Download or read book Design Implementation and Control of a Magnetic Levitation Device written by Ehsan Shameli and published by . This book was released on 2008 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: Magnetic levitation technology has shown a great deal of promise for micromanipulation tasks. Due to the lack of mechanical contact, magnetic levitation systems are free of problems caused by friction, wear, sealing and lubrication. These advantages have made magnetic levitation systems a great candidate for clean room applications. In this thesis, a new large gap magnetic levitation system is designed, developed and successfully tested. The system is capable of levitating a 6.5(gr) permanent magnet in 3D space with an air gap of approximately 50(cm) with the traveling range of 20x20x30 cubic millimeters. The overall positioning accuracy of the system is 60 micro meters. With the aid of finite elements method, an optimal geometry for the magnetic stator is proposed. Also, an energy optimization approach is utilized in the design of the electromagnets.

Download or read book Design and Implementation of a Controller for a Magnetic Levitation System written by Ying-Shing Shiao and published by . This book was released on with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Design Implementation and Feedback Stabilization of a Permanent Magnet Levitation System written by Dhiraj Basnet and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Magnetic manipulators are a class of systems for noncontact control of magnetized objects at a distance. These systems have found a range of applications in minimally invasive medical procedures, microrobotics, magnetic tweezers, microfluidics, and lab-on-a-chip devices. The magnetic field used for manipulation is conventionally produced by arrays of electromagnets, which are simply controlled by their voltages. However, electromagnets suffer from the disadvantage of generating much weaker magnetic fields compared to the permanent magnets of similar size, weight, and cost. Therefore, research efforts are ongoing to replace electromagnets with permanent magnets in order to develop more compact and less expensive magnetic manipulators. In these manipulators, magnetic field is controlled by displacement of the permanent magnets using mechanical actuators. This thesis intends to replace electromagnets with permanent magnets in the magnetic levitation systems (MLS). An MLS is a one-dimensional (1D) magnetic manipulator that levitates magnetic objects against gravity by feedback control of magnetic force applied to them. Instead of controlling the magnetic force of electromagnets using their voltages, in this work, the magnetic force is controlled by a linear servomotor which adjusts the distance between a permanent magnet and the levitating object. Based on this concept, a permanent magnet MLS is designed, implemented, and stabilized by feedback control, levitating a ferromagnetic sphere of diameter 5 mm at an equilibrium point i.e. 3 mm above its initial position. The resulting MLS is tested in practice and its performance is verified by experiments. The MLS developed in this work features many properties of more complex 2D and 3D magnetic manipulators. Therefore, it provides a convenient means for early study of more complex magnetic manipulators. In particular, it can be used to empirically study the linear limitation of small bandwidth and nonlinear limitation of finite slew rate of the mechanical actuators on the overall performance, including the stability, of magnetic manipulators.

Download or read book Magnetic Levitation written by Hyung-Suk Han and published by Springer. This book was released on 2016-01-02 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive overview of magnetic levitation (Maglev) technologies, from fundamental principles through to the state-of-the-art, and describes applications both realised and under development. It includes a history of Maglev science and technology showing the various milestones in its advancement. The core concepts, operating principles and main challenges of Maglev applications attempted across various fields are introduced and discussed. The principle difficulties encountered when applying Maglev technology to different systems, namely air gap control and stabilization, are addressed in detail. The book describes how major advancements in linear motor and magnet technologies have enabled the development of the linear-motor-powered Maglev train, which has a high speed advantage over conventional wheeled trains and has the potential to reach speed levels achieved by aircraft. However, many expect that Maglev technology to be a green technology that is applied not only in rail transportation, but also in diverse other fields; to ensure clean transfer in LCD manufacturing, in ropeless high speed elevators, small capacity rail transportation, space vehicle launchers, missile testers, energy storage, and so on. These potential applications and their unique challenges and proposed technological solutions are introduced and discussed in depth. The book will provide readers from academia, research institutes and industry with insights on where and how to apply Maglev technology, and will serve as a guide to the realization of their Maglev applications.

Download or read book Design and Construction of a Magnetic Levitation Apparatus written by Trent Morgan Guess and published by . This book was released on 1994 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Design of a Magnetic Levitation System written by Jinbo Liu and published by . This book was released on 2004 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This thesis describes the analysis, design procedure, and real-time control of a magnetic levitation system. In this thesis, we explore the feasibility of using a new solution to suspend the ball. First a literature review on theoretical background and the development of magnetic levitation is presented. This is followed by the hardware design. In the next chapter, dynamic modeling of the maglev model, from its model identification to its linearization, is described. Then, development of a Matlab simulation model and specification (H/W, S/W) of the real-time digital controller are provided in detail. Experimental data is collected and compared to the theory. We propose a proportional-derivative controller combined to a nonlinear controller, and show that it makes the maglev system stable." --

Download or read book Design of a Magnetic Levitation System Using Feedback written by Michael K. Oklejewski and published by . This book was released on 2000 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Design and Analysis of a Magnetic Levitation System for Control Systems Courses written by Jason R. Dalenberg and published by . This book was released on 2011 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nonlinear Controller Design and Implementation for a Magnetic Levitation System written by Daniel L. Hall and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Author's abstract: In this study, an approach is presented to nonlinear control of a magnetic levitation system using artificial neural networks (ANNs). Two neural networks, the multi-layer perceptron (MLP) and the single multiplicative neuron (SMN), are investigated in this work. A novel form of ANN, namely, single multiplicative neuron (SMN), is proposed in place of the more traditional multi-layer perceptron (MLP). SMN derives its name from the single neuron computation model in neuroscience. Both off-line training and on-line learning of SMN have been considered along with off-line training of MLP. The SMN model is first trained off-line, to estimate the network parameters (weights and biases), using a population based stochastic optimization technique, namely, particle swarm optimization (PSO). An on-line learning algorithm has been developed for updating the SMN model parameters using a gradient-descent method. The ANN based techniques have been compared with a feedback linearization approach. The control algorithms have been developed and implemented on a hardware-in-the-loop (HIL) system of magnetic levitation in LabVIEW environment. The ANN based controllers performed very well and much better than the feedback linearization controller. However, the SMN structure was much simpler than the MLP with similar performance. With a simpler structure and faster computation, the SMN has the potential to be preferred to conventional MLP type ANNs for implementation in real-life, complex, nonlinear magnetic levitation systems.

Download or read book Magnetic Levitation Control System from Theory to Practice written by Dahiru Sani Shu'aibu and published by LAP Lambert Academic Publishing. This book was released on 2012-03 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the development of a magnetic levitation system from the theoretical aspect to practical aspect. The maglev system composes of electromagnet, controller and the sensors. The electromagnet is built around a steel core been one of the best ferromagnetic material. The co-energy function of the system is used to derive it is transfer function and state space mathematical models. It was established that the system was inherently unstable. A photoconductive cell is model to be used as a sensor; it senses the vertical position of the suspended ball and converts it to voltage which is used as a control signal. Two different stabilizing controllers are designed for the system: one employs the state feedback pole placement technique, the other employs cascade phase-lead compensator. In the final, phase-lead compensator is realized and practical implemented in the system and it has successfully suspended ferromagnetic materials of different sizes and weight. Thus, the book presents the idea from perceiving to realization of a magnetic levitation control system. this can be use to teach students a practical linearization and controlling of a non-linear system.

Download or read book Maglev System Design Considerations written by and published by . This book was released on 1991 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although efforts are now being made to develop magnetic levitation technologies in the United States, they have been underway for two decades in Germany and Japan. The characteristics of maglev systems being considered for implementation in the United States are speculative. A conference was held at Argonne National Laboratory on November 28--29, 1990, to discuss these characteristics and their implications for the design requirements of operational systems. This paper reviews some of the factors considered during that conference.

Download or read book Control and Design of a Single Degree of freedom Magnetic Levitation Demonstration written by Robert J. Baranowski and published by . This book was released on 2006 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt: Controlling and stabilizing magnetic suspension systems is a difficult design task because several non-linearities and noise in both magnet physics and sensor performance can cause instability. This thesis investigates methods of building and controlling a stable, single degree-of-freedom magnetic suspension system that will be robust to changes in ambient conditions. Synchronous detection is a technique that is successfully implemented in this hardware to create an optical position sensor that rejects a wide range of environmental light disturbances. Inspiration from two magnetic levitation demonstration setups at MIT yields a new operating, stable levitator with improved robustness.

Download or read book Design and Control of a Magnetically Levitated maglev System written by Nishant Chadha and published by . This book was released on 2004 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This thesis deals with the electromagnetic and dynamic analysis of the magnetically levitated system. A simple experiment illustrating the principles of electromagnetic suspension (EMS) is described simulation test results are given. A U-shaped hybrid maglev system made of steel and neodymium magnet (rare earth magnet) acting as a source of magnetic flux attracts the ferromagnetic body (Guideway). Levitation forces are created by a controllable magnetomotive. Finite element analysis has been done to determine the levitation forces and magnetic flux to be used for system modeling. This type of levitation is unstable without the feedback control therefore we use a robust controller to maintain the air gap between the body in motion and guideway. Various different controller design methods are evaluated for this nonlinear model and the results are compared. Sensorless detection of air gap length in the maglev system has also been investigated and formulations for various modes of operation are presented"--Abstract, leaf iii.

Download or read book Artificial Neural Network Control of a Magnetic Levitation System written by Mustapha Muhammad and published by LAP Lambert Academic Publishing. This book was released on 2012-06 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: Magnetic levitation (maglev) systems are nowadays employed in applications ranging from non-contact bearings and vibration isolations of sensitive machinery to high-speed passenger trains. In this work a mathematical model of a laboratory maglev system was derived using Lagrangian approach. Three controllers were designed for the maglev system and their performances were investigated via simulation using Simulink. Firstly, a pole-placement controller was designed on the basis of specifications on peak overshoot and settling time. Secondly, a nonlinear state feedback linearization control scheme was designed. Finally a 3-layer feed-forward artificial neural network (ANN) controller comprising 3-input nodes, a 5-neuron hidden layer and 1-neuron output layer was trained using the linear state feedback controller with a random reference signal. The robustness of the three control schemes was investigated with respect to parameter variations and reference step input magnitude variations. Presented Simulink simulation results show that the feedback linearization control scheme performed best followed by linear state feedback pole-assignment control.

Download or read book Design of Ga Fuzzy Controller for Magnetic Levitation Using Fpg written by Basil Hamed and published by LAP Lambert Academic Publishing. This book was released on 2011-10 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: The design of controllers for non- linear systems in industry is a complex and difficult task. The development of non-linear control techniques has been approaches in many different ways with varied results. One approach, which has shown promise for solving nonlinear control problems, is the use of fuzzy logic control. This book will discuss the Magnetic Levitation (Maglev) models as an example of nonlinear systems. It will also show the design of fuzzy logic controllers for this model to prove that the fuzzy controller can work properly with nonlinear system. Genetic Algorithm (GA) is used in this book as optimization method that optimizes the membership, output gain and inputs gain of the fuzzy controllers. Finally, fuzzy controller will be implemented using FPGA chip. The design will use a high-level programming language HDL for implementing the fuzzy logic controller using the Xfuzzy CAD tools to implement the fuzzy logic controller into HDL code. This book is designed for the professional and academic audience interested primarily in applications of fuzzy logic in engineering and technology.

Download or read book Development of Magnetic Levitation System written by Salmilah Moleng and published by . This book was released on 2010 with total page 59 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Road to Multi dimensional Magnetic Levitation written by Paul Gerardus Hlebowitsh and published by . This book was released on 2012 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: A stable multi-dimensional magnetic levitator was characterized and implemented. This thesis contains a full analysis of the feedback specifications, a short summary of the circuits used in the design of the setup, and results from the physical device. Two and three dimensional magnetic levitation systems were analyzed and designed. A modular cell of the two-dimensional levitator was implemented.