Condition monitoring has been an active area of research in many industrial fields during the last decades, particularly in fluid power systems. This paper presents a solution for the fault diagnosis of a variable displacement axial-piston pump, which is a critical component in many hydraulic systems. The proposed methodology follows a data-driven approach including data acquisition and feature extraction and is based on the analysis of acceleration signals through the theory of cyclostationarity. An experimental campaign was carried out on a laboratory test bench with the pump in the flawless state and in faulty states. Different operating conditions were considered and each test was repeated several times in order to acquire a suitable population to verify data repeatability. Results showed the capability of the proposed approach of detecting a typical fault related to worn slippers. Future works will include tests in order to apply the approach to a wider set of faults and the development of a classifier for accurate fault identification.

A methodology based on cyclostationary analysis for fault detection of hydraulic axial piston pumps / Casoli, Paolo; Bedotti, Andrea; Campanini, Federico; Pastori, Mirko. - In: ENERGIES. - ISSN 1996-1073. - 11:7(2018), p. 1874. [10.3390/en11071874]

A methodology based on cyclostationary analysis for fault detection of hydraulic axial piston pumps

Casoli, Paolo
;
Bedotti, Andrea;Campanini, Federico;Pastori, Mirko
2018

Abstract

Condition monitoring has been an active area of research in many industrial fields during the last decades, particularly in fluid power systems. This paper presents a solution for the fault diagnosis of a variable displacement axial-piston pump, which is a critical component in many hydraulic systems. The proposed methodology follows a data-driven approach including data acquisition and feature extraction and is based on the analysis of acceleration signals through the theory of cyclostationarity. An experimental campaign was carried out on a laboratory test bench with the pump in the flawless state and in faulty states. Different operating conditions were considered and each test was repeated several times in order to acquire a suitable population to verify data repeatability. Results showed the capability of the proposed approach of detecting a typical fault related to worn slippers. Future works will include tests in order to apply the approach to a wider set of faults and the development of a classifier for accurate fault identification.
A methodology based on cyclostationary analysis for fault detection of hydraulic axial piston pumps / Casoli, Paolo; Bedotti, Andrea; Campanini, Federico; Pastori, Mirko. - In: ENERGIES. - ISSN 1996-1073. - 11:7(2018), p. 1874. [10.3390/en11071874]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11381/2851231
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