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Acoustic diagnosis of a pump by using neural network

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Abstract

A fundamental study for developing a fault diagnosis system of a pump is performed by using neural network. Acoustic signals were obtained and converted to frequency domain for normal products and artificially deformed products. The neural network model used in this study was 3-layer type composed of input, hidden, and output layer. The normalized amplitudes at the multiples of real driving frequency were chosen as units of input layer. And the codes of pump malfunctions were selected as units of output layer. Various sets of teach signals made from original data by eliminating some random cases were used in the training. The average errors were approximately proportional to the number of untaught data. Neural network trained by acoustic signals can detect malfunction or diagnose fault of a given machine from the results.

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Authors and Affiliations

  1. School of Mechanical Engineering, Kunsan National University, Miryong-dong, Kunsan, 573-701, Jeonbuk, Korea

    Sin-Young Lee

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  1. Sin-Young Lee
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Correspondence to Sin-Young Lee.

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Lee, SY. Acoustic diagnosis of a pump by using neural network. J Mech Sci Technol 20, 2079–2086 (2006). https://doi.org/10.1007/BF02916324

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  • DOI: https://doi.org/10.1007/BF02916324

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