Inductrack maglev pdf merge

Recently, magnetic levitation maglev technology for high speed ground transportation hsgt has been proposed for many intercity and regional lines in maglev program in korea free download abstract maglev project team at kimm has been leading development of attraction type urban transit maglev for the past 10 years. The result is considerable trip time savings and faster trips which makes its commercialisation feasible. Here described is a lightweight, low cost, high capacity maglev conveyor suitable for transporting 2,000,000 barrelsday of crude oil 1,500 miles 2,400 km from kazakhstan. As a maglev system, inductrack allows for a short turning radius and is designed for quiet operation. The previous work of paul friend in 2004 includes the development of a laboratory scale model train containing permanent magnets, hung above a rotating wheel.

Pdf swissmetro polarized linear motor combined with. Constructing an inductrack maglev j0820 objectivesgoals in our project constructing an inductrack maglev, our engineering goal was to construct a magnetically levitated train complete with a propulsion track. In order to merge the control screen of the control computer with the. The name maglev is derived from magnetic levitation. The goal of the magnetic levitation train maglev project is to develop a small scale magnetic levitation train based on inductrack technology developed by dr. A simple permanentmagnetexcited maglev geometry provides levitation forces and is stable against vertical displacements from equilibrium but is unstable against horizontal displacements. Magnetic levitation train technology the objective of this project is the creation of a laboratory scale magnetic levitating train. General atomics low speed maglev technology development. Closed loop control of halbach array magnetic levitation. Inductrack replaces the electromagnets in conventional systems with permanent magnets, which dont require a power source in order to generate a magnetic field. The ladder track is made of unpowered litz wire cables, and the laminated track is. Urban and intercity maglev systems could represent a practical and energyefficient solution to pressing transit needs. Inductrack iii for superefficient leviation and movement. Big maglev plans have been proposed in the us, including a large system for pennsylvania.

Laminated track design for inductrack maglev system. While maglev trains with passengers travel much slower, they still can travel twice as fast as their wheeled counterparts. A track of windings is located between the pair of halbach. Inductrack i is designed for high speeds, whileinductrack ii is suited for slow speeds. Redesign of rotary inductrack for magnetic train levitation bradley university department of electrical and computer engineering. This design allows for levitation at low velocities. The inductrack system isfail safe in the event of a power failure. Hyperloop transportation says it will use a cheaper, safer form of. Maglev derived from magnetic levitation is a system of train transportation that uses two sets of magnets, one set to repel and push the train up off the track, and another set to move the elevated train ahead, taking advantage of the lack of friction. The track will be of the inductrack design, using closepacked conductors, made utilizing thin aluminum or copper sheets. Recent innovations in maglev technology, such as the inductrack system, promise failproof operation. The reason for choosing the inductrack method and a basic explanation of the inductrack method for magnetic levitation are given. The inductrack possibilities and drawbacks use the inductrack levitation system to propel spacecrafts into space possibility to accelerate spacecraft 950 kmhr and save 30 to 40 percent on rocket fuel to make ride comfortable to passengers, other aerodynamic.

A real comparison is lacking and not possible since noone has built an inductrack system yet while maglev systems do exist. There are seven main functionalities in the gts which need to be developed. If the power fails, the train can slow downgradually and stop on its auxillary wheels. Inductrack iii for superefficient leviation and movement of. One electromagnet pole faces a black post upon which a 2. Dynamic modeling, timedomain analysis, pi and pid feedback control. Onboard electronics and passengers with electromagnetic medical implants are unaffected by inductrack s magnetic fields. Passive magnetic levitation maglev and eddy current nus. Maglev 1 magnetic levitation experiment quanser consulting inc. The magnetic forces are assigned to lift and propel the vehicles along the guide way. In october 2016, a japan railway maglev bullet train blazed all the way to 374 mph 601 kph during a short run. Pdf the inductrack approach to magnetic levitation.

All equations in the following section have been developed by the inductrack. Magnetic levitation track construction instruction manual. His inductrack team formulated the governing equations of the halbach array inductrack. Maglev train magnetic levitation abbreviated as maglev is an advanced technology of levitation that uses magnetic forces for the propulsion of vehicles rather than using wheel, bearing and axels. Gas passive maglev system uses permanent magnetics on vehicles and linear synchronous motors on guideways to levitate and propel vehicles. Status of the general atomics low speed urban maglev. The levitation is induced by the motion of the train. The simplicity of the inductrack should make it substantially less expensive than the present eds or ems maglev. During this part of the project, we try to combine the two. Inductrack project gutenberg selfpublishing ebooks. The sunon patented maglev design is based on magnetic principles and forces that not only propel the fan but also ensure stable rotation over its entire 360 degrees of movement. Redesign of rotary inductrack for magnetic train levitation bradley university department of electrical and computer engineering senior capstone project. Apr 3, high reliability and lower maintenance and operating costs make magnetic levitation maglev technology integral to advancing the nations.

Nonfunctioning magnetic levitation maglev train at old dominion university odu thesis. This paper discusses the propulsion technology of magnetic levitation train from an electrical engineering point of view. Control of halbach array magnetic levitation system height. The ball elevation from the post is measured using a sensor embedded in the post. Another magnetic levitation alternative for consideration is based on the inductrack developed at the lawrence livermore national laboratory. The track can be in one of two configurations, a ladder track and a laminated track. May 09, 2016 the system is a cheaper, safer alternative to regular magnetic levitation, or maglev, which is currently in operation powering highspeed trains in china and europe. The key difference between japanese and german maglev train technology is that the japanese trains use supercooled, superconducting electromagnets. The common point in all applications is the lack of contact and thus no wear and friction.

Redesign of rotary inductrack for magnetic train levitation. The inductrack can be modeled as an rl circuit, shown in figure 3. This is the first inductrack model made in national university of singapore nus. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. The autonomous pods ensure no accidents and is propelled by electric engines suitable for renewable energy. The inductrack approach to magnetic levitation pdf. Inductrack maglev system could allow trains to glide. Llnl developed a maglev method in the late 1990s called the inductrack method. This lesson is designed for students to have ample time to explore the properties of magnets.

An inductrack system is then used in conjunction with this system to effect stabilization against horizontal displacements and to provide centering forces to overcome centrifugal forces when. Hyperloop transportation says it will use a cheaper. When the inductracks train cars move forward, the magnets in the. Railway technology today 12 edited by kanji wako magnetic levitation maglev technologies the tokaido shinkansen began operations in 1964 and was an immediate success.

Then there is the randstad system proposed for the netherlands, along with numerous plans from eastern europe to the middle east. Federal transit may 2005 administration final report. A candidate system is the inductrack, employing permanent magnets on the. One of the notable characteristics of the inductrack maglev system is that. Along certain medium range routes, maglev can compete favorably with highspeed rail and airplanes. Japanese engineers have developed a competing version of maglev trains that use an electrodynamic suspension eds system, which is based on the repelling force of magnets. Modeling of electrodynamic suspension systems request pdf. The inductrack ii maglev employs dual halbach arrays, reducing drag losses and enhancing levitation forces. His research was stopped in 1973 because lack of money and his progress was not enough. Further savings come continuously since electrodynamic maglev designs like inductrack do not require powered feedback control systems to stabilize levitation.

Inductrack began with funding from livermores laboratory directed research and development program, and in 2003, the technology was licensed to general atomics ga in san diego for train and transit. The maglev train has a different working principle from conventional wheelrail train driving forward by frictions, as it achieves levitation through interaction between the magnets aboard and the rails and produces propulsion force electromechanically without contact with the rails 3. Zeropower control of hybrid magnetic levitation system. The ladder track is made of unpowered litz wire cables, and the. Moving a permanent magnet near a loop of wire will cause a current to flow in the wire, as english physicist michael faraday discovered in 1831. T railway technology today 12 edited by kanji wako magnetic. Since then, japans shinkansen network has expanded considerably, and its success has prompted rapid development of highspeed railways in other countries. This part of the report consists of passive magnetic levitation, halbach array and. Post inventions, today can be possible such great advances like inductrack and electromechanical batteries. The magnetic levitation train maglev project uses the concepts of electromagnetism and electrical machinery. Inductrack, a maglev system originally conceived by livermore physicist richard post, is designed to address these issues. A rocket sled launch, also known as groundbased launch assist, catapult launch assist, and skyramp launch, is a proposed method for launching space vehicles. The inductrack is slightly warm after this test run. Inductrack is a passive, failsafe electrodynamic magnetic levitation system, using only unpowered loops of wire in the track and permanent magnets arranged into halbach arrays on the vehicle to achieve magnetic levitation.

The development provides an innovative approach for low speed transportation suitable. Maglev is a system of train transportation that uses two sets of magnets, one set to repel and push the train up off the track, and another set to move the elevated train ahead, taking advantage of the lack of friction. As a new approach to magnetic levitation by permanent magnet envisioned in 1990s, the concept of inductrack has been applied to designs of various maglev systems, including rocket launchers. Introduction magnetic levitation is becoming widely applicable in magnetic bearings, highspeed ground transportation, vibration isolation, etc. Presented in this paper is a new transient model of inductrack. Jan 06, 2008 thanks to klaus halbach and richard f.

Passive magnetic levitation, which was developed by the late physicist. A magnet configuration comprising a pair of halbach arrays magnetically and structurally connected together are positioned with respect to each other so that a first component of their fields substantially cancels at a first plane between them, and a second component of their fields substantially adds at this first plane. Pdf swissmetro is a maglev project, designed for a speed up to 500 kmh in two tunnels under partial vacuum. As a new strategy for magnetic levitation, inductrack systems with halbach arrays of permanent magnets have been applied to maglev trains and intensively researched in various projects. Dec 23, 2005 the study noted, however, that the inductrack s energy usage and maintenance costs would be significantly lower than those of a conventional railway. A fast and reliable software network load balancer daniel e. The inductrack is a newer type of eds that usespermanent roomtemperature magnets. Inductrack is a completely passive magnetic levitation train system, using only unpowered loops of wire in the track and permanent magnets in halbach arrays on the train to achieve levitation. Lippmann lost in the primary election on august 6, 2019 lippmann was a 2018 nonpartisan candidate for position 9 judge of the washington supreme court.

This project is a continuation of work done by paul friend in 2004. Maglev suspension and propulsion design for the nasa hilift wind tunnel concept. Pdf this paper presents technology aspects and choices relative to. The inductrack, as its name suggests, produces levitating force by inducing electric currents in the track. A passive inducedcurrent system employing permanent magnets on the moving vehicle, the inductrack maximizes levitation forces by a combination of two elements. With this concept the launch vehicle is supported by an eastward pointing rail or maglev track that goes up the side of a mountain while an externally applied force is used to accelerate the launch vehicle to a given.

Along certain mediumrange routes usually 320 to 640 km 200 to 400 mi, maglev can compete favorably with highspeed rail and airplanes. Commercial maglev rails are few and far between as there are only 2 rails in existence today that transport people. Inductrack ii, which is the design used by the ga urban maglev system, requires half the current to achieve the same levitation force per unit area as that required when using the singlesided inductrack i configuration, without substantially increasing the weight or footprint area of the halbach arrays. Development of a halbach array magnetic levitation system. The advantages of the laminated track over the presently employed ladderlike litzcable design are the higher conductor packing fraction that can be achieved, its potentially lower fabrication cost, and the tracks longtime durability no solderjoints are required in manufacturing the track. For decades, conventional trains, a major source of land transportation, have served people around the world. A cantilevered ladder track is used, interacting with two facing halbach arrays, one above, and one below the track. The maglev project consists of two construction phases. This manual can also be used by event supervisors to construct a magnetic levitation track to be used at science olympiad tournaments. Modeling and control of a magnetic levitation system concepts emphasized. Maglev technologies general atomics ga is a pioneer in the research and development of innovative permanent magnets and linear motors to create clean, fast and efficient transportation solutions.

Utilizing the attraction of the magnetic levitation force, maglev eliminates the wobbling and shaking problems of traditional motor fans. Inductrack is a passive, failsafe magnetic levitation system, using only unpowered loops of wire in the track and permanent magnets arranged into halbach arrays on the vehicle to achieve magnetic levitation. This program is working to design an urban transportation system for the united states that will use the inductrack to levitate the trains at low speed. The magnetic levitation technology can be used as an efficient technology in. The design of halbach arrays for inductrack maglev systems. V3 department of mechanical engineering, magna college of engineering, magaral, chennai, india 1,2, 3. The inductrack maglev system creates magnetic levitation through the interaction of the inductrack and magnets. The simplicity of the inductrack should make it substantially less expensive than the present eds or ems maglev trains. Our maglev rail will feature a modified version of the inductrack maglev design as well as electromagnetic suspension design ideas. Those kinds of speeds give engineers hope that the technology will prove useful for routes that are hundreds of miles long. Maglev systems represent a promising evolution in the highspeed ground transportation, offering speeds in excess of 500 mph along with the potential for low operating costs and minimal environmental impact. The inductrack maglev train by collin zajicek on prezi. Richard post from lawrence livermore national labs llnl. Various commercial maglev train projects are in progress all over the world.

The inductrack approach to magnetic levitation unt. Richard post was the head scientist for the magnetic levitation program at. Figure 12 laminated aluminum inductrack method laminated aluminum sheets may be explored if the laminated copper does not work, or there is adequate time. Maglev derived from magnetic levitation is a system of train transportation that uses two sets of magnets, one set to repel and push the train up off the track as in levitation hence maglev, magneticlevitation, then another set to move the floating train ahead at great speed taking advantage of the lack of friction. Todays fastest maglev train can speed along at 581 mph, about the speed of a commercial airplane.

Magnetic levitation is a highly advanced technology. Inductrack demonstration model technical report osti. Maglev trains are capable of travelling at twice the speed of their fastest counterparts wheelonrail train tgv of france. This maglev model accurately reproduces the setup of magnets used in shanghais maglev system and is made up of two parts. Maintenance requirements for inductrack are lower than they are for other maglev systems. Abstract this paper presents the status of general atomics urban maglev program. Some maglev trains are capable of even greater speeds. Superconducting magnets, created by cooling electromagnets to low temperatures, can reduce power consumption and cost. Maglev trains are common in many asian and european countries, and are becoming popular in airports as well. The new technol ogy would employ arrays of permanent magnets on the undersides of the train cars, which would levitate a few centimeters above the tracks. Mary dillon researched problemsolution proposal topic. Much like a fullsized maglev system, the track and train need to be precisely. The goal of this effort is to investigate the feasibility and. Concepts developed during research on passive magnetic bearing systems at the lawrence livermore national laboratory gave rise to a new approach to magnetic levitation, the inductrack.

The scmaglev superconducting maglev, formerly called the mlu is a magnetic levitation maglev railway system developed by central japan railway company jr central and the railway technical research institute. To maximize the energy efficiency of maglev systems both the levitation means and the propulsion system must be optimized. Chassis must be light as possible, must achieve levitation of at least 2 millimeters, transition speed must. This increases efficiency, reduces maintenance costs, and increases the useful life of the system. Urban maglev technology development program utilizing the rotary track and inductrack methods 5. Inductrack physics the physics of the inductrack work with the properties of a halbach array is now discussed. Inductrack was invented by lawrence livermore national laboratory physicist richard f. The system is a cheaper, safer alternative to regular magnetic levitation, or maglev, which is currently in operation powering highspeed trains in china and europe.

On 21 april 2015, a manned sevencar l0 series scmaglev train reached a speed of 603 kmh 375 mph. It also highlighted the potential of maglev train in developing country. Inductrack, linear motor, magnetic guidance, magnetic levitation, maglev, mlx. Maglev, urban maglev, permanent magnet, halbach array, inductrack. The magnetic levitation train maglev project uses the concepts of electromagnetism and electrical machinery to levitate and propel a train along a track. A technology approach to magnetic levitation steven barker, ron matusiak buffalo state college abstract a magnetic levitation maglev project is described with two major goals in mind. Inductrack war ein experimentelles magnetschwebebahnsystem mit permanentmagneten in. The major advantage of maglev trains is speed up to 580 kmh 4, which increases the range in which rail travel is comparable to air travel. History of maglev train in the 1960s in britain eric laithwaite developed a functional maglev train. Hyperloop transportation says it will use a cheaper, safer.