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Supporting marine environment research by modeling

Jakacki Jaromir, Przyborska Anna, Darecki Mirosław

TASK Quarterly : scientific bulletin of Academic Computer Centre in Gdansk

2018

Vol. 22, No 4

351--363

The Centre of Informatics – Tri-City Academic Supercomputer and Network (CI TASK) was founded over twenty-five years ago, in 1994. It was a very important initiative undertaken as a result of rapid development of computer technology and one of its main goals was to integrate the computer resources of scientific communities in the Tri-City. CI TASKstarted to provide computing resources and the first steps in the world of high-performance computing must have been proved to be a significant challenge. The scientific community of the Institute of Oceanology has been cooperating with that computing centre since the very beginning.Currently, CI TASKprovides the widest set of tools and hardware that can be used for ocean modeling purposes. The main goal of this work is expression of appreciation and gratitude for the people who have contributed to the developing of this institution and helped in the work using their tools.CI TASK has been helpful in a great number of past and present tasks, however, in this paper we would like to present only three results of our work – a coupled ice-ocean model of the Baltic Sea, assessment of contamination for potential leak age from chemical munition dumped after the Second World War, and the currently operating SatBaltic system.

Coupled model of the spindle and machine tool frame

Kolar P., Sulitka M.

Journal of Machine Engineering

2009

Vol. 9, No. 2

32--44

Influence of the machine frame on the dynamic properties of spindle and tool is investigated using an example of a real machine tool. Model of the whole mechanical system is created as a coupled system of the tool, spindle and machine frame single submodels. Experimental verification of the model has shown a good match of the system critical frequencies and compliances. It has been proved that properties of the machine frame limit the dynamic properties at the tool tip especially in the case, if a compact tool is used.