1st ICAI 2020

International Conference on Automotive Industry 2020

Mladá Boleslav, Czech Republic

Brief History of Cooperation between the Department of Machine Parts and Mechanisms VŠB ‒ TU Ostrava and ŠKODA AUTO a.s. Miloš Němček 1 , Šárka Hurníková 2 VŠB-Technical University Ostrava 1,2 Faculty of Mechanical Engineering, Department of Machine Parts and Mechanisms 17. listopadu 15/2172, Ostrava-Poruba, 708 33 Czech Republic e-mail: milos.nemcek@vsb.cz 1 ; sarka.hurnikova@vsb.cz ,2 Abstract The article deals with the history of cooperation between the Department of Machine Parts and Mechanisms of VŠB - TU Ostrava and ŠKODA AUTO a.s. It is not a precise statistical overview, but only a look at the date of the period of mutual relations. It is discussing only a period after 1989 essentially. Formerly there were only some contacts and smaller tasks. The article describes the main areas of cooperation after 1989. Apart from the most important areas for us - gearboxes, there were also other things. These include calculations and experiments in solving the problem of rolling bearing bearings. Interesting ones were the calculations and related experiments that had resulted from the engine suspension failure. Much work has been proven during testing on test circuits, but also in real operation. Tests provided a wealth of useful data for critical parts solutions, as well as databases for no load spectra. Finally, other forms of cooperation are mentioned. Keywords: cooperation, history, ŠKODA AUTO, Technical University Ostrava JEL Classification: O32, O33, O39 1. Beginnings of cooperation The first forms of cooperation existed before 1989. But these were minor tasks and the outputs were not preserved. Significant contacts began only after 1989. In 1990, Zdeněk Dejl became the head of the department. Due to his extensive experience in the field of measurement and diagnostics of machine elements, the first post- revolutionary contacts with the automaker took place in these areas. Prof. Dejl made the first approximate measurement of shaft deformations for Felicia gearbox. At that time, however, most of the department’s activities were directed to Tatra Kopřivnice. Tatra at that time had problems with noise (trying to penetrate the western markets) and our workplace was the first in our country, which learned to perform accurate measurements inside the loaded gearbox. Outputs of the measurements were further applied in the design of tooth shape modifications. This led to a reduction in transmission noise. But it was not enough. The next step was the application of so- called HCR gearing. That was the first time with our country. But even in Europe, Tatra and we were among the first with practical use of HCR gears. The gearbox and the entire measuring device were large and heavy. The advantage, however, was the relatively large amount of space for implementing sensors on individual wheels. This

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