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Artículos de revistas sobre el tema "Car axle"

Autor: Grafiati

Publicado: 4 de junio de 2021

Última modificación: 10 de febrero de 2022

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1

Men, Yu Zhuo, Hai Bo Yu, and Na Huo. "Durability Fatigue Behavior and Vibration Modal Parameter Frequency Sweep for China-Made Car Rear Axle." Advanced Materials Research 479-481 (February 2012): 2104–8. http://dx.doi.org/10.4028/www.scientific.net/amr.479-481.2104.

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In order to research the fatigue fracture problem of the rear axle of a China-made car at the reliability test stage on the durable enhancement roads of proving ground, and the strain loading spectrum of the rear axle fracture location and the weak points of the finite element analysis was measured. The fatigue damage of the broken crack at the rear axle on the durable enhancement roads was calculated and contrasted detailedly. At the same time，a six-channel MTS coupling system is used to conduct the vibration mode frequency sweep to the rear axle and car body of test car and the benchmarking

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2

KOLATOR, Bronisław, Michał JANULIN, and Oleksandr VRUBLEVSKYI. "EFFECT OF A TORSEN DIFFERENTIAL MECHANISM ON CAR TYRE WEAR." Tribologia 280, no. 4 (2018): 31–37. http://dx.doi.org/10.5604/01.3001.0012.7482.

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4WD systems include various constructions aimed at optimal distribution of torque between drive axles. In these systems, it is necessary to apply mechanisms separating the power provided from the engine to drive wheels. Many systems operate on the basis of wet multi-disc clutch or/and dog clutch control with the use of mechatronic devices. However, in view of their reliability and construction simplicity, the most valuable 4WD systems under field conditions are mechanical solutions. Torsen is an inter-axle differential mechanism, where the emerging internal friction moment of this mechanism ca

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3

Yuan, Heng Yi, and Ming Wang He. "Based on 3D Virtual Prototype Technology and Finite Element Analysis of the Optimization of the Automobile Front Axle." Applied Mechanics and Materials 684 (October 2014): 330–34. http://dx.doi.org/10.4028/www.scientific.net/amm.684.330.

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The front axle is an important part of a car, directly affects the dynamic characteristics of car. Based on UG NX6.0 for automobile front axle parts 3D modeling, finite element analysis software ANSYS modal analysis was carried out on the front axle, and extract their first four order natural frequency and vibration mode shapes, the automobile front axle structure stress analysis and stress distribution nephogram of get parts. Analysis of the impact load condition and emergency braking conditions modal analysis, and further to fatigue analysis of the front axle bridge shell, for provide valuab

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4

Janoško, Ivan, Tomáš Polonec, Peter Kuchar, Pavel Máchal, and Martin Zach. "Computer Simulation of Car Aerodynamic Properties." Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis 65, no. 5 (2017): 1505–14. http://dx.doi.org/10.11118/actaun201765051505.

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The paper presents an optimization of car aerodynamic properties using the simulation software STAR‑CCM+. For real simulation was used tested car Fiat 127 which was modified on the performance car. The basic objective of this work is using computer simulations to obtain knowledge about the impact of individual body parts on the results of aerodynamic drag, downforce or lift. Based on the results, bodywork modifications will be designed to improve the aerodynamic characteristics of the body, but would not disrupt the basic shape and appearance of the vehicle. The modifications will be again sub

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5

Bujoaică, Răzvan, Ionel Vieru, Viorel Nicolae, and Dănuț Marinescu. "Virtual Model Used for Kinematics Study of Car’s Rear Axle." Applied Mechanics and Materials 822 (January 2016): 44–49. http://dx.doi.org/10.4028/www.scientific.net/amm.822.44.

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Abstract: The paper presents the possibility of generating a complex kinematic model that can be used to simulate various types of semi-independent rear axle used in the design of new cars. This model allows quick check for such axles of the interference that may occur in their functioning on the car. For application it was used the CATIA V5 software.

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6

Liang, Hong Qin, Yong Xiang Zhao, and Ping Bo Wu. "Equivalent Fatigue Stress Analysis of the Key Parts of Railway RD₂ Axle." Advanced Materials Research 466-467 (February 2012): 666–71. http://dx.doi.org/10.4028/www.scientific.net/amr.466-467.666.

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Nonlinear dynamics model of the C62freight car was established firstly and the random load spectrum acted on the wheelset was obtained by the simulation of the freight car running on a typical line. Taking the cyclic constructive relation of LZ50 axle steel into account in the finite element analysis of the wheelset, the stress time histories of the key parts of the axle in some typical conditions were got. Furthermore, based on the stress spectrum analysis of the hazard sections of the axle, the probabilistic fatigue stress spectrums with given probability and confidence were obtained. Finall

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7

Yang, Bing, and Yong Xiang Zhao. "Fatigue Reliability Research on RD₂Axle of Railway Freight Car." Key Engineering Materials 353-358 (September 2007): 62–65. http://dx.doi.org/10.4028/www.scientific.net/kem.353-358.62.

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Considering the difference between specimens and RD2 axle of C64A freight car, the extrapolated probabilistic fatigue S-N curves of LZ50 axle steel, which include the long life regime of material, are adjusted by introducing a probabilistic fatigue affecting factor, Kaffect. Based on the adjusted curves, fatigue reliability research on the axle at different operating speeds is carried out. It utilizes the fatigue stress spectrums of the axle in two different wheel set states, namely, normal state and scratched state. The fatigue operating life with arbitrary survival probability and confidence

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8

Odanovic, Zoran. "Analysis of the railway freight car axle fracture." Procedia Structural Integrity 4 (2017): 56–63. http://dx.doi.org/10.1016/j.prostr.2017.07.009.

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9

Taryma, Stanisław, Grzegorz Ronowski, Krzysztof Brzozowski, Łukasz Lichota, Marcin Miotk, and Paweł Miodoński. "Duomoto sport car with two-strolled transmission systems." AUTOBUSY – Technika, Eksploatacja, Systemy Transportowe 19, no. 9 (2018): 173–78. http://dx.doi.org/10.24136/atest.2018.310.

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The sports car, powered by two engines, designed and built by a team of four graduates of the Faculty of Mechanical Engineering at the Gdańsk University of Technology is prezented. One (engine) of them was placed at the front of the vehicle. It transmits the torque to the wheels of the front axle through a combined system. The second engine, located at the rear of the vehicle, in the same way transmits the drive torque to the wheels of the rear axle. The car named Duomoto was built on the basis of two Volkswagen Golf GT. It was subjected to road tests. The test results and conclusions are incl

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10

Zhang, You Kun, Tong Hui Ju, Tong Jie Shi, and Yan Hui Lu. "Research on the Lubrication Problems of Driveline Gearbox." Applied Mechanics and Materials 602-605 (August 2014): 390–93. http://dx.doi.org/10.4028/www.scientific.net/amm.602-605.390.

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Driveline gearbox includes transmission gearbox and rear axle,automotive gear oil used to lubricate gear.Take rear axle for example,through catia ,we can build three-dimensional models,and use ansa to mesh axle , then import it to fluid software fluent to analyze temperature,and obtain oil temperature curve under certain load over time;it can predict transmission efficiency and equilibrium temperature under a certain load ,and reduce gear wear and improve the operational reliability of the car.

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11

Dobre, George, Viorel Mateescu, Mihai Tica, and Radu Florin Mirica. "Study of Car Multi-Link Rear Axle Considering Their Kinematic Incompatibilities." Key Engineering Materials 450 (November 2010): 316–19. http://dx.doi.org/10.4028/www.scientific.net/kem.450.316.

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Multi-link rear axles offer some important advantages relative to vehicle handling. But the structure of the multilink split type generally determines kinematic incompatibilities in its operation. The paper studies some aspects surrounding constructive solutions that could minimize these kinematic incompatibilities. Some rear axle mechanisms from different cars were measured and analyzed as component shape by authors; this process allows the geometrical modeling and animation of systems using specialized software (Autodesk Inventor Professional 8). The effects of these modeled structures (the

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12

Zhang, Xiao Xia, and Yu Qiang Ma. "The Dynamics Studies of a Four-Axle Bogie of Locomotive." Advanced Materials Research 753-755 (August 2013): 1745–50. http://dx.doi.org/10.4028/www.scientific.net/amr.753-755.1745.

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A type of bogie structure was proposed for the eight-axle locomotive, of which the middel bogie forme was used to connect the two B0 bogie and support the car body with three suspensions. A single drawbar connect the B0 bogie and car body directly to transfer the longitudinal forces. This structure is simple and feasibility, which can achieve high adhesion availabillity and good dynamic performances. Three suspension can achieve a excellent stability of car body. Comparing with a same speed and axle load class 2C0 locomotive, the wheelset lateral force and wheel rim wear factor are reduced by

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13

Alexandru, Cătălin. "Analytical Method for Determining the Static Equilibrium Position of the Rear Axles Guiding Mechanisms of the Motor Vehicles." Applied Mechanics and Materials 841 (June 2016): 59–64. http://dx.doi.org/10.4028/www.scientific.net/amm.841.59.

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The work deals with an analytical algorithm for determining the static equilibrium position of the multi-link guiding mechanisms used for the rear axles of the motor vehicles. The method is based on the virtual mechanical work principle, considering the external forces applied to the wheels, as well the reaction forces in the elastic elements of the suspension. The equilibrium position of the guiding mechanism is established relative to the car body, considering the static model of the suspension system, in which the car body is fixed connected to ground (in other words, the car body is the re

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14

Zeng, Qing Liang, Yu Shan Li, Cheng Long Wang, and Zhi Hai Liu. "Modelling and Analysis for an Electric Power Assisted Steering System of Plug-In Hybrid Electric Car." Key Engineering Materials 419-420 (October 2009): 229–32. http://dx.doi.org/10.4028/www.scientific.net/kem.419-420.229.

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Plug-in hybrid electric vehicles (PHEVs) have been seen as promising vehicles which have merits of hybrid electric vehicles and electric vehicles. Because of difficulties of plug-in hybrid electric vehicles’ development, it is necessary to study revamped method on the base of original car. Electric power steering (EPS) is an advanced steering system that uses an electric motor to provide steering assist. Because PHEVs are often on electric-electric operating mode, steering system power should be supplied with electric motor. Also, reconfigration of the power system including batteries results

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15

Guo, Xing Yu, and Peng Zhang. "Research on the Manufacturing Process of the Whole Fiber Hollow the Trailer Axle." Advanced Materials Research 602-604 (December 2012): 1883–86. http://dx.doi.org/10.4028/www.scientific.net/amr.602-604.1883.

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With the rapid development of road transport enterprise and the popularity of car trailer transport, semi-trailer has become the main means of transport of road freight. So the semi-trailer manufacturing has become an important component part of the auto industry. Speed and heavy duty are the long-term pursuit of the High-speed transport, the key to solving this problem is a component of lightweight, while the hollow axle is the important one. The hollow axle manufacturing process, with many process factors, is more complex than the solid one. Therefor, the research on the hollow axle manufact

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16

Lai, Hui Fen, and Wu Zheng Xiao. "The Analysis on the Typical Parts in F1 Race Car." Applied Mechanics and Materials 215-216 (November 2012): 1136–39. http://dx.doi.org/10.4028/www.scientific.net/amm.215-216.1136.

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This document explains and demonstrates how to analyze the stress of the axle, modify the rear wing and SolidWorks dynamic simulation analysis for the F1 Race Car. It offers a variety of results visualization tools that allow investigators to gain valuable insight into the design of the F1 race car, and makes it easy to share analysis results effectively with everyone involved in the F1 race car product development process.

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17

Vaverka, Ondřej, Daniel Koutny, and David Palousek. "Topologically optimized axle carrier for Formula Student produced by selective laser melting." Rapid Prototyping Journal 25, no. 9 (2019): 1545–51. http://dx.doi.org/10.1108/rpj-07-2018-0171.

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Purpose This paper aims to present the design process, manufacturing and testing of a prototype of an axle carrier for Formula Student race car. The axle carrier is topologically optimized and additively manufactured using selective laser melting (SLM). Design/methodology/approach The shape of the axle carrier was created in three design stages using topology optimization and four additional design stages based on finite element calculations and experimental testing. Topology optimization was performed on the basis of relevant load cases. The sixth design stage was manufactured by SLM and then

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18

Bityutskiy, Nikita Alexandrovich, Vladimir Viktorovich Galov, Lyudmila Valerievna Tsyganskaya, and Alexander Igorevich Bondarenko. "Modernization of eight-axle tank car for alkylbenzenesulfonic acid with extension of service life." Transport of the Urals, no. 2 (2020): 41–46. http://dx.doi.org/10.20291/1815-9400-2020-2-41-46.

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The paper considers an issue of extending the service life of eight-axle tank cars for alkylbenzenesulfonic acid by modernization of car design. The modernization included technical diagnostics of cars with basic design, repair or replacement of car parts and equipment, calculations and tests of modernized car design. During the technical diagnostics of cars the authors carried out a statistical analysis of failures, determined a speed of corrosion of car elements in operation and predicted a residual service life. On the basis of results of technical diagnostics the authors created a finite e

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19

Zargartalebi, Ali, and Kourosh Heidari Shirazi. "Dynamic Modelling of Axle Tramp in a Sport Type Car." Shock and Vibration 20, no. 4 (2013): 711–23. http://dx.doi.org/10.1155/2013/213965.

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One of the most significant dynamic aspects of coupled vibration of transmission system and dependent type suspension systems is axle tramp. The tramp is defined as undesirable oscillation of rigid live axle around roll axis. In spite of utilizing powerful engines in some type of sport cars, tramp occurrence causes loss of longitudinal performance. The aim of this paper is to derive a mathematical model for predicting and classifying of the tramp. A parameter study reveals that, some parameters such as engine torque, moving parts moment of inertia, car and wheels weight and the material used i

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20

IVANOV, Rosen. "ANALYTICAL RESEARCH ON THE GRIP VARIATION OF TWO-AXLE CAR." Transport Problems 11, no. 4 (2017): 5–13. http://dx.doi.org/10.20858/tp.2016.11.4.1.

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21

Kanchwala, Husain. "Vehicle suspension model development using test track measurements." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 234, no. 5 (2019): 1442–59. http://dx.doi.org/10.1177/0954407019867504.

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Detailed suspension modeling is a prerequisite for accurate vehicle dynamics simulation. Quarter car models are widely used in the literature, but they are simple and do not capture all dynamic effects. On the other hand, full car models are computationally complex and not available to the designer at initial stage of vehicle development. A test track data based methodology to develop a Laplace domain reduced order suspension model of intermediate complexity between a full car and a quarter car model is presented in this paper. A prototype vehicle is driven on sinusoidal tracks and vertical ac

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22

Zhao, Yong Xiang, Bing Yang, Ming Fei Feng, Y. Li, M. J. Liu, and Guo Xiang Song. "Probabilistic Critical Fatigue Safety State of the RD2 Type Axle of China Railway Freight Car." Advanced Materials Research 44-46 (June 2008): 751–58. http://dx.doi.org/10.4028/www.scientific.net/amr.44-46.751.

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Critical fatigue safety state is investigated on RD2 type axle of China railway freight cars. Attention is paid on the grooves near axle boxes, where more fatigue cracks were early appeared even result in at least six derailed accidents. Load history was obtained by vehicle dynamics simulation combining with on-line inspection. Braking loads and effects of maintenance and off-round of wheels are also incorporated. Semi-elliptical and external circumferential cracks are employed for crack growth simulation. Crack shape change and shear stressing of the semi-elliptical crack are taken into accou

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23

Starshov, I. P., V. A. Kobzev, and E. I. Sychyov. "Improving the Methodology for Calculating the Parameters of Hump Yards." World of Transport and Transportation 17, no. 4 (2020): 90–97. http://dx.doi.org/10.30932/1992-3252-2019-17-4-90-97.

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The paper presents a new approach to selection of design standards in design of hump yards, which are among the most important elements of railway stations. The height of gravity hump is a key parameter to ensure succesful and safe operations of separating railway cars at stations. Estimations of the gravity hump’s height are influenced mostly by the path length and the value of the main specific resistance to movement of the estimated free axles. Following currently changing structure of the processed car flow at stations, it is necessary to update the current methods. The objective of the st

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24

Livcov, Yuriy, Vladimir Bezkorovaynyy, and Andrey Kireev. "DEVICE REALIZATION OF MAGNETIC METHOD FOR DEFINITION OF METAL STRENGTHENED LAYER THICKNESS IN ROLLING-STOCK AXLE." Bulletin of Bryansk state technical university 2021, no. 2 (2021): 28–37. http://dx.doi.org/10.30987/1999-8775-2021-2-28-37.

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The simplest and accessible method for rolling-stock axle surface strengthening is surface processing with cold plastic deformation by means of rolling. This process is one of the stages in manufacturing diesel locomotive and car axles of a rolling-stock.  The basic parameters of rolling engineering process are micro-hardness of a metal surface strengthened layer and its depth, which at present are controlled by means of cutting out longitudinal polished specimens from the axle and in case of the deviation from the required value the whole set axles is rejected. That is why there is offe

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25

TANAKA, Shin-ichi, and Kazuhiko TEZUKA. "Strength design method for the axle of high speed railway car." Journal of the Society of Materials Science, Japan 39, no. 436 (1990): 52–57. http://dx.doi.org/10.2472/jsms.39.52.

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26

Odanovic, Zoran, Mileta Ristivojevic, and Vesna Milosevic-Mitic. "Investigation into the causes of fracture in railway freight car axle." Engineering Failure Analysis 55 (September 2015): 169–81. http://dx.doi.org/10.1016/j.engfailanal.2015.05.011.

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27

Wu, Pingbo, Hong Zhang, and Hongqin Liang. "D404 FATIGUE RELIABILITY ANALYSIS OF FREIGHT CAR AXLE UNDER RANDOM LOADS." Proceedings of International Symposium on Seed-up and Service Technology for Railway and Maglev Systems : STECH 2003 (2003): 431–35. http://dx.doi.org/10.1299/jsmestech.2003.431.

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28

Jeadi, Raymond Philander, and Andoko Andoko. "Failure analysis of railway freight car axle with finite method element." IOP Conference Series: Materials Science and Engineering 1034, no. 1 (2021): 012021. http://dx.doi.org/10.1088/1757-899x/1034/1/012021.

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29

Wei, Bo, and Xing Yi Su. "Simulation and Calculation: Improve Work Life of Bearing on Driving Gear of Main Reducer." Applied Mechanics and Materials 644-650 (September 2014): 128–33. http://dx.doi.org/10.4028/www.scientific.net/amm.644-650.128.

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The driving gear and driven gear in car rear axle have function of transmitting power. As important part of supporting driving gear, work life and situation of bearing have influence on power transmission. This paper improves system stiffness of gear and bearing, improves force situation of bearing by researching span between two bearings on driving gear. Work situation of main reducer can be improved through extending bearing life. The vibration and noise are reduced. Car market competition is improved.

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30

Kim, Yeon Su, Se Ky Chang, Kyeong Ho Moon, and Jai Kyun Mok. "Dynamic Characteristics of Composite Materials Body for Bi-Modal Tram." Key Engineering Materials 488-489 (September 2011): 81–84. http://dx.doi.org/10.4028/www.scientific.net/kem.488-489.81.

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The car body of the bi-modal tram has been designed and built to have low floor to provide the old and the handicapped with easy access considering Korean physical standard, passenger capacity (standee, seated, handicapped), and bus and urban railway regulations in Korea. The car body has been composed of composite materials (light-weight sandwich constructions) with glass epoxy skins, aluminum honeycomb cores and aluminum inner-frames. This paper was aimed to evaluate dynamic characteristics of the car body while the bi-modal tram was running in the test track. Based on the results from vibra

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31

Goodrum, WJ, and D. Cebon. "Synthesising spatially repeatable tyre forces from axle load probability distributions." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 230, no. 5 (2015): 699–714. http://dx.doi.org/10.1177/0954406215575581.

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Spatially repeatable dynamic tyre forces arise because heavy trucks are similar in weights, dimensions and dynamic characteristics and they travel at similar speeds. It is important to be able to model the statistical and spatial characteristics of dynamic tyre forces, using efficient algorithms, when studying the effects of vehicle–road interaction. Pitch-plane vehicle models derived from ‘per-vehicle’ weigh-in-motion (WIM) data of US ‘Class 9’ vehicles were used to generate a Virtual WIM vehicle fleet for spatial repeatability calculations. Four methods were investigated for simulating dynam

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32

Herrmann, Michael, Rainer Jöst, Florian Kehl, Ali Özkan, Simon Pless, and Frank Gauterin. "Importance of Vehicle Body Elements and Rear Axle Elements for Describing Road Booming Noise." Vehicles 2, no. 4 (2020): 589–603. http://dx.doi.org/10.3390/vehicles2040034.

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For investigating influences of vehicle components on the acoustic comfort at low frequencies, e.g., the booming noise behavior of a vehicle, building a whole car simulation model is useful. To reduce the model’s complexity and to save resources in the validation process, we first identify relevant components before building the model. Based on previous studies, we focus on the vehicle’s body and the rear axle. In this paper, we analyze which axle and body elements are crucial for describing road booming noise. For this purpose, we use impact measurements to examine noise transfer functions of

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33

Georgiev, Zlatin, and Lilo Kunchev. "Study of the vibrational behaviour of the components of a car suspension." MATEC Web of Conferences 234 (2018): 02005. http://dx.doi.org/10.1051/matecconf/201823402005.

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The paper presents a study of the vibrational behaviour of a car suspension in the frequency range from 50 to 200 Hz. The vehicle has a torsion spring suspension. The aim of the study is to provide a numerical approach, which evaluates the impact of the tyre vibration characteristics and the elastic properties of suspension elements on the vibrational behaviour of the “tyre-suspension-body” system. The object of the study are the elements of the suspension – stub-axle, upper and lower suspension arms, strut rod, torsion bar and others. The suspension is equipped with pneumatic tyres with diffe

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34

Zhang, Hongliang, Jing Yang, and Taoyuan Yang. "Multiobjective Optimization Model for Profile Design of Hump Distributing Zone." Mathematical Problems in Engineering 2017 (2017): 1–11. http://dx.doi.org/10.1155/2017/9318025.

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Railway freight trains consist of many cars heading to different destinations. Hump is the special equipment that distributes cars with different destinations to different tracks in a marshalling station. In recent years, with the development of Chinese freight car technology, the axle load has risen from 21 ton to 23 ton and will rise to 27 ton in the future. Many rolling problems appear in the hump distributing zone with the application of 23-ton axle load cars, which will be exacerbated by 27-ton axle load cars. This paper proposes a multiobjective optimization model based on the angle of t

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35

Lin, Boliang, Xingkui Li, Zexi Zhang, and Yinan Zhao. "Optimizing Transport Scheme of High Value-Added Shipments in Regions without Express Train Services." Sustainability 11, no. 21 (2019): 6108. http://dx.doi.org/10.3390/su11216108.

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In railway transportation, high value-added shipments in regions with large traffic volumes are generally delivered by express train services, since these freights need to be delivered in a short time. However, there are also high value-added shipments in areas where express train services are not available. If these freights are delivered by the traditional approaches (i.e., the freight cars are delivered to the adjacent classification yard by local trains, combined with other freight cars to form a train, and finally sent to the destination according to the transportation plan) with multiple

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36

Li, Jin Liang, Nan Xiao, Chang Wu Huang, and Nian Jun Fu. "Thermal Elasto-Plastic FEM Analysis of the New Heavy-Haul Freight Car Wheel Plate." Applied Mechanics and Materials 251 (December 2012): 304–9. http://dx.doi.org/10.4028/www.scientific.net/amm.251.304.

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Increasing the axle loads is becoming one of the solutions to meet the increasing demands of transportation, which makes the wheel bear larger heat loads and suffer worse heat damage. Therefore, it is necessary to simulate the thermal stress of the 30 t axle-load wheel and reveal the influence law between the braking power and the thermal damage in order to support the design of operating and braking. And a new method that simulates the braking working conditions based on the results of the heat treatment is put forward. According to the thermal elasto-plastic theory, this paper simulates the

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37

Lin, Feng, and Yong Xiang Zhao. "Finite Element Analysis on the Fatigue Stresses of a Railway Vehicle Roller Bearing." Advanced Materials Research 44-46 (June 2008): 935–41. http://dx.doi.org/10.4028/www.scientific.net/amr.44-46.935.

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The distributed fatigue stresses of 353130B roller bearing of China freight car with K5 type titling bogie are investigated using an elastic-plastic finite element (FE) analysis. Policy of two steps is applied. First, an integral FE analysis is performed on adapter-bearing-axle-wheel-track interactive system. Second, local analysis is applied to the local axle-bearing-adapter part, in which on the section of axle is with the bound condition obtained from the integral analysis. Wheel contact force spectrum on a curved railway line by on-line inspection is used for the present study. Previous pr

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38

Devlikamov, R. R. "MAIN FAULTS AND DIAGNOSTICS OF THE REAR AXLE OF THE KAMAZ CAR." Сурский вестник, no. 1 (2021): 40–46. http://dx.doi.org/10.36461/2619-1202_2021_13_01_008.

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39

Zboinski, Krzysztof, and Milena Golofit-Stawinska. "Investigation into nonlinear phenomena for various railway vehicles in transition curves at velocities close to critical one." Nonlinear Dynamics 98, no. 3 (2019): 1555–601. http://dx.doi.org/10.1007/s11071-019-05041-2.

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Abstract In this paper recent simulation results aimed at studying nonlinear phenomena that accompany motion of railway vehicle in transition curve at velocities around the vehicle critical velocity are presented by the authors. Such results concern six different objects representing railway vehicles. These are: three 2-axle railway bogies, two 2-axle railway cars, and 4-axle railway car. The paper attention is devoted to presenting as many different nonlinear behaviours of the studied objects as possible. This is done first of all to give an idea to the readers of great number of the nonlinea

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Kukin, S. V. "EVALUATION OF THE BRAKING EFFICIENCY OF TANK CAR MODELS 15-7140 FOR COMPLIANCE WITH REQUIREMENTS OF GOST 34434-2018." Railbound Rolling Stock, no. 21 (December 24, 2020): 120–32. http://dx.doi.org/10.47675/2304-6309-2020-21-120-132.

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Results for study of the braking efficiency of tank car model 15-7140 for compliance with requirements GOST 34434-2018 are given. Research was performed using method of “throwing”, and data processing was performed using special drawn up ECM program taking into account actual tank parameters. Braking coefficients of a single car were recalculated to maximum car loading taking into account axle loading, and to minimal pressure in the braking cylinder of loaded and empty cars. It was determined that the braking distance of the train of the site of loaded tank cars model 15-7140 corresponds to th

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Sönmez, Murat. "A Study on the Combined Effect of Axle Friction and Rolling Resistance." International Journal of Mechanical Engineering Education 31, no. 2 (2003): 101–7. http://dx.doi.org/10.7227/ijmee.31.2.2.

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Many textbooks on mechanics for engineering students and engineers consider the concepts of rolling resistance and axle friction separately, expecting readers to combine the given analysis for each of them in determining, for instance, the magnitude of the force needed to move a railroad car. However, this requires a thorough free-body diagram analysis and, since examples are not typically included in the textbooks, students may have difficulty solving such problems. This study represents the solution of the problem in terms of both the dry axle friction and the rolling resistance. It is also

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42

Krauze, Piotr, and Jerzy Kasprzyk. "Mixed Skyhook and FxLMS Control of a Half-Car Model with Magnetorheological Dampers." Advances in Acoustics and Vibration 2016 (October 25, 2016): 1–13. http://dx.doi.org/10.1155/2016/7428616.

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The problem of vibration attenuation in a semiactive vehicle suspension is considered. The proposed solution is based on usage of the information about the road roughness coming from the sensor installed on the front axle of the vehicle. It does not need any preview sensor to measure the road roughness as other preview control strategies do. Here, the well-known Skyhook algorithm is used for control of the front magnetorheological (MR) damper. This algorithm is tuned to a quarter-car model of the front part of the vehicle. The rear MR damper is controlled by the FxLMS (Filtered-x LMS) taking a

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43

Wu, Xingwen, Subhash Rakheja, AKW Ahmed, and Maoru Chi. "Influence of a flexible wheelset on the dynamic responses of a high-speed railway car due to a wheel flat." Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit 232, no. 4 (2017): 1033–48. http://dx.doi.org/10.1177/0954409717708895.

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Large magnitude impact loads caused by wheel flats may excite various vibration modes of wheelsets employed in high-speed trains and thereby contribute considerably to the dynamic response of vehicles. In this study, the wheelset is modeled as a flexible body using the modal approach, which is integrated to a multibody dynamic model of the high-speed train coupled with a flexible track slab model. The multibody dynamic model is formulated for a typical high-speed train consisting of a car body, two bogie frames, and four wheelsets. The track is modeled considering the rail as a Timoshenko beam

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Lieh, J. "The Effect of Bandwidth of Semiactive Dampers on Vehicle Ride." Journal of Dynamic Systems, Measurement, and Control 115, no. 3 (1993): 571–75. http://dx.doi.org/10.1115/1.2899142.

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A passenger car model with a full car body and four wheel-axle assemblies is used to investigate the influence of semiactive suspensions on ride performance. Mean square values are evaluated for various damping levels and control valve switching times. Due to severe nonlinearities, frequency responses are not obtained directly. They are reconstructed from Fast Fourier Transform (FFT) using a Hanning window. The results are compared with those from LQR active suspensions and pure on-off dampers. The effect of control valve switching time (bandwidth) is studied and shows a significant influence

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Ushkalov, V. F., T. F. Mokrii, I. Yu Malysheva, and N. V. Bezrukavyi. "Analysis of the effect of wheel–rail pair contact surface wear on the oscillations of a freight car with an increased axle load." Technical mechanics 2020, no. 4 (2020): 117–25. http://dx.doi.org/10.15407/itm2020.04.117.

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At present, nearly all countries of the world develop and implement measures aimed to increase the competitiveness and efficiency of their railways. One of the priority lines is to increase the carrying capacity of freight trains. In Ukraine, 18-9817 trucks of axle load 25 tf were developed and adopted as basic ones for new-generation freight cars, and the ITM-73-03 wear-resistant wheel profile of flange thickness 32 mm was developed for them too. The aim of this paper is to study the effect of in-service variation in the wheel and rail profile shape on the spatial oscillations of a freight ca

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Auersch, Lutz. "Simultaneous Measurements of the Vehicle, Track, and Soil Vibrations at a Surface, Bridge, and Tunnel Railway Line." Shock and Vibration 2017 (2017): 1–18. http://dx.doi.org/10.1155/2017/1959286.

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A complex measuring campaign has been performed including the simultaneous measurement of vehicle, track, and soil vibrations during train runs at 16, 25, 40, 63, 80, 100, 125, 140, and 160 km/h and impulse measurements of the passenger car, three track sections, and the soil. A ballast track on the soil surface and on a concrete bridge has been investigated as well as a slab track in a tunnel. The evaluation and comparison of all these data show a generally good agreement for all components if the strong low- and high-frequency cut-off characteristics of the layered and damped soil are incorp

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Brabie, D., and E. Andersson. "On minimizing derailment risks and consequences for passenger trains at higher speeds." Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit 223, no. 6 (2009): 543–66. http://dx.doi.org/10.1243/09544097jrrt271.

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The first part of this article deals with the possibility of preventing wheel climbing derailments after an axle journal failure by implementing mechanical restrictions between the wheelsets and the bogie. A multi-body system (MBS) computer model is developed to account for such an axle failure condition, which is successfully validated by comparing the pre-derailment sequence of events with two authentic cases. An extensive parameter analysis on the maximum vertical and longitudinal play between the wheelset and the bogie, required to prevent a high-speed power or trailer car to derail, is pe

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Ushkalov, V. F., T. F. Mokriy, I. Yu Malysheva, and N. V. Bezrukavyi. "Wear-resistant wheel profile for a freight car with an increased axle load." Technical mechanics 2018, no. 1 (2018): 20–29. http://dx.doi.org/10.15407/itm2018.01.020.

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Ramirez Ruiz, Isabel. "High Performance Electromechanical Actuator for Active Rear Axle Kinematics of a Sports Car." SAE International Journal of Passenger Cars - Electronic and Electrical Systems 5, no. 2 (2012): 528–40. http://dx.doi.org/10.4271/2012-01-0974.

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Kladko, N. "INCREASE OF THE RESOURCE IN AXLE BOX WITH ROLLER BERARING OF FREIGHT CAR." Collection of scientific works of the State University of Infrastructure and Technologies series "Transport Systems and Technologies" 32, no. 1 (2018): 175–82. http://dx.doi.org/10.32703/2617-9040-2018-32-1-175-182.

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