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2 2019

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Nowe rozwiązania środków transportu na przykładzie kolei niskociśnieniowej

Rydzek Marcin

Autobusy : technika, eksploatacja, systemy transportowe

2019

R. 20, nr 6

116--119

W pracy przedstawiono przyszłościowy środek lokomocji w postaci technologii kolei niskociśnieniowej - Hyperloop. Opisano stan obecny wdrażanej technologii oraz odniesiono się do problemów związanych prędkościami w tunelu próżniowym, gdzie jednym z podstawowych jest granica Kantrowitza. Montaż turbosprężarek ma temu zapobiec, lecz taka strategia jest zbyt kosztowna. Przedstawiona technologia może stanowić alternatywę dla obecnych środków transportu.

The paper presents a forward-looking means of transport in the form of hyperloop technology. The paper describe current state of the implemented technology and refers to the problems related to speeds in a vacuum tunnel. The basic problem related to speed is the limit of Kantrowitz. The presented technology can be an alternative to the current means of transport.

Modeling and control of a simplified high-speed vehicle moving in reduced-pressure conditions

Strawa Natalia, Malczyk Paweł

Archive of Mechanical Engineering

2019

Vol. LXVI, nr 3

355--377

In times of rapidly progressing globalization, the possibility of fast long-distance travel between high traffic cities has become an extremely important issue. Currently, available transportation systems have numerous limitations, therefore, the idea of a high-speed transportation system moving in reduced-pressure conditions has emerged recently. This paper presents an approach to the modelling and simulation of the dynamic behaviour of a simplified high-speed vehicle that hovers over the track as a magnetically levitated system. The developed model is used for control system design. The purpose of passive and active suspension discussed in the text is to improve both the performance and stability of the vehicle as well as ride comfort of passengers travelling in a compartment. Comparative numerical studies are performed and the results of the simulations are reported in the paper with the intent to demonstrate the benefits of the approach employed here.