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Servo Position Control in Hard Disk Drive of a Computer Using MRAC Integrating PID Algorithm
Paulinus Chinaenye Eze,
Chidiebere Alison Ugoh,
Chibuike Patrick Ezeabasili,
Bonaventure Onyeka Ekengwu,
Lakpan Emmanuel Aghoghovbia
Issue:
Volume 2, Issue 4, December 2017
Pages:
97-105
Received:
19 May 2017
Accepted:
19 June 2017
Published:
21 July 2017
DOI:
10.11648/j.ajset.20170204.11
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Abstract: This paper has presented a control system for read/write (R/W) head position control of a hard disk drive (HDD) using model reference adaptive control (MRAC) integrating proportional integral and derivative (PID) algorithm. It is desired that the (R/W) head of a HDD be accurately positioned so as to maintain appropriate track during operation. A dynamic model of a hard disk read/write (R/W) head position of a computer was obtained. A MRAC which combines PID algorithm was developed to give the so called MRAC PID controller in Matlab/Simulink environment. The controller was integrated with the control loop of the model dynamic. Simulation was performed in Matlab/Simulink environment. The results obtained showed that the system responses of R/W Head position are appreciably improved within the range of adaptive gain chosen.
Abstract: This paper has presented a control system for read/write (R/W) head position control of a hard disk drive (HDD) using model reference adaptive control (MRAC) integrating proportional integral and derivative (PID) algorithm. It is desired that the (R/W) head of a HDD be accurately positioned so as to maintain appropriate track during operation. A dy...
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IoT Based Stepper Motor Position Control for Industrial Automation
Lakshmi Narayana Roshanna,
Nagabhushan Raju Konduru
Issue:
Volume 2, Issue 4, December 2017
Pages:
106-111
Received:
18 October 2017
Accepted:
30 October 2017
Published:
25 November 2017
DOI:
10.11648/j.ajset.20170204.12
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Abstract: This paper describes the design and implementation of stepper motor control system based on Internet of Things (IoT). Due to the development of digital control systems, hybrid stepper motors became more attractive to be used in robotics and computer numerical control machines, where they have to perform high-precision positioning operations without any feedback sensor. The objective of the present paper is to use NodeMcu aWiFi integrated microcontroller to control actuators like stepper motor through IoT.
Abstract: This paper describes the design and implementation of stepper motor control system based on Internet of Things (IoT). Due to the development of digital control systems, hybrid stepper motors became more attractive to be used in robotics and computer numerical control machines, where they have to perform high-precision positioning operations without...
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Smart Car Parking Management System Using IoT
Aniket Gupta,
Sujata Kulkarni,
Vaibhavi Jathar,
Ved Sharma,
Naman Jain
Issue:
Volume 2, Issue 4, December 2017
Pages:
112-119
Received:
23 May 2017
Accepted:
2 August 2017
Published:
30 November 2017
DOI:
10.11648/j.ajset.20170204.13
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Abstract: Proliferation in the number of vehicles is leading to problems of vehicles parking at an appropriate place especially the car parking. This indirectly leads to traffic congestion. This is because of the fact that current transportation infrastructure and car park facility are unable to cope with the arrival of large number of vehicles on the road. To alleviate the aforementioned problem, authors proposed a Smart Parking Management System that helps users to automatically find a free parking space with a smaller amount. Smart Parking involves use of Ultrasonic sensor, Arduino Uno, ESP8266-01 Wi-Fi Module, Cloud server. IOT based new parking platform enable to connect, analyze and automate data gathered from devices and execute smart parking possible. Smart parking would enable vehicle occupancy, monitoring and managing of available parking space in real-time that reducing the environmental pollution. Proposed system provides optimize usage of parking space and get considerable revenue generation.
Abstract: Proliferation in the number of vehicles is leading to problems of vehicles parking at an appropriate place especially the car parking. This indirectly leads to traffic congestion. This is because of the fact that current transportation infrastructure and car park facility are unable to cope with the arrival of large number of vehicles on the road. ...
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Application of Distribution System Automatic Capacitor Banks for Power Factor Improvement (132/66/33 kV, 90 MVA Aung Chan Thar (Monywa) Substation in Myanmar)
Issue:
Volume 2, Issue 4, December 2017
Pages:
120-131
Received:
4 November 2017
Accepted:
20 November 2017
Published:
14 December 2017
DOI:
10.11648/j.ajset.20170204.14
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Abstract: Various inductive loads used in all industries deals with the problem of power factor improvement. Capacitor bank connected in shunt helps in maintaining the power factor closer to unity. They improve the electrical supply quality and increase the efficiency of the system. Also the line losses are also reduced. Shunt capacitor banks are less costly and can be installed anywhere. This paper deals with shunt capacitor bank designing for power factor improvement considering overvoltage for substation installation. The main reason of installing a capacitor bank is to reduce electricity costs. This inappropriate installation without enough study gives rise to a great variety of technical problems. Therefore, the fact that capacitor banks are designed for long-term use should be considered. A capacitor consists of two conducting plates separated by a layer of insulating material called the dielectric. A capacitor may be thought of as a battery that stores and releases current to improve the power factor.
Abstract: Various inductive loads used in all industries deals with the problem of power factor improvement. Capacitor bank connected in shunt helps in maintaining the power factor closer to unity. They improve the electrical supply quality and increase the efficiency of the system. Also the line losses are also reduced. Shunt capacitor banks are less costly...
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Behavior and Analysis of Reinforced Self-Compacted Concrete Beam Column Connection Subjected to Fire
Fatma Eid,
Khaled Heiza,
Mahmoud Elmahroky
Issue:
Volume 2, Issue 4, December 2017
Pages:
132-140
Received:
1 November 2017
Accepted:
20 November 2017
Published:
21 December 2017
DOI:
10.11648/j.ajset.20170204.15
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Abstract: The present work is concerned with the experimental and analytical study of the behaviour of reinforced concrete beam-column connections exposed to fire under loading and to evaluate the reduction in concrete strength during fire. This research is divided into two parts, the first part is the experimental program, and the second is the theoretical analysis using finite element program (ANSYS). The experimental program include one-third scale specimens have been casted from self-compacted concrete. Three specimens were exposed to 600°C for one hour, other 3 specimens exposed to 600°C for two hours and the last 3 specimens as a control not exposed to fire. The effect of some parameters on the RC connection's behaviour like reinforcement ratio, amount of stirrups on RC connection and fire duration were studied. Experimental program extended also to study heat distribution inside RC beam – column connections by measuring temperature at points distributed at sections all over connection. Cracks propagation, strain, deflection, initial crack and failure loads were recorded, analysed and discussed.
Abstract: The present work is concerned with the experimental and analytical study of the behaviour of reinforced concrete beam-column connections exposed to fire under loading and to evaluate the reduction in concrete strength during fire. This research is divided into two parts, the first part is the experimental program, and the second is the theoretical ...
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