF) is an interesting new field of study in rapid sheet metal forming. ISF employs a basic mould to make parts with curved surfaces that do not require special equipment. To fulfil the needs of small scale and diversified markets around the world and address the difficulties of long production cycles and high prices, this technique has a wide variety of uses from aerospace to medical research. This work attempts to develop a Two Point Incremental Forming (TPIF) setup for the forming of stainless steel (AISI 316 L) sheets of uniform thickness. In this work, the forming process has been carried out by varying process parameters such as tool diameter, step depth, spindle speed and feed rate. Forming is carried out in a Vertical Milling Centre (VMC) with a hemispherical tungsten carbide tool. The output responses such as wall angle of the formed component, forming time, surface roughness, depth of the formed component was measured and was compared with the selected input parameters.","PeriodicalId":14391,"journal":{"name":"International Journal of Vehicle Structures and Systems","volume":"175 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79702771","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}
This research article presents a comparative experimental study on the performance, exhaust emission and combustion characteristics of a CI engine fuelled with neat diesel and with three kinds of blends viz. MD10 (neat diesel with 10% mosambi peel pyro oil), MDM10 (neat diesel with 10% mosambi peel pyro oil and 10% methanol), MD10+Rh2O3 (neat diesel with 10% mosambi peel pyro oil and nano rhodium oxide fuel additive). The experiments were conducted on a direct injection single-cylinder water-cooled four-stroke diesel engine operated at a constant engine speed of 1500 rpm and under varied brake power conditions. The results showed that MD10+Rh2O3 outperformed the rest in terms of all the performance, emission and combustion characteristics. MD10+Rh2O3 was found to have achieved, 5% higher brake thermal efficiency, 18.5% reduced SFC and 8% reduced exhaust gas temperatures respectively. This fuel has also achieved 10.5%, 5.5%, 9.45%, 11% marginal drop in noxious pollutants such as CO (Carbon Monoxide), unburnt HC (Hydrocarbons), NOx and smoke respectively. Cylinder peak pressures, heat release rate, ignition delay and combustion duration of MD10+ Rh2O3 are recorded to be considerably improved. Thus, using the nanoparticle added mosambi peels pyro oil (NMPPO) blended with diesel as an alternative fuel could impart an eco-friendly, efficient and improved engine operation.
{"title":"Comparative Performance and Emissions of CI Engine Fuelled with Diesel and Blends of Mosambi Peel Pyro Oil, Methanol and Nano Rh2O3 with Diesel","authors":"K. Venkatesan","doi":"10.4273/ijvss.14.7.19","DOIUrl":"https://doi.org/10.4273/ijvss.14.7.19","url":null,"abstract":"This research article presents a comparative experimental study on the performance, exhaust emission and combustion characteristics of a CI engine fuelled with neat diesel and with three kinds of blends viz. MD10 (neat diesel with 10% mosambi peel pyro oil), MDM10 (neat diesel with 10% mosambi peel pyro oil and 10% methanol), MD10+Rh2O3 (neat diesel with 10% mosambi peel pyro oil and nano rhodium oxide fuel additive). The experiments were conducted on a direct injection single-cylinder water-cooled four-stroke diesel engine operated at a constant engine speed of 1500 rpm and under varied brake power conditions. The results showed that MD10+Rh2O3 outperformed the rest in terms of all the performance, emission and combustion characteristics. MD10+Rh2O3 was found to have achieved, 5% higher brake thermal efficiency, 18.5% reduced SFC and 8% reduced exhaust gas temperatures respectively. This fuel has also achieved 10.5%, 5.5%, 9.45%, 11% marginal drop in noxious pollutants such as CO (Carbon Monoxide), unburnt HC (Hydrocarbons), NOx and smoke respectively. Cylinder peak pressures, heat release rate, ignition delay and combustion duration of MD10+ Rh2O3 are recorded to be considerably improved. Thus, using the nanoparticle added mosambi peels pyro oil (NMPPO) blended with diesel as an alternative fuel could impart an eco-friendly, efficient and improved engine operation.","PeriodicalId":14391,"journal":{"name":"International Journal of Vehicle Structures and Systems","volume":"104 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74218270","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}
S. Satish, C. Naveenkumar, S. Mohankumar, K. Palanisamy, V. Dharineesh, G. Dharmaraj
Air-oil separator is used to recover oil from the air leaving the compressor. The air-oil separator design is based on the minimum diameter of capturing oil droplet and the separation efficiency of the separator. The available air-oil separators are Cyclone, Labyrinth, wire and oil filter. In this work cyclone separator is proposed due to its higher separation efficiency for wide range of droplet size. The proposed model C1 to C6 is analysed using CFD tool and maximum separation efficiency is obtained for C4 model and minimum residence time and static pressure is obtained for C3 model. It is concluded that C3 model is finalized model due to least residence time and back pressure with acceptable separation efficiency.
{"title":"Numerical Optimization of Mechanical Air-Oil Cyclone Separator for Air Compressor","authors":"S. Satish, C. Naveenkumar, S. Mohankumar, K. Palanisamy, V. Dharineesh, G. Dharmaraj","doi":"10.4273/ijvss.14.7.07","DOIUrl":"https://doi.org/10.4273/ijvss.14.7.07","url":null,"abstract":"Air-oil separator is used to recover oil from the air leaving the compressor. The air-oil separator design is based on the minimum diameter of capturing oil droplet and the separation efficiency of the separator. The available air-oil separators are Cyclone, Labyrinth, wire and oil filter. In this work cyclone separator is proposed due to its higher separation efficiency for wide range of droplet size. The proposed model C1 to C6 is analysed using CFD tool and maximum separation efficiency is obtained for C4 model and minimum residence time and static pressure is obtained for C3 model. It is concluded that C3 model is finalized model due to least residence time and back pressure with acceptable separation efficiency.","PeriodicalId":14391,"journal":{"name":"International Journal of Vehicle Structures and Systems","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79640131","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}
India has the world's second-largest population and the demand for transportation is increasing. However, our energy resources for car engines are limited. Every day, India consumed over 4.9 million barrels of crude oil. 85 percent of total oil consumption is imported from nations such as Iran, Saudi Arabia and Russia, among others. India is ranked third in the world. Despite our efforts to transition from internal combustion to electric power, India's electricity is heavily reliant on coal, which accounts for 55 percent of total production. As a result of this circumstance, jatropha biodiesel is being sought as a diesel engine alternative fuel. According to the Indian government, the country will spend about Rs 8 lakh crores on diesel and petrol imports in 2021, with this figure expected to rise to Rs 25 lakh crores in the next five years. The features of jatropha biodiesel with various percentages of blending with diesel fuel, such as B0, B5, B10, B15, B20, B30, B40, B50 and B100 are investigated in this work.
{"title":"Study on Emission and Performance of Diesel Engines by adding Nano Particles to the Blended Fuels","authors":"T. Karthik, P. Kesavan, P. Sanjay, A. Imran","doi":"10.4273/ijvss.14.7.09","DOIUrl":"https://doi.org/10.4273/ijvss.14.7.09","url":null,"abstract":"India has the world's second-largest population and the demand for transportation is increasing. However, our energy resources for car engines are limited. Every day, India consumed over 4.9 million barrels of crude oil. 85 percent of total oil consumption is imported from nations such as Iran, Saudi Arabia and Russia, among others. India is ranked third in the world. Despite our efforts to transition from internal combustion to electric power, India's electricity is heavily reliant on coal, which accounts for 55 percent of total production. As a result of this circumstance, jatropha biodiesel is being sought as a diesel engine alternative fuel. According to the Indian government, the country will spend about Rs 8 lakh crores on diesel and petrol imports in 2021, with this figure expected to rise to Rs 25 lakh crores in the next five years. The features of jatropha biodiesel with various percentages of blending with diesel fuel, such as B0, B5, B10, B15, B20, B30, B40, B50 and B100 are investigated in this work.","PeriodicalId":14391,"journal":{"name":"International Journal of Vehicle Structures and Systems","volume":"41 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72911519","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}
The main objective of this research is to provide better controlling and stability to B767 aircraft, where a study of elevators for pitch control for the described longitudinal movement is conducted. Intelligent controllers are designed and introduced to the surfaces of the linearized model of B767 aircraft, to identify the performance level based on time response and stability analysis by using different transfer functions. Self-tuning PID Controller and designed hybrid intelligent controller with a combination of PID controller and fuzzy controller are proposed along with few sensors installation to obtain results. A comparative assessment and quantitative analysis of controllers are carried out using MATLAB Simulink. This research has shown that the performance of the aircraft has improved significantly.
{"title":"Hybrid Intelligent Controller Design and Stability Analysis for Controlling Boeing-767 Dynamics using Matlab","authors":"G. Namdeo, K. Arulmozhi, K. S. Kumar","doi":"10.4273/ijvss.14.7.20","DOIUrl":"https://doi.org/10.4273/ijvss.14.7.20","url":null,"abstract":"The main objective of this research is to provide better controlling and stability to B767 aircraft, where a study of elevators for pitch control for the described longitudinal movement is conducted. Intelligent controllers are designed and introduced to the surfaces of the linearized model of B767 aircraft, to identify the performance level based on time response and stability analysis by using different transfer functions. Self-tuning PID Controller and designed hybrid intelligent controller with a combination of PID controller and fuzzy controller are proposed along with few sensors installation to obtain results. A comparative assessment and quantitative analysis of controllers are carried out using MATLAB Simulink. This research has shown that the performance of the aircraft has improved significantly.","PeriodicalId":14391,"journal":{"name":"International Journal of Vehicle Structures and Systems","volume":"98 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76202208","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}
P. Anuj, N. Sangeetha, S. Ashraf, R. Vasanthkumar, T. Babin
In pressure vessel and pipe systems, gasketed flange joints are quite frequent and are also used in oil and gas wellheads and trees as spool end connections. Flanges are most commonly employed when a joining or disassembling junction is required. The process industry has long been concerned about leakage in gasketed flanged junctions. The installation and stress factors of a gasketed flange joint directly affect its sealing effectiveness. API 6A type 6B flange with a maximum pressure rating of 20,000 psi is examined in this study using API design procedures. Due to the symmetricity of the 8 bolted flange, a 45 section is taken for analysis. The findings of a parametric analysis of flange behaviour and bolt stresses are investigated by altering the bolt preload and internal pressure while keeping other flange independent variables constant.
{"title":"Investigation of Sealing Performance with Bolted Flange Joints with Gasket using FEA Method","authors":"P. Anuj, N. Sangeetha, S. Ashraf, R. Vasanthkumar, T. Babin","doi":"10.4273/ijvss.14.7.05","DOIUrl":"https://doi.org/10.4273/ijvss.14.7.05","url":null,"abstract":"In pressure vessel and pipe systems, gasketed flange joints are quite frequent and are also used in oil and gas wellheads and trees as spool end connections. Flanges are most commonly employed when a joining or disassembling junction is required. The process industry has long been concerned about leakage in gasketed flanged junctions. The installation and stress factors of a gasketed flange joint directly affect its sealing effectiveness. API 6A type 6B flange with a maximum pressure rating of 20,000 psi is examined in this study using API design procedures. Due to the symmetricity of the 8 bolted flange, a 45 section is taken for analysis. The findings of a parametric analysis of flange behaviour and bolt stresses are investigated by altering the bolt preload and internal pressure while keeping other flange independent variables constant.","PeriodicalId":14391,"journal":{"name":"International Journal of Vehicle Structures and Systems","volume":"17 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82940863","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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