Resonant signal analysis-based inspection
First Claim
1. A method for resonant signal analysis-based inspection, the method comprising:
- detecting and recording resonances produced by vibrations of a spectrum of frequencies in an in-situ vehicle component as resonance data;
determining a set of characteristics of resonant peaks within each of a plurality of frequency bands of interest of the resonance data;
comparing the set of characteristics with an expected resonance profile for the vehicle component, wherein the expected resonance profile includes a set of expected characteristics for each of the plurality of frequency bands of interest; and
determining a condition of the vehicle component based on the comparing.
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Abstract
A solution for evaluating the condition of a vehicle component based on resonant response profiles across a set of bands of vibrations. The vibrations can be induced into the target component during normal operation of the target component. The resonant response profile of the vehicle component can vary depending on wear or damage, and thus can be used to determine whether the vehicle component can safely remain in use. An embodiment comprises an isolated segment of rail of a length selected to allow a single railroad wheel on it at a time, with a set of devices which can induce specific vibrations into the wheel as it passes, and another set of devices which can acquire the resonance signals from the wheel.
33 Citations
20 Claims
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1. A method for resonant signal analysis-based inspection, the method comprising:
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detecting and recording resonances produced by vibrations of a spectrum of frequencies in an in-situ vehicle component as resonance data; determining a set of characteristics of resonant peaks within each of a plurality of frequency bands of interest of the resonance data; comparing the set of characteristics with an expected resonance profile for the vehicle component, wherein the expected resonance profile includes a set of expected characteristics for each of the plurality of frequency bands of interest; and determining a condition of the vehicle component based on the comparing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system for resonant signal analysis-based inspection of a vehicle component, the system comprising:
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means for inducing vibrations of a spectrum of frequencies into an in-situ vehicle component; means for detecting resonant vibrations created in the vehicle component by the induced vibrations; and a computer system for evaluating the vehicle component by performing a method including; recording the detected resonant vibrations as resonance data for the vehicle component; determining a set of characteristics of resonant peaks within each of a plurality of frequency bands of interest of the resonance data; comparing the set of characteristics with an expected resonance profile for the vehicle component, wherein the expected resonance profile includes a set of expected characteristics for each of the plurality of frequency bands of interest; and determining a condition of the vehicle component based on the comparing. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A system for resonant signal analysis-based inspection of a vehicle component, the system comprising:
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means for detecting resonant vibrations created in the vehicle component during operation of the vehicle component on a vehicle; and a computer system for evaluating the vehicle component by performing a method including; recording the detected resonant vibrations as resonance data for the vehicle component; determining a set of characteristics of resonant peaks within each of a plurality of frequency bands of interest of the resonance data; comparing the set of characteristics with an expected resonance profile for the vehicle component, wherein the expected resonance profile includes a set of expected characteristics for each of the plurality of frequency bands of interest; and determining a condition of the vehicle component based on the comparing. - View Dependent Claims (20)
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Specification