ACCURACY ESTIMATES AND CORRECTION OF APPROXIMATION OF GREENS FREQUENCY FUNCTIONS FOR ELASTIC RODS AND BEAMS

The expansion of Greenʹs function for rods and beams into functional series has a poor convergence. For this reason, it is necessary to introduce some static and dynamic corrections into the truncated series of this function. These corrections permit one to determine accurately a working frequency range for approximate Greenʹs function. In this range, Greenʹs function error is less than the prescribed tolerance.