Random perturbations effects on the stability of Tension Leg Platforms in offshore engineering and of other large structures

We analyze the stability of Tension Leg Platform offshore structures, as well as of some large flexible space structures, under random perturbations of their main parameters. An asymptotic theory and numerical methods are used as tools to study moment stability, and numerical simulations of the Monte Carlo type are also conducted for both purposes, of checking the results of the asymptotic theory and to handle cases when such a theory cannot be applied.