Title: Thermal deformations of milling center
Authors: Marek, Václav
Citation: HOŘEJŠÍ, Petr, ed.; VANĚK, Václav, ed. Soutěžní přehlídka studentských a doktorských prací FST 2019: sborník příspěvků: 25. dubna 2019. 1. vyd. Plzeň: Západočeská univerzita v Plzni, 2019. VI, 206 s. ISBN 978-80-261-0860-3.
Issue Date: 2019
Publisher: Západočeská univerzita v Plzni
Document type: konferenční příspěvek
conferenceObject
URI: http://hdl.handle.net/11025/34387
ISBN: 978-80-261-0860-3
Keywords: tepelná deformace;výpočet dynamiky tekutin;metoda konečných prvků;metoda makro prvků
Keywords in different language: thermal deformation;computed fluid dynamic;final element method;macro element method
Abstract in different language: The article is focused on the thermal behaviour of a spindle of a milling centre. This is a typical problem of high precision machines, which produce heat as a negative implication of the produce activity. Thermal loading influents productivity and precision of a milling centre. Thermal transfer simulations, computed fluid dynamic solutions and finite element methods in general are vital sources of information about behaviour of machine parts influenced by heat loading. All these methods have common disadvantages, which include the need for a skilled engineer, hardware and software. In general, it causes high cost of a computation. The reduction of costs is solved by a new tool, which uses simple macro-elements with predefined, parametric properties. Reduction of thermal displacement is also a crucial task. Sensitivity study, based on complex case study is able to identify features with significant influence to overall deformation. Complex case consists of detail subcase analysis. Identified parts require modifications for the decreasing of deformations. Results are compared with the new productive computation method based on macro-models. Combination of methods defines productive methodology, which lead to fast prediction and accurate simulation.
Appears in Collections:Soutěžní přehlídka studentských a doktorských prací FST 2019
Soutěžní přehlídka studentských a doktorských prací FST 2019

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