Rotor burst protection program: Experimentation to provide guidelines for the design of turbine rotor burst fragment containment rings

Abstract : The program objective is to develop guidelines for the design of optimum weight containment rings for turbine engine rotor fragments. Rotor/disk and blade containment experiments were conducted using strain gage instrumented containment rings. The tests were conducted to study, by means of high-speed photography and strain measurements, the interaction that takes place between the rotor fragments and containment ring during the containment process. The recorded information was supplied for use in the TEJ-2 or CIVM JET-4B computer programs which are being developed for use in the optimum design of containment/ deflection devices. The characterization of blade and rotor fragment behavior and containment ring response was made possible by photographing blades and rotors intentionally modified to fail at their design operating speed.