Leakage Flow Detection in a Fluid Power Speed Control System Using a Personal-Computer-Based Condition Monitoring Package
Proceedings of the Institution of Mechanical Engineers Part B Management and engineering manufacture
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1988 ◽
Vol 202
(4)
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pp. 213-226
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Keyword(s):
Low Cost
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A relatively low-cost personal-computer-based system is used to condition monitor a servo-valve-motor speed control system. Line pressures-flowrates together with motor torque-speed are monitored via 12 bit analogue to digital converters, and a set of performance characteristics are transformed into a mathematical model for the system in its run-in condition. Leakage flows are then introduced from each line, to simulate the onset of failure, and across the lines to simulate motor cross-port leakage deterioration. A graphics and software package is then developed and used to indicate which of the faults is occurring.