General Electric Company

John Sherrill Carpenter

Andrew Scott Kessie

Daniel John Maggard

Oscar Ernesto Escobar

Paul Anthony Maletta

Kyle Dean Blomgren

Tomas Eduardo Elias

Brian Russell Clements

Frederick Joseph Zegarski

A method of evaluating a part is characterized by obtaining data representing a distress rank model (DRM) and a cumulative damage model (CDM) for the part. Based on the data, the method ascertains a DRM value for the part and a CDM value for the part. The method determines whether the DRM value is at or above a predetermined DRM threshold and whether a CDM value is at or above a predetermined CDM threshold. If either the DRM value or the CDM value is at or above at least one respective threshold, an action related to the part is generated.

Method of evaluating a part

A low pressure turbine shroud includes a backplate and abradable material attached to said backplate. The backplate includes an upstream end, a downstream end, and a body extending between the upstream end and the downstream end. The body includes a first portion and a second portion. The body first portion has a first thickness greater than a body second portion second thickness. The abradable material attaches to an inner surface of the backplate and includes at least one segment having a thickness greater than remaining segments of abradable material.

Methods and apparatus for minimizing thermal gradients within turbine shrouds

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Liberty Township, OH, United States of America

John Sherrill Carpenter