2 research outputs found
System for Exhausting of Combustion Gases over the Sintering Grate
Tato bakalářská práce se zabĂ˝vá konstrukÄŤnĂm Ĺ™ešenĂm systĂ©mu pro odsávánĂ spalin nad spĂ©kacĂm roštem. Prvnà část je vÄ›nována obecnĂ©mu pojednánĂ o spĂ©kacĂm roštu, o jeho ÄŤinnosti a o jednotlivĂ˝ch modifikacĂch. Dalšà část se zabĂ˝vá problematikou, která obnášà umĂstÄ›nĂ krytu nad spĂ©kacĂ rošt. V poslednà části je proveden návrh optimálnĂho Ĺ™ešenĂ systĂ©mu pro odsávánĂ spalin a popsány dĹŻvody, kterĂ© vedly k jeho vĂ˝bÄ›ru.This bachelor thesis deals with solution for waste gases exhaustion system above the sinter grate. The first part is dedicated to the general treatise about sinter grate, its operations and individual modifications. Another part looks into issues covering placing of the cover above the sinter grate. Proposal of optimal solution of the waste gases exhaustion system is done in last part, where are described reasons, which lead to its choice.
Analyse der Anregungsarten zur DurchfĂĽhrung der Operational Modal Analysis an Werkzeugmachinen
Diplomová práce se zabĂ˝vá vlivem šumu na urÄŤovánĂ vlastnĂch frekvencĂ pro obrábÄ›cĂ stroj pomocĂ provoznĂ modálnĂ analĂ˝zy. Pro zadanĂ˝ obrábÄ›cĂ stroj je provedena provoznĂ modálnĂ analĂ˝za pro metodou Data-Driven a Covariance-Driven pro vĂce variant buzenĂ. Z vĂ˝sledkĹŻ jsou sestaveny stabilizaÄŤnĂ diagramy, kterĂ© sloužà pro urÄŤenĂ vlastnĂch frekvencĂ. VĂ˝sledky pro jednotlivĂ© varianty buzenĂ jsou mezi sebou porovnány a je urÄŤen vliv šumu na vĂ˝sledky.The aim of this work is to determine the influence of noise on determination of own frequen-cies for machine tool by operational modal analysis. For the assigned machine tool operation-al analysis is performed using Data-Driven and Covariance-Driven method for multiple exci-tation variants. Based on the results are created stabilization diagrams used to determine ma-chine tool own frequencies. The results for each excitation variant are compared to each oth-er and the effect of noise influence on the results is determined.