Computer Aided Feature Extraction, Classification and Acceptance Processing ofDigital NDE Data

摘要

As part of the Advanced Launch System technology development effort begun in1989, the Air Force initialized a program to automate, to the extent possible, the processing of NDE of NDE data from the inspection of solid rocket motors during fabrication. The computerized system, called the Automated NDE Data Evaluation System or ANDES, was developed under contract to Martin Marietta, now Lockheed Martin. The ANDES system is generic in structure and is highly tailorable. The system can be configured to process digital or digitized data from any source, to process data from a single or from multiple acquisition systems, and to function as a single stand-alone system or in a multiple workstation distributed network. The system can maintain multiple configurations from which the user can select. In large measure, a configuration is defined through the system's user interface and is stored in the system's data base to be recalled by the user at any time. Three operational systems are currently in use. These systems are located at Hill AFB in Ogden, UT, Kelly AFB in San Antonio, TX, and the Phillips Laboratory at Edwards AFB in California. Each of these systems is configured to process X-ray computed tomography, CT, images. The Hill AFB installation supports the aging surveillance effort on Minuteman third stage motors. The Kelly AFB system supports the acceptance inspection of airframe and engine components and torpedo housing components. The installation at Edwards AFB provides technical support to the other locations. This paper presents the development history, the system design issues, the system hardware and software architecture, and a brief description of the operational systems and their functions.