公开(公告)号：SG140580A1

公开(公告)日：2008-03-28

申请号：SG2007064132

申请日：2007-08-31

Applicant: UNITED TECHNOLOGIES CORP

Inventor： STAROSELSKY ALEXANDER ,  MARTIN THOMAS J ,  SIDWELL CARROLL V ,  OUYANG ZHONG ,  SMITH KEVIN D

Abstract: INVERSE THERMAL ACOUSTIC IMAGING PART INSPECTION A method of identifying a flaw in a part is provided that includes vibrating a part to induce heat. The heat originates in any flaws in the part. A thermal image is obtained using, for example, an infrared camera. A mathematical representation of the thermophysics, such as the heat conduction or thermal energy equations using the boundary element method or finite element method is used to identify a source and an intensity of the heat identified with the thermal image. Using the source and intensity of the heat, flaw characteristics for the part can be determined. The method is employed using an inspection system that includes a vibration device for vibrating the part. An imaging device, such as an infrared camera, measures temperature on the surface of the part. An assumption is made or additional measurements are taken to obtain values for surface flux or surface heat transfer coefficients. A processor communicates with the imaging device for receiving the surface temperature. The processor includes computer memory having part characteristics and mathematical equations. The processor uses the measured surface temperature, assumed or measured heat flux or heat transfer coefficients, part characteristics and mathematical equations to determine the flaw characteristics in the part.

公开(公告)号：DE602007014128D1

公开(公告)日：2011-06-09

申请号：DE602007014128

申请日：2007-02-02

Applicant: UNITED TECHNOLOGIES CORP

Inventor： STAROSELSKY ALEXANDER ,  SIDWELL CARROLL V

IPC: C30B11/00 ,  C30B29/52 ,  C30B33/00 ,  F01D5/28

公开(公告)号：SG134308A1

公开(公告)日：2007-08-29

申请号：SG2007007297

申请日：2007-01-31

Applicant: UNITED TECHNOLOGIES CORP

Inventor： STAROSELSKY ALEXANDER ,  SIDWELL CARROLL V

Abstract: A method for improving the strength, creep and failure resistance of a single crystal component, such as a turbine engine component, is provided. The method comprises the steps of forming a component, such as a turbine engine component, having a single crystal microstructure with a plurality of y' cuboids forming a limited amount of oriented platens in a particular direction prior to the component being placed into service to delay coalescence of the platens relative to the applied load.

公开(公告)号：NZ536658A

公开(公告)日：2006-07-28

申请号：NZ53665804

申请日：2004-11-18

Applicant: MASSACHUSETTS INST TECHNOLOGY ,  UNITED TECHNOLOGIES CORP

Inventor： SIDWELL CARROLL V ,  DARMOFAL DAVID L

IPC: F01D25/00 ,  F01D5/18 ,  F02C7/00 ,  F01D5/00 ,  F01D5/08

Abstract: Method for assembling into turbine sets turbine components having internal cooling passages. The turbine components are classified according to flow capability through the internal cooling passages and turbine sets are assembled in which the turbine components have the same flow capability classification.