WIDE BANDSAW BLADE UNDER CUTTING CONDITIONS .3. STABILITY OF A PLATE MOVING IN ITS PLANE WHILE SUBJECTED TO NONCONSERVATIVE CUTTING FORCES

This study provides yet another possible mechanism for instability of bandsaw blades during sawing, namely dynamic instability of a moving p late when subjected to non-conservative tangential edge loading. In pr evious publications, the effect of non-conservative edge loading has b een neglected; only the divergent buckling and the parametric instabil ity have been considered as causes of unstable bandsaw blade motion. H owever, the non-conservative loading due to sawing can excite a flutte r-type instability, similar to flutter in aeroplane wings. The extende d Galerkin method is used to discretize the equation of motion, and a non-self-adjoint eigenvalue solver is employed to find the solutions. (C) 1995 Academic Press Limited