The Diaphragm Pump Spindle Fault Diagnosis Using HHT Based on EMD

ABSTRACT

The running performance of reciprocating piston diaphragm pump spindle affects reciprocating diaphragm pump operating conditions directly, even the effective operation of the entire pipeline transportation systems. Because of the diversity and uncertainty of the diaphragm pump spindle fault, this paper proposes a fault diagnosis method of HHT based on EMD. Firstly, it can process the original signal vibration data by EMD to get some IMF, then analyze each IMF through Hilbert transform to get HHT marginal spectrum, finally study the HHT marginal spectrum of IMF to obtain equipment fault diagnosis and research. The experimental results show that the method of HHT based on EMD is effective and feasible for fault diagnosis of reciprocating piston diaphragm pump spindle.

Keywords: