WIDE BANDSAW BLADE UNDER CUTTING CONDITIONS .2. STABILITY OF A PLATE MOVING IN ITS PLANE WHILE SUBJECTED TO PARAMETRIC-EXCITATION

Dynamic instability of a moving plate subjected to parametric in-plane forces is analyzed. The extended Galerkin method is used to discretiz e the differential equation of motion, and the harmonic balance method is employed for investigating the instability regions of the moving p late. Two cases of parametric excitation are considered: fluctuating t ension, and fluctuating tangential cutting force. Only simple parametr ic resonances are possible in the case of fluctuating tension, while i nteresting combination resonances are excited by the fluctuating tange ntial cutting force. (C) 1995 Academic Press Limited