Sammendrag
A hydraulic cylinder is a mechanical actuator
that is widely used in different industries such as construction, manufacturing, aerospace, and offshore oil and gas.
Seal wear in hydraulic cylinders results in hydraulic fluid
leakage or contamination of the hydraulic fluid. Untimely,
failure of a hydraulic cylinder increases the maintenance
cost and reduces productivity. Therefore, condition monitoring of the hydraulic cylinder is necessary to understand
the current state of equipment. In the literature, there have
been numerous documented attempts to perform condition
monitoring of hydraulic cylinders using different methods,
based on fluid properties, pressure, vibration, and acoustic
emission. However, there have been limited attempts to
present a state-of-the-art review of condition monitoring of
hydraulic cylinders. This article presents an overview of
the methods used for the condition monitoring of hydraulic
cylinders, including the detection of different failure modes
using different sensors, the separability of fault conditions
using sensor-based features, and the ability to pick up incipient faults by sensor-based features. This information
is required for new readers in this area of expertise. This
article summarizes different condition monitoring methods
that have been used from its early implementation to very
recent dates, aiming at clarifying recent advances and identifying challenges in the research of the condition monitoring of hydraulic cylinders. It is anticipated that the information presented in this article will be beneficial for new
researchers and provide directions for future research in
the area of condition monitoring of hydraulic cylinders.
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