Analysis of Component Having Engineered Internal Space for Fluid Flow

摘要

A characteristic of a component having an engineered internal space can be analyzed by recording acoustic signals produced by fluid flow through the internal space at controlled flow rates, and determining one or more acoustic frequencies and acoustic intensities that are indicative of the characteristic of the component. A state and/or a source of the component can be predicted based on the results of such analysis.

主权项

1. A method for analyzing an internal characteristic of a component having an engineered internal space, a fluid entrance and a fluid exit to allow fluid flow through the internal space past a portion of the component for which the internal characteristic is determined, the method comprising, with a computing device:
receiving time-dependent acoustic data signals produced by the component during the fluid flow through the internal space at one or more controlled flow rates; converting the time-dependent acoustic data signals to a frequency-dependent spectrum; extracting frequency and acoustic intensity values from the acoustic data signals in the frequency-dependent spectrum; identifying a frequency in the frequency-dependent spectrum that corresponds to the internal characteristic of the component; and predicting at least one of a state and a source of the component based on the identified frequency and an acoustic intensity value corresponding to the identified frequency.