期刊论文详细信息
Open Engineering | |
Time-frequency analysis of the Surge Onset in the Centrifugal Blower | |
Horodko Longin1  Liskiewicz Grzegorz1  | |
[1] Łódz University of Technology, Institute of Turbomachinery 90 - 924 Łódz, ul. Wólczanska 219/223; | |
关键词: compressor; blower; surge; unstable flow; time-frequency; continuous wavelet transform; CWT; | |
DOI : 10.1515/eng-2015-0040 | |
来源: DOAJ |
【 摘 要 】
Time frequency analysis of the surge onset was performed in the centrifugal blower. A pressure signal was registered at the blower inlet, outlet and three locations at the impeller shroud. The time-frequency scalograms were obtained by means of the Continuous Wavelet Transform (CWT). The blower was found to successively operate in four different conditions: stable working condition, inlet recirculation, transient phase and deep surge. Scalograms revealed different spectral structures of aforementioned phases and suggest possible ways of detecting the surge predecessors.
【 授权许可】
Unknown