Počet záznamov: 1
Predikcia modulu pružnosti v ohybe akustickými charakteristikami
SYS 0071574 LBL 00000naa^^22^^^^^^^^450 005 20190402083759.6 100 $a 20140327a m y0sloy0103 ba 101 0-
$a slo $d eng 102 $a SK 200 1-
$a Predikcia modulu pružnosti v ohybe akustickými charakteristikami $d Prediction of modulus of elasticity using acoustic charakteristics $f Rastislav Lagaňa, Alena Rohanová 215 $c Obr., tab. 320 $a Lit. 330 $a Nondestructive methods based on different principles are used for prediction of quality parameters of structural timber. Bending modulus of elasticity is mostly evaluated by dynamic acoustic methods (ultrasound, vibrational) that define dynamic moduli Edyn,ult and Edyn,res.. This study deals with structural timber of spruce (Picea abies, Karst.) from locality Slovakia. Both, entire set of data (n=101) and individual regions (mid SK and north SK) were analyzed. The entire set of data confirmed high correlation between bending modulus of elasticity and dynamic modulus (Edyn,ult and Edyn,res). The bending modulus of elasticity can be predicted using regression parameters of both dynamic methods. Based on statistical characteristics, a vibrational method seems to be more suitable. An effect of region on correlation between bending modulus of elasticity and dynamic modulus was not confirmed. Experimental results showed that vibrational dynamic method performed closer prediction of bending modulus of elasticity than ultrasound method, even though the differences were not significant. 330 $a Cieľom tejto práce bolo overiť vhodnosť využitia akustických metód na predikciu modulu pružnosti v ohybe konštrukčného dreva zo Slovenska, pričom pri metódach diferencovane hodnotiť aj vplyv regiónu. 463 -1
$1 001 sldk_un_cat*0071542 $1 011 $a 1336-3824 $1 200 1 $a Acta Facultatis Xylologiae Zvolen $e vedecký časopis Drevárskej fakulty $v Roč. 56, č. 1 (2014), s. 5-12 $1 210 $a Zvolen $c Technická univerzita vo Zvolene $d 2014 610 1-
$9 sldk_un_auth*h012853 $a konštrukčné drevo $X structural timber 610 1-
$9 sldk_un_auth*h010014 $a modul pružnosti $X modulus of elasticity 610 1-
$9 sldk_un_auth*h010888 $a modul pružnosti v ohybe $X modulus of elasticity in bending 610 1-
$9 sldk_un_auth*0030744 $a deštruktívne ohybové testy $X destructive bending tests 610 1-
$9 sldk_un_auth*h014470 $a ultrazvukové metódy $X ultrasonic methods 610 1-
$9 sldk_un_auth*0011956 $a vibračná diagnostika $X vibration diagnostics 700 -1
$3 sldk_un_auth*p0021608 $a Lagaňa $b Rastislav $f 1974- $p TUZDFND $4 070 701 -1
$3 sldk_un_auth*p0000279 $a Rohanová $b Alena $f 1953- $p TUZDFNDV $4 070 $T Katedra nábytku a drevárskych výrobkov 801 -0
$a SK $b ZV001 $c 20140327 $g AACR2 856 4-
$u https://df.tuzvo.sk/sites/default/files/14-1-56-lagana-rohanova_3.pdf
Počet záznamov: 1