Integrally bladed disk life cycle management utilizing vibratory DNA

A method comprising:

• measuring vibration measurements, using an optical point vibration measurement device, for each of a plurality of integrally bladed disks (IBDs) of a design in a fleet of rotary machines based on driving each respective one of the IBDs using a set of environmental conditions;
• determining, based on a EzID product, values for a plurality of non-environmental parameters of a reduced order model for a design of the IBDs, which values cause the reduced order model to best fit the vibration measurements for each respective one of the IBDs wherein the non-environmental parameters include nodal diameter and blade frequency;
• storing the values of nodal diameter and blade frequency in a database using less than 10 MB of data for up to 20 modes on up to 120 blades for each of the respective IBDs;
• associating physical state information for at least one of the IBDs with the respective stored values of nodal diameter and blade frequency;
• and
• performing a fleet maintenance activity based on the stored values of nodal diameter and blade frequency and physical state information, by performing at least one of removing the IBD from service in a turbine engine, returning the IBD to service in a turbine engine, performing a mechanical repair of the IBD, mechanically modifying the IBD, modifying a manufacturing process used to produce the IBD, modifying a physical operating condition of a rotary machine in which the IBD is operating to modify stresses imposed on the IBD, or performing a maintenance activity on a fleet of IBDs.

A method comprising:

• measuring vibration measurements, using an optical point vibration measurement device, for each of a plurality of integrally bladed disks (IBDs) in a fleet of rotary machines based on driving each respective one of the IBDs using a set of environmental conditions;
• determining, based on a EzID product, corresponding values of a plurality of non-environmental parameters of a reduced order model for a design of the IBDs, which values cause the reduced order model to best fit—the vibration measurements for each respective one of the IBDs;
• determining health of each respective one of the IBDs based upon the corresponding values of the plurality of non-environmental parameters;
• and,
• based on the health of each respective one of the IBDs, performing at least one of removing the IBD from service in a turbine engine, returning the IBD to service in a turbine engine, performing a mechanical repair of the IBD, mechanically modifying the IBD, modifying a manufacturing process used to produce the IBD, modifying a physical operating condition of a rotary machine in which the IBD is operating to modify stresses imposed on the IBD, or performing a maintenance activity on a fleet of IBDs.