Method for assessing a wear state of a module of a turbomachine, module, and turbomachine
First Claim
1. A method of evaluating a wear state of a component of a pump or a turbine, the method comprising:
- generating a mechanical query signal in a form of a wave having a predefinable signal shape using a signal generator;
providing a sensor in contact with the component of the pump or the turbine;
detecting a response signal generated from the query signal using the sensor in contact with the component;
changing the response signal in dependence on a variation of a physical operating value of the component in accordance with a characteristic pattern; and
determining a wear characteristic of the component based on the change in the response signal and evaluating the wear state of the component based on the wear characteristic.
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Accused Products
Abstract
A method of evaluating a wear state of an assembly of a flow machine, in particular, of a bearing arrangement of a pump or turbine. For determining a wear characteristic, a mechanical query signal having a pre-definable signal shape is generated by a signal generator and a response signal generated from the query signal is detected using a sensor in contact with the assembly. The response signal is varied in dependence on a variation of a physical operating value of the assembly in accordance with a characteristic pattern, the wear characteristic is determined from the variation of the response signal and the wear state is evaluated using the wear characteristic.
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Citations
17 Claims
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1. A method of evaluating a wear state of a component of a pump or a turbine, the method comprising:
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generating a mechanical query signal in a form of a wave having a predefinable signal shape using a signal generator; providing a sensor in contact with the component of the pump or the turbine; detecting a response signal generated from the query signal using the sensor in contact with the component; changing the response signal in dependence on a variation of a physical operating value of the component in accordance with a characteristic pattern; and determining a wear characteristic of the component based on the change in the response signal and evaluating the wear state of the component based on the wear characteristic. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A flow machine comprising:
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an assembly including a bearing arrangement of a pump or turbine; a signal generator configured to generate a mechanical query signal in a form of a wave, the signal generator disposed on the assembly; and a surface acoustic wave sensor in contact with the assembly, the surface acoustic wave sensor being configured to detect a response signal generated from the query signal. - View Dependent Claims (15, 16, 17)
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Specification