Anzeige
Erschienen in:
01.11.2012 | Originals Originalarbeiten
Determination of settings in combined strength, stiffness and density grading of timber
Erschienen in: European Journal of Wood and Wood Products | Ausgabe 6/2012
EinloggenAktivieren Sie unsere intelligente Suche, um passende Fachinhalte oder Patente zu finden.
Wählen Sie Textabschnitte aus um mit Künstlicher Intelligenz passenden Patente zu finden. powered by
Markieren Sie Textabschnitte, um KI-gestützt weitere passende Inhalte zu finden. powered by
Abstract
A new method is presented for the determination of settings in machine strength grading of timber. The method is compared with the European standard for “machine control” method. Numerical examples are shown based on large samples of spruce in bending from all over Europe. The proposed method gives similar values of grade determining properties and increased yields when a single indicating property is measured and timber is sorted to three grades. The method is based on strength, stiffness and density as grade determining parameters. Prediction limits on 10 % probability level are determined for all grade determining properties, and all three thresholds are met. The use of two indicating properties, one with good correlation with density, results in economically better grading results and more reliable quality of timber.