Application of Mean Control Chart Method in the Damage Identification of Pressure Pipe of Pump Station
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Abstract:
The pressure pipe of high-lift pump station can have structural damages due to flow-induced vibration, and the mean control chart method based on the statistical pattern theory was proposed to identify the damage. First, the response information of the measured data was obtained under the normal and to-be-detected conditions, which can be used to develop the system model for damage diagnosis. Then, statistical calculations were performed on numerous data information to extract the eigenvalue and optimize the eigenvector. Finally, the mean control chart method was used to identify the damage in the pressure pipe of the pump station. The results showed that the mean control chart method can identify any damage in the pressure pipe intuitively and accurately, and therefore it can be used as an important method for damage identification of pressure pipe of pump station.
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