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2 edition of Comparison of two HSGT magnetic suspension systems (attraction) found in the catalog.

Comparison of two HSGT magnetic suspension systems (attraction)

Robert H. Borcherts

Comparison of two HSGT magnetic suspension systems (attraction)

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Published by Dept. of Transportation, Federal Railroad Administration, Office of Research and Development, for sale by the National Technical Information Service in Washington, Springfield, Va .
Written in English

  • High speed ground transportation.,
  • Magnetic suspension.

  • Edition Notes

    StatementRobert H. Borcherts.
    SeriesReport - Federal Railroad Administration ; no. FRA-ORD&D-75-75, Report (National Institute of Standards and Technology (U.S.)) -- no. FRA-ORD&D-75-75.
    ContributionsUnited States. Federal Railroad Administration. Office of Research, Development, and Demonstrations.
    The Physical Object
    Pagination13, [5] p. :
    Number of Pages13
    ID Numbers
    Open LibraryOL17646839M

    Thrust Characteristics of a Double-Sided HTSLSM with an HTS Magnetic Suspension System. Jianxun Jin1, Luhai Zheng1, Wei Xu2, Youguang Guo 2, and Jianguo Zhu2. 1School of Automation, University of Electronic Science and Technology of China, Chengdu , China. 2. Faculty of Engineering and Information echnology, University of Technology SydneyT, . This paper proposes an improvement method of zero suspension force performance using a special permanent magnet for a magnetic suspension device. The zero suspension force of a permanent magnetic suspension device is indispensable for floating off when the suspended object is stuck on accidentally. Generally, the magnetic suspension system using permanent Cited by: 1. A Comparison of the Ladder and Full-Order Magnetic Models Kusumal Changtong Robert W. Erickson Dragan Maksimovic Colorado Power Electronics Center University of Colorado Boulder, Colorado [email protected] ABSTRACT—Predictions of the reduced-order ladder model and the full-order extended cantilever model are compared theFile Size: KB.   IDEAL SUSPENSION: IDEAL SUSPENSION R apidly and independently absorb road shocks S lowly return to its normal position while maintaining optimal tire-to-road contact. Two main characteristics- A] Passanger comfort B] Vehicle control Transportaion Research Board reported 51% of accidents are caused by roll over.

    This system, also known as the electromagnetic suspension (EMS) system, is suitable for low- and high-speed passenger-carrying vehicles and a wide range of magnetic bearings. The electromagnetic suspension system is inherently nonlinear and unstable, requiring an active feedback to maintain an upward lift force equal to the weight of the.

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Comparison of two HSGT magnetic suspension systems (attraction) by Robert H. Borcherts Download PDF EPUB FB2

Get this from a library. Comparison of two HSGT magnetic suspension systems (attraction). [Robert H Borcherts; Ford Motor Company.

Scientific Research Staff.]. power control method on two kinds of magnetic suspension systems with permanent magnets and linear actuators.

They examined the zero power control method on a hanging type magnetic suspension system which can be applied as a noncontact conveyance vehicle. In chapter 2, the hanging type suspension principle was explained, and anFile Size: KB.

The theoretical comparison results of dynamic properties between electromagnetic and hybrid suspension systems obtained at the non-linear Simulink models are given. It has been discovered that, the integration of the permanent magnet into the magnetic circuit gives the system essentially non.

This paper presents a half bogie model of magnetic levitation systems, which can capture the mechanical coupling between two suspension points.

Based on. Electromagnetic suspension (EMS) is the magnetic levitation of an object achieved by constantly altering the strength of a magnetic field produced by electromagnets using a feedback most cases the levitation effect is mostly due to permanent magnets as they don't have any power dissipation, with electromagnets only used to stabilize the effect.

a spring-suspension vehicle; each wheel had two durable - steel leaf springs on each side and the body of the carriage was fixed directly to the springs attached to the axles.

Suspension has become one of the key elements of modern motorcycles as safety and comfort are influenced by it. Suspension systems have direct responsibility of safetyFile Size: KB. The design of the electromagnetic suspension system can be done with two types: 1) By using a Hydraulic Damper or.

2) By using Linear Motor as a Damper. The concept is to design the magnetic suspension system on the front shock absorber of the motor bike to have a better performance with ease of handling and comfort ride. Magnetic suspension is described as the fastest reacting suspension in the world as sensors monitor the road surface up to times per second and an ECU can make variations within a few milliseconds resulting in the possibility of multiple damping variations being made in a second.

Magnetic ride control uses a system known as magneto rheological technology for suspension. What does the speed sensitive suspension do. Wiki User It lowers the vehicle height (at high speeds) for better. performance and handling. Related Questions.

Elon. Why didn't you think of this!. (maybe you did). The vertical forces involved in a suspension system are pretty large, with high inertial forces at play. I wonder if anybody has ever tried building an electromagnetic suspension system, where powerful magnets interact with coils and currents to smooth out the violent wheel translations, instead of a shock absorber or.

Yacoub Dali, Marc Tupin, Philippe Bossis, Michèle Pijolat, Françoise Valdivieso. Application of a magnetic suspension balance to the oxidation study of the zirconium based alloys under high pres-surewater vapour. Journal of Thermal Analysis and Calorimetry, Springer Verlag,96 (1), pp ￿/sx￿.

￿hal Cited by: 1. applied this approach to magnetic suspension systems [], especially in cases where magnetic suspension systems are required to operate under large variation of the air gap. High performance control of a magnetic suspension system of attractive type in the presence of parameter uncertainties is of particular Size: KB.

A brief review of electronic filters and their characteristics is used to provide insight on the difficulties of designing a control algorithm for negotiating hilly and rough terrain at higher speeds.

Two controller designs are presented. One was designed by pole placement and causes the suspension response to approximate a Type 1 Chebychev filter. The design of the electromagnetic suspension system can be done with two types: 1) By using a Hydraulic Damper or 2) By using Linear Motor as a Damper.

The concept is to design the magnetic suspension system on the front shock absorber of the motor bike to have a better performance with ease of handling and comfort ride.

the model motion in the magnetic suspension facil ity it is first necessary to understand the "quasi-six-degree-of-freedom"nature of the motion. By "quasi-six-degree-of-freedom"we mean the model is free to both rotate and translate at frequencies above some cutoff imposed by the SMSB co~trol' system.

The feedback controller is designed to. Two modifications of the magnetic suspension balance are described for determining densities and partial specific volumes. Both modifications are capable of high precision. An open-loop magnetic suspension system is intrinsically unstable and nonlinear.

They can be constructed as benchmark experimental systems for educational purpose and for testing new control design techniques. We are currently constructing a magnetic suspension system at Umass Lowell. Publications. This book is an average book - nothing great about it. There are over pages on magnetic field diffusion - not sure why it is allocated so much space.

On the other hand, the book barely covers magnetostatics (quite surprising for a book on magnetic fields), and the problems/examples discussed in the book are hardly useful in real life Cited by: Magnetic suspension and balance systems (MSBS) have been used to support models for aerodynamic tests in wind tunnel facilities for over 25 years.

The primary advantage of a MSBSis the complete elimination of support interference effects which can result from the use of mechanical model support systems such as stings and struts.

Electromagnetic Suspension System Prepared by Bilal Hasan Syed 6th Semester Mechanical Engg. Jamia Millia Islamia Mahindra Igniters Solution 4. Classification of suspension systems Suspension system Active Hydraulic Pneumatic Electro- magnetic Passive F/OEngineeringandTechnology JamiaMilliaIslamia 4 5.

The suspension travel of the controlled system is limited to the maximum value that the BMW achieved with its spring and damper settings over a given road. Furthermore, the maximum RMS actuator force of N results from thermal limits.

Two control approaches are considered, linear quadratic optimal control and robust control. Design and Implementation of Control System For Magnetic Suspension Device by Omar Carrasquillo MASSACHUSETTS INSTITUTE OF TECINOLOGY OCT20 Design and Implementation of Control System For Magnetic Suspension Device by In magnetic suspension systems, the nonlinearity emerges from the relationship between force, current, and air gap.

Two new production sensors, which measure magnetic susceptibility as a function of frequency, have been tested on paramagnetic salts and soil samples from sites that exhibit magnetic viscosity. The purpose was to document their response for comparison with other popular sensors such as the Bartington MS2 system or the Quantum Designs : Ryan E.

North. Noise From High Speed MAGLEV Transportation Systems p. Aesthetics in High Speed Rail Projects p. High Speed Rail vs. MAGLEV in the Quebec City - Windsor Corridor: A Comparison of Energy Impacts and Emissions p. A Combined Noise Model for HSGT Traffic p. The Effects of HSGT on Urban Decentralization p.

trollers, and made an experimental comparison between feedback linearizing control and classical state feedback control. Ref.[4] provides a gain scheduled control of magnetic suspension system.

Shen [5] compared the performance of the H controller, the sliding mode con-troller and the PID controller. All of the above control-Cited by: The principal components of the magnetic suspension sys-tem are shown in Fig.

The position of the ball is sensed by the optical system and the feedback signal is used to control the position of the steel ball. The inductance of the coil varies with ball position as illustrated in Fig.

The essential features are: is the. maximum stress obtained after analyzing the electromagnetic suspension is N/mm.2 Keywords: active suspension, faraday’s law, rheostat and ride characteristics. INTRODUCTION Suspension is the term given to the system of springs, shock absorbers and linkages that connects a vehicle to its wheels.

Suspension systems serve a dualFile Size: KB. Magnetic suspension means that an object is suspended by magnetic attraction and/or repulsion forces to achieve non-contact support and low-friction in motion.

The magnetic suspension as a branch in mechatronics technology, involves disciplines in electromagnetism, power electronics, signal processing, control engineering, statics and by: 8.

Magnetic suspension, Linear quadratic regulator, Radial basis function, Neural controller. NTRODUCTION. Magnetic suspension systems is becoming increasingly popular for high–speed ground transportation systems, magnetic bearings, vibration isolation systems and fast-tool servo systems[1]-[4].

Due to the features of the open-loop. to wide area stabilization of magnetic suspension systems. It is well known that the magnetic suspension systems have strong nonlinearity. In order to realize wide area stabilization of magnetic suspension systems, we design the passivity-based feedback controller considering a nonlinear dynamics of the magnetic suspension systems and a leakage.

27 their performance is inferior to fully active systems, they are better than that of passive systems (Nakano et al., ). Suda et al., () used two linear DC motors to build a self powered active vibration control system.

As illustrated in Figureit File Size: KB. NPSAT1 Magnetic Attitude Control System Algorithm Verification, Validation, and Air-Bearing Tests [Eric W.

Herbert] on *FREE* shipping on qualifying offers. This is a NAVAL POSTGRADUATE SCHOOL MONTEREY CA report procured by the Pentagon and made available for public release.

It has been reproduced in the best form available to the Pentagon. Hybrid suspension system with permanent magnet and electromagnet consumes little power consumption and can realize larger suspension gap.

But realizing stable suspension of hybrid magnet is a tricky problem in the suspension control sphere. Considering from this point, we take magnetic flux signal as a state variable and put this signal back to suspension control by: 6.

while suspension having high damping rate is good for better handling that results in small suspension travel.

These two contradictory needs the requirement of suspension with varying damping rate. This paper describes the design and simulation of a magnetic suspension system for the quarter car.

Here in the designedCited by: 1. Magnetic Suspension Magnetic force can be a permanent force such as weight. In this demonstration you will have a small paper clips or nail and the attached string suspended in the air using the magnetic force.

Magnet Suspension Apparatus. A magnet and a chain are suspended horizontally between two posts. The magnetic force is. These two equations give the mathematical model of the DC motor system with input va(t) and output w(t).

Another interesting electromechanical system is a magnetic-ball suspension system shown in Figure The coil at the top, after being fed with current, produces a magnetic Size: KB.

timized magnetic suspension. PRINCIPLE We consider a magnetic suspension that is formed from concentric magnet rings of rectangular cross-section.

There is no limit to the number of such mag-nets that form a suspension unit. Figure 1 shows two types of magnet rings under consideration, magne-tized in axial or radial direction as indicated by.

KEYWORDS Energy recovery, vehicle suspension, electromagnetic, design, static magnetic analysis, magnetic field etc. INTRODUCTION The vehicle manufacturers have made costly strides to improve fuel economy. Car designers also spend great deal of effort to reduce wind drag so as to improve fuel economy through streamlined low dragFile Size: KB.

A Development of Dynamic Wind Tunnel Testing Technique with a Magnetic Suspension and Balance System -Measurements of Dynamic Stability Derivatives of a Non-axisymmetric Model- The 5th Boeing Higher Education Program November 18th Background.

m – MSBS at IFS. No support interference Balance system to evaluate aerodynamic forcesFile Size: KB. Magnetic suspension control systems for MBB high speed train For the single-magnet case all of these methods have been investigated and all lead to similar results although each has its special problems when applied to higher order systems which are Cited by:.

between two tiny magnetic surfaces on outer and inner magnets in Z-X plane. the nominal position O (0, 0, 0) to O (x,y,z) due to a translation e = x ˆ i + y ˆj+ z ˆk in 3D plane XYZ, where ˆ i, ˆj and ˆk are the unit vectors along X, Y and Z axes, Size: KB.A magnetic suspension wind tunnel supports a model inside wind tunnel with magnetic force, allowing users to avoid the interference that the supporting devices in conventional wind tunnel testing cause.

Therefore, magnetic suspension makes it possible to measure drag coefficients and wake flows for models of various configurations under ideal conditions.NdFeB based magnetic gear which exhibits about Nm and 62 Nm.

Meanwhile, the steady torques developed at the outer rotor and inner rotor of the ferrite based magnetic gear are about Nm and Nm respectively, which are almost 12 times lower than the torques transmitted by the SmCo based magnetic gear which shows about Nm and 53 Nm.