Summary
We present two algorithms to compute the eigenvalues of a clam of closed loop linear hyperbolic contrai systems describing the vibrations of a linear structure made up of interconnected beams. They are based on an extension to analytic functions of the H. Kuhn’s method ta find the zeros of polynomials. These algorithms are very selective and accurate even for eigenvalues of large moduli. In fact this method is particularily well suited for asymptetic studies of the spectrum. Equivalent results by a finite element method vould require an extremely fine finite element approximation which vould result in unusually large matrices and unmanageable computations.