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Vliv opracování a máčení na frekvenčně-rezonanční vlastnosti dřevěných nosníků reálných rozměrů

This paper examines the influence of processing on the acoustic properties of the wooden beams. Hewn beams and sawn beams were examined. Hewn beams were divided into three groups at two moisture content levels. Timber properties were determined by measuring the resonant frequencies. First part of the text is focused on the oscillatory motion and behavior of vibrating solids. Furthermore, there is a description of acoustic properties of wood and the possibility of using these properties when determining the mechanical properties. The next chapter is devoted to non-destructive testing of wood, which often uses acoustic methods.

Identiferoai:union.ndltd.org:nusl.cz/oai:invenio.nusl.cz:430999
Date January 2017
CreatorsJanda, Martin
Source SetsCzech ETDs
LanguageCzech
Detected LanguageEnglish
Typeinfo:eu-repo/semantics/masterThesis
Rightsinfo:eu-repo/semantics/restrictedAccess

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