INFLUENCE OF ROTATORY INERTIA, SHEAR DEFORMATION AND SUPPORT CONDITION ON NATURAL FREQUENCIES OF WOODEN BEAMS

被引：36

作者：

CHUI, YH

SMITH, I

机构：

[1] Department of Forest Engineering, University of New Brunswick, Fredericton, E3B 5A3, New Brunswick

来源：

WOOD SCIENCE AND TECHNOLOGY | 1990年 / 24卷 / 03期

关键词：

D O I：

10.1007/BF01153557

中图分类号：

S7 [林业];

学科分类号：

0829 ; 0907 ;

摘要：

The degree of influence of rotatory inertia and shear deformation on natural frequency determinations is discussed. It is found that for material such as wood, which has a relatively high ratio of bending modulus to shear modulus, these effects need to be taken into account even for supposedly 'slender' beams. The discussion covers the four most common types of support condition, namely simply supported, free-free, clamped-free and clamped-clamped ends. As a perfectly rigid clamped condition can never be achieved in practice, especially for relatively 'soft' material like wood, consideration is extended to also include partially-clamped beams. © 1990 Springer-Verlag.

引用

页码：233 / 245

页数：13