Following the depletion of land natural resources (oil, gas, minerals etc.), methods of obtaining them from beds of seas and oceans are gaining more and more importance. However, exploiting undersea resources poses a number of challenging technical problems pertaining to their extraction, transport and processing in a specific, inhospitable environment. Important groups of machines used in offshore engineering are cranes applied to reloading and assembly works and specialized devices for laying pipes which transport oil and gas. A characteristic feature of their working conditions is sea waves causing significant movement of the base on which offshore structures are installed. This is a phenomenon which must be taken into consideration in design of such machines.
KeywordsMultibody System Large Deflection Offshore Structure Flexible Link Offshore Engineering
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