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Vijay, S.
- Axial Flux Permanent Magnet Generator
Authors
1 Department of Electrical and Electronics Engineering, Sri Manakula Vinayagar Engineering College, Madagadipet, Pondicherry-605107, IN
Source
Artificial Intelligent Systems and Machine Learning, Vol 2, No 12 (2010), Pagination:Abstract
The axial flux (disc shape) permanent magnet machine is an attractive alternative to radial flux (cylindrical shape) machines in various applications. The axial flux configuration is amenable to the low-speed, high-torque operation energy system. In this project, the magnetic field distribution in a single rotor, permanent magnet, and ironless stator axial field generator in compact application is studied. The goal is to develop the analytical model for the machine by which we planned to conserve the mechanical energy which has been wasted in various applications like fans, electrical vehicles etc.Keywords
Axial Flux Machine, Energy Conservation, Axial Flux Generator, Hardware Model.- Simulated Optimum Temperature Distribution of Selective Laser Melting Process Using Design of Experiments
Authors
1 Dept of Mech Engg, Bapatla Engg College, Bapatla, Guntur Dt, IN
2 Dept. of Mech.Engg, AU College of Engg(A), Visakhapatnam, IN
Source
Manufacturing Technology Today, Vol 12, No 11 (2013), Pagination: 7-14Abstract
Temperature distribution while fabricating parts plays a vital role both in physical properties and mechanical properties. Model simulation using Analysis packages is a new trend in research to minimize time and experimental cost. In this paper a powerful statistical tool called Design of Experiments is used to simulate the Selective Laser Melting Process to find the dependency of various parameters like Laser Power, Scan Velocity, scan interval for optimum temperature distribution. 90W-7Ni-3Fe powder thermo-physical properties are used for simulation using ANSYS. Two levels for each process parameters were selected based on the literature and 24-1 fractional factorial design is used to investigate the most significant parameters of the process for maximum temperature distribution.
Response relation equation with the process parameters shows that most significant parameter for the maximum temperature distribution is laser power and scan velocity. Estimated optimum temperature is expressed in terms of significant parameters.
Keywords
Selective Laser Melting, Simulation Model, Design of Experiments, Temperature Distribution.- Green Environment Monitoring System (Gems) for Industries using Li-Fi Technology
Authors
1 School of Computing, SASTRA University, Thanjavur - 613401, Tamil Nadu, IN
Source
Indian Journal of Science and Technology, Vol 9, No 48 (2016), Pagination:Abstract
Objective: This work assures to design a green environment monitoring system for industries using Li-Fi technology to provide secured communication, high data rate transfer and pollution free environment. Methods: The LPC 2148 microcontroller with ARM 7 core is chosen for implementation. Light-emitting diodes are used as the source for data transmission and they are preferred as they have a longer life-time. Different sensors are deployed to monitor various parameters namely temperature, Gas and light intensity in an industrial environment and these sensors transmit the sensed information using Li-Fi technology in terms of flickering of LEDs. Linear quadratic estimation algorithm is implemented to improve the accuracy of sensor values. Findings: The proposed system is implemented in ARM 7 Core (LPC2148) that consumes less power. The designed system provides communication at the rate of 1.5 Mb/s over a distance of 5 meters and they are free from electromagnetic interference. They are not affected by artificial or natural light sources. Improvement/Applications: The implementation of Linear Quadratic estimator improved the accuracy of sensor output values. This technology is eco-friendly and the working atmosphere is conserved thereby ensuring a green environment. The sensors used in industrial applications communicate with low cost and also in a secured manner.Keywords
Industrial Environment Monitoring, Li-Fi, Light Emitting Diodes, Photo Detectors, Visible Light Communication.- Geometry Based Volume Reduction of Support Material for Rapid Prototyping Processes
Authors
1 Mechanical Engg. Dept., Bapatla Engg. College, Bapatla, IN
2 Dept. of Mechanical Engg., JNTU, Kakinada, IN