Increased volumes of freight turnover in international transportation require the situational adaptation of the existing wagon fleet to the transportation of containers, which are commonly used at present. The research presented in this article substantiates the possibility of transporting containers in open wagons. It has been found that taking into account the possible displacements of containers in the body, the stresses at the operating modes can be twice as high as the permissible ones if an open wagon is part of the combined train. In this regard, it is proposed that a detachable multifunctional module for securing containers in the open wagon body be used. The detachable module is fixed through the fitting stops, either stationary or hinged, in the body. The rationale for the choice of the detachable module profile, as well as the results of its strength calculation, is given. The strength of the open wagon body during container transportation has been studied taking into account the proposed fastening diagram. The results of the calculations have shown that the maximum stresses in the body do not exceed permissible values. The results of the study will contribute to improvement in the efficiency of container transportation and the transport industry as a whole. Also, these results may be useful developments for designing modular vehicles.

In current hectic times, people should be able to slow down and diversify their free time. Therefore, the contribution of the amusement industry should not be negligible but, on the contrary, should be seen as something where whole families can seek respite from ordinary worries and problems. For this reason, the presented paper was written, which represents an intermediate step in the design of an amusement facility suitable for amusement parks that respects the normative requirements. Technical standardization represents a set of rules, characterizations, guidelines, and results of activities necessary for mutual understanding when solving technical problems in production. Adherence to standards is essential when launching a product on the market. The main standard indicating the full functioning of an amusement device is STN EN 13814. Its analysis and the resulting technical specifications of the proposed equipment are the chief objectives of the paper.

The presented article is focused on analysis of running properties of a modified railway vehicle and its components due to a change of the powertrain and influence of the mutual effects in a wheel/rail contact. The modification of a vehicle consists in a change of a standard diesel-electric powertrain by a new powertrain, which includes as a source of power the hydrogen fuel cells. This modification represents a quite significant modification of a vehicle structure, mainly a change of mass and position of centre of gravity individual articles of a vehicle. The analysis of running properties is performed by means of simulation computations in a commercial simulation software Simpack. Simulation model of a vehicle is called as a multibody model. This model consists of rigid bodies, which are connected by flexible modelling elements. Simulation analyses are performed for an original vehicle and for vehicle with hydrogen fuel cells. There are analysed cases of running on two types of tracks. There is found oud based on the obtained results, that the modified vehicle with the hydrogen cells has similar force distribution in a wheel/rail contact, however, the axle load of the modified vehicle does not meet required criteria.

Koľajové vozidlá sú zložité mechanické systémy, ktoré pracujú v rôznych dynamických podmienkach, vrátane prechádzania oblúkov, prejazdu výhybiek a vplyvu nerovností na trati na koľajové vozidlá. Analýza týchto systémov musí byť presná a efektívna, aby sa zabezpečila ich bezpečná a spoľahlivá prevádzka. V poslednom čase rastie záujem o využívanie počítačových simulácií na štúdium dynamických vlastností a parametrov koľajových vozidiel. Konkrétne, implementácia poddajných telies v rámci simulácií systémov viacerých telies sa ukázala ako efektívna metóda na dostatočne presné zachytenie dynamických vlastností koľajových vozidiel [1-3].

The presented research is aimed at the derivation of a mathematical model of diesel-mechanical drivetrain of a rail vehicle. It is derived by means of the Lagrange’s equations of the second kind. The derived mathematical model allows to understand the essential principle of the derivation of the mathematical model of the diesel-mechanical drivetrain of a rail vehicle, an application of the numerical mathematical methods for the solving the equations of motion and for evaluation of the wanted outputs quantities, such as waveforms of revolutions and torques of shafts and others.