scholarly journals Identification of the Major Noise Energy Sources in Rail Vehicles Moving at a Speed of 200 km/h

Energies ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3957
Author(s):  
Krzysztof Polak ◽  
Jarosław Korzeb
Keyword(s):  
Experimental Research ◽  
Energy Sources ◽  
Dominant Source ◽  
Railway Vehicles ◽  
Measurement Apparatus ◽  
Rail Vehicles ◽  
Noise Energy ◽  
Rolling Noise ◽  
Multiple Units

In this work, the problematic identification of the main sources of noise occurring from the exploitation of railway vehicles moving at a speed of 200 km/h were analyzed. Within the conducted experimental research, the testing fields were appointed, measurement apparatus selected, and a methodology for conducting measurements was defined, including the assessment of noise on a curve and straight track for electric multiple units of the so-called Pendolino, an Alstom type ETR610 series ED25 train. The measurements were made using a microphone camera Bionic S-112 at a distance of 22 m from the track axis. As a result of the conducted experimental research, it was indicated that the noise resulting from vibrations arising at the wheel-rail contact (rolling noise) was the dominant source of sound.

A Survey of Railway Vehicle Dynamics Research

1974 ◽  
Vol 96 (2) ◽  
pp. 132-146 ◽  
Author(s):  
E. H. Law ◽  
N. K. Cooperrider
Keyword(s):  
Experimental Research ◽  
Vehicle Dynamics ◽  
Vehicle Suspension ◽  
Railway Vehicle ◽  
Railway Vehicles ◽  
Conflicting Objectives ◽  
Analytical Research

This paper presents a survey of the research concerned with the dynamics of single, conventional railway vehicles. Attention is concentrated on analytical research and only that experimental research that has been performed in conjunction with analytical efforts. The often conflicting objectives for railway vehicle suspension design and the research done to understand the design implications of these objectives are discussed.

A Novel Energy-Harvesting Active Radial Bogie for Railway Vehicles: Design, Simulation and HIL Test

2015 ◽  
Vol 733 ◽  
pp. 695-698
Author(s):  
Shu Shu Wang ◽  
Xiao Meng Shen ◽  
Xiao Jian Tu
Keyword(s):  
Energy Harvesting ◽  
Shock Absorber ◽  
Vertical Vibration ◽  
Vibration Energy ◽  
Railway Transportation ◽  
Railway Vehicles ◽  
Rail Vehicles ◽  
Simulation Results ◽  
Regenerative Shock Absorber ◽  
And Control

With the increasing development of railway transportation, the wheel-rail wearing problem is becoming more and more serious while the increasing of both the operating speed and loading weight of railway vehicles. Active radial bogie is one of the hotspots for research in the area of decreasing the wheel-rail wearing issues. Meanwhile, the energy dissipation problem has been restricting its development. This paper puts forward a novel energy-harvesting active radial bogie for rail vehicles. Making use of the hydraulic electromagnetic energy-regenerative shock absorber, the vertical vibration energy could be harvested while train is traveling. Detailed study and evaluation for this active radial bogie will be presented. The tests and simulation results prove the effectiveness of the proposed bogie mechanism and control.

scholarly journals PENGARUH PUTARAN TURBIN ANGIN SUMBU HORIZONTAL KOMBINASI PEMBERAT BOLA PEJAL

INFO-TEKNIK ◽  
2020 ◽  
Vol 21 (1) ◽  
pp. 115
Author(s):  
Firda Herlina ◽  
Mujiburrahman Mujiburrahman ◽  
Adi Asyari
Keyword(s):  
Wind Speed ◽  
Wind Turbine ◽  
Experimental Research ◽  
Research Method ◽  
Rotation Speed ◽  
Industrial Sector ◽  
Energy Sources ◽  
Solid Object ◽  
Wind Speeds ◽  
The Difference

Along with the increase in population is directly proportional to the need for energy sources both to support people's lives and the increase in the industrial sector in Indonesia. One of the most widely used sources of electricity is wind. Wind turbines are very sensitive to the wind speed they receive, as a result of fluctuations in wind speed that affect wind rotation speed. For this reason, the author has the idea to combine a wind turbine with a solid object turbine, it is hoped that the combination can produce more consistent rotation. The tool used is a wind turbine combined with solid blade ball weights 8, 9 and 10 and ballast of 10 gr, 20 gr and 30 gr for each blade and wind speeds of 3.3 m / s, 3.6 m / s and 3.9. m / s with the experimental research method, the experiment was carried out 3 times in each tool for ± 2 minutes which was expected to produce a combination of the variables studied in the form of a turbine with the maximum rotational speed and the most consistent rotation. From these experiments, it was found that a turbine with 10 blades, a weight of 10 gr at a wind speed of 3.9 m / s had the fastest rotation, namely 116.43 rpm while a 9 blade turbine with a weight of 30 gr at all three wind speeds was the turbine with the most consistent rotation, namely the difference between the top and bottom rotation is 2.53 rpm.

scholarly journals Analysis of maintenance management system conditions

2018 ◽  
Vol 19 (6) ◽  
pp. 712-717
Author(s):  
Magdalena Satora ◽  
Maciej Szkoda
Keyword(s):  
Management System ◽  
Maintenance Management ◽  
Railway Vehicles ◽  
Maintenance System ◽  
Rail Vehicles ◽  
Maintenance Process

The article analyzes issues related to the latest conditions for the maintenance of railway vehicles. Basic legal acts regulating the maintenance process on a European scale and in Polish conditions were discussed. Maintenance management system (MMS) and maintenance system documentation have been characterized. Examples of rail vehicles maintenance plans were also presented

scholarly journals Rolling Stock Manufacturers and New Rail Vehicles in Poland

2021 ◽  
Vol 65 (192) ◽  
pp. 121-152
Author(s):  
Marek Graff
Keyword(s):  
Production Process ◽  
The Other ◽  
Rolling Stock ◽  
Rail Vehicles ◽  
Other Hand ◽  
Multiple Units

Ten rolling stock manufacturers were operating in Poland in 2020. These were both domestic enterprises (Pesa, Newag) as well as branches of foreign concerns (Siemens, Bombardier, Alstom, Stadler). A similar division can be deemed conventional since the aforementioned enterprises employ mostly Polish specialists or managers – and work with Polish subcontractors. On the other hand, Polish manufacturers use mainly imported components in the production process. The range of the currently manufactured rolling stock is quite wide – from multiple units to locomotives with electric and diesel drives, adapted to run on both standard and broad gauge tracks. Polish plants also manufacture underground train-sets, mostly for export. New rolling stock orders placed by operators are carried out with the support of EU funding programmes. Keywords: rolling stock manufacturers, Poland, PKP

A framework to predict the airborne noise inside railway vehicles with application to rolling noise

2021 ◽  
Vol 179 ◽  
pp. 108064
Author(s):  
Hui Li ◽  
David Thompson ◽  
Giacomo Squicciarini ◽  
Xiaowan Liu ◽  
Martin Rissmann ◽  
...  
Keyword(s):  
Railway Vehicles ◽  
Airborne Noise ◽  
Rolling Noise

scholarly journals Polyurethane foam behaviour during impact

2018 ◽  
Vol 157 ◽  
pp. 02050 ◽  
Author(s):  
Stanislav Špirk ◽  
Michal Křížek ◽  
Štěpán Jeníček
Keyword(s):  
Mechanical Properties ◽  
Polyurethane Foam ◽  
Computer Simulations ◽  
Material Properties ◽  
Passive Safety ◽  
Railway Vehicles ◽  
Material Parameters ◽  
Material Data ◽  
Rail Vehicles ◽  
Relevant Material

This contribution is focused on the passive safety of the railway vehicles interiors. The passive safety has become a new area of the rail vehicles design. In the field of rail vehicles interior passive safety the computer simulations are most widely used. The computer simulations must be based on relevant material data. For some common materials (eg. steel, aluminium, etc.) the material data are ascertainable. The interiors of rail vehicles contain quite specific materials frequently. One of the material with more complicated mechanical properties is polyurethane foam (PUR). The aim of this paper is to present validation of material parameters for specific polyurethane foam by experiment. The material properties (for seat made from Elastoflex W 5662 covered with Holdsworth BHLH 31634) will be useful for further simulations.

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