Vol 1, No 1 (2015)

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Review
Technologies of high-speed transport for The North of Russia
Kiselenko A.N., Sundukov E.Y.
Abstract

The North of Russia in the short term remains not captured high-speed movement. Such situation can be rectified by application magnetic and levitation technologies, and so string trestle technologies. However, the careful ecological and economic reasoning, and also adaptation of constructive elements and technologies to North conditions has to precede use of such technologies.

For development of the railway high-speed communication it is necessary to create rings of the high-speed movement. Thus the cellular network structure which is much more effective existing treelike, taking place in the Komi Republic, the Arkhangelsk and Murmansk areas will be initially formed.

Container message of trestle type Ivdel – Indiga about 1100 km long can become possible application of magnetic and levitation technology in the north of Russia. From Ivdel the container highway can be continued in the southern direction to border with China.

At the organization of the high-speed movement it is necessary to divide passenger and cargo transport streams. If to execute passenger modules in the form of individual vehicles (four-five-seater), elements of infrastructure will be less expensive. The sizes and loading capacity of containers for high-speed transportations can be also reduced.

Developers of string transport systems actively study questions of design of transport modules of various mission, creation of low-cost transport infrastructure.

In the conditions of the North of Russia development of transport system which would combine advantages of magnetic and levitation and string transport is of interest. Stability of such system can be provided when using effect of «a magnetic potential hole».

Implementation of large transport projects of the high-speed movement in the Russian Federation can promote strengthening international cooperation and be carried out on its basis.

Transportation Systems and Technology. 2015;1(1):5-12
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Reconstruction of railway stations in connection with development of The Ust-Luga port
Sugorovskiy A.V.
Abstract

Article is devoted to reconstruction of station of Oktyabrskaya Railway in the Kingisepp region of the Leningrad region – Veymarn taking into account increase in a cargo stream at stations of Ust-Luzhsky knot.

Calculations of necessary quantity of ways at station are for this purpose executed. The executed calculations testify that it is necessary to add to the existing ways of station four new the priyomootpravochnykh of a way.

Data on a hardware of the stages adjoining station are accepted on the basis of TRA of station and technological process.

Two options of reconstruction of station are developed. Both in the first and in the second option the existing ways are extended.

In the first option parallel to the existing ways four new ways with a useful length not less than 1050 m, keep within in the same place where the cargo platform is located. For this purpose transfer of a high cargo platform 114 m long and 9 m wide will be required. At realization of this option additional allocation of land will be required.

In the second option parallel to the existing ways four new ways with a useful length not less than 1050 m, keep within in the same place where the passenger building is located. Their laying will require transfer of 2 high passenger platforms 4 and 4,5 meters wide, demolition of the outdated passenger building and construction of the new, modern passenger building, and also transfer of ways of locomotive economy. At realization of this option additional allocation of land will also be required.

Large-scale schemes of station, are executed in the graphic AutoCAD editor according to requirements to projects of railway stations and knots. Comparison of options is executed on the comparable, differing capital investments and operational costs. The cost of reconstruction of station in the current prices of 2015 makes about 500 million rubles.

Transportation Systems and Technology. 2015;1(1):13-25
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Speed urban transport for modern aglomeration
Fiodorova M.V.
Abstract

The paper highlighted the main shortcomings of the existing types of urban transport; described a new form of settlement – «conurbation», the classification of urban passenger transport; refined the concept of «fast urban transport»; the necessity of creating a new type of passenger transport in terms of strategic and socio-economic development goals and objectives of St. Petersburg; reflected the creation magnetic levitation transport, can significantly improve the transport service of the population, to reduce the time spent on the trip, take some of the load on the highway due to the shift of the population use cars for transport on a magnetic cushion, reduce pollution.

Maglev is no substitute for public transport, and only takes a niche. Maglev is appropriate where there is a contact with the dense buildings and accumulate large volumes of passenger traffic, which are not able to provide the underground. Design features maglev that covers truck bearing beams, prevents lane departure (derailment); emissions of pollutants into the atmosphere when the movement of trains are excluded; noise is 10 dB less than the rail; Vibration 8 times less than that of light rail transport. Maglev has the highest rate of all public land transport.

Transportation Systems and Technology. 2015;1(1):26-36
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Original papers
Development and testing prototype of HTS module for the system of magnetic levitation of vehicle
Demina A.A., Safonov A.V., Kovalchuk O.A., Zapretilina E.R., Rodin I.Y., Andreev E.N.
Abstract

In recent years increasingly discusses the prospects of application of high-temperature superconductors (HTS) as the winding current-carrying elements of magnetic systems for various purposes. It seems particularly attractive possibility of such systems at liquid nitrogen temperature.

The article describes the prototype of module of the magnetic system which is made on the basis of high-temperature superconducting tapes, designed for the installation and testing on a working model of a static levitation. In the working model levitation of the platform carried by the interaction of the magnetic field of the assembly of permanent magnets mounted on the platform with a field similar to assemblies located in the track structure. Compact HTS module replaces the two assemblies of permanent magnets mounted on the platform. Each block of the module represents HTS racetrack coil with current inputs, power structure, positioning system and bracing which is placed in a cryostat, providing at minimum wall thickness of the required mechanical strength and thermal insulation at liquid nitrogen temperature.

The prototype of unified superconducting module successfully passed preliminary tests.

Transportation Systems and Technology. 2015;1(1):37-48
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Design and assessment of strength magneto-levitation bogie
Beyn D.G., Ispolova E.A., Zhitkov Y.B., Sakharov R.A.
Abstract

The article presents the results of the prototype magneto-levitation bogie for the transport of containers using the technology of magneto-dynamic levitation «Inductrack».

The main elements of the prototype bogie are:

– supporting welded steel frame, which is attached to the container stops, blocks, magnets, support and guide wheels;

– the magnets are combined into blocks according to the scheme «an Array of Halbach»;

– shunting wheel required for pre-acceleration of the bogie (with levitation wheels not touching the track structure);

– guide wheels, which serve for centering the bogie on the road when driving on a plot of acceleration.

Cart design was developed taking into account the possibility of placing massive superconductors instead of permanent magnets.

Carts are designed to carry containers of various types, it does not require additional devices for connecting the carriages together.

To assess the strength of the construction was taken following calculation modes:

– the moving bogie, when you turn on linear synchronous motor, a trolley supported by shunting wheel and operate the inertial load;

– braking when the bogie is in magneto-levitation flight support with the maneuvering of the wheel is missing, there are inertial load;

– support bogie magnets on when the bogie is in magneto-levitation flight;

– support the trolley on the shunting wheel, the linear synchronous motor is turned off.

The calculation was carried out by finite element method using the design package «Ansys Workbench».

Transportation Systems and Technology. 2015;1(1):49-58
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Equation of motion magnetic levitation rolling stock
Pashkov N.N.
Abstract

This article deals with the problem of control the trajectory of the crew magnetic levitation relative trajectory of the software regarding the track structure of the perturbation of the gravitational and magnetic fields levitation systems, lateral stabilization and traction. The crew is presented as a system of rigid bodies, whose motion is subject to gravitational and electromagnetic forces. The spatial displacement with limited powers of levitation and lateral stabilization regarding a discrete track structure are selected by drawing up the estimated equations of the dynamics of the crew as inertial coordinates of the centers of mass of solids. The coordinates of any point on the carriage in a local coordinate system are converted in the coordinate system associated with the center of mass of the crew to bring the point of application of external force to the center of mass of the crew. A general model of the dynamics of the crew is based on the equation of Lagrange-Maxwell which binds to the active mass of the external forces of gravity that govern the electromagnetic force, the force of inertia and friction. The kinetic energy of the mechanical system is defined by the velocity projections on the axis of the fixed coordinate system as a quadratic form. The crew simulated magneto elastic coupling with the track structure changing the potential energy of magnetic levitation and lateral stabilization at the deformation of the object or the displacement and rotation of the center of mass of the crew in three-dimensional space. The inverse problem of dynamics is solved to determine the control forces for a given trajectory of the crew magnetic levitation. The equations of motion the crew on a magnetic cushion are linearized regarding increments relative coordinates of the centers of mass of the crew vector and presented in the form of equations of the phase space of states.

Transportation Systems and Technology. 2015;1(1):59-69
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Levitation gap in suspension of HTSC under the permanent magnet
Volkov M.P., Proscurin A.A.
Abstract

Аn experimental study of HTSC disc levitation above the permanent NdFeB magnet and suspension of HTSC disc under the HTS magnet. It was shown that when the suspension under the magnet is observed at significantly greater distance (clearance) between the magnet and the disc. Consideration of the magnetization of the HTSC disc in the levitation and suspension on the basis of the critical state model enabled us to explain the observed differences in the clearance for these two variants of contactless suspension.

Transportation Systems and Technology. 2015;1(1):70-76
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Linear electric motor with pm excitation for a freight magnetolevitation platform
Adalev A.S., Kuchinskii V.G.
Abstract

The paper presents the design of a traction electric drive based on a linear synchronous motor with permanent magnets (PM) excitation. The electric drive is a part of the demonstration mock-up and is intended for the linear movement of a freight platform that is suspended in the air by means of the magnetic field. The drive performs a smooth movement of the platform with a required speed, platform stop, and changing of the direction of the movement. The motor inductor with permanent magnets is fixed on the platform whereas the motor stator is placed on the ground being supplied with power through а semiconductor converter. The stator consists of the independent modules that are sequentially connected to the converter as the inductor moves. Commutation of the modules and commutation the windings inside the active module is performed by the signals from some optical sensors attached to the inductor. Modular design of the motor stator and sectional feeding of its windings from the same converter allow to create a levitation mock-up with an arbitrary length of the motion path. At that all the technical solutions adopted in the drive design are directed to reducing of the drive production cost.

Transportation Systems and Technology. 2015;1(1):77-90
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Synthesis and research of superhydrophobic, аnti-icing hybrid cоatins
Shilova O.A., Tsvetkova I.N., Krasil'nikova L.N., Ladilina E.Y., Lyubova T.S., Kruchinina I.Y.
Abstract

An approach to the formation of anti-icing nanostructured coatings for use on metal to protect against freezing and corrosion of various metal structures was presented in this work. A method for preparing superhydrophobic coatings using the sol-gel compositions with fluorinated dialkoxysilanes and hydrophobized filler was developed. Synthesized methyltriethoxysilane sols were used for film forming compositions by mixing with the fluorine-containing powder and hydrophobizing aerosil. The hydrophobicity and adhesion properties were investigate by physical and chemical methods. The method of digital image processing sedentary drops on the surface was used to study the dynamics of change in contact angles. The adhesion of the coating to the substrate was evaluated by method of a lattice cut and made up 1 point. Determination of physical properties by measuring the contact angles and roll-off of water drops from the surface showed that the coatings have a high contact angle (over 150 °), and the sliding angle less than 10 degrees. That could confirm the superhydrophobicity and assume anti-freezing properties. It was revealed that aerosil has a significant impact to hydrophobic and superhydrophobic properties.

Transportation Systems and Technology. 2015;1(1):91-98
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Simulation of emergency collision of a magnetic levitation train with an obstacle
Ryazanov E.M., Pavlyukov A.E.
Abstract

In the last decades much attention has been focused on improving the passive safety of automobile, aviation, railway and shipbuilding vehicles by means of development of special energy-absorbing devices (EAD). The operation principle of such devices is to absorb the kinetic energy of the collision with the obstacle by means of the controlled irreversible deformation of its own design [1]. The article proposes to implement these devices and passive safety systems to assess their effectiveness. The solution of this issue was carried out by the authors' methods of numerical simulation of emergency collision of a rolling stock with an obstacle [2–4]. The article demonstrates the simulated emergency crash system of the passenger magnetic levitation train. It consists of a front and undercar crash-modules. The first is mounted on the end part of the head car of the train to absorb the collision energy with a large obstacle in case of an accident. The second is designed to reduce the consequences of collisions with obstacles of relatively small sizes, able to break the floor or damage undercar equipment at high speed. Various designs and materials used for manufacturing of EAD were theoretically investigated using the developed model of emergency collision. In the result the assessment of work effectiveness of the designed emergency crash-system in accordance with the existing regulatory requirements for traffic safety was carried out.

Transportation Systems and Technology. 2015;1(1):99-111
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Questions hardware bassboost magneto-levitation vehicles
Dianov V.N., Gevondyan T.A.
Abstract

One of the hallmarks of the magneto-levitation transport are a big, life cycle and safety. The concept of security and life-cycle are important parameters: the probability of failure, failure rate, reliability, time to return to a safe status. Improving the reliability and security of modern rolling stock is possible through the improvement of railway automatics and telemechanics. Operated system monitoring and diagnostics of rolling stock consisting of a complex stationary, airborne and mobile systems, solve the problems of the prevention of failures and accelerated deterioration, maintain the technical characteristics of the equipment at a predetermined level and providing an assigned resource. The transition to a more technically complex objects – magneto-levitation vehicles – requires additional development funds to improve reliability, including the detection and diagnosis of failure States and conditions of intermittent failures – failures. The reliability of the control and diagnostic systems have many times exceed the reliability of the rolling equipment and perform the following main functions:

– settings of sensors and measurement channels the parameters for a specific object;

– identification of the elements of the object, registration of extreme deviations, their localization and signaling of limit deviations of parameters;

– formation of a database state changes of elements, determination of residual life of components and of the facility as a whole.

Transportation Systems and Technology. 2015;1(1):112-127
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