... are crucial in determining the conditions for dynamic instabilities. A simple analytical methodology based on the perturbation theory is developed that provides a first-cut analysis to determine if a single recycle system is adequate for a given compression system. The concept of an inertia number...

... survey of the rotordynamic behavior of labyrinths. seals (stoppers) gas turbines rotors flow simulation perturbation theory stability elasticity pressure 04 June 2001 01 Dec 2000 01 Mar 2001 27 12 2002 Contributed by the International Gas Turbine Institute...

... modelling parameter estimation probability perturbation theory The high sensitivity of both the free and forced responses of bladed disks to mistuning, i.e., to the existence of small blade-to-blade differences in their structural properties that arise for example during the manufacturing process...