Journal ArticleDOI
Rail Vehicles Brake Components Test Bench Utilisation
Juraj Gerlici,Tomáš Lack +1 more
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TLDR
In this paper, the application of the silent composite brake blocks of type K affords the adaptation of the braking system of the vehicle, what is cost intensive, and for existing vehicles solutions having the same friction coefficient as the cast iron brake shoes were requested (LL-Brake).Abstract:
Reduction of noise due to rolling contact of wheel and rail for fright cars is one of the principal tasks of the European railways to be solved. Experts of railways, industries and universities were engaged during the last about ten years to search for technical solutions. An important noise reduction of fright cars can be achieved by replacing the cast iron brake shoes by composite brake shoes. Doing that, two directions have been taken into consideration. This is due to the fact, that at that time most composite brake shoes were based on friction coefficients were far away from that ones of the cast iron brake shoes. Applying such friction materials on existing vehicles would have as a consequence the change of braking forces acting on the wheels. These types of brake shoes (K-block) show a friction coefficient which is higher than that one of cast iron. As a consequence the application of the silent composite brake blocks of type K affords the adaptation of the braking system of the vehicle, what is cost intensive. For these reason, the application of K-brake block was proposed for new built vehicles. For existing vehicles solutions having the same friction coefficient as the cast iron brake shoes were requested (LL-Brake doing in this way, the modification of the braking equipment of existing fright cars could be avoided.read more
Citations
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Design of a new railway wagon for intermodal transport with the adaptable loading platform
Journal ArticleDOI
Vibration Analysis of a Coach with the Wheel-flat Due to Suspension Parameters Changes☆
TL;DR: In this paper, the authors focused on the vibration analysis of the coach, which wheel is damaged by the wheel-flat, and the assessment of selected measured parameters of a rail vehicle with wheel flat.
Journal ArticleDOI
Structural Analysis of a Modified Freight Wagon Bogie Frame
TL;DR: In this article, the authors present results of selected load cases for the modified freight wagon bogie frame and calculate the assessment of stresses of the frame structure under exceptional load using the FE method.
Journal ArticleDOI
Multibody System of a Rail Vehicle Bogie with a Flexible Body
TL;DR: This paper presents inclusion of a flexible body into a multibody system of a rail vehicle bogie and calculates parameters of the fright wagon correspo nd to a Y25 bogie.
References
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Journal ArticleDOI
Railway wheel and rail head profiles development based on the geometric characteristics shapes
Juraj Gerlici,Tomáš Lack +1 more
TL;DR: In this paper, the authors proposed a method for the development of railway wheel and rail head profiles on the basis of the intended shape of wheelset/track contact geometric characteristics, which can be after modification used for a design of rail profile in accordance to the wheel profile.
Journal ArticleDOI
Contact geometry influence on the rail/wheel surface stress distribution
Juraj Gerlici,Tomáš Lack +1 more
TL;DR: In this paper, the authors proposed a method for the railway wheel profile development on the base of the intended shape of wheelset / track contact geometric characteristics, which can be after modification used for a design of rail profile in accordance to the wheel profile.
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