Relevant bibliographies by topics / Bogies

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Bogies'

Author: Grafiati
Published: 4 June 2021
Last updated: 19 February 2023

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Journal articles on the topic "Bogies"

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Simson, S. A., and C. Cole. "Simulation of traction and curving for passive steering hauling locomotives." Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit 222, no. 2 (March 1, 2008): 117–27. http://dx.doi.org/10.1243/09544097jrrt129.

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In a heavy haul train operations the ruling grades that set the tractive power requirements for train consists are often associated with tight curvatures. Past studies of passive or active bogie steering developments have been mostly directed towards high-speed rail applications or light rail and commuter rail applications and hence studies have focused on two axle bogies. Linked passive steering three axle locomotive bogies such as produced by General Motors Electric Motor Division for the SD70 class locomotive are in widespread use however, there are few publications on traction and curving, and few papers on linked passive steering bogies. This paper presents a simulation study three axle bogie locomotives on various curve radii with traction and variable rail friction conditions. Curving performance is assessed showing body linked radial bogies to have considerable advantages over axle linked bogies that are significantly better than yaw relaxation bogies at improving steering under traction. As traction adhesion approaches the rail friction coefficient steering performance of all bogies without forced steering deteriorates to the same levels as a rigid bogie.
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Yan, Shi, and Weihua Ma. "A dynamics study of asymmetric forced-steering bogies." Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit 232, no. 3 (March 1, 2017): 774–82. http://dx.doi.org/10.1177/0954409717693127.

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In this paper, the design concept of a new type of asymmetric forced-steering bogie has been proposed. This bogie is supposed to produce a better curving performance than the self-steering bogies and is well suited for mounting on locomotives that have limited bottom space. Schemes A and B, the only feasible schemes for vehicles with two bogies, were adopted and compared with the self-steering bogies. SIMPACK,the dynamics simulation software, was used to establish the dynamics models of the locomotives. The lead wheel angle of attack, lead wheel lateral force, lead wheel wear power, and the total vehicle wear power were compared and analyzed when the three different bogies negotiate the curves. The results showed that the performance of the locomotives is closely related to the layout of the front and rear asymmetric forced-steering bogies; in scheme A, where the front and rear bogies are antisymmetrically placed, curve negotiation performance was excellent and notably superior to the self-steering bogies – especially on curves that have small and medium radius. Under the traction condition, the total vehicle wear power in scheme A can be reduced by up to 24.6% compared to the locomotives of the self-steering bogies. An experiment on an S-shaped curve has proved that the angle of attack and total vehicle wear power of all the three schemes retained the symmetrical dynamics performance.
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Savoskin, AN, AA Akishin, and D. Yurchenko. "Dynamics and optimization of a new double-axle flexible bogie for high-speed trains." Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit 232, no. 5 (October 25, 2017): 1549–58. http://dx.doi.org/10.1177/0954409717737879.

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This paper is focused on the discussion of a new double-axle flexible bogie for high-speed trains. The main feature of the flexible bogie is that it consists of two sub-bogies connected with diagonal links. Moreover, an elastic connection between the carriage and both wheelsets is introduced. These features, which help to increase the flexibility of the bogie while passing tracks with a low radius of curvature, are numerically studied in this paper. The results demonstrate the huge potential of the bogie and its ability to travel without significant oscillations at a speed of 432 km/h. Numerical optimization of the bogie’s parameters is performed in order to maximize ride comfort.
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Liu, Mingyang, Jiabin Wang, Huifen Zhu, Sinisa Krajnovic, and Guangjun Gao. "A numerical study of snow accumulation on the bogies of high-speed trains based on coupling improved delayed detached eddy simulation and discrete phase model." Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit 233, no. 7 (October 23, 2018): 715–30. http://dx.doi.org/10.1177/0954409718805817.

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A numerical simulation method based on the improved delayed detached eddy simulation coupled with a discrete phase model is used to study the influence of the snow on the performance of bogies of a high-speed train running in snowy weather. The snow particle trajectories, mass of snow packing on the bogie, and thickness of snow accumulation have been analyzed to investigate the flow mechanisms of snow accumulation on different parts of the bogies. The results show that the snow accumulation on the first bogie of the head vehicle is almost the same as that of the second bogie, but the total accumulated snow on the top side of the second bogie is more than 74% higher than that of the first bogie. Among all the components of the bogies, the motors were found to be strongly influenced by the snow accumulation. The underlying flow mechanisms responsible for the snow accumulations are discussed.
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Shi, Yan, Junxiong Hu, and Weihua Ma. "Study on the Characteristics of Traction Forces Difference Asymmetric Steering Bogies." Shock and Vibration 2016 (2016): 1–10. http://dx.doi.org/10.1155/2016/7230326.

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This article comes up with a new concept of applying the difference between traction forces on front and rear wheelsets to guiding control, as well as the design of a new type of structurally simple asymmetrical radial bogies, which lead to the proposition of traction forces difference-steering asymmetric radial bogies. The traction forces difference-steering asymmetric radial bogies are referred to as TFDA-bogies, in which the difference of longitudinal creep forces between front and rear wheels produces radial steering of both wheelsets. The concept of traction difference is incorporated into guiding control and bogie structure is also simplified in the form of asymmetrical radial bogies. Angle sensors are mounted to facilitate the change of electric currents of the front and rear traction motors to control the guiding mechanism so that wheelsets can adopt the radial position. With SIMPACK, the multibody dynamics analysis software, three whole vehicle models of TFDA-bogies, radial bogies, and conventional bogies are set up and comparative analyses are made on the lead wheel angle of attack, lead wheel lateral force, lead wheel friction power, and total vehicle friction power under idle running condition and traction condition, respectively. Results show that TFDA-bogies are radial bogies with simplified structure.
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Liu, Jia, and Xuesong Jin. "Research on the Vibration Insulation of High-Speed Train Bogies in Mid and High Frequency." Shock and Vibration 2018 (2018): 1–13. http://dx.doi.org/10.1155/2018/6759105.

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According to a large amount of the test data, the mid and high frequency vibrations of high-speed bogies are very notable, especially in the 565~616 Hz range, which are just the passing frequencies corresponding to the 22nd to 24th polygonal wear of the wheel. In order to investigate the main cause of wheel higher-order polygon formation, a 3D flexible model of a Chinese high-speed train bogie is developed using the explicit finite element method. The results show that the couple vibration of bogie and wheelset may lead to the high-order wears of wheel. In order to reduce the coupled resonance of the wheelset and the bogie frame, the effects of the stiffness and damping of the primary suspensions, wheelset axle radius, and bogie frame strength on the vibration transmissibility are discussed carefully. The numerical results show that the resonance peaks in high frequency range can be reduced by reducing the stiffness of axle box rotary arm joint, reducing the wheelset axle radius or strengthening the bogie frame location. The related results may provide a reference for structure improvement of the existing bogies and structure design of the new high-speed bogies.
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Sinicyn, Vladimir, and Vladimir Kobishchanov. "BRAKING SYSTEM FOR BOGIE SUCCESSIVE BRAKING OF FREIGHT CARS." Bulletin of Bryansk state technical university 2020, no. 3 (March 5, 2020): 21–28. http://dx.doi.org/10.30987/1999-8775-2020-3-21-28.

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Brake leverages with the location of brake cylinders on bogies have a number of advantages as compared with common circuits. Domestic braking systems are presented mainly by design improvements and inventions. In this connection the development of the prototype of such a system for domestic standard bogies corresponding to the requirements and conditions of Russian railways is urgent. At that the application of domestic brake devices in such systems is preferable. The aim of this work is a choice of the optimum design for a unified leverage for two-axial bogies of type 2 and 3 (RSS 9246-2013) with the location of cylinders 670V on a bogie, and also a development of the circuit for its adjustment while operation. On the basis of the regulations for a standard computation of a brake there is chosen an optimum circuit of the brake leverage. With the aid of 3D thoroughly developed model of a brake system located directly on a bogie taking into account a design outline of bogie elements, the analysis of bogie units geometry is carried out and all intermediate leverage, separators and brake beams positions are defined which allowed obtaining the sufficiently accurate values of assembly dimensions at different wear stages of a wheel tread and a brake shoe. There is chosen an optimum brake system for two-axial bogies of type 2 and type 3 (RSS 9246-2013) with the location of cylinders 670V on a bogie. The regulating circuits and a table of assembly dimensions of the brake system during operation for a brake shoe 60±4mm thick are developed. An aggregate stock and screw travel of a brake cylinder regulator during operation without taking into account elastic deformation of a system is chosen. The considered leverage system design is offered as a prototype for the brake system design for freight cars.
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Fomin, Oleksij, Alyona Lovska, Dmytro Ivanchenko, Sergii Zinchenko, and Václav Píštěk. "STUDY OF LOADING OF THE LOAD-BEARING STRUCTURE OF HOPPER WAGONS ON Y25 BOGIES." EUREKA: Physics and Engineering, no. 2 (March 29, 2021): 32–41. http://dx.doi.org/10.21303/2461-4262.2021.001686.

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To increase the efficiency of using railway transport, the possibility of using new designs of bogies, for example, Y25 under "wide gauge" wagons was considered. In order to substantiate the proposed solution, mathematical modeling of the dynamic loading of the hopper wagon Y25 bogies was carried out. A hopper wagon for the transportation of pellets and hot sinter model 20-9749 built by the State Enterprise "Ukrspetsvagon" (Ukraine) was chosen as a prototype. The simulation results showed that the use of Y25 bogies for hopper wagons allows to reduce the acceleration of its load-bearing structure, in comparison with the use of conventional 18100 bogies, by 36 %. Other performance indicators are also significantly improved. The use of Y25 bogies for hopper wagons with actual parameters allows to reduce the acceleration of its load-bearing structure, in comparison with the use of conventional 18100 bogies, by 28 %. The determination of the main indicators of the strength of the bearing structure of the hopper wagon Y25 bogie was carried out. The calculation was carried out in the SolidWorks Simulation software package (CosmosWorks), (France), which implements the finite element method. The calculations showed that the maximum equivalent stresses in the load-bearing structure of a hopper wagon with nominal parameters are 17 % lower than the stress acting in the load-bearing structure of a wagon on bogies 18–100 V of the load-bearing structure of a hopper wagon with actual parameters, the maximum equivalent stresses are 12 % lower per voltage in the load-bearing structure on bogies 18100. The conducted research will help to reduce the load on the load-bearing structures of hopper wagons in operation, improve the dynamics and strength indicators, as well as their service life
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Anishсhenko, O., V. Kukhar, A. Pryisyazhnyi, and I. Takhtamysh. "Analysis of roller designs for sintering and firing machines." Problems of tribology 97, no. 3 (September 28, 2020): 32–38. http://dx.doi.org/10.31891/2079-1372-2020-97-3-32-38.

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The article analyzes the known constructions of roller units of carts for the manufacture of agglomerate and pellets on conveyor lines. The article points out the advantages and disadvantages of roller designs, the lack of standard technical solutions for the design of roller assemblies, as well as reliable methods for calculating their parts for strength and durability. To increase the life of the rollers, the authors, after successful industrial tests, offer innovative technical solutions: seals in the form of stuffing boxes made of expanded graphite fibers reinforced with steel thread; bearing antifriction filler made from polytetrafluoroethylene, carbon fiber and graphite. The article shows that due to axial loads during the operation of the bogies, it is impractical to use ball bearings in the ball, they should be replaced with roller bearings. The authors propose an approximate method for calculating the durability of bearings, which additionally takes into account the elastic deformation of the material of the bogies during their thermal expansion and the gaps in the nodes of the bogies. The authors use the calculation of experimental results on the size of the gaps in the nodes of the bogies, the curvature of the body of the heated bogies on the conveyor line and their movement on three rollers instead of four, take into account the change in the coefficient of linear expansion of the material of the bogie depending on the increase in the heating temperature of the case.
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Tanaka, T., K. Iida, M. Suzuki, T. Iida, N. Watanabe, and T. Miyamoto. "Evaluation of rotational resistance of bogies." Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit 231, no. 5 (September 10, 2016): 535–45. http://dx.doi.org/10.1177/0954409716668209.

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To prevent derailment such as flange-climbing derailment, precise understanding of the vehicle dynamics is important. In this study, the authors have developed a bogie rotational resistance test machine which has many innovative functions to understand the characteristics of railway bogies. The test machine can measure the rotational resistance of a bogie connected to a carbody. By using this machine, some distinctive characteristics of the rotational resistance have been clarified. As a result, a modified simulation model was constructed based on the test result, and it enabled a more accurate analysis of vehicle dynamics during the curve passage.
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Dissertations / Theses on the topic "Bogies"

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Grosso, Frederico Reis Mendes Vieira. "Plataforma de desmontagem e ensaio de bogies." Master's thesis, FCT - UNL, 2008. http://hdl.handle.net/10362/3611.

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Dissertação apresentada na faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa para obtenção de grau de Mestre em Engenharia Mecânica
No interesse de uma contínua melhoria de processos e equipamentos, a empresa Fertagus, Travessia do Tejo, Transportes, S.A., procura uma solução que facilite e melhore as operações de revisão para o período de manutenção dos 1.200.000 quilómetros dos bogies dos seus comboios. Um total de 144 bogies, durante um período de 2 anos, terá que ser desmontado por completo, todos os componentes revistos, novamente montados e posteriormente ensaiados para verificar se existem empenos no chassis ou assimetrias na resposta à aplicação da força. Actualmente, a desmontagem é realizada por um método manual de compressão das molas da suspensão, o qual se revela ineficaz para a cadência de operações exigida, e a empresa não possui nenhum sistema que permita efectuar o teste pós-montagem. Sendo assim, o método actual será substituído por um método mecânico. A solução proposta, Plataforma de Desmontagem e Ensaio de Bogies, está descrita nas páginas seguintes.
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Zhu, J. "Aerodynamic noise of high-speed train bogies." Thesis, University of Southampton, 2015. https://eprints.soton.ac.uk/379830/.

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For high-speed trains, aerodynamic noise becomes significant when their speeds exceed 300 km/h and can become predominant at higher speeds. Since the environmental requirements for railway operations will become tighter in the future, it is necessary to understand the aerodynamic noise generation and radiation mechanism from high-speed trains by studying the flow-induced noise characteristics to reduce such environmental impacts. The aim of this thesis is to investigate the flow behaviour and the corresponding aeroacoustic mechanisms from high-speed trains, especially around the bogie regions. Since the prediction of the flow-induced noise in an industrial context is difficult to achieve, this study focuses on scale models with increasing complexity. The aerodynamic and aeroacoustic behaviour of the flow past an isolated wheelset, two tandem wheelsets, a simplified bogie and the bogie inside the cavity with and without the fairing as well as considering the influence of the ground are investigated at a scale 1:10. A two-stage hybrid method is used consisting of computational fluid dynamics and acoustic analogy. The near-field unsteady flow is obtained by solving the Navier-Stokes equations numerically through the delayed detached-eddy simulation and the source data are applied to predict the far-field noise signals using the Ffowcs Williams-Hawkings acoustic analogy. All simulations were run with fully structured meshes generated according to the guidelines based on a grid independence study on a circular cylinder case. Far-field noise radiated from the scale models was measured in an open-jet anechoic wind tunnel. Good agreement is achieved between numerical simulations and experimental measurements for the dominant frequency of tonal noise and the shape of the spectra. Numerical results show that turbulent flow past the isolated wheelset is dominated by three-dimensional vortices. Vortex shedding around the axle is the main reason for the tonal noise generation with the dominant peak related to the vortex shedding frequency. The noise directivity shows a typical dipole pattern. Moreover, for both the tandem-wheelset and the simplified bogie cases, the unsteady flow developed around them is characterized by the turbulent eddies with various scales and orientations including the coherently alternating shedding vortices generated from the upstream axles. The vortices formed from the upstream geometries are convected downstream and impinge on the downstream bodies, generating a turbulent wake behind the objects. Vortex shedding and flow separation as well as interaction around the bodies are the key factors for the aerodynamic noise generation. The radiated tonal noise corresponds to the dominant frequencies of the oscillating lift and drag forces from the geometries. The directivity exhibits a distinct dipole shape for the noise radiated from the upstream wheelset whereas the noise directivity pattern from the downstream wheelset is multi-directional. Compared to the wheelsets, the noise contribution from the bogie frame is relatively small. Furthermore, when the bogie is located inside the bogie cavity, the shear layer developed from the cavity leading edge has a strong interaction with the flow separated from the upstream bogie and cavity walls. Thus a highly irregular and unsteady flow is generated inside the bogie cavity due to the considerably strong flow impingement and interaction occurring there. Unlike the isolated bogie case, noise spectra from the bogie inside the cavity are broadband and a lateral dipole pattern of noise radiation is generated. The noise prediction based on the permeable surface source is formulated and programmed using the convective Ffowcs Williams-Hawkings method. Results show that the bogie fairing is effective in reducing the noise levels in most of the frequency range by mounting a fairing in the bogie area; and for the bogie inside the bogie cavity with the ground underneath, the far-field noise level is increased due to more flow interactions around the geometries and the ground reflection effect.
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Handoko, Yunendar Aryo, and yunendar@inka web id. "INVESTIGATION OF THE DYNAMICS OF RAILWAY BOGIES SUBJECTED TO TRACTION / BRAKING TORQUE." Central Queensland University. Centre for Railway Engineering, 2006. http://library-resources.cqu.edu.au./thesis/adt-QCQU/public/adt-QCQU20070209.101959.

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The limitations of current simulation packages in addressing the true longitudinal behaviour of railway bogie dynamics during braking/traction has prompted the development of a Rail Bogie Dynamics (RBD) program in this thesis. The RBD program offers novel features for the calculation of the speed profile as a function of the brake torque as well as explicitly determining wheelset angular velocity. With such capability, the speed profile is no longer treated as an input calculated as a priori as required by most of the current simulation systems. The RBD program has been developed using a formulation that includes the wheelset pitch degree of freedom explicitly with a coordinate reference system that is fixed in space and time. The formulation has made the simulation of the bogie dynamics during braking/traction possible in a natural way using the brake/traction torque as the input and the resulting speed profile as the output without any need for working out the speed profile as a priori. Consequently, severe dynamics during braking such as the wheelset skid and the onset of wheel climb derailment can be modelled and critical parameters investigated using the RBD program. The RBD program has been validated, where possible, through a series of simulations using a commercial software package (VAMPIRE). For cases which cannot be simulated by VAMPIRE such as the wheelset skid, a novel experimental program has been designed and commissioned in the Heavy Testing Laboratory of the Central Queensland University as reported in this thesis. One of the possible applications of the RBD program in examining the effect of asymmetric brake shoe force in bogies equipped with one-side push brake shoe arrangement is illustrated in this thesis. It is believed that the model and RBD program will have significant benefit in understanding the true longitudinal behaviour of wagons in suburban passenger trains that operate under braking/ traction torques for most of their travel. Similar studies will also be useful to freight train wagon dynamics during entry and exit of speed restriction zones and tight curves.
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Luo, Robert Keqi. "Fatigue life evaluation of railway vehicle bogies using an integrated dynamic simulation." Thesis, London South Bank University, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.358233.

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Fontes, Marco António Azevedo. "Sistema de actuação hidráulica para plataforma de desmontagem e ensaio de bogies." Master's thesis, FCT - UNL, 2008. http://hdl.handle.net/10362/3612.

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Dissertação apresentada na Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa para obtenção do grau de Mestre em Engenharia Mecânica
A Fertagus – Travessias do Tejo S.A. terá em breve a necessidade de efectuar a desmontagem e ensaio em 144 bogies num intervalo de tempo que não deverá exceder os dois anos. Esta revisão acontecerá quando as composições atingirem o 1.200.000 km percorridos. Será necessário portanto que as oficinas de manutenção da empresa estejam munidas de equipamento que lhes permita responder de forma eficiente à cadência de serviço a que estarão sujeitas. O que se pretende com estas intervenções é desmontar todos os componentes internos e externos dos bogies das carruagens para que estes possam ser analisados de forma a verificar se estão em condições de funcionamento ou se terão que ser substituídos por novos componentes. Actualmente, a intervenção de desmontagem, por ser um processo inteiramente manual, é lento e pouco seguro para os operários de manutenção. Como foi referido anteriormente, dado o fluxo de serviço a que brevemente as oficinas estarão sujeitas, existe a necessidade de melhorar o método utilizado e, portanto, a solução encontrada para resolver esse problema e permitir satisfazer as necessidades da empresa assenta numa estrutura com o formato de pórtico ao qual será aplicado um sistema de dois actuadores hidráulicos. Este equipamento terá que satisfazer vários requisitos funcionais, em particular, ser capaz de exercer 350 kN nos bogies das carruagens.
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Berghuvud, Ansel. "Curving performance and nonlinear dynamic behaviour of freight cars with three-piece bogies /." Luleå, 2001. http://epubl.luth.se/1402-1544/2001/09/index.html.

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Tunna, John. "Fatigue design of railway vehicles for track induced random forces." Thesis, Open University, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.278285.

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DeLorenzo, Michael. "NUCARS Modeling of a Freight Locomotive with Steerable Trucks." Thesis, Virginia Tech, 1997. http://hdl.handle.net/10919/36664.

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The rail dynamics modeling package NUCARS has been used extensively to model freight cars. We have found that it can also be used effectively to model freight locomotives. This thesis discusses the development of a NUCARS model to represent a six-axle freight locomotive equipped with steerable trucks. This includes separating it into a set of individual bodies, representing the suspension components as inter-body connections, and validation of the computer model. This model is then used to conduct a study of the impact on tangent track stability and curving performance of varying suspension parameters. It is found that the presence of damping in the system improves hunting stability, while increasing wheel conicity is harmful to stability and varying the flexicoiling stiffness has little effect. In curving, the clearances between the axles and truck frame are very important. Limiting these clearances in the steerable truck causes it to curve similar to a conventional straight locomotive truck and increases both the track force ratios and angles of attack. Increasing the wheel conicity increases an axle's tendency to align with the track and improves the locomotive's curving performance. The lateral stiffness of the inter-axle links and inter-motor links has little effect on the curving of the locomotive.
Master of Science
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Pyrgidis, Christos. "Comportement transversal d'un véhicule ferroviaire en alignement et en courbe. Nouvelles technologies des bogies. Etude comparative." Marne-la-vallée, ENPC, 1990. http://www.theses.fr/1990ENPC9004.

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Les études scientifiques développées dans cette thèse ont permis de mettre au point des modèles mathématiques simulant en alignement et en courbe le comportement transversal d’un véhicule ferroviaire muni de bogies ayant les technologies ci-après : bogies conventionnels à essieux classiques, bogies à essieux auto-orientés, bogies à essieux à pseudoglissement contrôlé, bogies à essieux à roues indépendantes. A partir de ces modèles, on a étudié : a) la stabilité transversale du véhicule dans le cas d’une circulation à vitesse constante, sur une voir en alignement de bonne qualité située dans un plan horizontal. Le guidage des essieux est assuré uniquement par les forces de pseudoglissement et la géométrie de contact. B) le comportement semi-statistique du véhicule dans le cas d’une circulation à vitesse constante dans une courbe de rayon donné avec insuffisance de dévers. Avec ces modèles, tenant compte de plusieurs non linéarités (dispositifs anti-lacet pour l’alignement, forces de pseudoglissement pour les courbes) et corrigés au niveau des coefficients de pseudoglissement pour avoir une bonne corrélation avec les résultats expérimentaux, il est possible : a) d’optimiser les caractéristiques de construction des bogies ; b) de comparer les performances obtenues dans les technologies considérées ; c) de justifier scientifiquement les évolutions techniques en cours de développement qui devraient permettre au système guidé d’améliorer ces performances techniques. Avec ces bogies à essieux à pseudoglissement contrôlé et à roues indépendantes, on peut obtenir sans dispositifs anti-lacet et indépendamment de l’usure des roues des vitesses critiques en alignement très élevées supérieures à 500 km/h, une réduction des efforts de guidage dans les courbes de faible rayon, et un meilleur comportement des essieux dans les courbes de grand rayon (glissement retardé et déplacements transversaux réduits).
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McDonald, Christopher. "An experimental research investigation into disused flat rail wagons as bridges with applications for low volume rural roads in Australia." Thesis, Queensland University of Technology, 2011. https://eprints.qut.edu.au/45684/1/Christopher_McDonald_Thesis.pdf.

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An experimental laboratory investigation was carried out to assess the structural adequacy of a disused PHO Class Flat Bottom Rail Wagon (FRW) for a single lane low volume road bridge application as per the design provisions of the Australian Bridge Design Standard AS 5100(2004). The investigation also encompassed a review into the risk associated with the pre-existing damage in wagons incurred during their service life on rail. The main objective of the laboratory testing of the FRW was to physically measure its performance under the same applied traffic loading it would be required to resist as a road bridge deck. In order to achieve this a full width (5.2m) single lane, single span (approximately 10m), simply supported bridge would be required to be constructed and tested in a structural laboratory. However, the available clear spacing between the columns of the loading portal frame encountered within the laboratory was insufficient to accommodate the 5.2m wide bridge deck excluding clearance normally considered necessary in structural testing. Therefore, only half of the full scale bridge deck (single FRW of width 2.6m) was able to be accommodated and tested; with the continuity of the bridge deck in the lateral direction applied as boundary constraints along the full length of the FRW at six selected locations. This represents a novel approach not yet reported in the literature for bridge deck testing to the best of the knowledge of the author. The test was carried out under two loadings provided in AS 5100 (2004) – one stationary W80 wheel load and the second a moving axle load M1600. As the bridge investigated in the study is a single lane single span low volume road bridge, the risk of pre-existing damage and the expected high cycle fatigue failure potential was assessed as being minimal and hence the bridge deck was not tested structurally for fatigue/ fracture. The high axle load requirements have instead been focussed upon the investigation into the serviceability and ultimate limit state requirements. The testing regime adopted however involved extensive recording of strains and deflections at several critical locations of the FRW. Three locations of W80 point load and two locations of the M1600 Axle load were considered for the serviceability testing; the FRW was also tested under the ultimate load dictated by the M1600. The outcomes of the experimental investigation have demonstrated that the FRW is structurally adequate to resist the prescribed traffic loadings outlaid in AS 5100 (2004). As the loading was directly applied on to the FRW, the laboratory testing is assessed as being significantly conservative. The FRW bridge deck in the field would only resist the load transferred by the running platform, where, depending on the design, composite action might exist – thereby the share of the loading which needs to be resisted by the FRW would be smaller than the system tested in the lab. On this basis, a demonstration bridge is under construction at the time of writing this thesis and future research will involve field testing in order to assess its performance.
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Books on the topic "Bogies"

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Simmons, I. C. P. The equalization of multi-axle bogies fitted to commercial vehicles. Crowthorne, Berks: Transport and Road Research Laboratory, Vehicles Group, Vehicles and Environment Division, 1990.

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A dictionary of fairies: Hobgoblins, brownies, bogies and other supernatural creatures. London: Penguin, 1994.

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Pijani Bogiem. Warszawa: Wydawnictwo W. A. B., 2007.

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Society, Leicester Railway Wagon. Bogie bolsters. Leicester: L.R.W.S., 1992.

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Caesar, Julius. Byłem waszym bogiem. Łódź: Egida Westy, 1991.

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Walsch, Neale Donald. Wspólnota z Bogiem. Bydgoszcz: "Limbus", 2001.

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Starkey, Dinah. Ghosts and bogles. London: Heinemann, 1985.

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John, Wagner. The bogie man. New York: Paradox Press, 1998.

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John, Wagner. The bogie man. New York: Paradox Press, 1998.

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Jesteś Bogiem: Historia Paktofoniki. Warszawa: Wydawnictwo Krytyki Politycznej, 2012.

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Book chapters on the topic "Bogies"

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Knothe, Klaus, and Sebastian Stichel. "Lateral Eigenbehaviour and Stability of Bogies." In Rail Vehicle Dynamics, 195–224. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-45376-7_11.

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Crofts, Matthew, and Janine Hatter. "‘Rats Is Bogies I Tell You, and Bogies Is Rats’: Rats, Repression, and the Gothic Mode." In Gothic Animals, 127–40. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-34540-2_8.

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Yang, Tangwen, Yantao Sun, Xiaoqing Cheng, Honghui Dong, and Yong Qin. "Object Detection on Train Bogies Using Structured Light Scanning." In Mechatronics and Machine Vision in Practice 4, 21–31. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-43703-9_2.

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Ge, Yi-fan, Bao-zhang Qu, Liang Zhang, and Bi-hong Lu. "Controlling and Optimization of Maintenance Production System for EMU Bogies." In Proceeding of the 24th International Conference on Industrial Engineering and Engineering Management 2018, 54–63. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-3402-3_7.

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Romero Navarrete, José A., Frank Otremba, and Gerardo Hurtado Hurtado. "Experimental assessing of the rail forces due to bogies’ centre plate friction." In Advances in Mechanism and Machine Science, 3621–30. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-20131-9_357.

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Scheffel, H., R. D. Fröhling, and P. S. Heyns. "Curving and Stability Analysis of Self-steering Bogies having a Variable Yaw Constraint." In The Dynamics of Vehicles on Roads and on Tracks, 425–36. London: CRC Press, 2021. http://dx.doi.org/10.1201/9781003210900-32.

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Zhang, D. X. "Improving the Curving Performance of Powered Bogies and Optimizing Wheel/Rail Contact Conditions." In The Dynamics of Vehicles on roads and on tracks, 555–58. London: CRC Press, 2021. http://dx.doi.org/10.1201/9781003210894-62.

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Renger, A. "Lateral Dynamics of Complete Four-Axled Rail Vehicles with Powered Two-Axled Bogies." In The Dynamics of Vehicles on roads and on tracks, 305–24. London: CRC Press, 2021. http://dx.doi.org/10.1201/9781003210894-38.

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Scheffel, H., and H. M. Tournay. "The Mechanism of the Rotatable Lemniscate Suspension Applied to Bogies Having Selfsteering Wheelsets." In The Dynamics of Vehicles on roads and on tracks, 368–80. London: CRC Press, 2021. http://dx.doi.org/10.1201/9781003210894-43.

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Dhaware, Prashant A., and G. Arunkumar. "Experimental Investigation and Fatigue Analysis of Primary Suspension Spring of Railway Bogies: A Review." In Techno-Societal 2018, 951–63. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-16962-6_94.

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Conference papers on the topic "Bogies"

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Ahmadian, Mehdi. "On the Virtues of Steerable Locomotive Bogies." In ASME 1997 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/imece1997-0600.

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Abstract An overview of steerable bogies (or trucks) for railway vehicles is provided, along with their potential benefits to railroad operations. Some of the common designs for steerable bogies are reviewed. A NUCARS simulation model is used to compare a three-axle steerable and straight bogie in terms of their curving dynamics in 7.5- and 10-degree curves. The simulation results show that steerable bogies have a substantially lower axle angle of attack and wheel/rail lateral force. Further, the benefits of steerable bogies in terms of increased operational efficiency to the railroads are discussed.
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Khatchadourian, Varoujan. "Consolequip Steering Bogie for the Société Nationale Industrielle et Minière ‘SNIM’ de la Mauritanie." In ASME 2000 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/imece2000-2134.

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Abstract This paper describes in detail the design, engineering and testing conducted for 260 self-steering bogies in response to a bid from SNIM (Société Nationale Industrielle et Minière), in Mauritania, Africa. Severe environmental conditions in Mauritania, caused by the presence of sand, contribute to accelerated wheel tread wear. This in combination with asymmetric wheel wear typically experienced with the standard three-piece bogie, results in poor wheel life. A steering bogie improves wheel life by allowing the axles to self-align, thus reducing asymmetric wheel wear occurrence. Bogie behavior is explained by comparing the stiffness characteristics of self-steering bogies and standard three-piece bogies. High bogie stiffness keeps a truck square as it travels on the track, thus improving its dynamic response on tangent track. Split type friction wedges are used together with heavy-duty suspension system to obtain high bogie shear stiffness and vertical damping characteristics. An elastic shear pad between the roller bearings and the side frame pedestal roof allows the axles to self-align in curves, giving the truck its self-steering characteristic. The truck design is unique as the standard AAR unit guide bracket construction point and angle were changed to provide the alignment for the unique combination of axle spacing and wheel diameter. It utilizes 1000 mm diameter wheels and a wheel base of 1800 mm. The Consolequip steering bogie has been engineered to improve dynamic response on tangent track. This is done by increasing bogie interaxle shear stiffness which increases the threshold of truck hunting. Stability tests with service worn wheels confirmed stability speed to exceed operating speeds used by SNIM network. Preliminary projections have estimated an improvement of up to 50% in wheel life by reducing asymmetric wheel wear and the number of times they are re-profiled.
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Antipin, Dmitriy, Vladimir Vorobev, Denis Bondarenko, and Gennadiy Petrov. "ANALYSIS OF THE CREW PART OF THE LOCOMOTIVE TEM23 AND PROPOSALS FOR ELIMINATION OF DISADVANTAGES." In PROBLEMS OF APPLIED MECHANICS. Bryansk State Technical University, 2020. http://dx.doi.org/10.30987/conferencearticle_5fd1ed03361519.33564687.

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The analysis of the design features of the bogie of the TEM23 shunting diesel locomotive is carried out. In the process of analysis, the directions of its improvement are determined. It is proposed to rotate the bogie frame in the vertical plane by reducing the body supports to two and using a pivot with low lowering, equip the bogies with pneumatic spring suspension in the form of two corrugations installed in series with shortened suspension springs. The proposed options for improving the undercarriage of a diesel locomotive will increase the competitiveness of products and reduce costs
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Fomin, Oleksij, Angela Shvets, Vladimír Hauser, and Pavlo Prokopenko. "Transversal displacement of freight wagons bogies." In PROCEEDINGS OF THE 2ND INTERNATIONAL CONFERENCE ON BIOSCIENCE, BIOTECHNOLOGY, AND BIOMETRICS 2019. AIP Publishing, 2019. http://dx.doi.org/10.1063/1.5140863.

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Ward, C. P., R. Dixon, G. Charles, and R. M. Goodall. "Condition Monitoring of Rail Vehicle Bogies." In UKACC International Conference on CONTROL 2010. Institution of Engineering and Technology, 2010. http://dx.doi.org/10.1049/ic.2010.0447.

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Szpaczyńska, Daniela, Marian Łopatka, and Piotr Krogul. "The Running Gear Construction Impact on Obstacles Overcoming by Light High-Mobility UGV." In 11th Asia-Pacific Regional Conference of the ISTVS. International Society for Terrain-Vehicle Systems, 2022. http://dx.doi.org/10.56884/qsjo7805.

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Rubber tracked running gears are widely used in high-mobility Unmanned Ground Vehicles (UGV) to increase obstacle negotiation possibility in urban and rural terrain. The paper proposes a method of assessing the configuration of the light UGV`s tracked running gear in terms of the ability to overcome terrain obstacles. Five types of obstacles have been proposed: a road ditch, a lying log, a curb, a crop rows and a wavy meadow profile. Then designed four types of running gear with the same geometrical and mass parameters, differing in the way of applying the running wheels (rigid construction, consisted of sprocket, idler and four road wheels, two bogies solution, system with two bogies elastically mounted to frame and rocker-bogie construction). To compare the selected solutions, simulation in the multi-body environment program and the equations based on the Bekker theory was performed. The simulation results showed an improvement in the driving properties with the use of elastically suspended elements. Better copying of the shape of the obstacle by the running gear contributes to the required tractive effort at lower slip values. At the same time, the negative impact of elastically suspended elements on the platform's stability was indicated.
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Bosso, N., A. Gugliotta, and A. Soma`. "Multibody Simulation of a Freight Bogie With Friction Dampers." In ASME/IEEE 2002 Joint Rail Conference. ASMEDC, 2002. http://dx.doi.org/10.1115/rtd2002-1642.

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Freight bogies are often built using friction element instead of viscous dampers with great advantage regarding cost and manutenibility. On the other hand this technical choice leads to low performance of the vehicle. The aim of this work is to evaluate the behaviour of a Y25 freight bogie that is the most diffuse in Europe where friction dampers are used to reduce vertical and hunting vibrations. The purpose is also to improve a bi-dimensional model of friction damper and to test its numerical efficiency on a whole vehicle model in a multibody code.
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Lim, Seonbin, Junsun Yoo, and No-Cheol Park. "Calculation of Electromagnetic Forces for EDS Type Maglev Using 3-D Finite Element Model." In ASME 2021 30th Conference on Information Storage and Processing Systems. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/isps2021-65232.

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Abstract Electrodynamic (EDS) type suspension is appropriate for a high-speed maglev train as control is not essential to levitate a train. However, the trains might oscillate large in the vertical direction since there is no control for the EDS type maglev train. Linear Synchronous Motor (LSM) is used to propel trains as it can generate large propulsion force with high efficiency. LSM generate periodic, not uniform, Electromagnetic (EM) force and it cause vertical and lateral vibration. Therefore, EM forces acting on a maglev vehicle should be investigated to determine the vibration characteristics of a high-speed maglev train. An excitation force on bogies is nonlinearly changed by air gap between ground coils and magnets on bogies. Therefore, relative position of guide and a bogie could be defined to contracting time variant excitation force. The study focuses on verifying vertical and lateral vibration due to LSM that makes repeating propulsion force to a maglev vehicle. We made a transient 3-D EM analysis model that could simulate levitation and guidance force of a maglev vehicle. The model was constructed based on straight rail of the conventional maglev system, L0 series in Japan. We compared the simulation results, levitation, and guidance forces on single ground coil, with another study results. Also, total EM forces on a bogie in simulation results was compared with real track experimental results of another study. We could evaluate ride comport and running stability using our transient EM force by coupling with rigid body simulation.
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HARTWIG, HEIKO, CHRISTIAN MALLWITZ, TORBEN SCHULZ, and MARKUS TRAUPE. "OPTIMIZING THE MAINTENANCE PROGRAM FOR PASSENGER VEHICLES (OMP)." In 3rd International Workshop on Structural Health Monitoring for Railway System (IWSHM-RS 2021). Destech Publications, Inc., 2021. http://dx.doi.org/10.12783/iwshm-rs2021/36027.

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Rubber-metal components and hydraulic vibration dampers in bogies are subject to mechanical loads and time-dependent aging. Therefore, bogies receive an overhaul after a defined limit mileage (e.g. 1.5 million km) or limit time (e.g. 8 years), during which the affected components are replaced. By optimizing the heavy maintenance of bogies in rail vehicles, it is possible to stretch the running time or mileage intervals of the revision of the bogies or individual components with an acceptable increase in risk for the operation. In particular, the components of the running gear that are not designed to be fatigue-resistant and are not already subject to a separate maintenance strategy are considered. Furthermore, hydraulic vibration dampers and rubber-to-metal elements in the wheelset guidance system, in the spring systems (primary/secondary) and in the running gear steering system are particularly relevant for the investigation. This measure can reduce maintenance costs and increase vehicle availability. This approach to maintenance optimization has been successfully applied and implemented by DB AG in local and long-distance transport for several years.
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Choroman´ski, Włodzimierz, and Jerzy Kisilowski. "Adaptive Mechatronic Suspension of Railway Vehicles: Focus on Lateral Dynamics." In ASME 2003 International Mechanical Engineering Congress and Exposition. ASMEDC, 2003. http://dx.doi.org/10.1115/imece2003-41295.

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The subject of research in this work are models of railway bogies with so-called mechatronic suspension. The author presents concepts of the railway bogies construction in which the suspension parameters are controlled electronically by a computer control unit. The main purpose of the control is to stabilise the motion of the railway vehicle on the straight track and to ensure good guiding features on curved track. In the case of the classic solution for railway bogies a simultaneous fulfilment of both requirements imposes a contradictory requirement on the suspension parameters. It seems that a mechatronic suspension which has adaptively changeable parameters can overcome these difficulties. The authors propose fuzzy controllers to the synthesis of the control unit.
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Reports on the topic "Bogies"

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Thianwiboon, Mongkol, and Viboon Sangveraphunsiri. Traction Control of a Rocker-Bogie Field Mobile Robot. Warrendale, PA: SAE International, May 2005. http://dx.doi.org/10.4271/2005-08-0180.

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Paronish, Thomas, Rhiannon Schmitt, Paige Mackey, Dustin Crandall, Johnathan Moore, Sarah Brown, Timothy Carr, and Brian Panetta. Computed Tomography Scanning and Geophysical Measurements of Core from the Boggess 17H Well. Office of Scientific and Technical Information (OSTI), January 2022. http://dx.doi.org/10.2172/1839669.

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Ayyub, Bilal M., Andrew N. Blair, and Robert C. Patev. Risk Analysis of Design-Improvement Alternatives to the Lindy Claiborne Boggs Lock and Dam. Fort Belvoir, VA: Defense Technical Information Center, December 2002. http://dx.doi.org/10.21236/ada411318.

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Pappas, Gregory. Horizontal Models of Conviviality or Radical Democracy in the Americas Zapatistas, Boggs Center, Casa Pueblo. Maria Sibylla Merian International Centre for Advanced Studies in the Humanities and Social Sciences Conviviality-Inequality in Latin America, 2021. http://dx.doi.org/10.46877/pappas.2021.34.

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In this paper, I argue that despite their different circumstances (size, location, history, demography), the Zapatistas (Chiapas, Mexico), Boggs Center (Detroit, USA), and Casa Pueblo (Adjuntas, Puerto Rico) share common lessons that are worth considering, at a time when there is so much uncertainty and disagreement about how best to address social injustices and much disillusionment with representative democracy. After a summary of the history and accomplishments of each of these American communal activist organisations, I present the common lessons and consider some challenges and possible objections. They provide an alternative between naïve optimism and cynical passive pessimism. They practice horizontal models of conviviality and a holistic, ecological, and experimental approach to ameliorating injustices.
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Xiao, Qingnong, Xiaolei Zou, and Bin Wang. On the Initialization and Simulation of a Landfalling Hurricane Using a Variational Bogus Data Assimilation Scheme. Fort Belvoir, VA: Defense Technical Information Center, September 1999. http://dx.doi.org/10.21236/ada370802.

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Zou, Xiaolei, and Qingnong Xiao. Studies on the Initialization and Simulation of a Mature Hurricane Using A Variational Bogus Data Assimilation Scheme. Fort Belvoir, VA: Defense Technical Information Center, February 1999. http://dx.doi.org/10.21236/ada370783.

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Sokol, J., T. J. Pultz, and V. Bulzgis. Investigating Labrador Fens and Bogs using Multi-Temporal ERS-2 and RADARSAT Data. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2000. http://dx.doi.org/10.4095/219691.

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Ayyub, Bilal M., Andrew N. Blair, and Robert C. Patev. Expert-Opinion Elicitation for the Risk Analysis of Design-Improvement Alternatives to the Lindy Claiborne Boggs Lock and Dam. Fort Belvoir, VA: Defense Technical Information Center, December 2002. http://dx.doi.org/10.21236/ada411314.

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Baudais, Virginie, Annelies Hickendorff, Jaïr van der Lijn, Igor Acko, Souleymane Maiga, and Hussein Yusuf Ali. EU Military Training Missions: A Synthesis Report. Stockholm International Peace Research Institute, May 2022. http://dx.doi.org/10.55163/lfle9658.

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This paper draws overarching conclusions based on a synthesis of previously published case studies that examined the impact of EU military training missions (EUTMs) in Somalia (EUTM Somalia, 2010–), Mali (EUTM Mali, 2013–), the Central African Republic (CAR) (EUTM RCA, 2016–). It concludes that EUTMs are relevant niche operations. Despite difficult circumstances beyond the control of the missions, EUTM training and advisory efforts have increased the effectiveness of partner armed forces. While these gains have been marginal in CAR and Somalia, they have been a bit more pronounced in Mali. Yet, broader security sector reform and defence sector reform efforts to improve the accountability and governance of defence and security sectors have become bogged down. The main challenge is that EUTMs are generally mandated to implement largely technical and tactical agendas in contexts where the ongoing armed conflict and the politics of the security sector are not conducive to building professional national security forces. As a consequence EUTMs find themselves caught up in interlinked and partially overlapping dilemmas. This study concludes with seven partly overlapping recommendations to EU member states and to EUTMs to address the main limitations that are restricting the impact of the missions.
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Provencher, L., and J. M. Dubois. Interpretation guide of natural geographic features from ETM+ Landsat imagery and aerial photography: wetlands (marshes, swamps, and peat bogs). Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2005. http://dx.doi.org/10.4095/314973.

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