This document presents a numerical simulation of flow and pressure rise in a ducted axial fan. It develops equations to model three-dimensional and one-dimensional flow. MATLAB code is used to implement Simpson's 1/3rd rule for numerical integration of the equations. The code computes pressure rise values for varying fan parameters like inlet velocity, whirl velocity, rotor speed, and blade diameter. The simulation aims to optimize pressure rise in the ducted axial fan.
Analysis and simulation of rayleigh fading channel in digital communicationeSAT Journals
Abstract The objective of this paper is to analyze slow, flat, Rayleigh fading channels in modern digital communication systems having different coherent modulation techniques. Most of the packages can only be used to analyze analog communication systems, but modern systems are, increasingly, digital. Improved many-on-many (IMOM) is a two-dimensional, graphical-oriented, radio frequency modeling tool is used to determine probability of channel bit error rather than information bit error, which allows generic solutions independent of the specifics of the system under investigation as long as the particular modulation type is known. Constellation diagram of various modulation techniques, power of faded signal and signal at receiver are plotted in MATLAB environment. The Joint Tactical Information Distribution System (JTIDS) is suitable example of this analysis. Keywords- IMOM, Rayleigh Fading, Bit Error, MATLAB
Model predictive-fuzzy-control-of-air-ratio-for-automotive-enginespace130557
Automotive engine air-ratio plays an important role of
emissions and fuel consumption reduction while maintains
satisfactory engine power among all of the engine control variables.
Analysis and simulation of rayleigh fading channel in digital communicationeSAT Journals
Abstract The objective of this paper is to analyze slow, flat, Rayleigh fading channels in modern digital communication systems having different coherent modulation techniques. Most of the packages can only be used to analyze analog communication systems, but modern systems are, increasingly, digital. Improved many-on-many (IMOM) is a two-dimensional, graphical-oriented, radio frequency modeling tool is used to determine probability of channel bit error rather than information bit error, which allows generic solutions independent of the specifics of the system under investigation as long as the particular modulation type is known. Constellation diagram of various modulation techniques, power of faded signal and signal at receiver are plotted in MATLAB environment. The Joint Tactical Information Distribution System (JTIDS) is suitable example of this analysis. Keywords- IMOM, Rayleigh Fading, Bit Error, MATLAB
Model predictive-fuzzy-control-of-air-ratio-for-automotive-enginespace130557
Automotive engine air-ratio plays an important role of
emissions and fuel consumption reduction while maintains
satisfactory engine power among all of the engine control variables.
Performance prediction of a turboshaft engine by using of one dimensional ana...ijmech
Performance estimation of the axial flow gas turbines under variety of operating conditions like different speeds and pressure ratios has been hampered by lack of reliable experimental data and experiments cost.Simulation of gas turbine is a simple way to reduce testing costs and complexity.One-dimensional (1D).Simulation is a simple, fast and accurate method for performance prediction of turbine with different geometries. In this approach, inlet flow conditions and turbine geometry are known and by considering loss model, the turbine performance characteristics are predicted. In following work, that is based on one dimensional modelling method, after the presentation of solution algorithm by trial and error method and introduction of different loss models for modelling, this method were examined for a turbo shaft engine and
compared with experimental results. Comparison of the results with experimental data shows so good adaptation. Also according to these results, Kacker and Okapuu’s developed model gave the closest results to the reference data.
Analytical Evaluation of Generalized Predictive Control Algorithms Using a Fu...inventy
Research Inventy : International Journal of Engineering and Science is published by the group of young academic and industrial researchers with 12 Issues per year. It is an online as well as print version open access journal that provides rapid publication (monthly) of articles in all areas of the subject such as: civil, mechanical, chemical, electronic and computer engineering as well as production and information technology. The Journal welcomes the submission of manuscripts that meet the general criteria of significance and scientific excellence. Papers will be published by rapid process within 20 days after acceptance and peer review process takes only 7 days. All articles published in Research Inventy will be peer-reviewed.
Comparitive analysis of doa and beamforming algorithms for smart antenna systemseSAT Journals
Abstract This paper revolves around the implementation of Direction of arrival and Adaptive beam-forming algorithms for Smart Antenna Systems. This paper also investigates the implementation of algorithms on various planner array geometries viz. circular and rectangular. Music algorithm is primarily finds the possible location of desired user and adaptive beam-forming algorithms such as LMS, RLS and CMA algorithms adapts the weights of the array. DOA estimation gives the maximum peak of spectrum with respect to angle of arrival where the desired user is supposed to exist. After DOA estimation weights of array antenna are changed with the changing received signal. This methodology is called as Spectral estimation, which allows the antenna pattern to steer in desired direction estimated by DOA and simultaneously null out the interfering signals. Rate of convergence is the major criterion for comparison for adaptive beam-forming algorithms. Keywords: DOA, MUSIC, LMS, RLS, CMA, SAS.
OPTIMIZATION OF COST 231 MODEL FOR 3G WIRELESS COMMUNICATION SIGNAL IN SUBURB...Onyebuchi nosiri
ABSTRACT Radio propagation models are important tools adopted for the characterization and optimization of wireless communication signals in a propagation environment. In this paper, the Cost 231 model was optimized for 3G wireless communication signal in Aggrey Road (04˚ 45̀ .06˝N, 07˚ 02̀ .24˝E), a suburban area in Port Harcourt, Nigeria. Phone-Based Drive Test was adopted for field measurement using TEMS 11 network simulator. The optimization process was implemented through the use of Least Square Algorithm taking into account the initial offset parameters and the slope of the model curve in Cost 231 model for the process. The performance of the optimized model using the statistical tools in Minitab-14 software was evaluated for the Mean Absolute Deviation (MAD) and the Mean Squared Deviation (MSD) respectively. The results obtained demonstrated the following parametric values: 1.196, 2.01 and 1.179, 1.94 for Cost 231 and Optimized models respectively. The optimized model is recommended for deployment for a better and accurate path loss prediction on the environment of study.
Optimization of design of mixed flow centrifugal pump impeller using cfdeSAT Journals
Abstract
Centrifugal pumps are widely used hydraulic machines, irrespective of the fact that their performance is generally not very good. So, turning them into more efficient machines is quite a challenge. The performance of a centrifugal pump is highly dependent on its geometrical parameters and its vane profile. In order to analyze the flow through complex systems like centrifugal pumps, Computation fluid dynamics (CFD) has been used. This work aims to study the performance analysis of a centrifugal mixed flow pump designed to deliver 0.25 m3/s of water with a head of 20 m at a speed of 1450 rpm using ANSYS CFX (ver.14.0). PTC Creo (ver. 2.0) has been used to model the pump unit. The performance of the pump was first determined using the existing vane angles and thickness of the blade then, the inlet vane angle, the outlet vane angle along with the thickness of the blade has been varied to analyze the pump’s performance . The results show that for an initial inlet angle 21.08˚, outlet angle 16.28˚ and blade thickness as 10mm, the efficiency of the pump was 84%. However, the efficiency of pump rises to 89.19% for the optimized angles and blade thickness.
AIROPT: A Multi-Objective Evolutionary Algorithm based Aerodynamic Shape Opti...Abhishek Jain
Above Research Paper can be downloaded from www.zeusnumerix.com
The paper aims to optimize an airfoil shape for minimum drag and maximum lift to drag ratio. Multi-objective evolutionary algorithm based modular optimization framework is used for shape optimization. The airfoil geometry has been parametrized using Bézier curves for generating the camber and thickness surfaces. XFOIL has been used to estimate the pressure and boundary layer edge velocity distributions. Pareto plots for objectives are shown for both the objectives. Authors - Sandeep S (Zeus Numerix), S Rangasamy (T Cube), S Raghunath (Univ of Queensland)
DESIGN AND ANALYSIS OF HEAVY VEHICLE CHASSIS USING HONEY COMB STRUCTUREIjripublishers Ijri
Automotive chassis is a skeletal frame on which various mechanical parts like engine, tires, axle assemblies, brakes,
steering etc. are bolted. The chassis is considered to be the most significant component of an automobile. It is the most
crucial element that gives strength and stability to the vehicle under different conditions.
This thesis deals with the design optimization and material suggestion for heavy vehicle chassis (container vehicle).
In the first step literature survey will be conducted for further processes (for the selection of material and geometric
selection).
In the next step modeling will be done to carry out the analysis. Structural Analysis will be conducted using traditional
material M.S; Composite materials FRP (E-glass)& Carbon epoxy (S-2 glass), also analysis will be conducted on present
and updated models.
In the next step impact test and fatigue analysis will be conducted on same to find impact and fatigue characteristics.
Objective: By doing this project chassis manufacturing company can save time & efforts because of easy manufacturing
method. End user can save money on chassis purchase and savings on reduced fuel consumption due to low weight of
chassis with composites
Performance prediction of a turboshaft engine by using of one dimensional ana...ijmech
Performance estimation of the axial flow gas turbines under variety of operating conditions like different speeds and pressure ratios has been hampered by lack of reliable experimental data and experiments cost.Simulation of gas turbine is a simple way to reduce testing costs and complexity.One-dimensional (1D).Simulation is a simple, fast and accurate method for performance prediction of turbine with different geometries. In this approach, inlet flow conditions and turbine geometry are known and by considering loss model, the turbine performance characteristics are predicted. In following work, that is based on one dimensional modelling method, after the presentation of solution algorithm by trial and error method and introduction of different loss models for modelling, this method were examined for a turbo shaft engine and
compared with experimental results. Comparison of the results with experimental data shows so good adaptation. Also according to these results, Kacker and Okapuu’s developed model gave the closest results to the reference data.
Analytical Evaluation of Generalized Predictive Control Algorithms Using a Fu...inventy
Research Inventy : International Journal of Engineering and Science is published by the group of young academic and industrial researchers with 12 Issues per year. It is an online as well as print version open access journal that provides rapid publication (monthly) of articles in all areas of the subject such as: civil, mechanical, chemical, electronic and computer engineering as well as production and information technology. The Journal welcomes the submission of manuscripts that meet the general criteria of significance and scientific excellence. Papers will be published by rapid process within 20 days after acceptance and peer review process takes only 7 days. All articles published in Research Inventy will be peer-reviewed.
Comparitive analysis of doa and beamforming algorithms for smart antenna systemseSAT Journals
Abstract This paper revolves around the implementation of Direction of arrival and Adaptive beam-forming algorithms for Smart Antenna Systems. This paper also investigates the implementation of algorithms on various planner array geometries viz. circular and rectangular. Music algorithm is primarily finds the possible location of desired user and adaptive beam-forming algorithms such as LMS, RLS and CMA algorithms adapts the weights of the array. DOA estimation gives the maximum peak of spectrum with respect to angle of arrival where the desired user is supposed to exist. After DOA estimation weights of array antenna are changed with the changing received signal. This methodology is called as Spectral estimation, which allows the antenna pattern to steer in desired direction estimated by DOA and simultaneously null out the interfering signals. Rate of convergence is the major criterion for comparison for adaptive beam-forming algorithms. Keywords: DOA, MUSIC, LMS, RLS, CMA, SAS.
OPTIMIZATION OF COST 231 MODEL FOR 3G WIRELESS COMMUNICATION SIGNAL IN SUBURB...Onyebuchi nosiri
ABSTRACT Radio propagation models are important tools adopted for the characterization and optimization of wireless communication signals in a propagation environment. In this paper, the Cost 231 model was optimized for 3G wireless communication signal in Aggrey Road (04˚ 45̀ .06˝N, 07˚ 02̀ .24˝E), a suburban area in Port Harcourt, Nigeria. Phone-Based Drive Test was adopted for field measurement using TEMS 11 network simulator. The optimization process was implemented through the use of Least Square Algorithm taking into account the initial offset parameters and the slope of the model curve in Cost 231 model for the process. The performance of the optimized model using the statistical tools in Minitab-14 software was evaluated for the Mean Absolute Deviation (MAD) and the Mean Squared Deviation (MSD) respectively. The results obtained demonstrated the following parametric values: 1.196, 2.01 and 1.179, 1.94 for Cost 231 and Optimized models respectively. The optimized model is recommended for deployment for a better and accurate path loss prediction on the environment of study.
Optimization of design of mixed flow centrifugal pump impeller using cfdeSAT Journals
Abstract
Centrifugal pumps are widely used hydraulic machines, irrespective of the fact that their performance is generally not very good. So, turning them into more efficient machines is quite a challenge. The performance of a centrifugal pump is highly dependent on its geometrical parameters and its vane profile. In order to analyze the flow through complex systems like centrifugal pumps, Computation fluid dynamics (CFD) has been used. This work aims to study the performance analysis of a centrifugal mixed flow pump designed to deliver 0.25 m3/s of water with a head of 20 m at a speed of 1450 rpm using ANSYS CFX (ver.14.0). PTC Creo (ver. 2.0) has been used to model the pump unit. The performance of the pump was first determined using the existing vane angles and thickness of the blade then, the inlet vane angle, the outlet vane angle along with the thickness of the blade has been varied to analyze the pump’s performance . The results show that for an initial inlet angle 21.08˚, outlet angle 16.28˚ and blade thickness as 10mm, the efficiency of the pump was 84%. However, the efficiency of pump rises to 89.19% for the optimized angles and blade thickness.
AIROPT: A Multi-Objective Evolutionary Algorithm based Aerodynamic Shape Opti...Abhishek Jain
Above Research Paper can be downloaded from www.zeusnumerix.com
The paper aims to optimize an airfoil shape for minimum drag and maximum lift to drag ratio. Multi-objective evolutionary algorithm based modular optimization framework is used for shape optimization. The airfoil geometry has been parametrized using Bézier curves for generating the camber and thickness surfaces. XFOIL has been used to estimate the pressure and boundary layer edge velocity distributions. Pareto plots for objectives are shown for both the objectives. Authors - Sandeep S (Zeus Numerix), S Rangasamy (T Cube), S Raghunath (Univ of Queensland)
DESIGN AND ANALYSIS OF HEAVY VEHICLE CHASSIS USING HONEY COMB STRUCTUREIjripublishers Ijri
Automotive chassis is a skeletal frame on which various mechanical parts like engine, tires, axle assemblies, brakes,
steering etc. are bolted. The chassis is considered to be the most significant component of an automobile. It is the most
crucial element that gives strength and stability to the vehicle under different conditions.
This thesis deals with the design optimization and material suggestion for heavy vehicle chassis (container vehicle).
In the first step literature survey will be conducted for further processes (for the selection of material and geometric
selection).
In the next step modeling will be done to carry out the analysis. Structural Analysis will be conducted using traditional
material M.S; Composite materials FRP (E-glass)& Carbon epoxy (S-2 glass), also analysis will be conducted on present
and updated models.
In the next step impact test and fatigue analysis will be conducted on same to find impact and fatigue characteristics.
Objective: By doing this project chassis manufacturing company can save time & efforts because of easy manufacturing
method. End user can save money on chassis purchase and savings on reduced fuel consumption due to low weight of
chassis with composites
Differential and Rear Axle Drives, by Jeevan B MJeevan B M
A differential is a device capable of transmitting torque and rotation through three shafts, almost always used in one of two ways.
Rear axle drives are the drives which employed for the rear axle the spring take the weight of the body.
IN THIS BOOK DETAILS OF AUTOMOBILE CHASSIS BOOK
contents
1.0 Chassis, Frame and Body
1.1 Introduction of Chassis frame
1.2 Layout of the Chassis and its main components
1.3 Functions of the Chassis frame
1.4 Types of Chassis frames
1.5 Various loads acting on the frame
1.6 State the different bodies used in automobiles
1.7 Explain the requirements of bodies for various types of
vehicles viz. private, commercial etc.
2.0 Steering Sytem
2.1 Requirement of the Vehicle steering
2.2 Types of Steering ears, systems and power steering
2.3 Steering linkages mechanism under steering, over steering
2.4 Turning radius
2.5 Wheel alignment of Ackerman’s & Devis Steering gear,
Mechanism
2.6 Steering geometry – Caster, Camber, King pin inclination, toe
in and toe out
2.7 Steering defects – wheel woubble and shimmy
2.8 List our the type of steering system used in various vehicles
3.0 Braking system
3.1 Explain Functions of brakes
3.2 Requirements of automobile brakes
3.3 Explain stopping time and stopping distance
3.4 Type of Braking systems – Disc and Drum braking system
3.5 Construction and working of Mechanical, hydraulic, and air
brakes
3.6 List out the types of brakes used in various vehicles
4.0 Suspension System
4.1 Requirement of a automobile suspension system
4.2 Types of suspension system – conventional and Independent
4.3 Types of springs – Laminated spring, coil spring, helical spring
4.4 Need of Shock absorber – construction and working of
different types of shock absorbers
4.5 Stabilizer bar and torsion bar
4.6 List out the type of suspension system used in various vehicles
5.0 Seat, Door and Window mechanism
5.1 Construction and working of door lock mechanism
5.2 Construction and working of manual window regulating
mechanism
5.3 Construction and working of power window regulating
mechanism
5.4 Construction and working of seat adjusting mechanism
6.0 Air Conditioning of motor vehicles
6.1 Necessity of automobile air conditioning
6.2 Construction and working of passenger car air conditioning
7.0 Painting of automobiles
7.1 Body painting
7.2 Different types of painting – Spray painting – hand painting
procedures
8.0 Automobile Pollution
8.1 Effects of automobile pollution on environment and human
beings
8.2 Types of automobile emissions
8.3 Treatment of exhaust gases by using catalytic convectors
8.4 Measurement of percentage of pollutants from petrol &
Diesel vehicles with the help of exhaust gas analyzers
9.0 Legal aspects of motor vehicles
9.1 Traffic signs and signals
9.2 Registration requirements
9.3 Necessity of permits for commercial vehicles
9.4 Insurance coverage
9.5 Procedure for obtaining driving licenses
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
Experimental dataset to develop a parametric model based of DC geared motor i...IJECEIAES
This paper presents the application of a System Identification based on Particle Swarm Optimization (PSO) technique to develop parametric model of experimental dataset of DC Geared motor in feeder machine. The experimental was conducted to measure the input (voltage) and output (speed) data. The actual data is used to be optimized using PSO algorithm. The parameter emphasized is Time, Man Square Error (MSE) and Average Time. One of the best model has been chosen based on the optimum parameters.
Tech transfer making it as a risk free approach in pharmaceutical and biotech iniaemedu
Tech transfer is a common methodology for transferring new products or an existing
commercial product to R&D or to another manufacturing site. Transferring product knowledge to the
manufacturing floor is crucial and it is an ongoing approach in the pharmaceutical and biotech
industry. Without adopting this process, no company can manufacture its niche products, let alone
market them. Technology transfer is a complicated, process because it is highly cross functional. Due
to its cross functional dependence, these projects face numerous risks and failure. If anidea cannot be
successfully brought out in the form of a product, there is no customer benefit, or satisfaction.
Moreover, high emphasis is in sustaining manufacturing with highest quality each and every time. It
is vital that tech transfer projects need to be executed flawlessly. To accomplish this goal, risk
management is crucial and project team needs to use the risk management approach seamlessly.