Fast and Accurate Position Determination of Multimodal Couplings of Steel Rolling Machinery and Equipment Combined with Multimedia Optimized Particle Filters

During the overhaul and maintenance of the transmission system of the modern rolling mill, a very common problem is the positioning of the motor and the reducer or speed increaser. The operation of the equipment and the service life of the equipment will be significantly affected by the accuracy of the multimodal coupling position determination. Therefore, precise positioning and rapid positioning must be achieved. This article intends to analyze how this type of equipment achieves rapid and accurate positioning and what factors will affect the location determination process.

Current trends in the development of stands for running-in gearboxes

Engines, gearboxes, transfer cases and axles are subject to mandatory run-in, performed on special stands. Node-by-node running-in of aggregates allows to determine not only assembly defects, but also identify design flaws and eliminate them in a timely manner. (Research purpose) The research purpose is in analyzing the design of modern stands for running-in gearboxes and identify the main directions of their improvement. (Materials and methods) The article presents a review of running-in stands for gearboxes of cars and tractors developed by domestic and foreign enterprises over the past 10 years. (Results and discussion) The article presents the design of stands of Russian and foreign manufacturers. Authors have identified their shortcomings and advantages. It has been noted that when running gearboxes on the stand the following parameters are controled: the rotation speed of the drive and driven shafts, the torque on the drive shaft, power consumption, oil temperature in the gearbox and the tank stand, volumetric flow of oil pump, oil pressure in the main and lubricating circuits. It has been found that the direction of development of stands for running-in is constantly developing, the design of stands is being improved. (Conclusions) Analysis of modern stands for running-in gearboxes has shown that domestic manufacturers of stands are not only not inferior to foreign ones, but even surpass them in terms of automation, the number of controlled parameters, ergonomics and design. The desire of Russian enterprises to equip their production halls with modern rolling stands should contribute to improving the reliability and quality of manufactured agricultural machinery, which in turn should lead to an increase in its competitiveness in the Russian and world markets.

MODERN ROLLING COMPOSITION OF RAILWAY TRANSPORT. MAIN TRENDS IN TRANSPORT ENGINEERING

The article explores the main technical parameters of modern electric locomotives in Russia. The renewal of the locomotive complex directly affects the quality of the transportation process. Due to the growing volume of cargo transportation, the intensity of passenger train traffic between large cities, the growth of transit container traffic, the existing dilapidated rolling stock needs updating to be ready for the annually increasing demand for rail transportation.

Testing railway capacity using modern microsimulation programs

In a time of dynamic changes in the railway market and nascent need of adjustment the infrastructure to increasing traffic flow and modern rolling stock, the issue of capacity is becoming more and more essential. In this publication the modern attempt at testing capacity – utilization of microsimulation program using as an example a section of the railway with diverse equipment is presented.

Electrical power infrastructure for modern rolling stock with regard to the railway in Poland

Implementing high-speed trains on Polish railway lines requires a new approach to the issue of power and energy supply via a 3 kV DC power system. Due to the control systems used, modern rolling stock equipped with asynchronous drive allows maintaining a set speed, as far as a locomotive’s power and voltage in a catenary allow it. Characteristics of traction vehicles with asynchronous drives enables run at voltage lower than the rated voltage, however, it entails decrease of consumed power (required for locomotives with power above 2 MW) and loss of motion dynamics. Modernisation of a railway power supply system conducted in Poland since the mid-1990s of the 20th century has intensified in the past couple of years (so-called MUZ-I program) due to the purchase of Pendolino trains, and it primarily include the main lines. A number of modernisation investments (lines E65, E20, E30) are implemented with co-financing from the EU funds. Due to the predicted trains’ speed (200 km/h and above), in order to fulfil the requirements specified in TSI, a power supply system on these lines should ensure achieving high parameters, that is supply of trains with current up to 3.2 kA, while the so-called mean useful voltage should not be lower than 2.8 kV. The article presents solutions introduced on Polish railway and aiming at adjusting the power supply used to the TSI requirements. The range of conducted modernisation works allows for conclusion that the process is in fact a re-electrification of railway power supply systems.

Recycling of Rolling Stocks

This review paper highlights feasible and practicable approaches for managing end-of-life rolling stocks. It aims to promote and enable sustainable procurement policy for rolling stocks. Firstly, it demonstrates that modern rolling stocks can potentially gain the environmental benefits since almost all of their materials used in the rolling stock manufacturing can be recycled and reused. In this study, brief definition and concept of various train types are introduced and discussed, accompanied by some demonstrative illustrations. Then, component analyses, recovery rates and percent proportion of each material in various rolling stock assemblies have been evaluated. The estimation of material quantities that can potentially be recycled has been carried out using industry data sources. The suitable management procedures for end-of-life rail vehicles are then discussed, together with the life cycle of the key materials in which the recyclability criteria take into account the environmental risks and the best and safest approaches to deal with them. The aim of this study is to increase the awareness of the public, train manufacturers and rail industries on the benefits to the environments from rolling stock recycling, which could result in sustainable society and urban livings.

Recycling of Rolling Stocks

This review paper presents the importance of recycling, nowadays, in our society. Firstly, it demonstrates that modern rolling stocks can be useful for this environmental benefit since almost all the materials involved in their composition can be recycled and reutilised. To begin with, a brief definition and concept of each type of train are discussed herein, accompanied by some demonstrative illustrations. Then, in order to explain better the component analyses, the recovery rates and the percentage of each material belonging to trains composition have been highlighted. In this way, an idea of the quantity of the materials that can be recycled was designed. Furthermore, the suitable end-of-life rail vehicles procedures are discussed, as well as the life cycle of the main materials in which both criteria take into account the environmental issues and the best and safest way to deal with them. Finally, this research reports more specifications about the applications of all the recycling processes involving those principal railway materials. The aim of this study is to make the manufacturers and industries aware of how rolling stock recycling can bring benefits to the environments and, consequently, to the society.

ASSESSMENT OF THE RELIABILITY OF CURRENT COLLECTORS FOR HIGH-SPEED TRAFFIC

Modern rolling stock must have high reliability, as it provides high-speed movement of goods andpassengers. This applies to all its constituent parts, components and assemblies, particularly those thatprovide traffic and security are the foundation of the locomotive as a whole. Since from here it is necessaryto assess the reliability of mathematical responsible units of electric rolling stock and, in particular, currentcollectors.The stability of the current collection at railway roads depends on many factors, including thecharacteristics of the pantograph and contact network. Interaction pantograph suspension and contact is acomplex process, especially at high speeds. To ensure continuous quality current collection and Currentcontact network must have high reliability.In case of refusal trolley stops rolling stock supply electricity. This can lead to temporary, economicor material costs. To avoid this, specify resource pantograph and yohoskladovyh.