Refining the models of performing service tests of upgraded locomotives

Recently, we cannot imagine investigation and analysing mechanical properties of railway vehicles without using state-of-art tools. They are implemented in whole process of design, analysing, verification, testing and optimising of railway vehicles. Such an approach saves time for development, production costs and finds application across whole spectrum of produced types of railway vehicles. In order that the approach based on simulation computations can reliably simulate the reality, a virtual model of a railway vehicle has to take into account as many factors as important. When we investigate behaviour of a railway vehicle in terms of dynamics, we used the multibody approach for creating its computational model. The goal of this article is evaluation of output quantities of a passenger car from the dynamics point of view. The main objective is assessment of selected values for rigid and flexible models of a track. There are evaluated quantities, which belong to main assessed outputs for investigation of dynamic properties of a passenger car. There are values of vertical forces in the wheel/rail contact as the indicator of dynamic load of a railway track as well as the bodies of a railway vehicle.

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Modification of a design of a wheel-tracked chassis of a mine clearing machine

BlatnickĂ¹,

DiĹžo²,

HaruĹĄinec³

2020

Manufacturing Technology

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This article is aimed at design of a support and a tension mechanism to be mounted on a wheel-tracked chassis of a mine clearing machine. The subject machine serves to detect and disposal mines in terrain. The main advantage of this machine is the possibility to use it from the safe distance thanks a remote control. The wheel-tracked chassis mounted on the machine ensures that the machine is able to overcome extreme obstacles of a terrain. The solved design of the wheel-tracked chassis can be modifying to move using just wheels for better driving properties on metalled roads. Current design of the wheeltracked chassis goes out from the older technical solution, which has been designed for a four-wheeled machine. The latest version of the chassis is designed for a six-wheeled machine. Application of an original structure of the chassis meets problems consisted in formation of cracks in tracks structure therefore the current structure of tracks has to be modified in order to meet all requirements in term of strength and long-term operation. At the same time, two design of a tension mechanism are presented. A tension mechanism is additional device, which will be mounted to the chassis and it will ensure the optimal position of tracks in every load case.

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Refining the models of performing service tests of upgraded locomotives

Cited by 4 publications

References 0 publications

Systems Approach to the Organization of Locomotive Maintenance on Ukraine Railways

Systems Approach to the Organization of Locomotive Maintenance on Ukraine Railways

Assessment of dynamic properties of a carriage using multibody simulation considering rigid and flexible tracks

Modification of a design of a wheel-tracked chassis of a mine clearing machine

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