|
Abstract:
To study
fault detection and diagnostics problem of hydraulic power system in
machinery engineering, the mathematic model and experimental set about
the study, as well as the experimental results are introduced, and four
kinds of standard of detecting fault type about hydraulic power
equipment based on current signal is given, which uses grey association
degree to the spectrum of current signal. The method can detects
reliably machinery fault, motor fault, pump fault of the system. The
method can detect running condition of hydraulic power system on line
because the arithmetic is simple and reliable.
Key words:
Hydraulic
power system Current signal Condition detection Grey
association degree
CLC No: TH165.3 TP206.3
国家自然科学基金资助项目，国家“九五”攀登计划. Received 20000829,
received in revised form 20001021
|