Stress Evaluation In High Speed, Rotating Machinery With The Lcr Ultrasonic Technique.
Abstract
The LcR ultrasonic technique is ideally suited for stress
measurement, since it is a bulk longitudinal wave that propagates
just underneath the surface of the item being inspected.
Additionally, it is most sensitive to stress, and least sensitive to
material texture. A description of the LcR probe is included, and
brief summaries are furnished of successful applications of the
technique to stress evaluation in a turbine disk and a generator
retaining ring. Additional discussion is given on an application to
a compressor rotor that was found to be bowed. The measurements
on the compressor rotor were conducted in an industrial shop,
using readily available equipment. Only the probe was specially
designed for the work. Discussions of other possible applications
also are given.
Description
LecturePg. 143-150
Subject
TurbomachinesCollections
Citation
Bray, Don E.; Dietrich, Martin (1997). Stress Evaluation In High Speed, Rotating Machinery With The Lcr Ultrasonic Technique.. Texas A&M University. Turbomachinery Laboratories. Available electronically from https : / /hdl .handle .net /1969 .1 /163434.