Počet záznamů: 1
Response of Wood Bars to Non-Destructive Impact
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SYSNO ASEP 0463421 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Response of Wood Bars to Non-Destructive Impact Tvůrce(i) Trnka, Jan (UT-L) RID
Buchar, J. (CZ)
Stoklasová, Pavla (UT-L) RID, ORCID
Nedomová, Š. (CZ)Celkový počet autorů 4 Zdroj.dok. Experimental Techniques. - : Springer - ISSN 0732-8818
Roč. 40, č. 5 (2016), s. 1387-1395Poč.str. 9 s. Forma vydání Tištěná - P Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova fourier transform ; impact force ; laser vibrometer ; surface wave velocity Vědní obor RIV BI - Akustika a kmity Institucionální podpora UT-L - RVO:61388998 UT WOS 000388818400004 EID SCOPUS 84987850982 DOI 10.1007/s40799-016-0139-0 Anotace The wood bars with rectangular cross section (25 × 25 mm, 300 mm in length) were impacted by an aluminum cylindrical bar in R and T directions. The wood response to this loading was characterized by the displacement of the surface of the bar. The time history of this response has been measured by a double channel laser vibrometer. The analysis of response functions was performed both in the time and frequency domain. The bar response to the impact is described using the transfer function. The knowledge of this function enables to predict the surface displacement at the given point for various forces. It is shown that the history of the surface displacement in direction of its propagation exhibits the same qualitative features independently of the kind of wood in the direction of impact and of the position of wave detection. Experiments were performed on bars made from five tree species: Pinus sylvestris L., Picea abies (L.) Karst., Fagus sylvatica, Quercus robur and Populus nigra. Pracoviště Ústav termomechaniky Kontakt Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823 Rok sběru 2017
Počet záznamů: 1