Dynamic parameters of the free vibrations of various wood species

Barbara Misztal

doi:10.5277/arc120113

Abstract

This paper describes the dynamic testing of beams made of two wood species: oak tree and pine tree. The testing was conducted on both dry and wet models. For formal reasons, this paper depicts the testing of models in the air-dried state of oak and pine wood.     The article presents a method of choosing a type of wood for constructing wooden structures on the basis of the normal mode frequency and damping of vibrations. The application of normal mode measurements for determining mechanical properties of elements was suggested.